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TRANSCRIPT
1. Which functions are provided by LCP and NCP as part of the PPP layered
architecture?
LCP sets up the PPP connection and its parameters. NCP terminates the PPP
connection.
LCP sets up the PPP connection and its parameters. NCP handles higher layer
protocol configurations.
LCP includes the link-establishment phase. NCP includes link-maintenance and link-
termination phases.
LCP negotiates options for multiple network layer protocols. NCP agrees
automatically on encapsulation formats.
2.
Refer to the exhibit. EIGRP has been configured on routers R1 and R2. Connectivity
across the Frame Relay switch between routers R1 and R2 is successfully verified
using the ping command. However, no EIGRP routes are appearing in the routing
table. What could be a cause for this failure?
The Frame Relay switch has failed.
The frame-relay map statement is incorrect.
The S0/0/0 interface of router R1 is administratively down.
The S0/0/0 interface of router R2 has an incorrect IP address.
3.
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.
4.
Refer to the exhibit. A network administrator is considering updating the IOS on
Router1. What version of IOS is currently installed on Router1?
1
12.4
15
1841
5.
Refer to the exhibit. What is placed in the address field in the header of a frame
that will travel from the San Jose router to the DC router?
DLCI 103
DLCI 301
172.16.1.18
172.16.1.19
7.
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?
(Choose two.)
Apply the ACL in the inbound direction on the FastEthernet 0/0 interface
Apply the ACL in the outound direction ...
Apply the ACL on the FastEthernet 0/0 interface.
Change the protocol …
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 .
8. Which combination of authentication and Layer 2 protocol should be used to
establish a link between a Cisco and a non-Cisco router without sending
authentication information in plain text?
CHAP and HDLC
CHAP and PPP
PAP and HDLC
PAP and PPP
9. Which statement is true about wildcard masks?
A wildcard mask must be created by inverting the subnet mask.
A wildcard mask performs the same function as a subnet mask.
A wildcard mask of 0.0.0.0 means the address should match exactly.
A wildcard mask uses a "1" to identify IP address bits that must be checked.
10.
Refer to the exhibit. ACL 120 is configured to allow traffic coming from
192.168.10.0/24 network to go to any destination limited to ports 80 and 443. ACL
130 should allow only requested HTTP traffic to flow back into the network. What
additional configuration is needed in order for the access lists to fulfill the
requirements?
11.
Refer to the exhibit. Communication between two peers has failed. Based on the
output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
12.
Refer to the exhibit. Which statement about the configuration is true?
10.10.10.1 is most likely assigned to the local LAN interface.
10.10.10.1 through 10.10.10.255 is available to be assigned to users.
All DHCP clients looking for an IP address will use 10.10.10.1 and 10.10.10.2.
All DHCP clients in the 10.10.10.0/24 network will use 10.10.10.2 as the default
gateway.
13. Which statement is true about an interface that is configured with the IPv6
address command?
IPv6 traffic-forwarding is enabled on the interface.
A link-local IPv6 address is automatically configured on the interface.
A global unicast IPv6 address is dynamically configured the interface.
Any IPv4 addresses that are assigned to the interface are replaced with an IPv6
address.
14.
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
15. 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.
16. What can a network administrator do to recover from a lost router password?
use the copy tftp: flash: command
boot the router to bootROM mode and enter the b command to load the IOS
manually
telnet from another router and issue the show running-config command to view
the password
boot the router to ROM monitor mode and configure the router to ignore the startup
configuration when it initializes
17. A system administrator must provide Internet connectivity for ten hosts in a
small remote office. The ISP has assigned two public IP addresses to this remote
office. How can the system administrator configure the router to provide Internet
access to all ten users at the same time?
Configure static NAT.
Configure dynamic NAT.
Configure static NAT with overload.
Configure dynamic NAT with overload.
18. Which statement is true about the PPP authentication phase?
CHAP uses a 2-way handshake to exchange the credentials.
PAP can perform continuous authentication after a link is established.
