OSPF is enabled on router A. You execute the following command on router A and receive theaccompanying output:RouterA#ping 224.0.0.5 repeat1Type escape sequence to abort.Sending 1, 1 00 - byte ICMP Echos to 224.0.0.5, timeout is 2 seconds:Reply to request 0 from 10.100.100.1, 4 ms10.100.100.1 is the IP address of a loopback interface on router A. What can you conclude about router A?（）

A. Only the router A loopback interface is parti cipating in the OSPF routing process
B. None of the router A interfaces are participating in the OSPF routing process
C. Router A is using the loopback interface IP address as its OSPF router ID
D. Router A does not have any reachable OSPF neighbor

Which two statements about route redistribution when implementing OSPF are true?（）

A. Routes learned using any IP routing protocol can only be redistributed into non IP routing protocols.
B. OSPF can import routes learned using EIGRP, RIP, and IS - I
C. OSPF routes cannot be exported into EIGRP, RIP, an d IS - I
D. At the interdomain level, OSPF cannot import routes learned using BG
E. OSPF routes can be exported into BG

Under which circumstance will a branch ISR router contain interface vlan configurations?（）

A. performing inter - VLAN routing
B. performing 802.1Q trunking
C. performi ng ISL trunking
D. Ethernet Switch Module installed
E. ADSL WIC installed
F. running Call Manager Expre

When policy - based routing (PBR) is being configured, which three criteria can the set command specify?（）

A. all interfaces in the path toward the destination
B. all networks in the path toward the destination
C. adjacent next hop router in the path toward the destination
D. all routers in the path toward the destination
E. all interfaces through which the packets can be routed
F. type of service and precedence in the IP packet

Which BGP feature shou ld be used to avoid high memory utilization on a router?（）

A. soft - reconfiguration
B. route refresh
C. BGP communities
D. full - mesh BGP peering

For a router to successfully redistribute routes between OSPF and EIGRP, which of the following are true?（）

A. The router must have one routing protocol configured, but configuration for both routing protocols is not necessary
B. The router must hav e at least one working link connected to each routing domain
C. The redistribute command must be configured under EIGRP to send the routes to OSPF
D. The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF

Based on the need to limit processing and bandwidth utilization due to dynamic routing protocol operation, the foll owing routing requirements have been specified for your network. - partial and incremental routing updates - only the devices affected by a topology change perform route recomputation - route recomputation only occurs for routes that were affected Which dynamic routing protocol should be deployed in your network to best meet these requirements?（）

A. BGP
B. OSPF
C. IS - IS
D. EIGRP
E. RIPv2

You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）

A. Internal routers within the backbone area (area 0)
B. Internal routers within the NSSAs
C. Internal routers within the stubby areas
D. ASBRs
E. ABRs
F. DRs and BDR

You are troubleshooting an OSPF problem where external routes are not showing up in the OSPF database. Which two options a re valid checks that should be performed first to verify proper OSPF operation?（）

Are the ASBRs trying to redistribute the external routes into a totally stubby area?
B. Are the ABRs configured with stubby areas?
C. Is the subnets keyword being used with the redistribution command?
D. Is backbone area (area 0) contiguous?
E. Is the CPU utilization of the routers high?

电影缓冲的原因？