ccna 4 final q&a

8/3/2019 CCNA 4 Final Q&A

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1. Identify the factors that contribute to congestion on an Ethernet LAN. (Choose three.)**improper placement of enterprise level servers**addition of hosts to a physical segmentreplacement of hubs with workgroup switches**increasing use of bandwidth intensive network applicationsmigration to full-duplex Ethernet within the LAN

2. Which of the following are examples of TCP/IP application layer protocols? (Choose three.)**a terminal emulation protocol that supports remote console connections with various network devicesa protocol created by IBM that makes it easier for mainframes to connect to remote offices

**a protocol responsible for transporting electronic mail on TCP/IP networks and the Interneta protocol that controls the rate at which data is sent to another computer**a protocol that exchanges network management information between a network device and a management console

3. Which of the following eliminates switching loops?hold-down timerspoison reverse**spanning tree protocoltime to livesplit horizon protocol

4. The show cdp neighbors command is a very useful network troubleshooting tool. Using the output in the graphicselect the statements that are true. (Choose two.)CDP operates at the network layer of the OSI model.**The output of this command displays information about directly connected Cisco devices only.The switch is attached to the SanJose1 FastEthernet0/21 interface.SanJose1 is running CDP version 12.0.SanJose1 has two fully operational, cdp-enabled Cisco switches directly connected to it.**SanJose2 is a 2600 series router running several routed protocols

5. A network administrator can ping the Denver router, but gets a Password Required but None Set message whentrying to connect remotely via Telnet. Which command sequence must be applied to the Denver router to allowremote access?Router(config)# line console 0Router(config-line)# loginRouter(config-line)# password cisco**Router(config)# line vty 0 4

Router(config-line)# loginRouter(config-line)# password ciscoRouter(config)# line virtual terminalRouter(config-line)# enable loginRouter(config-line)# password ciscoRouter(config)# line vty 0 4Router(config-line)# enable secretRouter(config-line)# password ciscoRouter(config)# enable secret ciscoRouter(config)# enable cisco

1. A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users.

The ISP for this network can only supply five public IPs. What can be used to accomplish this task? routable translationdynamic translationstatic translation**port address translation

2. The LAN attached to the Ethernet interface of the Raleigh router shown in the graphic is addressed with private IPaddresses. If one public IP is assigned to the company, which commands could be used in a configuration thatallows all devices with private IPs in this network to access the Internet? (Choose two.)**ip nat inside source list 1 interface serial0 overloadip nat outside source list 1 interface serial0 overloadip nat inside serial0**ip nat inside source list 1 pool Raleigh overload


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ip nat inside Raleigh overloadip inside nat source list 1 interface serial0 Raleigh

3. The command output shown in the graphic was taken from a Cisco 806 broadband router. Which kind ofaddress translation is in effect on this router?staticdynamic**overloadprivatepublic

4. Which of the following IP addresses are defined by RFC 1918 as private addresses? (Choose three.) **192.168.146.0/22172.10.25.0/16**172.31.0.0/1620.0.0.0/8**10.172.92.8/29

5. How will data be transmitted from the router to the ISP if the router has the two links shown in the graphic? Both links will transmit data at the same rate.1544 bits can be transmitted simultaneously from the router over the T1 line.**Both links will transmit bits one by one.The 56K link will transmit a maximum of 53 bits at the same time.

1. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be theresult of this process?Traffic is only forwarded from SDM-trusted Cisco routers.Security testing is performed and the results are saved as a text file stored in NVRAM.**The router is tested for potential security problems and any necessary changes are made.All traffic entering the router is quarantined and checked for viruses before being forwarded.

2. Refer to the exhibit. A network administrator is trying to configure a router to use SDM but it is not functioningcorrectly. What could be the problem?The username and password are not configured correctly.The authentication method is not configured correctly.The HTTP timeout policy is not configured correctly.

**The vtys are not configured correctly.

3. Refer to the exhibit. How is the TCP/IP configuration information specified by the default-router and dns-servercommands made available?The TCP/IP information is forwarded to a 10.0.1.3 to be supplied to DHCP clients.**The TCP/IP information is used by DHCP clients that are configured to request a configuration from R1.The TCP/IP information is supplied to any DHCP client on the network connected to the FastEthernet 0/0 interface of R1.The TCP/IP information is applied to each packet that enters R1 through the FastEthernet 0/0 interface that are hosts on the10.0.1.0 /24 network except packets from addresses 10.0.1.2, 10.0.1.16, and 10.0.1.254.

4. What is a major characteristic of a worm? malicious software that copies itself into other executable programstricks users into running the infected softwarea set of computer instructions that lies dormant until triggered by a specific event

**exploits vulnerabilities with the intent of propagating itself across a network

5. Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat command?The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host.The native 10.1.200.254 address is being translated to 192.168.0.10.**The 192.168.0.0/24 network is the inside network.Port address translation is in effect.

1. Which of the following describes the roles of devices in a WAN? (Choose three.) **A CSU/DSU terminates a digital local loop.A modem terminates a digital local loop.A CSU/DSU terminates an analog local loop.**A modem terminates an analog local loop.


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**A router is commonly considered a DTE device.A router is commonly considered a DCE device.

2. What value in the address field of a Frame Relay header identifies the destination of the frame? CIRDE**DLCIISDNFRADPVC

3. The serial PPP link between the Left and Right routers is configured as shown in the diagram. Whichconfiguration issue explains why the link is unable to establish a PPP session?The IP addresses must be on different subnets.**The usernames are misconfigured.The passwords must be different for the CHAP authentication.The clock rate must be 56000.The clock rate is configured on the wrong end of the link.Interface serial 0/0 on Left must connect to interface serial 0/1 on Right.

4. The output of the show interfaces serial 0/0 command for a frame-relay connection indicates that the serial line isup but the line protocol is down. What are possible causes for this? (Choose two.) **There is an LMI-type mismatch between the Frame Relay switch and the router.There is no clock present on the serial interface.The interface is shut down.RARP is not functioning on the router.**The cable is disconnected.

5. Which statements are correct about the point in the network where the responsibility of the service providerends? (Choose three.)**The International point is on the customer side of the network terminating unit(NTU).**The United States point is at the interface of the customer-provided equipment and the local loop.The responsibility for this point is controlled by IANA.**The point is called the demarcation point.The point is typically located at the service providers central office.The point is located between the customers local area networks.

*************************************************************************************

1. Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What isthe cause of the problem?

The default gateway is in the wrong subnet.STP has blocked the port that PC1 is connected to.Port Fa0/2 on S2 is assigned to the wrong VLAN.S2 has the wrong IP address assigned to the VLAN30 interface.

2. Which Frame Relay flow control mechanism is used to signal routers that they should reduce the flow rate of frames?DEBECIRFECNCBIR

3. What is the result of adding the global command service password-encryption to the configuration of a router?Line passwords are encrypted with type 7 encryption.Enable passwords are encrypted with type 5 encryption.All services must provide an encrypted password to function.Only encrypted messages are allowed for router communication.*******************************************************************************************************************************************


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1

Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the

commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is

successfully established at both locations. Why is the PVC failing?

The PVC to R1 must be point-to-point.

LMI types must match on each end of a PVC.

The frame relay PVCs cannot be established between Cisco and non-Cisco routers.

The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.

1.What functionality do access control lists provide in the implementation of dynamic NAT on a Cisco router?

define which addresses can be translated

define which addresses are assigned to a NAT pool

define which addresses are allowed out the router

define which addresses can be accessed from the inside network

2.Which three guidelines would help contribute to creating a strong password policy? (Choose three.)

Once a good password is created, do not change it.

Deliberately misspell words when creating passwords.

Create passwords that are at least 8 characters in length.

Use combinations of upper case, lower case, and special characters.

Write passwords in locations that can be easily retrieved to avoid being locked out.

Use long words found in the dictionary to make passwords that are easy to remember.

3.

Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What is a possible

problem?

There is insufficient RAM for the IOS to load on this router.

A password recovery process should be done on this router.

The bootstrap version and the version of the IOS are different.

The IOS image is damaged and must be reloaded using tftpdnld.

The configuration register is set to ignore the startup configuration.

4.Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?

BE

DE

CIR
http://www.ccna4u.net/wp-content/uploads/2011/05/011.pnghttp://www.ccna4u.net/wp-content/uploads/2011/05/011.png


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CBIR

5.

Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip

dhcp server command shows DHCPD: there is no address pool for 10.1.1.1. What is the problem?

The 10.1.1.1 address is already configured on Fa0/0.

The default router for the 10Network pool is incorrect.

The ip helper-address must be added to Fa0/0 interface.

The pool of addresses for the 10Network pool is incorrect.

