The router sends the file debugOSPF (containing hellos sent and LSA updates) to the syslog server.
The router traces both OSPF hellos sent and LSA updates, and stores the results in the debugOSPFfile.
The router traces both OSPF hellos sent and LSA updates, and sends the results to the syslog process with the debugOSPF facility.
The router traces all OSPF operations, stores the results in the debugOSPF file, and marks both hellos sent and LSAupdates in the file with a special flag.
第1题：
A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG.For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）
A. When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
B. When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
C. When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
D. When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.
E. None of the other answers is correct.
第2题：
A. After the router ospf 10 and passive - interface s0/0 commands have been issued , the s0/0 interface will not send any OSPF updates, but will receive routing updates on that interface
B. When you use the passive - interface command with RIPv2, multicasts are sent out the specified interface
C. After the router rip and passive -interface s0/0 commands have been issued, the s0/0 interface will not send any RIP updates, but will receive routing updates on that interface
D. When you use the passive - interface command with EIGRP, hel lo messages are not sent out the specified interface
E. After the router eigrp 10 and passive - interface s0/0 commands have been issued, the s0/0 interface will not send any EIGRP updates, but will receive routing updates on that interface
F. When you use the passive - interface command with OSPF, hello messages are not sent out the specified interface
第3题：
A. The router sends the file debugOSPF (containing hellos sent and LSA updates) to the syslog server.
B. The router traces both OSPF hellos sent and LSA updates, and stores the results in the debugOSPFfile.
C. The router traces both OSPF hellos sent and LSA updates, and sends the results to the syslog process with the debugOSPF facility.
D. The router traces all OSPF operations, stores the results in the debugOSPF file, and marks both hellos sent and LSAupdates in the file with a special flag.
第4题：
A. RTA will not establish an OSPF adjacency w ith RTB
B. RTA will send OSPF hello packets, but will not send OSPF updates
C. RTA will not accept OSPF hello packets from RTB
D. RTA will send OSPF updates, but will not establish an adjacency with RTB
第5题：
Refer to the exhibit. You have completed an OSPF implementation, and you are verifying OSPF operation. You notice that router A and router B are stuck in the two - way state. From the show ip ospf interface command output, what is the cause of this issue?（）
A. All OSPF implementations must have at le ast one interface in area 0.
B. You are attempting to run in the broadcast mode over an NBMA interface.
C. Both routers are configured to function as a BDR; therefore, there is no DR router.
D. Someone has changed the OSPF router ID; therefore you must clear the OSPF process.
E. The OSPF priority is set to 0 on both routers; therefore neither can become the DR.
第6题：
Refer to the exhibit. OSPF is configured on all routers in the network. Area 5 is configured as an NSSA areA. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5?（）
A. type 1 Router LSA
B. type 2 Network LSA
C. type 3 Network Summary LSA
D. type 4 ASBR Summary LSA
E. type 5 AS External LSA
F. type 7 NSSA External LSA
第7题：
A. The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.
第8题：
A. BGP updates that travel through the local router and are destined for a remote router.
B. OSPF hello packets that are sent from a remote router and are destined for the local router.
C. Telnet traffic that is sent from a remote host and is destined for the local router.
D. Telnet traffic that travels through the local router and is destined for a remote end host.
第9题：
A. All BGP updates that are received on router R 2 will be sent to routers R3 and R4. Routers R3 and R4 will then forward those BGP updates to router R5
B. None of the BGP updates that are received on router R2 will ever be received by router R5
C. All BGP updates that are received on router R2 will not be sent to routers R3 and R4
D. All BGP updates that are received on router R2 will be sent directly to router R5
第10题：
Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF).Which two statements best describe the OSPF link - state routing pro tocol?（）
A. OSPF sends updates every 10 seconds
B. OSPF sends triggered updates when a network change occurs
C. When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast address
D. OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization