Which two items should you know when configuring OSPF to dynamically learn routes? （）(Choose two.)A、OSPF area IDB、OSPF neighbor addressC、OSPF loopback addressD、OSPF authentication type
Which two items should you know when configuring OSPF to dynamically learn routes? （）(Choose two.)
- A、OSPF area ID
- B、OSPF neighbor address
- C、OSPF loopback address
- D、OSPF authentication type
相关考题：
Which two items should you know when configuring OSPF to dynamically learn routes? ()(Choose two.) A. OSPF area IDB. OSPF neighbor addressC. OSPF loopback addressD. OSPF authentication type
In JUNOS software, which statement is true regarding the OSPF advertisement of the loopback IP address on the ABR?() A. When Area 0 is active, the loopback interface must be configured in OSPF for it to be advertised.B. When Area 0 is active, the loopback address is automatically advertised into other areas.C. When Area 0 is active, the OSPF router-id must match the loopback address for the loopback address to be advertised.D. When Area 0 is active, the router-id must be configured for the loopback address to be advertised.
If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?() A. area IDB. router IDC. loopback addressD. IP address of interface on broadcast network
When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?() A. OSPF process IDB. OSPF router IDC. OSPF network typeD. OSPF memory usageE. OSPF CPU utilizationF. OSPF stub area configurations
When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?() A. All OSPF routers in stubby areas can have type 3 LSAs in their database.B. All OSPF routers in stubby areas can have type 7 LSAs in their database.C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.
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?（）A. 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?
When an OSPF design is planned, which implementation can help a router not have memory resource issues?() A. Have a backbone area (area 0) with 40 routers and use default routes to reach external destinationsB. Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPFC. Have less OSPF areas to reduce the need for interarea route summarizationsD. Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2
You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds.What could be the cause of this problem?（）A. OSPF authentication errors between some of the routersB. Two routers have the same OSPF router IDC. Issues with mistuned OSPF timersD. OSPF LSA pacing issues between some of the routersE. OSPF neighbor adjacency problems between some of the routers
Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)()。 A.It is locally significantB.It is globally significantC.It is needed to identify a unique instance of an OSPF databaseD.It is an optional parameter required only if multiple OSPF processes are running on the routerE.All routers in the same OSPF area must have the same process ID if they are to exchange routing information
Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（）A、It is locally significant.B、It is globally significant.C、It is needed to identify a unique instance of an OSPF database.D、It is an optional parameter required only if multiple OSPF processes are running on the router.E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information.
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?（）A、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?
When an OSPF design is planned, which implementation can help a router not have memory resource issues?（）A、Have a backbone area (area 0) with 40 routers and use default routes to reach external destinationsB、Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPFC、Have less OSPF areas to reduce the need for interarea route summarizationsD、Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2
When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）A、OSPF process IDB、OSPF router IDC、OSPF network typeD、OSPF memory usageE、OSPF CPU utilizationF、OSPF stub area configurations
Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。A、It is locally significantB、It is globally significantC、It is needed to identify a unique instance of an OSPF databaseD、It is an optional parameter required only if multiple OSPF processes are running on the routerE、All routers in the same OSPF area must have the same process ID if they are to exchange routing information
You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）A、OSPF authentication errors between some of the routersB、Two routers have the same OSPF router IDC、Issues with mistuned OSPF timersD、OSPF LSA pacing issues between some of the routersE、OSPF neighbor adjacency problems between some of the routers
Which statement about OSPF authentication is true？（）A、To enable OSPF authentication in a network， OSPF area 0 authentications must be enabled firstB、The payload of OSPF version 3 packets contains no authentication informationC、OSPF version 3 supports Advanced Encryption StandardD、OSPF version 3 uses router ID as a key to encrypt OSPF hello packetsE、OSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP
Which statement best describes OSPF external LSAs （type 5）？（）A、OSPF external LSAs are automatically flooded into all OSPF areas， unlike type 7 LSAs， which require that redistribution be configured.B、External LSAs （type 5） are automatically changed to type 1 LSAs at ASBRs.C、Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.D、External network LSAs （type 5） redistributed from other routing protocols into OSPF are not permitted to flood into a stub area.
Which two of the following actions must an OSPF NSF-capable router execute after a supervisor engine switchover?（） (Choose two.)A、Re-learn the available OSPF neighbors with neighbor relationship restartB、Send the graceful restart messageC、Re-acquire the link state database content for the networkD、Re-learn the available OSPF neighbors without neighbor relationship restart
If all OSPF routers on a broadcast network have the same OSPF priority， what parameter is used to determine the new BDR at the time of a DR failure？（）A、 area IDB、 router IDC、 loopback addressD、 IP address of interface on broadcast network
Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）A、all routers on a linkB、all routers in an areaC、all external OSPF peersD、all routers in an OSPF domain
Which routers must be configured with the same authentication string when configuring OSPF authentication？（）A、all routers on a linkB、all routers in an areaC、all external OSPF peersD、all routers in an OSPF domain
You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriate ARB. Which two commands should you use from the [edit] hierarchy level within the JUNOS software configuration mode？（）A、set protocols ospf area-range network/mask-lengthB、set protocols ospf area area-id nssa area-range network/mask-lengthC、set protocols ospf area area-id area-range network/mask-length restrictD、set protocols ospf area area-id nssa area-range network/mask-length restrict
You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriateABR. Which two commands should you use from the [edit] hierarchy level within JUNOS configuration mode?（）A、set protocols ospf area-range network/mask-lengthB、set protocols ospf area area-id nssa area-range network/mask-lengthC、set protocols ospf area area-id area-range network/mask-length restrictD、set protocols ospf area area-id nssa area-range network/mask-length restrict
When attepting to view the OSPF routes in the routing table, you issue the command show route table inet but no OSPF routes are displayed. What is the problem?（）A、The OSPF routes are located in the inet 4 routing tableB、THe OSPF routes are located in the inet 0 routing tableC、The OSPF routes are located in the inet 2 routing tableD、The OSPF routes are located in the inet 4.3 routing table
单选题If all OSPF routers on a broadcast network have the same OSPF priority， what parameter is used to determine the new BDR at the time of a DR failure？（）A area IDB router IDC loopback addressD IP address of interface on broadcast network
多选题Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。AIt is locally significantBIt is globally significantCIt is needed to identify a unique instance of an OSPF databaseDIt is an optional parameter required only if multiple OSPF processes are running on the routerEAll routers in the same OSPF area must have the same process ID if they are to exchange routing information
多选题Which two items should you know when configuring OSPF to dynamically learn routes? （）(Choose two.)AOSPF area IDBOSPF neighbor addressCOSPF loopback addressDOSPF authentication type