How often are IS-IS Hello packet

题目

How often are IS-IS Hello packets transmitted?()

  • A、3 seconds for DIS; 9 seconds for non-DIS
  • B、9 seconds for DIS; 3 seconds for non-DIS
  • C、10 seconds for DIS; 3 seconds for non-DIS
  • D、10 seconds for all routers
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相似问题和答案

第1题:

A:Hello, Linda, how are you? B:( ).

A. Very good. Are you good?

B. Very well, thank you. And you?

C. Hello, Rose, how do you do?


答案:B

第2题:

What is the purpose of the OSPF hello packet?()

A.A

B.B

C.C

D.D


参考答案:C

第3题:

Americans often ______ each other simply with “hello” or “Hi”.

A.ask

B.greet

C.say

D.talk


参考答案:B

第4题:

在邻接关系的建立过程中,IS-IS需要检查两端的MTU是否大小一致,缺省情况下,IS-IS协议在将Hello报文填充至MTU大小。


正确答案:正确

第5题:

Hello, how are you?()

AHello, how are you?

BHow do you do? 

CFine, thank you.

DThat's OK.


C

第6题:

Which two IS-IS hello values must match to form a Level 1 IS-IS adjacency? ()

A.AFI

B.Area

C.System id

D.N-Selector


参考答案:A, B

第7题:

How often are IS-IS Hello packets transmitted?()

A. 3 seconds for DIS; 9 seconds for non-DIS

B. 9 seconds for DIS; 3 seconds for non-DIS

C. 10 seconds for DIS; 3 seconds for non-DIS

D. 10 seconds for all routers


参考答案:A

第8题:

—_____ can you be ready, Andy?

—In ten minutes.

A. How much B. How often C. How long D. How soon


正确答案:D

第9题:

两台运行OSPF协议的路由器通过点对点的链路相连,在两者链路状态数据库达到同步(邻居状态机为FULL)之后的2个小时之内,在两台路由器之间的链路上,一定有下列的那些报文在传递?()

  • A、HELLO报文(Hello Packet)
  • B、DD报文(Database Description Packet)
  • C、LSR报文(Link State Request Packet)
  • D、LSU报文(Link State Update Packet)
  • E、LSAck报文(Link State Acknowledgmen Packet)

正确答案:A,D,E

第10题:

()Fine, thanks.

  • A、How do you do?
  • B、Hello!
  • C、Nice to meet you.
  • D、How are you?

正确答案:D

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