CHAP sends an encrypted username and password during the authentication
process.
The authentication phase takes place before the NCP configuration phase begins.
19.
Refer to the exhibit. A network administrator is configuring Frame Relay on router
HQ. It is desired that each Frame Relay PVC between the routers be in a separate
subnet. Which two commands on HQ will accomplish this task for the connection to
R1? (Choose two.)
HQ(config)# interface S0/0/0
HQ(config)# interface S0/0/0.1 multipoint
HQ(config)# interface S0/0/0.1 point-to-point
HQ(config-subif)# frame-relay interface dlci 103
HQ(config-subif)# frame-relay interface dlci 301
HQ(config-if)# frame-relay map ip 172.16.1.1 255.255.255.0 301 broadcast
20. Which wildcard mask would specify all IP addresses from 192.168.8.0 through
192.168.15.255?
0.0.0.7
0.0.7.255
0.0.8.255
0.0.15.255
0.0.255.255
21.
Refer to the exhibit. WestSW is supposed to send VLAN information to EastSW, but
that did not occur. What will force WestSW to send a VLAN update to EastSW?
Change EastSW to be a VTP server.
Reload both WestSW and EastSW at the same time.
Erase the VLAN database on EastSW and reload the switch.
Reset the configuration revision number on EastSW to zero.
Reload EastSW.
22. Which additional functionality is available on an interface when the
encapsulation is changed from HDLC to PPP?
flow control
error control
authentication
synchronous communication
23. 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.
24. 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
26.
Refer to the exhibit. Users who are connected to R1 report that they are unable to
establish connectivity to the users who are connected to router R2. A network
administrator tests the link with the debug ppp authentication command. Based on
the output shown, which statement correctly defines the problem on the link?
R1 uses PAP as a method of authentication, and R2 uses CHAP.
R1 uses CHAP as a method of authentication, and R2 uses PAP.
R1 uses an incorrect user name or password for CHAP authentication.
R2 uses an incorrect user name or password for PAP authentication.
27.
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.
28. What is the result when the command permit tcp 192.168.4.0 0.0.3.255
any eq telnet is entered in an access control list and applied on the inbound
interface of a router?
All traffic that originates from 192.168.4.0/24 is permitted.
All TCP traffic is permitted, and all other traffic is denied.
All Telnet traffic from the 192.168.0.0/16 network is permitted.
All traffic from the 192.168.4.0/22 network is permitted on TCP port 23.
29.
Refer to the exhibit. Router RT is not receiving routing updates from router RTA.
What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
30. 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.
31. Which encapsulation protocol when deployed on a Cisco router over a serial
interface is only compatible with another Cisco router?
PPP
SLIP
HDLC
Frame Relay
32.
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
33. A technician has been asked to run Cisco SDM one-step lockdown on the router
of a customer. What will be the result 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.
34. What translation method will allow a server to always keep the same public
address?
static NAT
dynamic NAT
static NAT with overload
dynamic NAT with overload
35. 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.
36. A light manufacturing company wishes to replace its DSL service with a non-
line-of-sight broadband wireless solution that offers comparable speeds. Which
solution should the customer choose?
Wi-Fi
satellite
WiMAX
Metro Ethernet
37.
Refer to the exhibit. Company ABC expanded its business and recently opened a
new branch office in another country. IPv6 addresses have been used for the
company network. The data servers Server1 and Server2 run applications which
require end-to-end functionality, with unmodified packets that are forwarded from
the source to the destination. The edge routers R1 and R2 support dual stack
configuration. What solution should be deployed at the edge of the company
network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address
and dynamic NAT for the rest of the inside IPv6 addresses
38.
Refer to the exhibit. Which statement correctly describes how Router1 processes an
FTP request packet that enters interface S0/0/0, and is destined for an FTP server
at IP address 172.16.1.5? OU 192.168.1.5?
The router matches the incoming packet to the statement that is created
byaccess-list 201 permit ip any any command and allows the packet into the
router.
