ccna 3 assessment system practice final

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Take Assessment - DRSEnt Practice Final - CCNA Discovery: Introducing Routing and Switching in the Enterprise (Version 4.0)

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1

Refer to the exhibit. Host H2 and host H3 are able to ping the default gateway but cannot ping host H1. Host H1 cannot ping either the default gateway, host H2, or host H3. The network technician issues the show interfacescommand on switch S1 and notes that all unused switch ports are administratively down and ports Fa0/1, Fa0/3, and Fa0/4 are up with their line protocol up. However, S1 port Fa0/2 is shown as down with the line protocol down error (disabled). What is a possible cause for the inability of H1 to communicate with the network?

Routing is misconfigured on router R1.

The default gateway on H1 was misconfigured.

Host H1 is on a different subnet than hosts H2 and H3.

Port security on switch S1 port Fa0/2 is misconfigured.

The administrative VLAN on switch S1 does not have an IP address assigned.

http://assessment.netacad.net/virtuoso/delivery/pub-doc/exam.shtml






2Which protocol is a classful routing protocol?BGP

EIGRP

OPSF

RIPv1

RIPv2

3

Refer to the exhibit. What information can be determined from the exhibited command?The command specifies how traffic will be routed to the 10.1.1.2 host.

It will set the default route in the routing table.

This route has an administrative distance of 1.If a dynamic routing protocol with default parameters is configured on this router, this route will not be installed in the routing table.

4

Refer to the exhibit. The network administrator wants to restrict the Production network from accessing the HR network. All other traffic will have access to all networks. Which combination of interface and direction should the administrator use to apply the ACL?

Fa0/1, out

Fa1/0, out

Fa0/1, in

Fa1/0, in

5





Refer to the exhibit. R2 receives the dynamic update R 192.168.2.0/24 [120/2] via 10.1.1.2, 00:00:15, Serial0/0/0.

What will happen to this new routing update?The update information will be added to the existing routing table.

The update information will replace the existing routing table entry.

The routing protocol will not replace the existing route with this new routing update.The existing routing table entry will be purged from the routing table and all routers will attempt to converge.

6

Refer to the exhibit. The routing protocols are configured with their default settings. Which two statements are true about the path or paths that R1 will choose to the 192.168.2.0/24 network? (Choose two.)

If only EIGRP is configured on the network, only the path R1->R3 will be installed in the routing table.If OSPF and RIPv2 are both configured on the network, only OSPF paths will be installed in the routing table.If EIGRP and OSPF are both configured on the network, only EIGRP paths will be installed in the routing table.If EIGRP and RIPv2 are both configured on the network, only RIPv2 paths will be installed in the routing table.


If RIPv2 is the routing protocol, the two equal cost paths (R1-R2-R3 and R1-R4-R3) will be installed in the routing table.

7

Refer to the exhibit. A network administrator is configuring an ACL. Which statement is true about the effect of the ACL?

A host with the IP address 192.168.10.22 is allowed to access the FTP server that has the IP address 172.17.2.240.A host with the IP address 192.168.10.42 is allowed to access the FTP server that has the IP address 172.17.2.241.A host with the IP address 192.168.10.12 is allowed to access the web server that has the IP address 172.17.2.242.A host with the IP address 192.168.10.52 is allowed to have SSH access to the server that has the IP address 172.17.2.240.

8What are two features of a standard IP ACL? (Choose two.)It permits or denies access based on the entire protocol.

It filters the packet based on the source IP address only.

It uses identification numbers between 100 and 199.

It can filter traffic based on port number.

It can only filter inbound traffic on an interface.

9




Refer to the exhibit. What two pieces of information can be gathered from the output of this command? (Choose two.)

172.16.16.0/20 is a manually summarized route.

All subnets are being advertised because default summarization was disabled.

The output verifies that EIGRP is advertising only the networks in the same AS.

The 172.16.1.0/24 network is directly attached to the router that produced this output.

The Null0 interface indicates that this is not an actual path, but a summary for advertising purposes.

10A company requests the service of an ISP for Internet access. Which device is needed to connect the company router to the ISP by a T1 or E1?

CSU/DSU

DMZ router

DMZ switch

web server

11



Refer to the exhibit. Which two statements are correct about the VTP configuration on S2? (Choose two.)The default mode is used.

VLANs have been created on S2.

The default domain name is used.

A new client mode switch in the CISCO domain would receive updates from S2.

S2 would not update a new client mode switch whose VTP revision number is 3.

12

Refer to the exhibit. A network administrator has configured EIGRP authentication between routers R1 and R2. After the routing tables are reviewed, it is noted that neither router is receiving EIGRP updates. What is a possible cause for this failure?

