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What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multi-access network?()

  • A、10
  • B、40
  • C、30
  • D、20

参考答案

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考题 What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multiaccess network?() A.10B.40C.30D.20

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考题 单选题What is the default maximum number of equal-cost paths that can be placed into the routing of a cisco OSPF router?()A 16B 2C unlimitedD 4

考题 单选题What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multiaccess network?()A 10B 40C 30D 20

考题 单选题What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?()A It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B It sends a copy of its neighbor table to all adjacent routers.C It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.

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考题 多选题You work as a network technician at. Your boss, Mrs. , is interested in the Spanning Tree Protocol timers.  What can you tell her regarding the default STP timers? ()AThe hello time is 5 seconds.BThe forward delay is 10 seconds.CThe hello time is 2 seconds.DThe forward delay is 15 secondsEThe max_age timer is 15 seconds.FThe hello time is 10 seconds.GThe max_age timer is 20 seconds.HThe forward delay is 20 seconds.IThe max_age timer is 30 seconds.

考题 单选题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

考题 单选题In a point-to point network, which address are OSPF hello packets sent to?()A 127.0.0.1B 192.168.0.5C 223.0.0.1D 172.16.0.1E 224.0.0.5F 254.255.255.255.255