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 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 172.16.1.0 0.0.0.255 command, ignores the
remaining statements in ACL 101, and allows the packet into the router.
OOOOOOOOOOOOOOOOOUUUUUUUU
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.
The router matches the incoming packet to the statement that was created by
the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, 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.
39. Which characteristic of VPN technology prevents the contents of data
communications from being read by unauthorized parties?
QoS
latency
reliability
confidentiality
40. 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
41.
Refer to the exhibit. A technician is teaching a trainee to interpret the results of
various Frame Relay troubleshooting commands. What conclusion can be drawn
from the output that is shown?
Neighboring routers should use DLCI 177 to reach the Branch router.
DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.
The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.
To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified
by DLCI 177.
42. Where does a service provider assume responsibility from a customer for a
WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
43. A company has its headquarters office in Dallas and five branch offices located
in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for
communications among offices in six sites. In planning the WAN links, the network
designer is given two requirements: (1) minimize cost and (2) provide a certain
level of WAN link reliability with redundant links. Which topology should the
network designer recommend?
star
full mesh
hierarchical
partial mesh
44.
Refer to the exhibit. A system administrator must provide connectivity to a foreign
network for ten hosts in a small remote office. The commands that are listed in the
exhibit were entered into the router that connects the foreign network. The users in
the remote office report occasional failure to connect to resources in the foreign
network. What is the likely problem?
The source addresses are not correctly designated.
The translated address pool is not correctly sized.
The access-list command is referencing the wrong addresses.
The wrong interface is designated as the source for translations.
45. An issue of response time has recently arisen on an application server. The new
release of a software package has also been installed 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.
46. Which method is most effective in protecting the routing information that is
propagated between routers on the network?
Disable IP source routing.
Configure passive interfaces.
Configure routing protocol authentication.
Secure administrative lines with Secure Shell.
47.
Refer to the exhibit. What happens if the network administrator issues the
commands shown when an ACL called Managers already exists on the router?
The commands overwrite the existing Managers ACL.
The commands are added at the end of the existing Managers ACL.
The network administrator receives an error stating that the ACL already exists.
The commands will create a duplicate Managers ACL containing only the new
commands being entered.
48. Which statement accurately describes a role that is played in establishing a
WAN connection?
ISDN and ATM are circuit-switched technologies that are used to establish on
demand a path through the service provider network.
Data link layer protocols like PPP and HDLC define how data is encapsulated for
transmission across a WAN link.
A packet-switching network establishes a dedicated circuit between nodes for the
duration of the communication session.
Frame Relay switches are normally considered to be customer premises equipment
(CPE) and are maintained by local administrators.
49. What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
50. When NAT is in use, what is used to determine the addresses that can be
translated on a Cisco router?
access control list
routing protocol
inbound interface
ARP cache
51.
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.
52.
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.
53. A network administrator can ping the Perth router, but gets a ‘Password
Required but None Set’ message when trying to connect remotely via Telnet. Which
command sequence must be applied to the Perth router to allow remote access?
Router(config)# line console 0
Router(config-line)# login
Router(config-line)# password cisco
Router(config)# line vty 0 4
Router(config-line)# login
Router(config-line)# password cisco
Router(config)# line virtual terminal
Router(config-line)# enable login
Router(config-line)# password cisco
Router(config)# line vty 0 4
Router(config-line)# enable secret
Router(config-line)# password cisco
Router(config)# enable secret cisco
Router(config)# enable cisco
54. A router does not load its configuration after a power failure. After running the
show startup-configuration command, the administrator finds that the original
configuration is intact. What is the cause of this problem?
The configuration register is set for 0×2100.
The configuration register is set for 0×2101.
The configuration register is set for 0×2102.
The configuration register is set for 0×2142.
Boot system commands are not configured.
Flash memory is empty causing the router to bypass the configuration in NVRAM
19. 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.
18. 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.
