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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 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
更多 “ 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 timersD、IPv6 address for the hostE、request for the local host IP addressF、lifetime of the prefix” 相关考题
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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.
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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.
考题
Which command must be globally enabled on a Cisco router to support IPv6?()
A. ip routing ipv6B. ipv6 unicast - routingC. ipv6 routingD. ip classlessE. ipv6 cef
考题
Which command enables OSPF for IPv6?()
A. router ospf ipv6 process - idB. ipv6 ospf process - idC. router ospf process - idD. ipv6 router ospf process - id
考题
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 receivedB. prefixes for the linkC. keepalive timersD. IPv6 address for the hostE. request for the local host IP addressF. lifetime of the prefix
考题
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 R1B.Host 1 looks in its ARP cache for the MAC address of router R1C.Host 1 addresses the frames to the MAC address of web server 2D.Host 1 sends the packets to router R1 to be forwarded to web server 2E.Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2
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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 hostsB、default router informationC、/64 prefix that can be used on the link and the lifetime of the prefixD、IPv6 DHCP server address information
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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 routerB、The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing tableC、The restarting router does not remove any stale prefixes after the timer for stale entries expiresD、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 updatesE、The restarting router removes any stale prefixes after the timer for stale entries expires
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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.
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Which command enables OSPF for IPv6?（）A、router ospf ipv6 process - idB、ipv6 ospf process - idC、router ospf process - idD、ipv6 router ospf process - id
考题
What protocol specified by RFC 1256 will allow an enabled IP host a new router when a router becomes unavailable？ （）A、 IRDPB、 SNMPC、 HSRPD、 VRRP
考题
Which of the following commands would you use, to configure a default route to any destination NOT found in the routing table?（）A、Router(config)# ip default-route 0.0.0.0 255.255.255.255 s0B、Router(config)# ip route 0.0.0.0 255.255.255.255 s0C、Router(config)# ip default-route 0.0.0.0 0.0.0.0 s0D、Router(config)# ip route 0.0.0.0 0.0.0.0 s0E、Router(config)# ip route any any e0
考题
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.
考题
A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. What action will the router take？（）A、forwards the packetB、fragments the packetC、drops the packet silentlyD、drops the packet and sends an ICMP message
考题
A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. Which action will the router take?（）A、Forward the packet.B、Fragment the packet.C、Drop the packet silently.D、Drop the packet and send an ICMPv6 message.
考题
Which command can be used to filter a RIPv6 route from getting installed in the routing table？（）A、ipv6 router rip ccie distribute-list..B、ipv6 router rip ccie offset-list..C、interface e0/0 ipv6 rip ccie distribute-list..D、interface e0/0 ipv6 rip ccie advertise..
考题
Which three causes could prevent a host from getting an IPv6 address with stateless autoconfiguration？（）A、The autoconfig command is missing from the router interface.B、IPv6 multicast routing is not enabled on the router interface.C、IPv6 unicast routing is not enabled on the router interface.D、The router interface is configured with a /63 mask.E、The router interface is configured with a /65 mask.
考题
In which two ways does the BGP graceful capability preserve prefix information during a restart？（）A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.C、The peer router sends an end-of-RIB message to the restarting router.D、The restarting router removes any stale prefixes after the timer for stale entries expires.E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.
考题
Which of the following commands will cause RIPng to originate a default route advertisement whilesuppressing all other routes？（）A、Rl（config-if）#ipv6 default-information originateB、Rl（config-router）#ipv6 rip 〈process-name〉 default-information onlyC、Rl（config）#ipv6 route ：：/0 null 0D、Rl（config-if）#ipv6 rip 〈process-name〉 default-information onlyE、Rl（config-router）#ipv6 rip route ；：/0 originateF、Rl（config-router）#aggregate-address ：：/0 summarize-routes
考题
Which command must be globally enabled on a Cisco router to support IPv6?（）A、ip routing ipv6B、ipv6 unicast - routingC、ipv6 routingD、ip classlessE、ipv6 cef
考题
多选题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?（）Aany route advertisements it has receivedBprefixes for the linkCkeepalive timersDIPv6 address for the hostErequest for the local host IP addressFlifetime of the prefix
考题
单选题A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. Which action will the router take?（）A
Forward the packet.B
Fragment the packet.C
Drop the packet silently.D
Drop the packet and send an ICMPv6 message.
考题
多选题Which three causes could prevent a host from getting an IPv6 address with stateless autoconfiguration？（）AThe autoconfig command is missing from the router interface.BIPv6 multicast routing is not enabled on the router interface.CIPv6 unicast routing is not enabled on the router interface.DThe router interface is configured with a /63 mask.EThe router interface is configured with a /65 mask.
考题
多选题Which three of these items are found within the router advertisement message of IPv6 stateless autoconfiguration?（） (Choose three.)Aflags indicating the kind of autoconfiguration that can be done by hostsBdefault router informationC/64 prefix that can be used on the link and the lifetime of the prefixDIPv6 DHCP server address information
考题
单选题Which of the following commands will cause RIPng to originate a default route advertisement whilesuppressing all other routes？（）A
Rl（config-if）#ipv6 default-information originateB
Rl（config-router）#ipv6 rip 〈process-name〉 default-information onlyC
Rl（config）#ipv6 route ：：/0 null 0D
Rl（config-if）#ipv6 rip 〈process-name〉 default-information onlyE
Rl（config-router）#ipv6 rip route ；：/0 originateF
Rl（config-router）#aggregate-address ：：/0 summarize-routes
考题
单选题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.
考题
多选题In which two ways does the BGP graceful capability preserve prefix information during a restart？（）AThe peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.BThe router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.CThe peer router sends an end-of-RIB message to the restarting router.DThe restarting router removes any stale prefixes after the timer for stale entries expires.EThe restarting router does not remove any stale prefixes after the timer for stale entries expires.
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