[单项选择]Which line from the output of the show ip interface command indicates a layer 1 problem?（）
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down

[单项选择]Which line from the output of the show ip interface command indicates a layer 1 problem?（）
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down

[多项选择]What can be determined from the line of show ip route output shown in the exhibit?（）
A. The next routing update can be expected in 35 seconds.
B. The IP address 10.10.10.6 is configured on S0/1.
C. The IP address 10.10.10.8 is configured on S0/1.
D. This route is using the default administrative distance.
E. The 10.10.10.8 network is two hops away from this router.

[单项选择] Examine the following excerpt from the show ip ospf database asbr -summary command on router R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output?（） LS Type: Summary Links (AS Boundary Router) Link State ID: 9.9.9.9 (AS Boundary Router address) Advertising Router: 3.3.3.3 LS Seq Number: 8000000D Checksum: 0xE43A Length: 28 Network Mask: /0 TOS: 0 Metric: 100
A. The output describes the contents of a Type 5 LSA
B. 3.3.3.3 identifies a ro uter as being the router performing redistribution
C. R1's metric for its best route to reach the router with RID 9.9.9.9 is 100
D. The router with RID 3.3.3.3's metric for its best route to reach the router with RID 9.9.9.9 is 100

[单项选择] Examine the following excerpt from the show ip eigrp topology 10.2.2.0/24 command on router R1.Which answer can be verified as definitely true based on this output?（） External data: Originating router is 10.1.1.1 AS number of route is 1 External protocol is OSPF, external metric is 64 Administrator tag is 0 (0x00000000)
A. R1 is the router that redistributed the route
B. R1's metric to reach subnet 10.2.2.0/24 is 64
C. The route was redistributed on a router that has a router ospf 1 command configured
D. R1 is redistributing a route to prefix 1 0.2.2.0/24 into OSPF

[多项选择] The following output was taken from the show ip bgp command on Router R2. In this case, which of the following commands are most likely to already be configured on R2?（） BGP router identifier 11.11.11.11, local AS number 11 ... Neighbor V AS Ms gRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 1.1.1.1 4 1 87 87 0 0 0 00:00:06 Idle (Admin) 2.2.2.2 4 3 173 183 41 0 0 00:58:47
A. router bgp 11
B. neighbor 1.1.1.1 remote- as 11
C. neighbor 2.2.2.2 prefix - limit 1
D. neighbor 1.1.1.1 shutdown

[单项选择]Which keyword is used with the show ip bgp neighbors [keyword] command to display all routes that are received and accepted from a neighbor?（）
A. paths
B. accepted-routes
C. advertised-routes
D. routes

[单项选择] The following output, taken from a show ip bgp command on Router R1, lists two neighbors. In what BGP neighbor state is neighbor 1.1.1.1?（） Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 1.1.1.1 4 1 60 61 26 0 0 00:45:01 0 2.2.2.2 4 3 153 159 26 0 0 00:38:13 1
A. Idle
B. Opensent
C. Active
D. Established

[单项选择]Which statement about the ip classless router command is true?（）
A. The ip classless command is enabled by default in recent versions of IOS.
B. The ip classless command should only be enabled when static routing is being used instead of a routing protocol.
C. The ip classless command should be enabled by the network administrator whenever RIPv1 or IGRP is being used.
D. The ip classless command should be enabled by the network administrator whenever OSPF, RIPv2, or EIGRP is being used.

[单项选择]Which of the following IP addresses would a technician ping to verify the integrity of the local TCP/IP stack?（）
A. 10.0.0.1
B. 127.0.0.1
C. 169.254.0.1
D. 192.168.0.1

[单项选择]Which of the following IP addresses would MOST likely be the default gateway for 10.1.16.184?（）
A. 10.1.16.1
B. 10.1.16.254
C. 10.10.144.1
D. 105.24.133.1

[多项选择]Which of the following IP addresses for the network 27.35.16.32/28 can be assigned to hosts?（）
A. 27.35.16.32
B. 27.35.16.33
C. 27.35.16.48
D. 27.35.16.47
E. 27.35.16.45
F. 27.35.16.44

[多项选择]Which of the following IP addresses can be assigned to the host devices? （）
A. 205.7.8.32/27
B. 191.168.10.2/23
C. 127.0.0.1
D. 224.0.0.10
E. 203.123.45.47/28
F. 10.10.0.0/13

[多项选择]Which of the following IP addresses fall into the CIDR block of 115.（）
A. 115.64.8.32
B. 115.64.7.64
C. 115.64.6.255
D. 115.64.3.255
E. 115.64.5.128
F. 115.64.12.128

[单项选择]Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）
A. IP telephone
B. Voice gateway
C. Private branch exchange (PBX)
D. Advanced audio conferencing software