The same key chain name must be used on each router.

The same number of key strings must be used on each router.

The key string should be used in interface mode instead of the key chain.

The same autonomous system numbers must be used in the interface configurations of each router.


The authentication configuration is correct, issue the show ip eigrp neighbors command to troubleshoot the issue.

13 What are three valid port states when using RSTP? (Choose three.)blocking

disabled

discarding

forwarding

learning

listening

14

Refer to the exhibit. An administrator is adding a new router to the network. The IP address 192.168.13.6/30 has been assigned to the connecting serial interface on R2. What IP address must the administrator assign to the serial interface of the new router?

192.168.13.4/30

192.168.13.5/30

192.168.13.7/30

192.168.13.58/30

192.168.13.61/27

192.168.13.63/27

15 What is one major difference between RIPv1 and RIPv2?RIPv2 has a higher maximum hop count than RIPv1.

RIPv1 utilizes broadcasts. RIPv2 utilizes multicasts.

RIPv1 supports discontiguous networks. RIPv2 does not.

RIPv1 updates are exchanged more often than RIPv2 updates.





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16

Refer to the exhibit. Both routers are configured to use the EIGRP routing protocol. The network administrator wants to enable manual summarization by issuing the displayed command.

How should the administrator issue this command?after issuing the router eigrp 50 command











in interface mode on the Fa0/0 interface of R2

in interface mode on the S0/0/0 interface of R2

in global configuration mode

17

Refer to the exhibit. Which VTP function will this switch perform?It will create, change and share local VLAN information with other switches in the XYZ domain.

It will forward to other switches the VLANs that are created in Switch1.

It will back up the VTP database for domain XYZ.

It will forward VTP configuration information for domain XYZ.

18 What are two characteristics of a static route? (Choose two.)A static route can be used by border routers to provide secure and stable paths to the ISP.

By default, a static route is more secure than dynamic routing.

A static route automatically adapts to topology changes.

A static route can only be used with classful addressing schemes.

A static route creates processing overhead in a large network.

19




Refer to the exhibit. A network technician is attempting to manage a switch that has an IP address that has been assigned to the default management VLAN. What is a possible reason that the Telnet session fails from a PC connected to a port that is assigned to VLAN 10?

The incorrect encapsulation command is used.

There is no encapsulation dot1q 1 configuration on the FastEthernet 0/0 port.

The default gateway address of the switch must be in the same network as the PC.

There is no subinterface associated with the default management VLAN on the switch.

20 A journalist is using a wireless connection to transmit a video clip. Which is the best protocol to use to transport the video packets?

TCP

UDP

PPP

HDLC

21What factor is important to consider when configuring manual summarization with EIGRP?EIGRP authentication must be enabled.

Networks that are being summarized must be contiguous.

Networks that are being summarized must use the same subnet mask.

Summarization must be configured the same on all interfaces.

22




Refer to the exhibit. What is the administrative distance for OSPF routes?0

1

65

110

120

128

23


Refer to the exhibit. What two conclusions can be drawn from the displayed output? (Choose two.)A packet with a destination IP address of 172.20.1.14 will exit the router via the Serial 0/1/0 interface.

The default administrative distance for EIGRP has been changed.

Network 172.20.1.4 can be reached through two possible routes of equal cost.

A packet with a destination IP address of 172.16.1.5 will be dropped.

The router connected to Serial 0/1/1 is advertising four separate routes through EIGRP to this router.

24 A company is using a Class B IP addressing scheme and expects to need as many as 150 networks. What is the correct subnet mask to use with the network configuration?

255.255.0.0

255.255.240.0

255.255.254.0

255.255.255.0

255.255.255.128

255.255.255.192

25



Refer to the exhibit. The network administrator has configured R1, R2, and R3 to use RIPv2, and the network is fully converged. The hosts on the internal network are able to access R2, but they are unable to access the Internet.

How can the administrator solve this problem?Configure a default route on R3 and propagate it via the use of RIPv2 to all routers.

Configure a default route on R2 and propagate it via RIPv2 to routers R1 and R3.

Configure a default route on the ISP, and it will be automatically propagated to all routers.

Configure a default route on R1, and it will be automatically propagated to all routers.

26 What can be done to reduce the impact of a failure domain?Create a single local network on a central switch.

Move wired users to a more reliable wireless network.

Add redundant devices to key positions within the network.

Add more VLANs to each switch and assign fewer users per VLAN.

27What is a feature of PAP authentication?It uses a three-way handshake with encryption.

It sends the username/password pair across the link in clear text.

It provides protection against playback attack through a variable challenge value.

It designates the called device to control the frequency and timing of the authentication.