6.Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

ATMFrame Relay

HDLC

PPP

SDLC

7.

Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request that enters interface s0/0/0 and is

destined for an FTP server at IP address 192.168.1.5?

The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 192.168.1.0 0.0.0.255 anycommand,

continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the

packet.

The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by the access-lis

101 permit ip any anycommand.

The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 192.168.1.0 0.0.0.255 command and

allows the packet into the router.

It matches the incoming packet to the statement that was created by the access-list 201 permit ip any anycommand and allows the packet into the

router.

8. Compared with IDS systems, what can IPS systems do to provide further protection of computer systems?

detect potential attacks

stop the detected attack from executing

update OS patches for computer systems

scan computer systems for viruses and spyware

9.Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable?

Wi-Fi

satellite

WiMAX

Metro Ethernet

10.A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the

administrator determine if the additions and changes improved performance and availability on the company intranet?

Conduct a performance test and compare with the baseline that was established previously.

Interview departmental secretaries and determine if they think load time for web pages has improved.

Determine performance on the intranet by monitoring load times of company web pages from remote sites.

Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.

11.

Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?

The bandwidth capability of the interface increases and decreases automatically based on BECNs.

The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.

The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.

DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

12.Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established

between the source and destination?

extended

reflexive

standard

time-based

13.Which two statements are true about IPv6 link local addresses? (Choose two.)

They begin with the 2000::/3 prefix.

They begin with the FE80::/10 prefix.


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They are assigned by IANA to an organization.

They must be manually configured by the administrator.

They are assigned to a host by a stateless autoconfiguration process.

14.A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that

dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)

reduced jitter

reduced costs

reduced latency

the ability to burst above guaranteed bandwidth

the ability to borrow unused bandwidth from the leased lines of other customers15.

Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited

command output, what will be the result when attempting to connect to R1?

failure to connect due to Telnet not being enabled

failure to connect due to incomplete configuration for Telnet

a successful connection and ability to make configuration changes

a successful connection but inability to make configuration changes because of the absence of an enable secret password

16.What are two effective measures for securing routers? (Choose two.)

Protect all active router interfaces by configuring them as passive interfaces.

Configure remote administration through VTY lines for Telnet access.

Use quotes or phrases to create pass phrases.

Disable the HTTP server service.

Enable SNMP traps.

17.An issue of response time has recently arisen on an application server. The new release of a software package has also been install

on the server. The configuration of the network has changed recently. To identify the problem, individuals from both teams

responsible for the recent changes begin to investigate the source of the problem. Which statement applies to this situation?

Scheduling will be easy if the network and software teams work independently.

It will be difficult to isolate the problem if two teams are implementing changes independently.

Results from changes will be easier to reconcile and document if each team works in isolation.

Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.

18.

Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated?

application

transport

network

data link

physical

19.Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?

Inverse ARP

LMI

DLCI

FECN

20.An administrator learns of an e-mail that has been received by a number of users in the company. This e-mail appears to come fro

the office of the administrator. The e-mail asks the users to confirm their account and password information. Which type of security

threat does this e-mail represent?

cracking

phishing

phreaking

spamming

21.

Refer to the exhibit. Which data transmission technology is being represented?

TDM

PPP

HDLC

SLIP

22.


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Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN

11 was created on S1. Why is VLAN 11 missing from S2?

There is a Layer 2 loop.

The VTP domain names do not match.

Only one switch can be in server mode.

S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

23.What is the result of adding the global command service password-encryption to the configuration of a router?

Line passwords are encrypted with type 7 encryption.

Enable passwords are encrypted with type 5 encryption.

All services must provide an encrypted password to function.Only encrypted messages are allowed for router communication.

24.While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows

up, line protocol up. The administrator cannot ping the server. At which layer of the OSI model is the problem most likelyto be

found?

application layer

network layer

data link layer

physical layer

25.Where does a service provider assume responsibility from a customer for a WAN connection?

local loop

DTE cable on router

demarcation point

demilitarized zone

26.What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local route

that has been configured as a DHCP server?

Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.

Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.

The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.

The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.

27.

Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are

shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict

other traffic between the two networks?

Apply the ACL in the inbound direction.

Apply the ACL on the FastEthernet 0/0 interface.

Reverse the order of the TCP protocol statements in the ACL.

Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .

28.

Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If

VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?

/19

/20

/21

/22

/23

/24

29.

Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing

updates. What will fix the issue?

