Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） o

题目

Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） of each packet. You can connect the routers directly by point-to-point （ ） or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 （ ） information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet （ ） decision process.

A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting

相似考题

1.阅读下面的短文，回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the router’s network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the router’s routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above，we can see that the router （ ） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （ ） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （ ）.A．is generating B．generate C．is generated D．generates A．forwarding table B．network interfaces C．routing policies D．destination address A．the destination address and network interfaces B．forwarding table and network interfaces C．the destination address and forward table D．routing policies and routing table

2.How does a process description function?A. It describes what an object is like.B. It explains how something works.C. It explains how to perform. a process.

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.Cisco is the leader in the router market space. What basic functions do their routers perform. in a network? (Choose two)A. The microsegmentation of broadcast domainsB. Path selectionC. Packet switchingD. Bridging between LAN segmentsE. Access layer securityF. VLAN membership assignmentG. Application optimization

参考答案和解析
正确答案：B,A,B,D,C
更多“Routers perform the decision process that selects what path a packet takes. These ( ) laye ”相关问题

  • 第1题：

    What is the first CoS process performed when a packet enters a JUNOS device?()

    A.Rewrite Marker

    B.Multifield Classifier

    C.Policing

    D.BA Classifier


    参考答案：D

  • 第2题：

    Routers perform which of the following functions?()

    A. Packet switching

    B. Collision prevention on a LAN segment.

    C. Packet filtering

    D. Broadcast domain enlargement

    E. Broadcast forwarding

    F. Internetwork communication


    参考答案：A, C, F

  • 第3题：

    Routers perform which of the following functions?（）

    • A、Packet switching
    • B、Collision prevention on a LAN segment.
    • C、Packet filtering
    • D、Broadcast domain enlargement
    • E、Broadcast forwarding
    • F、Internetwork communication

    正确答案:A,C,F

  • 第4题：

    What functions do routers perform in a network?（）

    • A、Packet Switching
    • B、Access Layer Security
    • C、Path Selection.
    • D、VLAN Membership Assignment.
    • E、Bridging between LAN segments.
    • F、Micro-segmentation of Broadcast Domains.

    正确答案:A,C

  • 第5题：

    Whichof the following are valid modes of packet switching on most routers？（Choose all thatapply.）（）

    • A、Cisco Express Fonvarding
    • B、FIB switching
    • C、Cache switching
    • D、Optimized switching
    • E、Process switching
    • F、Fast switching

    正确答案:A,E,F

  • 第6题：

    Regarding fast path processing, when does the system perform the policy check?（）

    • A、The policy is determined after the SCREEN options check.
    • B、The policy is determined only during the first packet path, not during fast path.
    • C、The policy is determined after the zone check.
    • D、The policy is determined after the SYN TCP flag.

    正确答案:B

  • 第7题：

    For best packet switching performance with crypto, what is the recommend packet switching path in a Cisco Teleworker Router?（）

    • A、Process Switching
    • B、Silicon Switching 
    • C、Cisco Express Forwarding (CEF) Switching
    • D、Autonomous Switching

    正确答案:C

  • 第8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9题：

    多选题
    Which three options are considered in the spanning-tree decision process？（）
    A

    lowest root bridge ID

    B

    lowest path cost to root bridge

    C

    lowest sender bridge ID

    D

    highest port ID

    E

    highest root bridge ID

    F

    highest path cost to root bridge


    正确答案： A,D
    解析： 暂无解析

  • 第10题：

    多选题
    What functions do routers perform in a network?（）
    A

    packet switching

    B

    access layer security

    C

    path selection

    D

    VLAN membership assignment

    E

    bridging between LAN segments

    F

    microsegmentation of broadcast domains


    正确答案： A,E
    解析： 暂无解析

  • 第11题：

    单选题
    What is the first CoS process performed when a packet enters a JUNOS device?（）
    A

    Rewrite Marker

    B

    Multifield Classifier

    C

    Policing

    D

    BA Classifier


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following is not a characteristic of fast switching？（）
    A

    Fast switching reducesa routers CPU utilization， compared to process switching

    B

    All packets of a flow， except for the first packet， use the information in the fast cache

    C

    It can be enabled with the interface command ip route-cache

    D

    Fast switching uses a fast cache maintained in a router’s control plane

    E

    The fast cache contains information about how traffic from different data flows should beforwarded

    F

    Even though the fast switching is enabled， the first packet of a flow is still process switched


    正确答案： C
    解析： 暂无解析

  • 第13题：

    What is the last CoS process performed prior to a packet leaving a router?()

    A.Rewrite Marker

    B.Multifield Classifier

    C.Policing

    D.BA Classifier


    参考答案：A

  • 第14题：

    What functions do routers perform in a network?()

    A. packet switching

    B. access layer security

    C. path selection

    D. VLAN membership assignment

    E. bridging between LAN segments

    F. microsegmentation of broadcast domains


    参考答案：A, C

  • 第15题：

    What functions do routers perform in a network (Choose two.)（）。

    • A、packet switching
    • B、access layer security
    • C、path selection
    • D、VLAN membership assignment
    • E、bridging between LAN segments
    • F、microsegmentation of broadcast domai

    正确答案:A,C

  • 第16题：

    BGP best route selection process is based on what ？（）

    • A、lowest cost
    • B、highest bandwidth
    • C、lowest hop-count
    • D、path attributes
    • E、lowest delay

    正确答案:D

  • 第17题：

    What is a static packet-filtering firewall used for ？（）

    • A、It validates the fact that a packet is either a connection request or a data packet belonging to a connection
    • B、It evaluates network packets for valid data at the application layer before allowing connections
    • C、It analyzes network traffic at the network and transport protocol layers
    • D、It keeps track of the actual communication process through the use of a state table

    正确答案:C

  • 第18题：

    Which three options are considered in the spanning-tree decision process？（）

    • A、lowest root bridge ID
    • B、lowest path cost to root bridge
    • C、lowest sender bridge ID
    • D、highest port ID
    • E、highest root bridge ID
    • F、highest path cost to root bridge

    正确答案:A,B,C

  • 第19题：

    What functions do routers perform in a network?（）

    • A、packet switching
    • B、access layer security
    • C、path selection
    • D、VLAN membership assignment
    • E、bridging between LAN segments
    • F、microsegmentation of broadcast domains

    正确答案:A,C

  • 第20题：

    单选题
    Regarding fast path processing, when does the system perform the policy check?（）
    A

    The policy is determined after the SCREEN options check.

    B

    The policy is determined only during the first packet path, not during fast path.

    C

    The policy is determined after the zone check.

    D

    The policy is determined after the SYN TCP flag.


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    What is the last CoS process performed prior to a packet leaving a router?（）
    A

    Rewrite Marker

    B

    Multifield Classifier

    C

    Policing

    D

    BA Classifier


    正确答案： B
    解析： 暂无解析

  • 第22题：

    多选题
    What functions do routers perform in a network? (Choose two.)（）
    A

    packet switching

    B

    access layer security

    C

    path selection

    D

    VLAN membership assignment

    E

    bridging between LAN segments

    F

    microsegmentation of broadcast domains


    正确答案： F,C
    解析： 暂无解析

  • 第23题：

    单选题
    For best packet switching performance with crypto, what is the recommend packet switching path in a Cisco Teleworker Router?（）
    A

    Process Switching

    B

    Silicon Switching 

    C

    Cisco Express Forwarding (CEF) Switching

    D

    Autonomous Switching


    正确答案： D
    解析： 暂无解析

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