28

Refer to the exhibit. If the router-id command has not been applied on R1, what is the router ID of R1?10.20.30.40

10.254.254.1

172.20.1.33

192.168.20.1

192.168.20.9

29An organization is planning to expand by adding five new branches. After the expansion, it will require secured, full-time, and simultaneous connectivity for its new branch offices with the central office. There is only one port available on the central office router. Which WAN technology can be used in this situation?

PPP

ISDN

Frame Relay

analog dialup

30 Why should default route redistribution be implemented in a multirouter RIP network?allows for greater scalability in networks with multiple edge routers

scales better than configuring a default route on each router

provides the same gateway of last resort for every router in the network

allows for greater flexibility in networks with multiple vendor ISP connections










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31

Refer to the exhibit. What is the purpose of assigning the IP address 192.168.30.1 to an access layer switch?to assign a default gateway to the hosts that are connected to the switch

to allow hosts on the same LAN to connect to each other

to allow remote management of the switch

to allow inter-VLAN communication

32Which two statements are correct about Cisco HDLC encapsulation? (Choose two.)It defines a Layer 3 framing structure.

It supports multiple network layer protocols.

It supports the callback option on serial links.

It is the default encapsulation type on Cisco router serial links.

It uses a layered architecture to encapsulate multiprotocol datagrams.








33 Which two wildcard masks are required in an extended access list statement that blocks the traffic from network 192.168.20.0/26 to network 172.16.32.0/28? (Choose two.)

0.0.63.255

0.0.0.63

0.0.0.31

0.0.0.15

0.0.0.0

34

Refer to the exhibit. A network administrator is configuring an ACL on router R1. The purpose of the ACL is to ensure that traffic from the Internet will only be allowed if it is in response to a request that is initiated from the internal network. However, after the ACL has been applied, internal users report that they cannot visit external web sites. What can be done to solve this problem?

Remove the deny any any statement.

Apply the ACL to the serial 0/0/0 interface inbound.

Consolidate all internal computers into one network.

Add a permit tcp any any eq www statement to the top of the ACL.

35




Refer to the exhibit. All routers are configured with RIPv2. What will be the result of the exhibited configuration?

All static routes on R3 will be propagated to R1 and R2.

The default route on R3 will be propagated to R2 but not R1.

Only the default route on R3 will be propagated to R1 and R2.

No static routes will be propagated until a no auto-summary command is entered on R3.

36

Refer to the exhibit. Which commands would be used to configure OSPF on router R1?R1(config)# router ospf 1R1(config-router)# network 172.16.1.16 255.255.255.248 area 0R1(config-router)# network 192.168.88.0 255.255.255.0 area 0


R1(config-router)# network 192.168.88.8 255.255.255.0 area 0R1(config)# router ospf 1R1(config-router)# network 172.16.1.16 0.0.0.15 area 0R1(config-router)# network 192.168.88.0 0.0.0.3 area 0R1(config-router)# network 192.168.88.8 0.0.0.3 area 0R1(config)# router ospf 1R1(config-router)# network 172.16.1.0 0.0.0.7 area 0R1(config-router)# network 192.168.88.0 0.0.0.3 area 0R1(config-router)# network 192.168.88.8 0.0.0.3 area 0R1(config)# router ospf 1R1(config-router)# network 172.16.1.16 0.0.0.3 area 0R1(config-router)# network 192.168.88.4 0.0.0.3 area 0R1(config-router)# network 192.168.88.8 0.0.0.3 area 0R1(config)# router ospf 1R1(config-router)# network 10.10.10.0 0.0.0.255 area 0R1(config-router)# network 172.16.1.16 0.0.0.15 area 0R1(config-router)# network 172.16.1.32 0.0.0.7 area 0R1(config-router)# network 192.168.88.0 0.0.0.3 area 0R1(config-router)# network 192.168.88.4 0.0.0.3 area 0R1(config-router)# network 192.168.88.8 0.0.0.3 area 0

37

Refer to the exhibit. Using the command ip route 192.168.1.0 255.255.255.0 10.1.1.2 150, the network administrator configures a new route. Which statement describes how the router will use the new route?

The new route will be ignored and will never be added to the routing table.The new route will be added to the routing table and will be the primary route to the 192.168.1.0/24 network.The previously existing dynamic route will be replaced with the new static route.The new route will be displayed in the routing table if the dynamic routing information for this route is lost.

38



Refer to the exhibit. Switch1 and Switch2 are connected to each other via a trunk link that has been tested and is working properly. Why is VTP unable to propagate VLANs from one switch to the other?

The revision number is different on both switches.

Both switches are in server mode.

The VTP domain name is different on both switches.

