The user of Host1 wants to ping the DSL modem/router at 192.168.1.254. Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do()。A.send a unicast ARP packet to the DSL modem/routerB.send unicast ICMP packets to the DSL modem/routerC.

题目
The user of Host1 wants to ping the DSL modem/router at 192.168.1.254. Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do()。

A.send a unicast ARP packet to the DSL modem/router

B.send unicast ICMP packets to the DSL modem/router

C.send Layer 3 broadcast packets to which the DSL modem/router responds

D.send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router


相似考题
更多“The user of Host1 wants to ping the DSL modem/router at 192.168.1.254. Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do()。 ”相关问题
  • 第1题:

    Using the routing table shown in the exhibit, what will be the next-hop IP address used for a destination IP address of 192.168.1.1?()

    A. 10.20.14.130

    B. 10.18.1.1

    C. 10.20.14.131

    D. 10.20.106.10


    参考答案:D

  • 第2题:

    Which two commands will successfully create ping traffic?()

    A. user@router# ping 10.10.10.1

    B. user@router# run ping 10.10.10.1

    C. user@router> ping 10.10.10.1

    D. user@router> request ping 10.10.10.1


    参考答案:B, C

  • 第3题:

    试题一(共20分)

    阅读以下说明,回答问题1至问题4,将解答填入答题纸对应的解答栏内。

    【说明】

    某公司采用代理服务器接入 Internet,网络拓扑结构如图1-1所示。

    【问题1】(10分)

    请填写host1的Internet协议属性参数。

    IP地址: (1) ;

    子网掩码: (2) ;

    默认网关: (3) ;

    其中,host1 默认网关为图中接口 (4) 处的 IP地址。

    【问题2】(4分)

    若host1要访问Internet,根据默认路由,数据报文经IP地址为 (5) 的接口发送到IP

    地址为 (6) 的网关。

    【问题3】(3分)

    与命令route print作用等价的命令为 (7) 。

    (7)备选答案:

    A. netstat -r B. ping C. tracert D. arp –a

    【问题4】(3分)

    接口3的IP地址为 (8) 。


    正确答案:
    试题一分析本题考查局域网的组建及Internet相关协议属性参数配置。【问题1】采用routeprint命令可用以显示主机路由信息。上图中7条记录含义解释如下:(1)默认路由经接口118.165.3.178发往网关118.165.3.190,即目的IP地址不在后面6条路由记录的分组,经本机以太网接口发往网关;(2)目的IP地址在网络118.165.3.128/26中的分组发往接口118.165.3.178,即发往本网段其他主机;(3)目的IP地址为118.165.3.178的分组不外发,直接送本地回路地址127.0.0.1;(4)广播地址在本网段广播;(5)127.0.0.1/8为本地回路地址;(6)224.0.0.0/4为组播地址;(7)255.255.255.255广播地址送到本网段所有主机。从(1)中可以知道主机host1的IP地址为118.165.3.178,网关为118.165.3.190;从(2)中可以知道子网掩码为255.255.255.192,host1默认网关为接口2。【问题2】若host1要访问Internet,其目的IP地址不在上图的后6条记录中,需根据默认路由进行转发,故数据报文经IP地址为118.165.3.178的接口发送到IP地址为118.165.3.190的网关。【问题3】命令netstat用于显示与IP、TCP、UDP和ICMP协议相关的统计数据,一般用于检验本机各端口的网络连接情况。命令格式为:NETSTAT[-a][-b][-e][-n][-o][-pproto][-r][-s][-v][interval]其中部分参数和含义如下:-a:显示所有连接和监听端口。-e:显示以太网统计信息。此选项可以与-s选项组合使用。-n:以数字形式显示地址和端口号。-r:显示路由表。-s:显示按协议统计信息。默认地,显示IP、IPv6、ICMP、ICMPv6、TCP、TCPv6、UDP和UDPv6的统计信息。ping命令用于测试到达目的主机的连通性;tracert用于显示IP数据报到达目的地经过的路由;arp用于确定对应IP地址的网卡物理地址,arp-a或arp-g用于查看高速缓存中的所有项目。故正确答案为A。【问题4】接口3和接口4应在一个网段内。由接口4的IP地址为204.116.172.33/24,可知接口3的IP地址为204.116.172.34。试题一(共15分)【问题1】(10分)(1)118.165.3.178(3分)(2)255.255.255.192(3分)(3)118.165.3.190(2分)(4)2(或接口2)(2分)【问题2】(4分)(5)118.165.3.178(2分)(6)118.165.3.190(2分)【问题3】(3分)(7)A或netstat-r(2分)【问题4】(3分)(8)204.116.172.34(3分)

