Which statement is true about the command ipv6 ospf 1 area 0?（）A、It must be issued before the network command to enable the OSPF pr ocess for IPv6.B、It must be issued after the network command to enable the OSPF process for IPv6.C、It must be issued in router global configuration mode to enable the OSPF process for IPv6.D、It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
Which statement is true about the command ipv6 ospf 1 area 0?（）
- A、It must be issued before the network command to enable the OSPF pr ocess for IPv6.
- B、It must be issued after the network command to enable the OSPF process for IPv6.
- C、It must be issued in router global configuration mode to enable the OSPF process for IPv6.
- D、It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
相关考题：
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.
When using OSPF as your IGP, which operational command must be enabled to populate the TED forCSPF calculations?() A. cspf enableB. disable no-cspfC. traffic-engineeringD. enable traffic-engineering-database
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about OSPFv3 on R1 after this configuration has been pasted into R1?（）ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0A. OSPF works on F0/0 and S0/0/0 without further configurationB. OSPF works with the addition of one command: a no shutdown command in OSPF router configur ation modEC. OSPF works with the addition of one command: an router - id command in OSPF router configuration modED. OSPFv3 needs at least two more configuration commands before it works on R1
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 necessaryB. The router must hav e at least one working link connected to each routing domainC. The redistribute command must be configured under EIGRP to send the routes to OSPFD. The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF
Which of the following answers can be verified as true based on the following command output from Router R1?（）R1show ip ospf virtual - linksVirtual Link OSPF_VL0 to router 4.4.4.4 is upRun as demand circuitDoNotAge LSA alloweD.Transit area 1, via interface FastEthernet0/1, Cost of using 3A. R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.B. The ping 4.4.4.4 command on R1 must currently be successful.C. R1‘s Fa0/0 OSPF cost is 3.D. 4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.
Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command.Which of the following commands must have been configur ed on R1‘s Fa0/0 interface?（）A. ip ospf authentication nullB. ip ospf authentication message - digestC. ip ospf authentication -key whatever- it - isD. ip ospf message - digest - key 1 md5 whatever - it - isE. ip ospf md5 1 key whatever - it - is
Which three route filtering statements are true?() 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 interfaceB. When you use the passive - interface command with RIPv2, multicasts are sent out the specified interfaceC. 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 interfaceD. When you use the passive - interface command with EIGRP, hel lo messages are not sent out the specified interfaceE. 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 interfaceF. When you use the passive - interface command with OSPF, hello messages are not sent out the specified interface
Which command enables OSPF for IPv6?() A. router ospf ipv6 process - idB. ipv6 ospf process - idC. router ospf process - idD. ipv6 router ospf process - id
Which statement is true about the command ipv6 ospf 1 area 0?() A. It must be issued before the network command to enable the OSPF pr ocess for IPv6.B. It must be issued after the network command to enable the OSPF process for IPv6.C. It must be issued in router global configuration mode to enable the OSPF process for IPv6.D. It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?() A. Interfaces will automatically detect and build adjacencies with neighbor routersB. DR and BDR elections will not occurC. DR and BDR elections will occurD. The neighbor command is required to build adjacenciesE. All routers must be configured in a fully meshed topology with all other routers
Which command enables OSPF for IPv6?（）A、router ospf ipv6 process - idB、ipv6 ospf process - idC、router ospf process - idD、ipv6 router ospf process - id
Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command. Which of the following commands must have been configur ed on R1's Fa0/0 interface?（）A、ip ospf authentication nullB、ip ospf authentication message - digestC、ip ospf authentication -key whatever- it - isD、ip ospf message - digest - key 1 md5 whatever - it - isE、ip ospf md5 1 key whatever - it - is
The command "clear ipv6 ospf process" was issued on a router. What does this commandaccomplish？（）A、The route table is cleared. Then the OSPF neighbors are reformedB、The OSPF adjacencies are cleared and initiated againC、The OSPF database is repopulated and then the shortest path first （SPF） algorithm isperformed.D、The shortest path first （SPF） algorithm is performed on the LSA databaseE、None of the other alternatives apply
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 two of these steps are minimum requirements to configure OSPFv3 under IPv6？（）A、Configure a routing process using the command ipv6 router ospf [process-id].B、Add the network statement for the interfaces on which OSPF will run.C、Configure OSPF on the interface that it will run on.D、Use the passive-interface command on the interfaces on which OSPF should not run.E、Enable routing.