12. 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
9. Refer to the exhibit. The network administrator creates a standard access control list on Router1 to
prohibit traffic from the 172.16.1.0/24 network from reaching the 172.16.2.0/24 network while still
permitting Internet access for all networks. On which router interface and in which direction should it be
applied?
interface Fa0/0, inbound
interface Fa0/0, outbound
interface Fa0/1, inbound
*interface Fa0/1, outbound
14. What are two major characteristics of a worm? (Choose two.)
**exploits known vulnerabilities
attaches itself to another program
executed by a predefined time or event
masquerades as an accepted program
**copies itself to the host and selects new targets
14. What will be the result of the enable secret command when added at the global
configuration mode on the router?
It will use MD5 encryption to protect the privileged EXEC level access.
It will use type 7 encryption and will encrypt only the privileged EXEC level passwords.
It will use type 7 encryption to prevent all passwords that are displayed on the screen from
being readable.
It will use MD5 encryption to protect the passwords that are only used in the PAP and CHAP
authentication process.
23. While configuring a router using RIPng and dual-stack technology with IPv4 and IPv6, the
administrator receives an error messinputting IPv4 routes. What could cause the error
message?
IPv4 is not compatible with RIPng
RIPng is incompatible with dual-stack technology.
The router interfaces have been configured with incorrect addresses
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in
favor of the newer technol
23. Refer to the exhibit. Which statement is true about the WAN switch device?
It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25
over the WAN. ??
It provides internetworking and WAN access interface ports that are used to connect to the
service provider network.
It provides termination for the digital signal and ensures connection integrity through error
correction and line monitoring
It converts the digital signals produced by a computer into voice frequencies that can be
transmitted over the analog linepublic telephone network.
23. Refer to the exhibit. Router1 and Router2 each support separate areas of a data center,
and are connected via a crossover cResources attached to Router1 are unable to connect to
resources attached to Router2. What is the likely cause?
The crossover cable is faulty.
The IP addressing is incorrect.
There is a Layer 2 problem with the router connection.
The upper layers are experiencing an unspecified problem.One or both of the Ethernet
interfaces are not working correctl
90. Refer to the exhibit. From the output of the commands that are shown, at which layer of
the OSI model is a fault indicated?
transport
network
data link
physical
12. Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to
the TFTP server. He receives themessage that is shown in the exhibit, and cannot ping the TFTP
server from R1. What action can help to isolate this problem
Check that R1 has a route to the 10.10.10.0 network.
Verify that the TFTP server software supports binary file transfers.
Make sure that the TFTP server has 192.168.1.1 as its default gateway.
Ensure that the laptop has an IP address in the 192.168.1.0/24 network.
12. When a Frame Relay connection is being configured, under which condition should the
command frame-relay map be used
when the remote router is a non-Cisco router
when the local router is configured with subinterfaces
when globally significant rather than locally significant DLCIs are being used
when the local router and the remote router are using different LMI protocols
23. Refer to the exhibit. Which DHCP requests will R1 answer?all DHCP requests that R1
receivesrequests that are broadcast to 10.0.1.255DNS
requests with a destination of 10.0.1.3
requests that are received on the FastEthernet 0/0 interface
requests that come from any networks that are not listed as excluded
23. Which protocol is implicitly denied at the end of an IPv4 access list?
IP
TCP
UDP
http
34. Which statement is true about wildcard masks?
Inverting the subnet mask will always create the wildcard mask.
A wildcard mask identifies a network or subnet bit by using a "1".
The same function is performed by both a wildcard mask and a subnet mask.
When a "0" is encountered in a wildcard mask, the IP address bit must be checked
23. Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat
command?
The 172.16.76.3 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.
34. Which two items are LCP options that can be configured for PPP? (Choose two.)
EAP
CHAP
IPCP
CDPCP
multilink
23. Which two functions are provided by the Local Management Interface (LMI) that is used in
Frame Relay networks? (Choose t
flow control
error notification
congestion notification
the mapping of DLCIs to network addresses
the sending of keepalive packets to verify operation of the PVC