How often are IS-IS Hello packets transmitted?()A、3 seconds for DIS; 9 seconds for non-DISB、9 seconds for DIS; 3 seconds for non-DISC、10 seconds for DIS; 3 seconds for non-DISD、10 seconds for all routers

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

相似考题
更多“How often are IS-IS Hello packet”相关问题
  • 第1题:

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

    A.A

    B.B

    C.C

    D.D


    参考答案:C

  • 第2题:

    Hello, how are you?()

    AHello, how are you?

    BHow do you do? 

    CFine, thank you.

    DThat's OK.


    C

  • 第3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4题:

    Hello, how are you?()

    • A、Hello, how are you?
    • B、How do you do? 
    • C、Fine, thank you.
    • D、That's OK.

    正确答案:C

  • 第5题:

    How does an IPv6 router deal with a packet that is larger than the outgoing interface MTU?()

    • A、It will fragment the packet at Layer 2.
    • B、It will fragment the packet at Layer 3.
    • C、It will drop the packet and send an ICMPv6 message "packet too big" back to the source.
    • D、It will drop the packet.

    正确答案:C

  • 第6题:

    下列那些OSPF报文中会出现完整的LSA信息?()

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

    正确答案:D

  • 第7题:

    在IS-IS协议中一共有()种Hello报文。

    • A、1
    • B、2
    • C、3
    • D、4

    正确答案:C

  • 第8题:

    In IS-IS, how long will the restart helper keep the restarting router in the up state?()

    • A、The hello dead timer expires.
    • B、The restart duration timer expires.
    • C、The restarting router sets the down bit.
    • D、The restart helper sends out three CSNPs.

    正确答案:B

  • 第9题:

    单选题
    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


    正确答案: A
    解析: 暂无解析

  • 第10题:

    多选题
    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


    正确答案: C,D
    解析: 暂无解析

  • 第11题:

    单选题
    What is the purpose of the RSVP hello interval?()
    A

    It is the size of the RSVP hello packet

    B

    It is how long it maintains RSVP neighbors

    C

    It is the length of time between RSVP hello packets

    D

    It is how long the router waits before declaring a router to be down


    正确答案: A
    解析: 暂无解析

  • 第12题:

    多选题
    IS-IS的Hello报文可以具体细分为:()。
    A

    L1IIH

    B

    L2IIH

    C

    P-2-PIIH

    D

    L3IIH。


    正确答案: A,C
    解析: 暂无解析

  • 第13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14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15题:

    ()Fine, thanks.

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

    正确答案:D

  • 第16题:

    OSPF选举DR、BDR时会使用如下的那些报文?()。

    • 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)

    正确答案:A

  • 第17题:

    What is the purpose of the RSVP hello interval?()

    • A、It is the size of the RSVP hello packet
    • B、It is how long it maintains RSVP neighbors
    • C、It is the length of time between RSVP hello packets
    • D、It is how long the router waits before declaring a router to be down

    正确答案:C

  • 第18题:

    OSPF选举DR、BDR时会使用如下的那些报文?()

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

    正确答案:A

  • 第19题:

    下列()OSPF报文中会出现完整的LSA信息。

    • 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(LinkState Update Packet)

    正确答案:D

  • 第20题:

    单选题
    In IS-IS, how long will the restart helper keep the restarting router in the up state?()
    A

    until the hello dead timer expires

    B

    until the restart duration timer expires

    C

    until the restarting router sets the down bit

    D

    until the restart helper sends out three CSNPs


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    In IS-IS, how long will the restart helper keep the restarting router in the up state?()
    A

    The hello dead timer expires.

    B

    The restart duration timer expires.

    C

    The restarting router sets the down bit.

    D

    The restart helper sends out three CSNPs.


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    OSPF选举DR、BDR时会使用如下的那些报文?()。
    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)


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?()
    A

    Data, Frame, Packet, Segment, Bit

    B

    Data, Frame, Segment, Packet, Bit

    C

    Data, Packet, Frame, Segment, Bit

    D

    Data, Packet, Segment, Frame, Bit

    E

    Data, Segment, Frame, Packet, Bit

    F

    Data, Segment, Packet, Frame, Bit


    正确答案: D
    解析: 暂无解析