Enable RIP authentication on R2.

Issue the ip directed-broadcast command on R2.

Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.

Enable CDP on R2 so that the other routers will receive routing updates.

30.

Refer to the exhibit. This serial interface is not functioning correctly. Based on the output shown, what is the most likely cause?

improper LMI type

interface reset


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PPP negotiation failure

unplugged cable

31.Which statement is true about PAP in the authentication of a PPP session?

PAP uses a two-way handshake.

The password is unique and random.

PAP conducts periodic password challenges.

PAP uses MD5 hashing to keep the password secure.

32.An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message

when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?

When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.Incorrect IPv4 addresses are entered on the router interfaces.

RIPng is incompatible with dual-stack technology.

IPv4 is incompatible with RIPng.

33.What is tunneling?

using digital certificates to ensure that data endpoints are authentic

creating a hash to ensure the integrity of data as it traverses a network

using alternate paths to avoid access control lists and bypass security measures

encapsulating an entire packet within another packet for transmission over a network

34.Which statement is true about NCP?

Link termination is the responsibility of NCP.

Each network protocol has a corresponding NCP.

NCP establishes the initial link between PPP devices.

NCP tests the link to ensure that the link quality is sufficient.

35.

Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication

between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?

Replace the serial cable .

Replace the WIC on RA.

Configure RA with a clock rate command.

Issue a no shutdown interface command on RB.

36.

Refer to the exhibit. Based on the output as shown, which two statements correctly define how the router will treat Telnet traffic that

comes into interface FastEthernet 0/1? (Choose two).

Telnet to 172.16.10.0/24 is denied.


Telnet to 172.16.0.0/24 is permitted.



37.Which Frame Relay flow control mechanism is used to signal routers that they should reduce the flow rate of frames?

DE

BE

CIR

FECN

CBIR

38.

Refer to the exhibit. A network administrator configures a standard access control list on Router1 to prohibit traffic from the

192.168.0.0/24 network from reaching the Internet. The access control list also permits traffic from the 192.168.0.0/24 network to

reach the 192.168.1.0/24 network. On which interface and in which direction should the access control list be applied?

interface Fa0/0, inbound

interface Fa0/0, outbound

interface S0/0/0, inbound

interface S0/0/0, outbound

39.Which configuration on the vty lines provides the best security measure for network administrators to remotely access the core

routers at headquarters?

Answer: 3nd option

40.

Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat command?


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The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host.

The native 10.1.200.254 address is being translated to 192.168.0.10.

The 192.168.0.0/24 network is the inside network.

Port address translation is in effect.

41.A network administrator is instructing a technician on best practices for applying ACLs. Which suggestion should the administrat

provide?

Named ACLs are less efficient than numbered ACLs.

Standard ACLs should be applied closest to the core layer.

ACLs applied to outbound interfaces are the most efficient.

Extended ACLs should be applied closest to the source that is specified by the ACL.42.

Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology

would be best suited to provide secure connectivity between headquarters and both branch offices?

ATM

VPN

ISDN

Frame Relay

broadband DSL

43.Which three physical network problems should be checked when a bottom-up troubleshooting approach has been chosen to

troubleshoot network performance? (Choose three.)

cable connectivity

high collision counts

STP failures and loops

address mapping errors

high CPU utilization rates

excess packets that are filtered by the firewall

44.

Refer to the exhibit. A network administrator is attempting to configure a Frame Relay network. The administrator enters the

commands as shown in the exhibit on R2, but the Frame Relay PVCs are inactive. What is the problem?

The incorrect DLCI numbers are being configured on R2.

The S0/0/0 interface on R2 needs to be point-to-point.

The frame-relay map commands are missing the cisco keyword at the end.

A single router interface cannot connect to more than one Frame Relay peer at a time.

45.Which IP address and wildcard mask would be used in an ACL to block traffic from all hosts on the same subnet as host

192.168.16.43/28?

access-list 10 deny 192.168.16.0 0.0.0.31

access-list 10 deny 192.168.16.16 0.0.0.31

access-list 10 deny 192.168.16.32 0.0.0.16

access-list 10 deny 192.168.16.32 0.0.0.15

access-list 10 deny 192.168.16.43 0.0.0.16

46.Which combination of Layer 2 protocol and authentication should be used to establish a link without sending authentication

information in plain text between a Cisco and a non-Cisco router?

PPP with PAP

PPP with CHAP

HDLC with PAP

HDLC with CHAP

47.When would the multipoint keyword be used in Frame Relay PVCs configuration?

when global DLCIs are in use

when using physical interfaces

when multicasts must be supported

when participating routers are in the same subnet

48.A network technician analyzes the network and notices late collisions. The collisions occur accompanied by jabber that originates

from the server. What is the likely cause of the problem?

faulty switch port

web server CPU overload

faulty NIC in the web server

misconfiguration of web server services


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49.

Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to the web server. Wh

is the destination IP address of the return packet from the web server?

10.1.1.2:1234

172.30.20.1:1234

172.30.20.1:3333

192.168.1.2:80

50.

Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of

the problem?The default gateway is in the wrong subnet.

STP has blocked the port that PC1 is connected to.

Port Fa0/2 on S2 is assigned to the wrong VLAN.

S2 has the wrong IP address assigned to the VLAN30 interface.

51.When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtu

circuits?

LCP

LMI

DLCI

Inverse ARP

52.A network administrator is tasked with maintaining two remote locations in the same city. Both locations use the same service

provider and have the same service plan for DSL service. When comparing download rates, it is noticed that the location on the East

side of town has a faster download rate than the location on the West side of town. How can this be explained?

The West side has a high volume of POTS traffic.

The West side of town is downloading larger packets.

The service provider is closer to the location on the East side.

More clients share a connection to the DSLAM on the West side.

****************************************************************************

1. What functionality do access control lists provide in the implementation of dynamic NAT on a Cisco router?define which addresses can be translateddefine which addresses are assigned to a NAT pool

define which addresses are allowed out the router

define which addresses can be accessed from the inside network

2. Which three guidelines would help contribute to creating a strong password policy? (Choose three.) Once a good password is created, do not change it.

Deliberately misspell words when creating passwords.Create passwords that are at least 8 characters in length.Use combinations of upper case, lower case, and special

3.Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What ispossible problem?There is insufficient RAM for the IOS to load on this router.

A password recovery process should be done on this router.

The bootstrap version and the version of the IOS are different.

The IOS image is damaged and must be reloaded using tftpdnld.The configuration register is set to ignore the startup configuration.


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4. Which option correctly defines the capacity through the local loop guaranteed to a customer by the serviceprovider?BE

DE

CIRCBIR

5.Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output

of the debug ip dhcp server command shows DHCPD: there is no address pool for 10.1.1.1. What is the problem?The 10.1.1.1 address is already configured on Fa0/0.

The default router for the 10Network pool is incorrect.

The ip helper-address must be added to Fa0/0 interface.The pool of addresses for the 10Network pool is incorrect.6. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routersATM

Frame Relay

HDLCPPP

SDLC

7.Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request that entersinterface s0/0/0 and is destined for an FTP server at IP address 192.168.1.5? The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 192.168.1.00.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that nosubsequent statements allow FTP, and then the router drops the packet.The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement thwas created by the access-list 101 permit ip any any command.The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 192.168.10.0.0.255 command and allows the packet into the router.

It matches the incoming packet to the statement that was created by the access-list 201 permit ip any any command andallows the packet into the router.8. Compared with IDS systems, what can IPS systems do to provide further protection of computer systems? detect potential attacks

stop the detected attack from executingupdate OS patches for computer systems

scan computer systems for viruses and spyware

9. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable toDSL and cable?Wi-Fi

satellite

WiMAXMetro Ethernet

10. A network administrator has changed the VLAN configurations on his network switches over the past weekend.How can the administrator determine if the additions and changes improved performance and availability on thecompany intranet?Conduct a performance test and compare with the baseline that was established previously.Interview departmental secretaries and determine if they think load time for web pages has improved.

Determine performance on the intranet by monitoring load times of company web pages from remote sites.

Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks


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11.Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?The bandwidth capability of the interface increases and decreases automatically based on BECNs.

The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

12. Which type of ACL will permit traffic inbound into a private network only if an outbound session has alreadybeen established between the source and destination?extended

reflexivestandard

time-based

13. Which two statements are true about IPv6 link local addresses? (Choose two.)They begin with the 2000::/3 prefix.They begin with the FE80::/10 prefix.

They are assigned by IANA to an organization.They must be manually configured by the administrator.

They are assigned to a host by a stateless autoconfiguration process.

14. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are twoadvantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)reduced jitterreduced costs

reduced latencythe ability to burst above guaranteed bandwidth

the ability to borrow unused bandwidth from the leased lines of other customers

15.Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Baseon the exhibited command output, what will be the result when attempting to connect to R1?

failure to connect due to Telnet not being enabled

failure to connect due to incomplete configuration for Telnet

a successful connection and ability to make configuration changesa successful connection but inability to make configuration changes because of the absence of an enable secret password

16. What are two effective measures for securing routers? (Choose two.)Protect all active router interfaces by configuring them as passive interfaces.Configure remote administration through VTY lines for Telnet access.Use quotes or phrases to create pass phrases.

Disable the HTTP server service.

Enable SNMP traps.

17. An issue of response time has recently arisen on an application server. The new release of a software packagehas also been installed on the server. The configuration of the network has changed recently. To identify theproblem, individuals from both teams responsible for the recent changes begin to investigate the source of theproblem. Which statement applies to this situation?Scheduling will be easy if the network and software teams work independently.

It will be difficult to isolate the problem if two teams are implementing changes independently.Results from changes will be easier to reconcile and document if each team works in isolation.

Only results from the software package should be tested as the network is designed to accommodate the proposed softwareplatform.


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18.Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model isfault indicated?application

transport

networkdata link

physical

19. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a FrameRelay network?Inverse ARPLMI

DLCI

FECN

20. An administrator learns of an e-mail that has been received by a number of users in the company. This e-mailappears to come from the office of the administrator. The e-mail asks the users to confirm their account andpassword information. Which type of security threat does this e-mail represent?cracking

phishingphreaking

spamming

21.Refer to the exhibit. Which data transmission technology is being represented?TDMPPP

HDLC

SLIP

22.Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayedin the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2? There is a Layer 2 loop.

The VTP domain names do not match.Only one switch can be in server mode.

S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

23. What is the result of adding the global command service password-encryption to the configuration of a router?Line passwords are encrypted with type 7 encryption.

Enable passwords are encrypted with type 5 encryption.

All services must provide an encrypted password to function.Only encrypted messages are allowed for router communication.

24. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used bythe server shows up, line protocol up. The administrator cannot ping the server. At which layer of the OSI model ithe problem most likely to be found?application layer

network layerdata link layer

physical layer


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25. Where does a service provider assume responsibility from a customer for a WAN connection? local loop

DTE cable on router

demarcation pointdemilitarized zone

26. What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to theconfiguration of a local router that has been configured as a DHCP server?Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.

Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.

The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.

27.Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands forrouter Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action willcorrect the problem but still restrict other traffic between the two networks?Apply the ACL in the inbound direction.

Apply the ACL on the FastEthernet 0/0 interface.

Reverse the order of the TCP protocol statements in the ACL.Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .28.Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use atbranch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal wasfrom unused addresses?

/19

/20

/21

/22/23

/24

29.Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not receivedany RIP routing updates. What will fix the issue?Enable RIP authentication on R2.Issue the ip directed-broadcast command on R2.Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.

Enable CDP on R2 so that the other routers will receive routing updates.

30.Refer to the exhibit. This serial interface is not functioning correctly. Based on the output shown, what is the mostlikely cause?improper LMI type

interface reset

PPP negotiation failureunplugged cable

31. Which statement is true about PAP in the authentication of a PPP session?PAP uses a two-way handshake.The password is unique and random.

PAP conducts periodic password challenges.


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PAP uses MD5 hashing to keep the password secure.

32. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receivesan error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem? When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newertechnology.

Incorrect IPv4 addresses are entered on the router interfaces.

RIPng is incompatible with dual-stack technology.

IPv4 is incompatible with RIPng.33. What is tunneling?using digital certificates to ensure that data endpoints are authentic

creating a hash to ensure the integrity of data as it traverses a network

using alternate paths to avoid access control lists and bypass security measures

encapsulating an entire packet within another packet for transmission over a network34. Which statement is true about NCP?Link termination is the responsibility of NCP.

Each network protocol has a corresponding NCP.NCP establishes the initial link between PPP devices.

NCP tests the link to ensure that the link quality is sufficient.

35.Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, thecommunication between the two routers cannot be established. Based on the output of the commands, what can bedone to solve the problem?Replace the serial cable .

Replace the WIC on RA.

Configure RA with a clock rate command.Issue a no shutdown interface command on RB.36.

