更多"Routers R1 and R2, OSPF neighbors i"的相关试题:
[多项选择] Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this change?()
A. The show ip ospf neighbor command on R1 lists the revised Hello timer
B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer
C. The R1 - R2 neighborship fails due to Hello timer mismatcH
D. The show ip ospf interface command on R1 lists the revised Hello timer
[单项选择] Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails. Which of the following wo uld not be useful when investigating whether authenticationhad anything to do with the failure?()
A. debug eigrp packet
B. show key chain
C. show ip eigrp neighbor failure
D. show clock
[多项选择] Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following is true as a result?()
A. R1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1
B. R1 can send IP packets to R2, but R2 cannot send IP packets to R1
C. R2 no longer learns EIGRP routes from R1 for routes not connected to R1
D. R1 no longer replies to R2's Query messages
E. R2n o longer sends to R1 Query messages
[单项选择] Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange?()
A. The show ip eigrp neighbors command on R1 lists the revised Hello timer
B. The show ip eigrp interfaces command on R1 lists the revised Hello timer
C. The R1 - R2 neighborship fails due to Hello timer mismatcH
D. The show ip eigrp interfaces detail command on R1 lists the revised Hello timer
[单项选择] Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10. Under what conditions will R1 choose as it s best route the route through R22?()
A. R1 will always choose the route through R22.
B. As long as R1's best internal OSPF cost to reach R22 is less than 10.
C. As long as R1's best internal OSPF cost to reach R22 is less than 20.
D. R1 will never choo se the route through R22 if the E1 route through R2 is available.
[多项选择]The maximum number of routers per OSPF area typically depends on which three factors?()
A. the kind of OSPF areas being implemented
B. the number of external LSAs in the network
C. the number of DRs and BDRs in the areas
D. the number of virtual links in the areas
E. how well the areas can be summarized
F. the use of LSA filters
[多项选择]To make OSPF area 4 totally stubby, the following command was issued on the ABR in router configuration mode: area 4 stub.Which two things need to be done to finish making area 4 a totally stubby area?()
A. Apply the area 4 stub command to all routers in the area
B. On the ABR, use the area 4 stub command with the no - summary keyword
C. On the ABR, specify a default cost for the area with the area default - cost command
D. On the ABR, use the default - information originate command to inject a default route into area 4
E. Use the auto - cost command on each router in the area to automatically determine the cost to other OSPF areas
[单项选择]Which OSPF area type allows for the flooding of a Type 7 LSA?()
A. stub
B. transit
C. border
D. not-so-stubby
[单项选择]Which of the following is true about an OSPF area border router (ABR)?()
A. The ABR must have multiple interfaces connected to the backbone areA
B. An ABR is a router with two interfaces, each connected to a different nonbackbone areA
C. The only requirement to be considered an ABR is at least one interface connected to the backbone areA
D. An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
[多项选择]What are two benefits of using a single OSPF area network design?()
A. it reduces the number of required OSPF neighbor adjacencies
B. It reduces the types of LSAs that are generated
C. It is less CPU intensive for routers in the single area
D. It increases LSA response times.
E. It removes the need for virtual links
[简答题]OSPF的域间路由通告行为?问R1能够将AREA 1通告给AREA 0的域间路由在通告回AREA 1吗?为什么?
[多项选择]相对于OSPF的stub area, OSPF的totally stubby area有何不同()
A. 不接收类型5的LSAs.
B. 是一个思科专有的特性
C. 不接收汇聚的链路状态广播
D. 应用了路由重注入
[单项选择] Router R1 is redistributing between two OSPF processes. Given the configuration shown, which includes all commands in the route map named fred, which of the following answers is true regarding the redistribution into OSPF process 1?() router ospf 1 redistribute ospf 2 external 2 route - map fred ! route - map fred permit 10 match ip address 1 set metric - type type - 1
A. No routes are redistributed because a route cannot be both E1 and E2.
B. Only OSPF E2 routes in the OSPF 2 domain will be considered for redistribution.
C. Inside the OSPF 2 domain, any formerly E2 routes will become E1 routes.
D. Routes permitted by ACL 1 will be redistributed, regardless of whether the routes are E1 or E2 routes.
[单项选择] Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?() interface f0/0 mac - address 1111.1111.1 111 ipv6 address 2000::/64 eui - 64 ipv6 address 2001::1/64
A. The next hop is 2000::1311:11FF:FE11:1111
B. The next hop is FE80::1311:11FF:FE11:1111
C. The next hop is FE80::5111:11FF:FE11:1111
D. The next hop is 2001::1
[单项选择] 下列配置中,R1的OSPF路由器ID是() R1(config)#interface s0/0/0 R1(config-if)#ip add 192.168.2.1 255.255.255.252 R1(config)#int loopback 0 R1(config-if)#ip add 10.1.1.1 255.255.255.255 R1(config)#router ospf 1 R1(config-if)#network 192.168.2.0 0.0.3.255 area 0
A. 192.168.2.1
B. 10.1.1.1
C. 192.168.2.0
D. 255.255.255.255
[单项选择] R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1's best route for 10.1.1.0/24?()
A. R2's Type 1 LSA
B. Subnet 10.1.1.0/24's Type 2 LSA
C. ABR1's Type 1 LSA in area 0
D. Subnet 10.1.1.0/24's Type 3 LSA in Area 0
E. Subnet 10.1.1.0/24's Type 3 LSA in Area 1
[单项选择] 请问以下配置中,R1的OSPF路由器ID是什么() R1(config)#interface s0/0/0 R1(config-if)#ip add 192.168.2.1 255.255.255.252 R1(config)#int loopback 0 R1(config-if)# ip add 10.1.1.1 255.255.255.255 R1(config)#router ospf 1 R1(config-if)#network 192.168.2.0 0.0.3.255 area 0
A. 192.168.2.1
B. 10.1.1.1
C. 192.168.2.0
D. 255.255.255.255
[填空题]如果一个OSPF中只有一个area,那么这个area的ID是()