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
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
相关考题：
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?
Which two IS－IS hello values must match to form a Level 1 IS－IS adjacency? () A.AFIB.AreaC.System idD.N-Selector
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
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）
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）
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.
What is the purpose of the RSVP hello interval?（）A、It is the size of the RSVP hello packetB、It is how long it maintains RSVP neighborsC、It is the length of time between RSVP hello packetsD、It is how long the router waits before declaring a router to be down
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）
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）
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）
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.
单选题In IS-IS, how long will the restart helper keep the restarting router in the up state?（）Auntil the hello dead timer expiresBuntil the restart duration timer expiresCuntil the restarting router sets the down bitDuntil the restart helper sends out three CSNPs
单选题How often are IS-IS Hello packets transmitted?（）A3 seconds for DIS; 9 seconds for non-DISB9 seconds for DIS; 3 seconds for non-DISC10 seconds for DIS; 3 seconds for non-DISD10 seconds for all routers
单选题In IS-IS， how long will the restart helper keep the restarting router in the up state？（）AThe hello dead timer expires.BThe restart duration timer expires.CThe restarting router sets the down bit.DThe restart helper sends out three CSNPs.
多选题Which two IS-IS hello values must match to form a Level 1 IS-IS adjacency？（）AAFIBAreaCSystem IDDN-Selector
单选题OSPF选举DR、BDR时会使用如下的那些报文？（）。AHELLO报文（Hello Packet）BDD报文（Database Description Packet）CLSR报文（Link State Request Packet）DLSU报文（Link State Update Packet）
单选题What is the purpose of the RSVP hello interval?（）AIt is the size of the RSVP hello packetBIt is how long it maintains RSVP neighborsCIt is the length of time between RSVP hello packetsDIt is how long the router waits before declaring a router to be down
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?（）AData, Frame, Packet, Segment, BitBData, Frame, Segment, Packet, BitCData, Packet, Frame, Segment, BitDData, Packet, Segment, Frame, BitEData, Segment, Frame, Packet, BitFData, Segment, Packet, Frame, Bit
多选题IS-IS的Hello报文可以具体细分为：（）。AL1IIHBL2IIHCP-2-PIIHDL3IIH。