Refer to the exhibit. Based on the output as shown, which two statements correctly define how the router will treatTelnet traffic that comes into interface FastEthernet 0/1? (Choose two). Telnet to 172.16.10.0/24 is denied.



Telnet to 172.16.10.0/24 is permitted.Telnet to 172.16.20.0/24 is permitted.

37. Which Frame Relay flow control mechanism is used to signal routers that they should reduce the flow rate offrames?DE

BE

CIR

FECNCBIR

38.Refer to the exhibit. A network administrator configures a standard access control list on Router1 to prohibit trafficfrom the 192.168.0.0/24 network from reaching the Internet. The access control list also permits traffic from the192.168.0.0/24 network to reach the 192.168.1.0/24 network. On which interface and in which direction should theaccess control list be applied?interface Fa0/0, inbound


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interface Fa0/0, outbound

interface S0/0/0, inbound

interface S0/0/0, outbound39. Which configuration on the vty lines provides the best security measure for network administrators to remotelyaccess the core routers at headquarters?Answer: 3nd option

40.Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat command?

The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host.

The native 10.1.200.254 address is being translated to 192.168.0.10.

The 192.168.0.0/24 network is the inside network.Port address translation is in effect.

41. A network administrator is instructing a technician on best practices for applying ACLs. Which suggestionshould the administrator provide?Named ACLs are less efficient than numbered ACLs.

Standard ACLs should be applied closest to the core layer.

ACLs applied to outbound interfaces are the most efficient.

Extended ACLs should be applied closest to the source that is specified by the ACL.42.Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. WhichWAN technology would be best suited to provide secure connectivity between headquarters and both branchoffices?ATM

VPNISDN

Frame Relay

broadband DSL

43. Which three physical network problems should be checked when a bottom-up troubleshooting approach hasbeen chosen to troubleshoot network performance? (Choose three.) cable connectivityhigh collision countsSTP failures and loops

address mapping errors

high CPU utilization ratesexcess packets that are filtered by the firewall

44.Refer to the exhibit. A network administrator is attempting to configure a Frame Relay network. The administrator

enters the commands as shown in the exhibit on R2, but the Frame Relay PVCs are inactive. What is the problem?The incorrect DLCI numbers are being configured on R2.The S0/0/0 interface on R2 needs to be point-to-point.

The frame-relay map commands are missing the cisco keyword at the end.A single router interface cannot connect to more than one Frame Relay peer at a time.

45. Which IP address and wildcard mask would be used in an ACL to block traffic from all hosts on the same subneas host 192.168.16.43/28?access-list 10 deny 192.168.16.0 0.0.0.31

access-list 10 deny 192.168.16.16 0.0.0.31

access-list 10 deny 192.168.16.32 0.0.0.16


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access-list 10 deny 192.168.16.32 0.0.0.15

access-list 10 deny 192.168.16.43 0.0.0.1646. Which combination of Layer 2 protocol and authentication should be used to establish a link without sendingauthentication information in plain text between a Cisco and a non-Cisco router?PPP with PAP

PPP with CHAPHDLC with PAP

HDLC with CHAP

47. When would the multipoint keyword be used in Frame Relay PVCs configuration?when global DLCIs are in use

when using physical interfaces

when multicasts must be supported

when participating routers are in the same subnet48. A network technician analyzes the network and notices late collisions. The collisions occur accompanied byjabber that originates from the server. What is the likely cause of the problem?faulty switch port

web server CPU overload

faulty NIC in the web server

misconfiguration of web server services

49.Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet tothe web server. What is the destination IP address of the return packet from the web server? 10.1.1.2:1234

172.30.20.1:1234

172.30.20.1:3333192.168.1.2:80

50.Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway.What is the cause of the problem?The default gateway is in the wrong subnet.

STP has blocked the port that PC1 is connected to.

Port Fa0/2 on S2 is assigned to the wrong VLAN.S2 has the wrong IP address assigned to the VLAN30 interface.

51. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information aboutthe status of virtual circuits?LCP

LMIDLCI

Inverse ARP

52. A network administrator is tasked with maintaining two remote locations in the same city. Both locations use thsame service provider and have the same service plan for DSL service. When comparing download rates, it isnoticed that the location on the East side of town has a faster download rate than the location on the West side oftown. How can this be explained?The West side has a high volume of POTS traffic.

The West side of town is downloading larger packets.

The service provider is closer to the location on the East side.


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More clients share a connection to the DSLAM on the West side.

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ccna 4 final q&a

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