Which three route filtering statements are true?（）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 interfaceB、When you use the passive - interface command with RIPv2, multicasts are sent out the specified interfaceC、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 interfaceD、When you use the passive - interface command with EIGRP, hel lo messages are not sent out the specified interfaceE、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 interfaceF、When you use the passive - interface command with OSPF, hello messages are not sent out the specified interface
An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）A、Interfaces will automatically detect and build adjacencies with neighbor routersB、DR and BDR elections will not occurC、DR and BDR elections will occurD、The neighbor command is required to build adjacenciesE、All routers must be configured in a fully meshed topology with all other routers
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 necessaryB、The router must hav e at least one working link connected to each routing domainC、The redistribute command must be configured under EIGRP to send the routes to OSPFD、The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF
When using OSPF as your IGP， which operational command must be enabled to populate the TED for CSPF calculations？（）A、cspf enableB、disable no-cspfC、traffic-engineeringD、enable traffic-engineering-database
You execute a command to resize a data file， sales.dbf， of size 200 MB in your database： ALTER DATABASE DATAFILE ’/remorse/sales.dbf’ RESIZE 150M； Which statement is true about this command（）A、The command must be issued in MOUNT state.B、The command succeeds only if the data file is offline.C、The command must be issued when the database is in the archivelog mode.D、The command succeeds if no extent in the tablespace is currently allocated above the 150 MB boundary of the file.
You just issued the following statement: ALTER TABLE SALES DROP COLUMN PROFIT. Which of the following choices identifies when the column will actually be removed from Oracle?（）A、Immediately following statement execution B、After the ALTER TABLE DROP UNUSED COLUMNS command is issued C、After the ALTER TABLE SET UNUSED COLUMN command is issued D、After the ALTER TABLE MODIFY command is issued
单选题You execute a command to resize a data file， sales.dbf， of size 200 MB in your database： ALTER DATABASE DATAFILE ’/remorse/sales.dbf’ RESIZE 150M； Which statement is true about this command（）AThe command must be issued in MOUNT state.BThe command succeeds only if the data file is offline.CThe command must be issued when the database is in the archivelog mode.DThe command succeeds if no extent in the tablespace is currently allocated above the 150 MB boundary of the file.
多选题Which two of these steps are minimum requirements to configure OSPFv3 under IPv6？（）AConfigure a routing process using the command ipv6 router ospf [process-id].BAdd the network statement for the interfaces on which OSPF will run.CConfigure OSPF on the interface that it will run on.DUse the passive-interface command on the interfaces on which OSPF should not run.EEnable routing.
单选题The command "clear ipv6 ospf process" was issued on a router. What does this commandaccomplish？（）AThe route table is cleared. Then the OSPF neighbors are reformedBThe OSPF adjacencies are cleared and initiated againCThe OSPF database is repopulated and then the shortest path first （SPF） algorithm isperformed.DThe shortest path first （SPF） algorithm is performed on the LSA databaseENone of the other alternatives apply
单选题Which statement is true about the command ipv6 ospf 1 area 0?（）AIt must be issued before the network command to enable the OSPF pr ocess for IPv6.BIt must be issued after the network command to enable the OSPF process for IPv6.CIt must be issued in router global configuration mode to enable the OSPF process for IPv6.DIt must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
单选题Which command enables OSPF for IPv6?（）Arouter ospf ipv6 process - idBipv6 ospf process - idCrouter ospf process - idDipv6 router ospf process - id
单选题Which statement about OSPF authentication is true？（）ATo enable OSPF authentication in a network， OSPF area 0 authentications must be enabled firstBThe payload of OSPF version 3 packets contains no authentication informationCOSPF version 3 supports Advanced Encryption StandardDOSPF version 3 uses router ID as a key to encrypt OSPF hello packetsEOSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP