CCNA640-802 V13题库试题分析16(艾迪飞吴老师讲解)

pigful

CCNA640-802 V13题库试题分析15(艾迪飞吴老师讲解)
1．A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?

  

1.jpg (38.11 KB)

2007-11-29 10:48
A. The OSPF area is not configured properly.

B. The priority on R1 should be set higher.

C. The cost on R1 should be set higher.

D. The hello and dead timers are not configured properly.

E. A backup designated router needs to be added to the network.

F. The OSPF process ID numbers must match.

Answer: D

解释一下：OSPF邻居建立过程中有几个参数是需要严格匹配的：Hello time和dead time，Area id, MTU,特殊区域标识符。然后比较图中的R1和R2的内容可以看到他们的Hello time 和dead time是不同的，因此他们的邻居关系是无法建立的。



以下内容需要回复才能看到



2．This graphic shows the results of an attempt to open a Telnet connection to router ACCESS1 from router Remote27. Which of the following command sequences will correct this problem?

  

2.jpg (23.85 KB)

2007-11-29 10:48

A. ACCESS1(config)# line console 0

ACCESS1(config-line)# password cisco

B. Remote27(config)# line console 0

Remote27(config-line)# login

Remote27(config-line)# password cisco

C. ACCESS1(config)# line vty 0 4

ACCESS1(config-line)# login

ACCESS1(config-line)# password cisco

D. Remote27(config)# line vty 0 4

Remote27(config-line)# login

Remote27(config-line)# password cisco

E. ACCESS1(config)# enable password cisco

F. Remote27(config)# enable password cisco

Answer: C

解释一下：Telnet默认情况下是要求VTP线路下有设置密码的，因为在VTP线路下默认有login的设置，他表示的是开启认证，因此如果在VTP线路下没有设置密码，他就不允许你使用这条VTP线路进行访问。所以我们需要在 VTP线路下设置一个密码，使用命令password就可以了。





3．Which statement accurately describes a benefit provided by VTP?

A. VTP allows routing between VLANs.

B. VTP allows a single port to carry information to more than one VLAN.

C. VTP allows physically redundant links while preventing switching loops.

D. VTP allows switches to share VLAN configuration information.

Answer: D

解释一下：VTP允许交换机间同步VLAN的信息，共享VLAN 的配置信息。





4．Refer to the exhibit. Subnet 10.1.3.0/24 is unknown to router RTB. Which router command will prevent router RTB from dropping a packet destined for the 10.1.3.0/24 network if a default route is configured?

  

4.jpg (21.58 KB)

2007-11-29 10:48

A. ip classless

B. ip default-network

C. network 10.1.1.0

D. network 10.1.1.0 0.0.0.255 area 0

Answer: A

解释一下：缺省路由也配置了，为了安全起见，我们还是把无类路由打开。



5．Refer to the exhibit. Two buildings on the San Jose campus of a small company must be connected to use Ethernet with a bandwidth of at least 100 Mbps. The company is concerned about possible problems from voltage potential differences between the two buildings. Which media type should be used for the connection?

  

5.jpg (11.88 KB)

2007-11-29 10:48



A. UTP cable

B. STP cable

C. coaxial cable

D. fiber optic cable

Answer: D

解释一下：电压不同，而且两个公司的距离不是很远，当然可以考虑光纤了。

wq82715

<P>肯定顶了!</P>
<P>&nbsp;</P>

wyqbyg

<P>thanks!</P>

翁旭灿

考前冲刺必看

翁旭灿

考前冲刺 必看

seueda

hao dong dong<br>

maqiuming66

asdsasdaf

maqiuming66

asdasdfsdfasdf

米shuai

学习学习学习<br>

拔腿就跑

我而言软硬体

hbcauc

ddddddddd

kityhawk

先回复，后学习