cisco 22- 41

1.

1 point

21. Refer to the exhibit. R1 is connected to the Internet through its serial 0/0/0 interface. Hosts on the 192.168.100.0/24 LAN on R1 cannot communicate with hosts on the Internet. What two NAT configuration issues might explain this failure? (Choose two.)

The ip nat pool command has not been applied correctly.

The inside interface has not been defined on R1.

The access list does not include the group of IP addresses that are supported by the inside network

The ip address that is assigned to the serial 0/0/0 interface is incorrect

The outside interface has not been defined on R1.

2.

1 point

22. Refer to the exhibit. R1 and R2 are connected via serial interfaces. Both interfaces show that there is Layer 2 connectivity between them. The administrator verifies that CDP is operational; however, pings between the two interfaces are unsuccessful. What is the cause of this connectivity problem?

no set loopback

incorrect subnet mask on R2

incompatible bandwidth

incorrect IP address on R1

incompatible encapsulation

3.

1 point

23. Which two statements describe how the information contained in a BPDU is used by a switch? (Choose two.)

to set the duplex mode of a redundant link

to activate looped paths throughout the network

to determine the root bridge

to prevent loops by sharing routing tables between connected switches

to determine which ports are placed in forwarding mode

4.

1 point

24. When MD5 authentication is used for OSPF routing protocol authentication, what two facts are known about the key? (Choose two.)

The key passes between routers in plain text.

The key is used to help generate an encrypted number for authentication.

The key passes between routers in encrypted form.

The key is never transmitted.

The key can be captured by using a packet sniffer.

5.

1 point

25. Refer to the exhibit. If router RTA fails, which statement is true?

Hosts A and B can reach each other, but cannot reach hosts C and D or the server.

No host can reach any other host.

Hosts A, B, C, and D can reach each other, but cannot reach the server

All hosts can reach each other.

6.

1 point

26. Which command should a network administrator issue to disable default summarization in an EIGRP network?

Router(config-router)# null 0 route

Router(config-if)# no ip summary-address

Router(config-router)# no ip summary-address

Router(config-if)# no auto-summary

Router(config-router)# no auto-summary

7.

1 point

27. Refer to the exhibit. Users on the 172.30.20.0/24 network are unable to access any of the servers located on the 192.168.0.0/23 network. Given the network topology and OSPF configuration, what two problems exist in this network? (Choose two.)

There is a routing loop occurring between all three routers.

There is a network statement missing.

Network 172.30.20.0 has an incorrect wildcard mask.

The OSPF Area configuration is incorrect.

/23 is an invalid subnet mask for the 192.168.0.0 network.

8.

1 point

28. Refer to the exhibit. Which IP addressing scheme would be correct for the network?

H1-172.18.0.10/16 H2-172.18.0.11/16 H3-172.18.0.12/16

H1-172.18.0.10/16 H2-172.19.0.10/16 H3-172.18.0.11/16

H1-172.18.0.10/16 H2-172.18.0.11/16 H3-172.19.0.11/16

H1-172.18.0.10/16 H2-172.19.0.11/16 H3-172.19.0.11/16

9.

1 point

29. 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

10.

1 point

30. After comparing a previous baseline to current network statistics, the network engineer has discovered a significant increase in unwarranted traffic to the extranet. Which two steps simplify administration and control the unwanted traffic? (Choose two.)

define an ACL at the distribution layer to isolate packets

add an ACL at the router in the enterprise edge to block the traffic

deploy a Layer 3 switch to contain broadcasts

connect remote locations directly to the intranet

configure all hosts with the same default gateway to eliminate unnecessary broadcasts

deploy one core ISP router to reduce the delay in path determination

11.

1 point

31. Which statement is accurate about the CIR in Frame Relay?

It is important to purchase a CIR that matches the highest bandwidth requirements of the enterprise.

The CIR can be no lower than the port speed of the local loop.

The CIR defines the contracted maximum rate available from the service provider on the Frame Relay circuit

It is possible to burst over the CIR if bandwidth is available.

12.

1 point

32. A sales representative is using a wireless connection to make a VoIP call. Which protocol will be used to transport the voice packets?

TCP

UDP

PPP

HDLC

13.

1 point

33. A network administrator wants to deny responses to ping requests. Which ACL statement denies ping responses while not affecting other traffic?

access-list 123 deny tcp any any eq 80

access-list 123 deny tcp any any eq 20

access-list 123 deny tcp any any eq 21

access-list 123 deny icmp any any echo-reply

access-list 101 deny tcp any any established

14.

1 point

34. Why would a network administrator want to limit the size of failure domains when designing a network?

to eliminate the effects of Ethernet collisions

to reduce the impact of a key device or service failure

to reduce the impact of Internet congestion on critical traffic

to eliminate the need to block broadcast packets at the edge of the local network

15.

1 point

35. What are two benefits of implementing VLANs in an enterprise network? (Choose two.)

eliminates the need for a Layer 3 device

provides segmentation of broadcast domains

allows for the propagation of broadcasts from one local network to another

allows for the logical grouping of devices despite physical location

prevents issues such as broadcast storms by ensuring a loop free environment

16.

1 point

36. Which three IP addresses are valid host addresses in the 10.200.0.0/20 network? (Choose three.)

10.200.11.69

10.200.16.1

10.200.0.255

10.201.0.55

10.200.15.240

10.200.300.29

17.

1 point

37. Refer to the exhibit. Assuming that the RIPv1 routing protocol is enabled and that all networks are being advertised, which statement is true?

All packets from H1 that are destined to H2 will arrive at H2.

None of the packets from H1 that are destined to H2 will arrive at H2

Approximately half the traffic from H1 that is destined to H2 will reach R3.

Some of the packets from H1 that are destined to H2 will be sent to the switch that is connected to network 192.168.3.64/26.

18.

1 point

38. Refer to the exhibit. Which route will appear in the routing table?

R 10.10.4.0/24 [120/1] via 10.10.10.1, 00:00:12, FastEthernet0/1

R 10.10.4.0/24 [120/1] via 10.10.20.1, 00:00:12, FastEthernet0/0

R 10.10.4.0/24 [120/2] via 10.10.20.1, 00:00:12, FastEthernet0/0

R 10.10.4.0/24 [120/3] via 10.10.30.1, 00:00:12, FastEthernet1/0

R 10.10.4.0/24 [120/1] via 10.10.30.1, 00:00:12, FastEthernet1/0

19.

1 point

39. Refer to the exhibit. Server7 has been added to the server farm network. The hosts can ping Servers 2 and 3 and Server2 and Server3 can ping each other. Server7 cannot ping the other servers connected to the switch. What is the cause of this problem?

The Fa0/1 port on the switch should be in access mode.

The switch IP address is not on the same subnet as Server7.

The switch port used for Server7 is not in the same VLAN as Server2 and Server3.

The Fa0/0 interface of the router has not been configured for subinterfaces to support inter-VLAN routing.

20.

1 point

40. What will be the two wildcard masks required in an extended access list statement that blocks traffic to host 192.168.5.45 from the 172.16.240.0/27 network? (Choose two.)

0.0.0.0

255.255.240.0

255.255.255.255

0.0.31.255

255.255.255.240

0.0.0.31

21.

1 point

41. If a modem is being used to connect to an ISP, which WAN connection type is being used?

leased line

cell switched

circuit switched

packet switched

22.

1 point

42. Refer to the exhibit. A network administrator must manually summarize all IP addresses on the POP router for the ISP. Which one is the correct summary address?

192.168.0.0/22

192.168.0.0/23

192.168.0.0/24

192.168.0.0/25

23.

1 point

43. 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