Which is true about OSPF router-id?（）A、It is used for type 1 router LSAB、Highest IP address of the loopback is usedC、router-id needs to be matched on ospf neighborsD、router-id is 16 bit
Which is true about OSPF router-id?（）
- A、It is used for type 1 router LSA
- B、Highest IP address of the loopback is used
- C、router-id needs to be matched on ospf neighbors
- D、router-id is 16 bit
相关考题：
Of the existing theories about the origin of carnival ，people are not sure which theory is more true to the fact.()
Referring to the exhibit, which two statements are true?() A. The route 192.168.1.0/25 is acceptedB. The route 192.168.2.0/24 is acceptedC. OSPF routes will be exported into RIPD. RIP routes will be exported into OSPF
Refer to the exhibit. The partial configuration for an OSPF ASBR and an Area 0 ABR is shown. Assume the OSPF configurations throughout the network are operable. Which statement about these configurations is true? （）A. The ASBR route - maps are basically useless, because there are no deny prefix - lists.B. LSA Type 5s wil l not be received by the ABR from the ASBR.C. The OSPF backbone will not learn any RFC 1918 addresses.D. The matched prefix - list addresses will be given a metric of 255, which is essentially unreachable.
Refer to the exhibit. Which statement is true about the configuration? () A. RTA will not establish an OSPF adjacency w ith RTBB. RTA will send OSPF hello packets, but will not send OSPF updatesC. RTA will not accept OSPF hello packets from RTBD. RTA will send OSPF updates, but will not establish an adjacency with RTB
Which is true about OSPF router－id?() A.It is used for type 1 router LSAB.Highest IP address of the loopback is usedC.router-id needs to be matched on ospf neighborsD.router-id is 16 bit
True friendship is like sound health,the value ___________is seldom known until it is lost.A.on which B.of whichC.about which D.among which
When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）A、OSPF hello interval is 5 secondsB、OSPF hello interval is 1 secondC、OSPF dead interval is 1 secondD、OSPF dead interval is 5 secondsE、OSPF dead interval is 20 secondsF、OSPF hello interval is 0.2 second
Which two statements are true about IS -IS routing?（）A、Based on the default timers, OSPF d etects a failure faster than IS - IS does.B、OSPF default timers permit more tuning than IS - IS does.C、IS - IS is more efficient than OSPF in the use of CPU resources.D、OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.E、IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.
A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the OSPF configuration.B、For the two vlans to communicate， a network statement for each subinterface needs to be added to the OSPF configuration.C、Direct inter-vlan communication does not require OSPFD、OSPF cannot be used if router-on-a-stick is configured on the router
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 is true about the frequency of OSPF LSA transmissions？（）A、 They are configured per OSPF area.B、 They are configured per virtual router.C、 They are configured per OSPF process.D、 They are configured per OSPF interface.
Which statement is true about IBGP routers? （）A、They must be fully meshedB、They can be in a different ASC、They must be directly connected
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 of the following is true about an OSPF area border router (ABR)?（）A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
Which three statements are correct about the differences in IS - IS and OSPF?（）A、IS - IS is more CPU - intensive than is OSPFB、For greater fine tuning there are more IS - IS timersC、IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAsD、New additions to the protocol are easily implemented in OSPF but not with IS - ISE、OSPF has more area types than does IS - IS
Which two statements about OSPF IPv6 routing are true？（）A、It requires OSPF version 3.B、automatically detects neighbors over NHMA interfacesC、It supports encryption usingD、It uses LSA type 9E、It uses LSA type 8
多选题Which two statements about route redistribution when implementing OSPF are true?（）ARoutes learned using any IP routing protocol can only be redistributed into non IP routing protocols.BOSPF can import routes learned using EIGRP, RIP, and IS - IS.COSPF routes cannot be exported into EIGRP, RIP, an d IS - IS.DAt the interdomain level, OSPF cannot import routes learned using BGP.EOSPF routes can be exported into BGP.
单选题In IPv6, the interfaces running OSPF can be configured with multiple ad dress prefixes. Which statement is true about the IPv6 addresses that can be included into the OSPF process?" （）ASpecific addresses can be selected using a prefix list.BSpecific addresses can be selected using a route map.CSpecific addresses cann ot be selected for importation into the OSPF process.DSpecific addresses can be selected using an ACL.
多选题Which three characteristics are true about voice traffic in the campus network？ （）ATCP retransmitsBbenignCgreedyDdrop sensitiveEsmoothFdelay insensitive
多选题Which two statements about OSPF IPv6 routing are true？（）AIt requires OSPF version 3.Bautomatically detects neighbors over NHMA interfacesCIt supports encryption usingDIt uses LSA type 9EIt uses LSA type 8
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 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
单选题Which statement is true about the frequency of OSPF LSA transmissions？（）A They are configured per OSPF area.B They are configured per virtual router.C They are configured per OSPF process.D They are configured per OSPF interface.
多选题Which is true about OSPF router-id?（）AIt is used for type 1 router LSABHighest IP address of the loopback is usedCrouter-id needs to be matched on ospf neighborsDrouter-id is 16 bit
单选题A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）AFor the two vlans to communicate，a network statement for the trunk interface needs to be added to the OSPF configuration.BFor the two vlans to communicate， a network statement for each subinterface needs to be added to the OSPF configuration.CDirect inter-vlan communication does not require OSPFDOSPF cannot be used if router-on-a-stick is configured on the router
多选题Which two statements are true about IS -IS routing?（）ABased on the default timers, OSPF d etects a failure faster than IS - IS does.BOSPF default timers permit more tuning than IS - IS does.CIS - IS is more efficient than OSPF in the use of CPU resources.DOSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.EIS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.