  • 第4题:

    Refer to the exhibit. A network administrator wants to reduce the number of OSPF routes advertised from Area 1 into Area 2. As the router configuration specialist, what two things would you do to accomplish this goal?()

    A. Enter the configuration on router B1.

    B. Enter the configuration on router B4.

    C. On the same router, enter the Summary - address 10.10.1.0 255.255.255.128 subcommand.

    D. On the same router, enter the Area 1 range 10.10.1.0 255.255.255.128 subcommand.

    E. On the same ro uter, enter the Area 2 range 10.10.1.0 255.255.255.128 subcommand.


    参考答案:A, D

  • 第5题:

    Refer to the exhibit, Host A pings interface S0/0 on router 3, what is the TTL value for that ping?()

    A. 253

    B. 252

    C. 255

    D. 254


    参考答案:A

  • 第6题:

    为保证一定的容错性,为Windows主机上TCP/IP属性配置两个默认网关Host1主机的默认网关是192.168.0.254和192.168.1.254192.168.0.254突然出错,host1将192.168.1.254使用为默认网关当网关192.168.0.254的故障排除并重新上线后,会出现什么现象()

    • A、host1将继续使用192.168.1.254作为其默认网关
    • B、host1将继续使用192.168.0.254作为其默认网关
    • C、host1将从192.168.0.254和192.168.1.254中选择最近的默认网关
    • D、host1将在192.168.0.254和192.168.1.254之间同等地分配网络信息包

    正确答案:A

  • 第7题:

    名为host1的Windows2000DNS客户向其名为DNS01的首选DNS服务器提交了一份名称解析请求DNS01答复该主机不可用如果host1在2分钟内再次提交到同一主机的查询请求,将会怎样()

    • A、该查询请求将会被转交给辅助DNS服务器
    • B、host1将从其高速缓存中得到相同答复
    • C、DNS01将再次尝试解析该名称
    • D、host1将再次从DNS01得到相同的答复

    正确答案:B

  • 第8题:

    The server host1 has been set up as a backup system with the following /etc/exports: How can a second server regularly use this disk space?()

    • A、/usr/sbin/mkfs -s 8G -o nbpi=2048,frag=512 /dev/lv00 -b -l host1
    • B、/usr/sbin/crnfsmnt -d /backups -l /backups host1 -R -X -v -S -b bg
    • C、/usr/sbin/mknfsmnt -f /backups -d /backups -h host1 -a -S -t rw -w bg -g
    • D、/usr/sbin/crfs -v nfs -g vg1 -A yes -p rw -m /backups -a logname=/dev/lv00

    正确答案:C

  • 第9题:

    Which two commands will successfully create ping traffic?()

    • A、user@router# ping 10.10.10.1
    • B、user@router# run ping 10.10.10.1
    • C、user@router> ping 10.10.10.1
    • D、user@router> request ping 10.10.10.1

    正确答案:B,C

  • 第10题:

    单选题
    You have a server that runs Windows Server 2003 Service Pack 2 (SP2). The server connects to the Internet by using a router.You attempt to ping an Internet host and receive the following error message: “Destination host unreachable.”The server’s routing table is configured as shown in the exhibit. (Click the Exhibit button.) You need to ensure that you can access Internet hosts. What should you do?()
    A

    Modify the subnet mask. 

    B

    Modify the default gateway address. 

    C

    Clear the Address Resolution Protocol (ARP) cache. 

    D

    Stop the Windows Firewall/Internet Connection Sharing (ICS) service.


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    You can successfully ping a Bridged 1483 customer's workstation from the local ERX. However, a remote ERX router in your network cannot ping that same device. What could be causing this problem?()
    A

    incorrect DSL network redistribution

    B

    incorrect static host route configuration

    C

    incorrect static customer route configuration

    D

    incorrect default static route configuration on the end user


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    How do you ping from configuration mode?()
    A

    [edit interfaces]   user@router# run ping 1.1.1.1

    B

    [edit interfaces]   user@router# ping 1.1.1.1

    C

    [edit interfaces]   user@router# up ping 1.1.1.1

    D

    [edit interfaces]   user@router# exit ping 1.1.1.1


    正确答案: B
    解析: 暂无解析

  • 第13题:

    You can successfully ping a Bridged 1483 customer‘s workstation from the local ERX. However, a remote ERX router in your network cannot ping that same device.What could be causing this problem?()

    A. incorrect DSL network redistribution

    B. incorrect static host route configuration

    C. incorrect static customer route configuration

    D. incorrect default static route configuration on the end user


    参考答案:A

  • 第14题:

    Which command will resolve the problem shown in the exhibit?()

    A. user@router> request system configuration rescue save

    B. user@router# request system configuration rescue save

    C. user@router> file copy current /config/rescue.conf

    D. user@router# file copy current /config/rescue.conf


    参考答案:A

  • 第15题:

    阅读以下说明,回答问题1至问题4。

    【说明】

    某办公室只有一台主机host1接入Internet,其TCP/IP协议属性如图1-1所示。

    在没有增加公网IP地址的情况下,增加几台主机共享网络连接接入Internet,拓扑结构如图1-2所示,host1 eth0网卡的Internet协议属性如图1-3所示。

    为了保证其他主机能接入Internet,在如图1-4所示的host1 eth1网卡“Internet连接共享”应如何选择?


    正确答案:勾选“允许其他网络用户通过此计算机的Internet连接来连接”复选框。 (答案中有“勾选”两字算正确)
    勾选“允许其他网络用户通过此计算机的Internet连接来连接”复选框。 (答案中有“勾选”两字算正确) 解析:本题采用共享网络连接解决IP紧缺问题,故在改造之后的主机host1的外网卡上应勾选“允许其他网络用户通过此计算机的Internet连接来连接”复选框。

  • 第16题:

    The Testking Central and Remote offices are configured as shown below:The remote router can be successfully pinged from the central office but the remote users can‘t access the server at the central office.Based on the output above, what do you suspect is the cause of this problem?()

    A. The Frame Relay PVC is down.

    B. The IP addressing on the Central/Remote serial link is incorrect.

    C. RIP routing information is not being forwarded.

    D. Frame Relay inverse-ARP is not properly configured.


    参考答案:C

  • 第17题:

    Host1的用户想PING DSL调制解调器/路由器的192.168.1.254,ARP表如下图,Host1会怎么操作?()

    A.发送一个单播ARP包到DSL调制解调器/路由器

    B.发送一个单播ICMP包到DSL调制解调器/路由器

    C.发送三层广播包到响应的DSL调制解调器/路由器

    D.发送一个可以被Host2,the switch,and the DSL modem/router 受到的2层广播帧


    参考答案:B

  • 第18题:

    What is the purpose of configuring the router as a PPPoE client?()

    • A、to provide VPN access over L2TP
    • B、to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity
    • C、for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software
    • D、for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system

    正确答案:C

  • 第19题:

    How do you ping from configuration mode?()

    • A、[edit interfaces]   user@router# run ping 1.1.1.1
    • B、[edit interfaces]   user@router# ping 1.1.1.1
    • C、[edit interfaces]   user@router# up ping 1.1.1.1
    • D、[edit interfaces]   user@router# exit ping 1.1.1.1

    正确答案:A

  • 第20题:

    The server host1 has been set up as a backup system with the following /etc/exports./backups -rw. How can a second server regularly use this disk space?()

    • A、/usr/sbin/mkfs -s 8G -o nbpi=2048,frag=512 /dev/lv00 -b -l host1
    • B、/usr/sbin/crnfsmnt -d /backups -l /backups host1 -R -X -v -S -b bg
    • C、/usr/sbin/mknfsmnt -f /backups -d /backups -h host1 -a -S -t rw -w bg -g
    • D、/usr/sbin/crfs -v nfs -g vg1 -A yes -p rw -m /backups -a logname=/dev/lv00

    正确答案:C

  • 第21题:

    You have an Exchange Server 2010 Edge Transport server.You discover that e-mail delivery to an external SMTP host named Host1 fails.You need to identify which SMTP error codes occur when the delivery to Host1 fails. What should you do?()

    • A、Run the Queue Viewer.
    • B、Enable pipeline tracing.
    • C、Run the Mail Flow Troubleshooter.
    • D、Configure the protocol logging level on the Send connector.

    正确答案:D

  • 第22题:

    单选题
    What is the purpose of configuring the router as a PPPoE client?()
    A

    to provide VPN access over L2TP

    B

    to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity

    C

    for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software

    D

    for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system


    正确答案: C
    解析: 暂无解析

  • 第23题:

    多选题
    Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are().
    A

    Deploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups.

    B

    Teleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths.

    C

    Teleworkers in Group C should change their subscriptions to DSL for deployment consistency.

    D

    Teleworkers in Group A should upgrade their subscription to obtain static IP addresses

    E

    Teleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths.


    正确答案: D,B
    解析: 暂无解析