Router 1 is configured for BGP as dual-homed on the Cisco network. Which three BGP attributes are carried in every BGP update on this router (both IBGP and EBGP)?()
第1题:
以下是在路由器Router1上的部分配置信息,结合图2-9所示的网络拓扑图和题干的描述信息,将(1)~ (4)空缺处的内容填写完整。
Router>enable
Routerconfig ter
Router (config) hostname Router1
Router1 (config) user Router2 password wg_wg
Router1 (config) no logging console
Router1 (config) isdn switch-type basic-net3
Routcr1 (config) (1)
Router1 (config-if) ip address 192.200.10.1 255.255.255.0
Router1 (config-if) (2)
Router1 (config-if) dialer map (3)
Router1 (config-if) dialer load-threshold 80
Router1 (config-if) ppp multilink
Router1 (config-if) dialer-group 1
Router1 (config-if) ppp authentication chap
Router1 (contig-if) no shutdown
Router1 (config-if) exit
(4)
Router1 (config) end
Router1
第2题:
请分析计算网段1中骨干路由器Router1的最小吞吐率,Router1至Router3之间链路、Router1至Switch1之间链路的双向传输带宽。
第3题:
【问题4】(2分)
根据图1-5,在主机host3上对网络1进行了连通性测试时所经过的路径是(9)。
(9)备选答案:
A.host3→Router3→Router2→网络1
B.host3→Router3→Router1→Router2→网络1
图1-5中Router3路由表中学习到202.117.113.0/30的路由,其下一条为202.117.112.1/30(Router2的S1接口地址),所以主机host3上对网络1进行连通性测试时所经过的路径:
host3→Router3→Router2→网络1。
【问题4】(2分)
(9)A或host3→Router3→Router2→网络 1
第4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
第5题:
A. Router A must have a Level 2 adjacency with the Level 1/Level 2 router in area 49.0001.
B. The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 1 link-state PDU (LSP) it floods into area 49.0001.
C. The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 2 LSP it floods into area 49.0001.
D. The Level 1/Level 2 router in area 49.0001 advertises these prefixes into area 49.0001 using a Level 2 LSP it floods into the area.
第6题:
下面是路由器Router1的配置命令列表,请为(6)~(10)空缺处填写合适的命令/参数,实现Router1的正确配置。
Router>enable
Router config terminal
Router (config) hostname Router1
Router1 (config) interface ethernet 0
Router1 (config-if) ip address (6)
Router1 (config-if) no shutdown
Router1 (config-if) (7)
Router1 (config-if) ip address (8)
Router1 (config-if) no shutdown
Router1 (config-if) exit
Router1 (config) ip routing
Router1 (config) router ospf 100
Router1 (config-router) (9)
Router1 (config-router) (10)
Router1 (config-router) ip ospf message-digest-key 1 md 5 wg_gcz
Router1 (config-router) area 0 authentication message-digest
Router1 (config-if) end
Router1 Copy run start
第7题:
A. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.2.
B. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.1.
C. Create a static route on Router 2 to 172.17.25.1 with a next hop of 10.10.10.1.
D. Create a static route on Router 1 to 172.17.25.1 with a next hop of 10.10.10.2.
第8题:
Cisco路由器第3模块第1端口通过E1标准的DDN专线与一台远程路由器相连,端口的IP地址为195.112.41.81/30,远程路由器端口封装PPP协议。下列路由器的端口配置,正确的是
A)Router (config)#interface s3/1
Router (config-if)#bandwidth 2048
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
B)Router (config)#interface a3/1
Router (config-if)#bandwidth 2000
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
C)Router (config)#interface s3/1
Router (config-if)#bandwidth 2
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
D)Router (config)#interface s3/1
Router (config-if)#bandwidth 2048
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation hdlc
Router (config-if)#exit
第9题:
下面是路由器Router1的配置命令列表,在空白处填写合适的命令/参数,实现Router1的正确配置。
Router1>en
Router1conf term
Router1(config)iriterface e0
Router1(config-if)ip address 192.1.0.129 255.255.255.192
Router1 (config-if)interface s0
Router1(config-if)ip address 192.200.10.5 255.255.255.252
Router1(config-if)end
Router1(config)Eouter (5)
Router1(config-router)network (6) area 0
Router1(config-router)network (7) area 1
Router1(config-router)exit
Router1copy run start
第10题:
Refer to the exhibits. Router B should advertise the network co nnected to the E0/0/0 interface to router A and block all other network advertisements. The IP routing table on router A indicates that it is not receiving this prefix from router B. What is the probable cause of the problem?()
A. An access list on router B is causing the 192.168.3.16/28 network to be denied
B. An access list on router B is causing the 192.168.3.32/28 network to be denied
C. The distribute list on router B is referencing a numbered access list that does not exist on router B
D. The d istribute list on router B is referencing the wrong interface