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Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE. Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the re

题目

Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE. Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）

  • A、Privacy
  • B、Authentication
  • C、Allows using an IGP between R1 and the Enterprise
  • D、Secure communications
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相似问题和答案

第1题：

Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）

A. Privacy

B. Authentication

C. Allows using an IGP between R1 and the Enterprise

D. Secure communications


参考答案：C

第2题：

Based on the show ip route isis output on R1, which statement is true? ()

A. The i su 10.1.0.0/23 route is a suppressed route.

B. The i su 10.1. 0.0/23 route is a summary route.

C. The i su 10.1.0.0/23 route is an IS - IS external route.

D. The R1 IS - IS router is an ASBR.

E. The R1 IS - IS router is an ABR that belongs to multiple IS - IS areas.

F. The R1 IS - IS router is performing route aggregation and is suppressing the more specific 10.1.0.0/23 prefix.


参考答案：B

第3题：

以下是路由器R1的部分配置，请完成其配置，或解释配置命令含义。

!

R1 (Config) interface fastethernet0

R1(Config-if) ip address (6) (7)

R1(Config-if) (8) (开启端口)

!

R1 (Config) interface serial 0

R1(Config-if) ip address (9) (10)

!

R1 (Config) ip routing

R1 (Config) router rip (11)

R1 (Config-router) (12) (声明网络)

R1 (Config-router) (13) (声明网络)

R1 (Config-router) (14) (声明网络)

R1 (Config-router) version 2 (15)

!


正确答案：(6)192.168.1.1 (7)255.255.255.0 (8)noshutdown (9)192.168.251.1 (10)255.255.255.0 (11)进入RIP配置模式 (12)network 192.168.1.0 (13)network 192.168.251.0 (14)network 192.168.253.0 (15)设置RIP协议版本2 注：(12)、(13)、(14)答案可互换
(6)192.168.1.1 (7)255.255.255.0 (8)noshutdown (9)192.168.251.1 (10)255.255.255.0 (11)进入RIP配置模式 (12)network 192.168.1.0 (13)network 192.168.251.0 (14)network 192.168.253.0 (15)设置RIP协议版本2 注：(12)、(13)、(14)答案可互换 解析：由上图可知，路由器R1的e0的地址为192.168.1.1/24，s0的地址为192.168.251.1/24，使用network命令声明网络，分别是192.168.1.0、192.168.251.0、192.168.253.0。所以其配置应如下。
!
R1(Config)#interface fastethernet0
R1(Config-if) #ip address192.168.1.1255.255.255.0
R1(Config-if)# noshutdown (开启端口),
!
R1(Config)#interface serial 0
R1(Config-if)# ip address 192.168.251.1 255.255.255.0
!
R1(Config)# ip routing
R1 (Config) #router rip(进入RIP配置模式)
R1(Config-router)# network 192.168.1.0(声明网络 192.168.1.0/24)
R1(Config-router)# network 192.168.251.0(声明网络 192.168.251.0/24)
R1(Config-router)# network 192.168.253.0(声明网络 192.168.253. 0/24)
R1(Config-router) #version 2 (设置RIP协议版本2)

第4题：

You administer a network that uses two routers， R1 and R2， configured as an HSRP group to  provide redundancy for the gateway. Router R1 is the active router and has been configured as  follows：   R1#configure terminal   R1（config）#interface fa0/0   R1（config-if）#ip address 10.10.0.5 255.255.255.0   R1（config-if）#standby 1 priority 150   R1（config-if）#standby preempt delay minimum 50   R1（config-if）#standby 1 track interface fa0/2 15   R1（config-if）#standby 1 ip 10.10.0.20   Which of the following describes the effect the standby preempt delay minimum 50 command will  have on router R1？（）

  • A、 The HSRP priority for router R1 will increase to 200.
  • B、 Router R1 will become the standby router if the priority drops below 50.
  • C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down.  
  • D、 Router R1 will wait 50 seconds before attempting to preempt the active router.

正确答案:D

第5题：

Whichseriesofcommands willconfigurerouterR1forLAN－to－LANcommunicationwithrouterR2?Theenterprisenetworkaddressis192.1.1.0／24andtheroutingprotocolinuseisRIP.()

A.R1（config）#interfaceethernet0；R1（config-if）#ipaddress192.1.1.129255.255.255.192；R1（config-if）#noshutdown

B.R1（config）#interfaceethernet0；R1（config-if）#ipaddress192.1.1.97255.255.255.192；R1（config-if）#noshutdown

C.R1（config）#interfaceserial0；R1（config-if）#ipaddress192.1.1.4255.255.255.252；R1（config-if）#clockrate56000

D.R1（config）#interfaceserial0；R1（config-if）#ipaddress192.1.1.6255.255.255.252；R1（config-if）#noshutdown

E.R1（config）#routerrip；R1（config-router）#network192.1.1.4；R1（config-router）#network192.1.1.128

F.R1（config）#routerrip；R1（config-router）#version2；R1（config-router）#network192.1.1.0


参考答案：A, D, F

第6题：

Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task? （）

A. R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0

B. R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0

C. R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0

D. R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0

E. R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0

F. R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0


参考答案：B

第7题：

Refer to the exhibit. Router R1 is connected to networks 172.1 6.1.0 ／26 and 172.16.1.64 ／27. On the basis of the partial output in the exhibit, which statement is true? ()

A. Router R1 will deny the 172.16.1.0/26 route while permitting the 172.16.1.64/27 route to be advertised.

B. Router R1 will advertise both rou tes.

C. Router R1 should be reconfigured with an ACL instead of an ip prefix - list command.

D. Router R1 will deny the 172.16.1.0/27 route while permitting the 172.16.1.0/26 route to be advertised.


参考答案：D

第8题：

Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router‘s logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）

A. When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interface

B. When routing the packet, matching a route whose outgoing interface is the GRE tunnel interface

C. When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interface

D. When permitted by an ACL that was referenced in the associated crypto map


参考答案：B

第9题：

正确地为路由器命名为R1的命令是（）。

  • A、hostname R1
  • B、name R1
  • C、router name R1
  • D、name router R1

正确答案:A

第10题：

In which Cisco IOS configuration mode is the route distinguisher （RD） configured？（）

  • A、R1（config-route-at）#
  • B、R1（config-route-map）#
  • C、R1（config-it）#
  • D、R1（config-vrf）#
  • E、R1（config）#
  • F、R1（router）#

正确答案:D

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