The VTP pruning mode is disabled.

39 A router in a fully converged EIGRP network detects that a remote route is unreachable. Which two events may occur next? (Choose two.)

EIGRP will look for a feasible successor in the routing table.

DUAL will calculate the highest cost routes to each network.

EIGRP will send a bounded update to alert neighbors about the failure.

The router will forward the complete routing table to the neighboring routers. DUAL will look for a feasible successor route in the topology table and, if one is found, it will add this route to the routing table.

40



Refer to the exhibit. Workstation H1 is unable to reach the Internet. A network technician issues a pingcommand to troubleshoot the problem. Based on the results of the commands that are shown, what could be the cause of the problem?

The default gateway on H1 is incorrect.

The IP address on H1 is incorrect.

The subnet mask on H1 is incorrect.

The Fa0/0 IP address on the router is incorrect.

The VLAN IP address on the switch is incorrect.

41


Refer to the exhibit. A network technician has added router R0 to an existing network that contains router R1. R0 is configured with EIGRP and is connected to R1 via the Fa0/0 interface of each router. After completing an analysis of the network, the technician notices that the routes to the networks that are supported by routers R0 and R1 are not being exchanged. What is a possible cause for this failure?

R0 was configured with the wrong autonomous system number.

FastEthernet interfaces on R0 are in a shutdown state.

Interface Fa0/0 on R0 is configured as a passive interface.

Interface Fa0/0 on R1 is configured as a passive interface.

42Which two statements describe the default settings of VLAN 1? (Choose two.)VLAN 1 is the native VLAN.

VLAN 1 is only created on a switch when other VLANs are configured.

VLAN 1 provides the default-gateway address for all VLANs on the switch.

Remote configuration of the switch is accomplished through VLAN 1.

VLAN 1 is disabled to reduce the security risk of intruders who might gain access to unused ports.

43

Refer to the exhibit. A network technician is unable to manage Switch1 from a PC with an IP address of 192.168.26.30. What is the possible cause of the failure?

The VLAN 1 interface configuration is not complete.

An incorrect MAC address has been assigned to Switch1.

The physical VLAN 1 interface needs to have a cable connected.

The PC and Switch1 are on different networks and a default gateway is required.

44A network administrator is configuring an edge router to support external access to several internal web servers that have private IP addresses. Which type of address resolution would be appropriate for this scenario?




PAT

static PAT

static NAT

dynamic NAT

45 Which two statements are true about untagged frames on a switch? (Choose two.)An untagged frame cannot pass through access ports.

An untagged frame cannot pass through trunk ports.

All frames that pass through trunk ports are untagged frames.

Untagged frames minimize the delays that are associated with inspection of the VLAN ID tag.

Untagged frames that are received on an 802.1Q trunk port are members of the native VLAN.



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46












Refer to the exhibit. Which access list, when applied inbound to the Fa0/0 interface of router R1, will prevent all IP traffic from the 172.16.1.16 network from entering the 172.16.1.32 network while allowing all other traffic?

access-list 101 deny tcp 172.16.1.16 0.0.0.7 172.16.1.32 0.0.0.15access-list 101 permit ip any anyaccess-list 101 deny ip 172.16.1.16 0.0.0.15 172.16.1.32 0.0.0.7access-list 101 permit ip any anyaccess-list 10 deny ip 172.16.1.0 0.0.0.255 172.16.1.32 0.0.0.255access-list 10 permit tcp any anyaccess-list 101 deny tcp 172.16.1.16 0.0.0.15 172.16.1.32 0.0.0.7access-list 101 permit ip any any

47What is the function of Inverse ARP in a Frame Relay network?It maps the IP address to the MAC address.

It maps the MAC address to the DLCI.

It maps the DLCI to the remote IP address.

It maps the local IP address to the remote MAC address.

48



Refer to the exhibit. OSPF has been configured on routers R1 and R2. The routing tables reveal that no OSPF routes are being exchanged between the two routers. What could cause this problem?

The network type must be changed on R1.

The OSPF cost is too high for updates to occur.

The process ID on R2 needs to be changed to 2.

The timer intervals on the routers do not match.

49


Refer to the exhibit. RIPv2 has been configured on all routers. Host H2 attempts to ping host H1 but only half of the echo requests result in successful echo replies. How can this problem be remedied?

Replace failed switch S1.

Place host H1 in the correct subnet.

Add an entry for the 192.168.4.0 network to the routing table on R1.

Use the no auto-summary command on all routers.

50

Refer to the exhibit. OSPF is enabled and the network has completely converged. Which two routers will be designated as DROTHER routers? (Choose two.)

R1

R2

R3

R4








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