Why is IPv6 packet processing more effective than IPv4 packet processing?（）A、fixed header sizeB、smaller header sizeC、fewer header fieldsD、variable header size

题目

Why is IPv6 packet processing more effective than IPv4 packet processing?（）

  • A、fixed header size
  • B、smaller header size
  • C、fewer header fields
  • D、variable header size
相似考题

1.Which element occurs first during the first－packet－path processing?()A. destination NATB. forwarding lookupC. route lookupD. SCREEN options

2.Which two firewall filter actions will terminate the processing and evaluation of a packet?()A. permitB. acceptC. denyD. discard

3.What are two ways that packet fragmentation is handled differently between IPv6 and IPv4?()A. End hosts determine the path MTU for IPv6.B. End hosts determine the path MTU for IPv4.C. Packet fragmentation occurs at intermediate nodes for IPv4.D. Packet fragmentation occurs at intermediate nodes for IPv6.

4.Which ERX Edge Router component is responsible for all packet processing and packet forwarding?()A.I/O adapterB.line moduleC.shared memory fabricD.switch route processor

更多“Why is IPv6 packet processing mo”相关问题

  • 第1题：

    Why is IPv6 packet processing more effective than IPv4 packet processing?()

    A. fixed header size

    B. smaller header size

    C. fewer header fields

    D. variable header size


    参考答案：A

  • 第2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3题：

    What best describes processing delay？（）

    • A、the time required from receipt of the incoming frame， until the frame/packet has been queued for transmission
    • B、the time taken for a single packet to traverse the physical medium from one end to the other
    • C、the time taken to place a frame on the physical medium for transport
    • D、the time spent for a packet to reside in the output queue of a router

    正确答案:A

  • 第4题：

    Which two firewall filter actions will terminate the processing and evaluation of a packet?（）

    • A、permit
    • B、accept
    • C、deny
    • D、discard

    正确答案:B,D

  • 第5题：

    In which integration method is an IPV6 packet encapsulated within an IPV4 protocol？（）

    • A、proxy
    • B、dual-stack
    • C、tunneling
    • D、dot1q

    正确答案:C

  • 第6题：

    多选题
    Which two statements about Junos software packet handling are correct?（）(Choose two.)
    A

    The Junos OS applies service ALGs only for the first packet of a flow.

    B

    The Junos OS uses fast-path processing only for the first packet of a flow.

    C

    The Junos OS performs policy lookup only for the first packet of a flow.

    D

    The Junos OS applies SCREEN options for both first and consecutive packets of a flow.


    正确答案： B,D
    解析： 暂无解析

  • 第7题：

    问答题
    why do you configure GRE in IPV6？

    正确答案： （1）use GRE tunnels to carry ipv6 traffic over ipv4 network.
    （2）The primary use of GRE tunnels is for stable connections that require regular secure communication between two edge routers or between an edge router and an end system.
    解析： 暂无解析

  • 第8题：

    单选题
    Why is IPv6 packet processing more effective than IPv4 packet processing?（）
    A

    fixed header size

    B

    smaller header size

    C

    fewer header fields

    D

    variable header size


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    In which integration method is an IPV6 packet encapsulated within an IPV4 protocol?（）
    A

    proxy

    B

    dual-stack

    C

    tunneling

    D

    dot1q


    正确答案： A
    解析： 暂无解析

  • 第10题：

    多选题
    Which two statements about the use of SCREEN options are correct？（）
    A

    SCREEN options are deployed at the ingress and egress sides of a packet flow.

    B

    Although SCREEN options are very useful， their use can result in more session creation.

    C

    SCREEN options offer protection against various attacks at the ingress zone of a packet flow.

    D

    SCREEN options examine traffic prior to policy processing， thereby resulting in fewer resouces used formalicious packet processing.


    正确答案： C,D
    解析： 暂无解析

  • 第11题：

    多选题
    vPath is a critical component in the VNS architecture. Which two are functions of vPath？（）
    A

    intelligent traffic steering to the VSG

    B

    offloading the processing from the VSG to the VEM

    C

    intelligent traffic steering to the VNMC

    D

    offloading the processing from the VSG to the flow manager

    E

    deep packet inspection


    正确答案： A,B
    解析： 暂无解析

  • 第12题：

    单选题
    If the PFE does not have a route to the destination address of a packet， which action will be taken？（）
    A

    The PFE floods the packet out of all interfaces.

    B

    The PFE drops the packet and sends a destination unreachable notification back to source device.

    C

    The PFE forwards the packet to the routing engine for further processing.

    D

    The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    vPath is a critical component in the VNS architecture. Which two are functions of vPath？（）

    • A、 intelligent traffic steering to the VSG
    • B、 offloading the processing from the VSG to the VEM
    • C、 intelligent traffic steering to the VNMC
    • D、 offloading the processing from the VSG to the flow manager
    • E、 deep packet inspection

    正确答案:A,B

  • 第14题：

    why do you configure GRE in IPV6？


    正确答案: （1）use GRE tunnels to carry ipv6 traffic over ipv4 network.
    （2）The primary use of GRE tunnels is for stable connections that require regular secure communication between two edge routers or between an edge router and an end system.

  • 第15题：

    If the PFE does not have a route to the destination address of a packet， which action will be taken？（）

    • A、The PFE floods the packet out of all interfaces.
    • B、The PFE drops the packet and sends a destination unreachable notification back to source device.
    • C、The PFE forwards the packet to the routing engine for further processing.
    • D、The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.

    正确答案:B

  • 第16题：

    Which element occurs first during the first-packet-path processing?（）

    • A、destination NAT
    • B、forwarding lookup
    • C、route lookup
    • D、SCREEN options

    正确答案:D

  • 第17题：

    What are two ways that packet fragmentation is handled differently between IPv6 and IPv4?（）

    • A、End hosts determine the path MTU for IPv6.
    • B、End hosts determine the path MTU for IPv4.
    • C、Packet fragmentation occurs at intermediate nodes for IPv4.
    • D、Packet fragmentation occurs at intermediate nodes for IPv6.

    正确答案:A,C

  • 第18题：

    单选题
    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
    解析： 暂无解析

  • 第19题：

    多选题
    Which two statements about JUNOS Software packet handling are correct？（）
    A

    JUNOS Software applies service ALGs only for the first packet of a flow.

    B

    JUNOS Software uses fast-path processing only for the first packet of a flow.

    C

    JUNOS Software performs route and policy lookup only for the first packet of a flow.

    D

    JUNOS Software applies SCREEN options for both first and consecutive packets of a flow.


    正确答案： D,B
    解析： 暂无解析

  • 第20题：

    问答题
    what’s the role of link-address in Ipv6，is it necessary， why？

    正确答案： It is necessary.
    （1）Link-local addresses are used in the neighbor discovery protocol and the stateless autoconfiguration process.
    （2）routing protocols use link-local address as source address to send routing message.
    解析： 暂无解析

  • 第21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22题：

    单选题
    Which ERX Edge Router component is responsible for all packet processing and packet forwarding？（）
    A

    I/O adapter

    B

    line module

    C

    shared memory fabric

    D

    switch route processor


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    What best describes processing delay？（）
    A

    the time required from receipt of the incoming frame， until the frame/packet has been queued for transmission

    B

    the time taken for a single packet to traverse the physical medium from one end to the other

    C

    the time taken to place a frame on the physical medium for transport

    D

    the time spent for a packet to reside in the output queue of a router


    正确答案： B
    解析： 暂无解析

  • 第24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.


    正确答案： A
    解析： 暂无解析

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