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When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA). Which two items are c ontained in the RA?（）A、any route advertisements it has receivedB、prefixes for the linkC、keepalive

题目

When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA). Which two items are c ontained in the RA?（）

  • A、any route advertisements it has received
  • B、prefixes for the link
  • C、keepalive timers
  • D、IPv6 address for the host
  • E、request for the local host IP address
  • F、lifetime of the prefix
参考答案和解析
正确答案:B,F
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相似问题和答案

第1题：

Which command must be globally enabled on a Cisco router to support IPv6?()

A. ip routing ipv6

B. ipv6 unicast - routing

C. ipv6 routing

D. ip classless

E. ipv6 cef


参考答案：B

第2题：

When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA).Which two items are c ontained in the RA?()

A. any route advertisements it has received

B. prefixes for the link

C. keepalive timers

D. IPv6 address for the host

E. request for the local host IP address

F. lifetime of the prefix


参考答案：B, F

第3题：

What are two instances when a WX device route carves? ()(Choose two.)

A. It occurs every 29 hours.

B. Packet interception mode is enabled.

C. The host is unreachable on the local subnet.

D. The subnet is unreachable using the advertised router.


参考答案：C, D

第4题：

What is the first thing that happens when IPv6 is enabled on an interface on a host？（）

  • A、A router solicitation is sent on that interface.
  • B、There is a duplicate address detection on the host interface.
  • C、The link local address is assigned on the host interface.
  • D、A neighbor redirect message is sent on the host interface.

正确答案:B

第5题：

Which three of these items are found within the router advertisement message of IPv6 stateless autoconfiguration?（） (Choose three.)

  • A、flags indicating the kind of autoconfiguration that can be done by hosts
  • B、default router information
  • C、/64 prefix that can be used on the link and the lifetime of the prefix
  • D、IPv6 DHCP server address information

正确答案:A,B,C

第6题：

Which command enables OSPF for IPv6?()

A. router ospf ipv6 process - id

B. ipv6 ospf process - id

C. router ospf process - id

D. ipv6 router ospf process - id


参考答案：D

第7题：

Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)()。

A.Host 1 addresses the frames to the MAC address of router R1

B.Host 1 looks in its ARP cache for the MAC address of router R1

C.Host 1 addresses the frames to the MAC address of web server 2

D.Host 1 sends the packets to router R1 to be forwarded to web server 2

E.Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2


参考答案：C, E

第8题：

A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG.For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）

A. When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.

B. When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.

C. When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.

D. When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.

E. None of the other answers is correct.


参考答案：E

第9题：

In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）

  • A、The peer router sends an end-of RIB message to the restarting router
  • B、The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
  • C、The restarting router does not remove any stale prefixes after the timer for stale entries expires
  • D、The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updates
  • E、The restarting router removes any stale prefixes after the timer for stale entries expires

正确答案:D,E

第10题：

Which command enables OSPF for IPv6?（）

  • A、router ospf ipv6 process - id
  • B、ipv6 ospf process - id
  • C、router ospf process - id
  • D、ipv6 router ospf process - id

正确答案:D

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