参考答案和解析
参考答案:A
更多“What command verifies connectivity between two hosts by sending and receiving ICMP echo messages?() ”相关问题
  • 第1题:

    The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two)

    A.ARP

    B.CDP

    C.DHCP

    D.DNS

    E.ICMP


    正确答案:AE
    解析:Explanation:ARPfindsthehardwareaddressofahostfromaknownIPaddress.Here'showitworks:whenIPhasadatagramtosend,itmustinform.aNetworkAccessprotocol,suchasEthernetorTokenRing,ofthedestination'shardwareaddressonthelocalnetwork.(Ithasalreadybeeninformedbyupper-layerprotocolsofthedestination'sIPaddress.)IfIPdoesn'tfindthedestinationhost'shardwareaddressintheARPcache,itusesARPtofindthisinformation.ICMPworksattheNetworklayerandisusedbyIPformanydifferentservices.ICMPisamanagementprotocolandmessagingserviceproviderforIP.ItsmessagesarecarriedasIPdatagrams.RFC1256isanannextoICMP,whichaffordshosts'extendedcapabilityindiscoveringroutestogateways.Periodically,routeradvertisementsareannouncedoverthenetwork,reportingIPaddressesfortherouter'snetworkinterfaces.Hostslistenforthesenetworkinfomercialstoacquirerouteinformation.Aroutersolicitationisarequestforimmediateadvertisementsandmaybesentbyahostwhenitstartsup.

  • 第2题:

    Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN?()

    A.ping address

    B.tracert address

    C.traceroute address

    D.arp address


    参考答案:A

  • 第3题:

    What command verifies connectivity between two hosts by sending and receiving ICMP echo messages?()

    • A、ping
    • B、tracert
    • C、netstat
    • D、show cdp neighbors detail
    • E、show ip route
    • F、traceroute

    正确答案:A

  • 第4题:

    Which of the following are the BEST tools to test connectivity between two hosts?()

    • A、netstat
    • B、nslookup
    • C、ipconfig
    • D、traceroute
    • E、pathping

    正确答案:D,E

  • 第5题:

    Which of the following answers are correct characteristics of microsegmentation, in the context of a Local Area Network (LAN)?()

    • A、Dedicated paths between sending and receiving hosts are established.
    • B、Multiple subnetwork broadcast addresses are created.
    • C、Multiple ARP tables are needed.
    • D、The decrease in the number of collision domains.
    • E、Broadcast domains are enhanced.
    • F、Additional bandwidth is used to connect hosts.

    正确答案:A,F

  • 第6题:

    When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful.What is the next thing that should be checked?()

    • A、Verify that the EIGRP hello and hold timers match exactly.
    • B、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.
    • C、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.
    • D、Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.

    正确答案:D

  • 第7题:

    What is the correct command to display the current working directory?()

    • A、echo $PWD
    • B、echo $pwd
    • C、echo $CWD
    • D、echo $cwd

    正确答案:A

  • 第8题:

    单选题
    What command verifies connectivity between two hosts by sending and receiving ICMP echo messages?()
    A

    ping

    B

    tracert

    C

    netstat

    D

    show cdp neighbors detail

    E

    show ip route

    F

    traceroute


    正确答案: B
    解析: 暂无解析

  • 第9题:

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?()
    A

    Some quer y or reply packets are lost between the routers.

    B

    The neighboring router starts receiving route updates from this router.

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).

    D

    Th e neighboring router stops receiving ACK packets from this router.


    正确答案: C,D
    解析: 暂无解析

  • 第10题:

    单选题
    Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN?()
    A

    ping address

    B

    tracert address

    C

    traceroute address

    D

    arp address


    正确答案: D
    解析: 暂无解析

  • 第11题:

    多选题
    Which of the following answers are correct characteristics of microsegmentation, in the context of a Local Area Network (LAN)?()
    A

    Dedicated paths between sending and receiving hosts are established.

    B

    Multiple subnetwork broadcast addresses are created.

    C

    Multiple ARP tables are needed.

    D

    The decrease in the number of collision domains.

    E

    Broadcast domains are enhanced.

    F

    Additional bandwidth is used to connect hosts.


    正确答案: C,D
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following routing components is used for sending messages to other SMTP hosts?()
    A

    Routing group

    B

    Send connector

    C

    DNS

    D

    Delivery agent


    正确答案: D
    解析: 暂无解析

  • 第13题:

    What kind of message does a PING send out to test connectivity?()

    A. ICMP echo request

    B. Information interrupt request

    C. Timestamp reply

    D. Source quench

    E. None of the above


    参考答案:A

  • 第14题:

    The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?()

    A.Authentication needs to be changed to PAP for both routers.

    B.Serial IP addresses of routers are not on the same subnet.

    C.Username/password is incorrectly configured.

    D.Router names are incorrectly configured.


    参考答案:C

  • 第15题:

    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?()

    • A、Some quer y or reply packets are lost between the routers.
    • B、The neighboring router starts receiving route updates from this router.
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).
    • D、Th e neighboring router stops receiving ACK packets from this router.

    正确答案:A,C

  • 第16题:

    What kind of message does a PING send out to test connectivity?()

    • A、ICMP echo request
    • B、Information interrupt request
    • C、Timestamp reply
    • D、Source quench
    • E、None of the above

    正确答案:A

  • 第17题:

    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes?()

    • A、Some query or reply packets are lost between the routers
    • B、The neighboring router starts receiving route updates from this router
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link)
    • D、The neighboring router stops receiving ACK packets from this router

    正确答案:A,C

  • 第18题:

    Which of the following commands verifies connectivity between two hosts?()

    • A、chkntfs
    • B、dxdiag
    • C、tracert
    • D、ipconfig
    • E、ping

    正确答案:C,E

  • 第19题:

    单选题
    You have just configured the network interface on systemA . The following information is  From systemB, you test the network connectivity by sending ICMP ECHO_REQUEST packets to  systemA. The following message is displayed: no answer from systemA  What is most likely the problem?()
    A

     The interface is not plumbed.

    B

     The interface is not configured.

    C

     The interface does not have valid routes configured.

    D

     The interface is not marked as


    正确答案: B
    解析: 暂无解析

  • 第20题:

    多选题
    Which of the following commands verifies connectivity between two hosts?()
    A

     chkntfs

    B

     dxdiag

    C

     tracert

    D

     ipconfig

    E

     ping


    正确答案: C,E
    解析: 暂无解析

  • 第21题:

    多选题
    Which of the following are the BEST tools to test connectivity between two hosts?()
    A

    netstat

    B

    nslookup

    C

    ipconfig

    D

    traceroute

    E

    pathping


    正确答案: C,D
    解析: 暂无解析

  • 第22题:

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes?()
    A

    Some query or reply packets are lost between the routers

    B

    The neighboring router starts receiving route updates from this router

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link)

    D

    The neighboring router stops receiving ACK packets from this router


    正确答案: A,C
    解析: 暂无解析

  • 第23题:

    单选题
    The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?()
    A

    Authentication needs to be changed to PAP for both routers.

    B

    Serial IP addresses of routers are not on the same subnet.

    C

    Username/password is incorrectly configured.

    D

    Router names are incorrectly configured.


    正确答案: D
    解析: 暂无解析