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

题目
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?（）
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

相似考题

1.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.

2.Which two statements are true about using IPv4 and IPv6 simultaneously on a network segment? ()A. IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts.B. IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.C. Hosts can be configured to receive both IPv4 and IPv6 addresses via DHCP.D. Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only.E. IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.

3.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

4.is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group。A．SMTPB．ICMPC．MIMED．IGMP

更多“When an IPv6 enabled host boots, it sends a router solicitat”相关问题

  • 第1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2题：

    Anytime a host or a router has an IP datagram to send to another host or router, it has the（　）address of the receiver. This address is obtained from the DNS if the sender is the host or it is found in a routing table if the sender is a router. But the IP data gram must be（　） in a frame to be able to pass through the physical network. This means that the sender needs the （　）address of the receiver. The host or the router sends an ARP query packet. The packet includes the physical and IP addresses of the sender and the IP address of the receiver. Because the sender does not know the physical address of the receiver, the query is（　） over the network.Every host or router on the network receives and processes the ARP query packet, but only the intended recipient recognizes its IP address and sends back an ARP response packet.The response packet contains the recipient's IP and physical addresses. The packet is（请作答此空） directly to the inquirer by using the physical address received in the query packet.

    A. multicast
    B. unicast
    C. broadcast
    D. multiple unicast

    答案：B
    解析：
    任何时候主机或路由器要发送 IP 数据报发送给另一主机或路由器时，都需要知道接收方的逻辑地址。发送主机从 DNS 获得该地址，发送路由器则在路由表中找到该地址。但 IP 数据报必须封装在帧中才能通过物理网络。这意味着发送者需要知道接收者的物理地址。主机或路由器需发送 ARP 查询报文，该报文分组包含发送者的物理地址和 IP 地址及接收者的 IP 地址。这是因为送者不知道接收者的物理地址，所以需在全网广播报文。网络上的每个主机或路由器都能接收并处理该 ARP 查询报文，但只有预期的接收者识别其 IP 地址并响应该 ARP 报文。响应报文包含接收者的 IP 地址和物理地址。包含了接收者物理地址的响应报文分组通过单播的方式直接发送给发送者。

  • 第3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4题：

    Which two statements are true about using IPv4 and IPv6 simultaneously on a network segment? （）

    • A、IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts.
    • B、IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.
    • C、Hosts can be  configured to receive both IPv4 and IPv6 addresses via DHCP.
    • D、Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only.
    • E、IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.

    正确答案:A,C

  • 第5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.

    正确答案:C,D

  • 第6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.

    正确答案:C,D,E

  • 第7题：

    Which three are needed to run VRF lite for IPv6 on a router？ （）

    • A、VRF definition for IPv6
    • B、MP BGP for IPv6
    • C、LDP
    • D、VRF-enabled routing protocol
    • E、VRF-enabled interface

    正确答案:A,D,E

  • 第8题：

    How does the ERX Edge Router interact with subscriber IP addresses assigned by an externa lDHCP server?（）

    • A、It monitors messages from the external server and updates the routing table as needed.
    • B、It maintains the leases for the DHCP server and reassigns addresses to new subscribers.
    • C、It sends keepalives to the subscriber and makes the address available when the subscriber stops responding.
    • D、It sends keepalives to the subscriber and removes the host route when the subscriber stops responding.

    正确答案:A

  • 第9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?（）
    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


    正确答案： D,B
    解析： 暂无解析

  • 第10题：

    单选题
    How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）
    A

    It monitors messages from the external server and updates the routing table as needed.

    B

    It maintains the leases for the DHCP server and reassigns addresses to new subscribers.

    C

    It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.

    D

    It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    多选题
    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.


    正确答案： D,A
    解析： 暂无解析

  • 第12题：

    多选题
    Which three are needed to run VRF lite for IPv6 on a router？（）
    A

    VRF definition for IPv6

    B

    MP BGP for IPv6

    C

    LDP

    D

    VRF-enabled routing protocol

    E

    VRF-enabled interface


    正确答案： E,D
    解析： 暂无解析

  • 第13题：

    Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B?()

    A.The loopback addresses are on different subnets

    B.The value of the dead timers on the router are different

    C.Route summarization is enabled on both routers

    D.The process indentifier on router A is different than the process identifier on router B


    参考答案：B

  • 第14题：

    The TTL field was originally designed to hold a time stamp, which was decremented by each visited router. The datagram was ( ) when the value became zero. However, for this scheme, all the machines must have synchronized clocks and must know how long it takes for a datagram to go from one machine to another. Today, this field is used mostly to control the ( ) number of hops (routers) visited by the datagram. When a source host sends the datagram, it ( ) a number in this field. Each router that processes the datagram decrements this number by 1. If this value, after being decremented, is zero, the router discards the datagram.This field is needed because routing tables in the Internet can become corrupted.A datagram may travel between two or more routers for a long time without ever getting delivered to the (请作答此空).This field limits the ( ) of a datagram.

    A.switch
    B.router
    C.source host
    D.destination host

    答案：D
    解析：
    TTL的基本概念。

  • 第15题：

    What protocol specified by RFC 1256 will allow an enabled IP host a new router when a router  becomes unavailable？ （）

    • A、 IRDP
    • B、 SNMP
    • C、 HSRP
    • D、 VRRP

    正确答案:A

  • 第16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

    正确答案:C,E

  • 第17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.

    正确答案:E

  • 第18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

    正确答案:B,F

  • 第19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

    正确答案:B

  • 第20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.


    正确答案： D
    解析： 暂无解析

  • 第21题：

    多选题
    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.


    正确答案： A,E
    解析： 暂无解析

  • 第22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. What action will the router take？（）
    A

    forwards the packet

    B

    fragments the packet

    C

    drops the packet silently

    D

    drops the packet and sends an ICMP message


    正确答案： C
    解析： 暂无解析

  • 第23题：

    多选题
    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


    正确答案： E,C
    解析： 暂无解析

  • 第24题：

    单选题
    What protocol specified by RFC 1256 will allow an enabled IP host a new router when a router  becomes unavailable？ （）
    A

     IRDP

    B

     SNMP

    C

     HSRP

    D

     VRRP


    正确答案： C
    解析： 暂无解析

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