在ping的测试中，提示“Request timed out”的准确意思是（）。A、重新询问的时间出离了B、无应答C、时间不能返回D、请求超时
在ping的测试中，提示“Request timed out”的准确意思是（）。
- A、重新询问的时间出离了
- B、无应答
- C、时间不能返回
- D、请求超时
相关考题：
使用ping命令时,出现下列()信息,表明本地系统没有到达远程系统的路由。 A.unknown hostB.Destination host unreachableC.NO answerD.timed out
While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the 7-layer OSI model does the problem most likely exist?A. The data link layerB. The application layerC. The protocol layerD. The access layerE. The session layerF. The network layerG. None of the above
某单位网络结构如图1-1所示，网络中所有路由器均使用RIP协议。图1-1在网络部署完成后进行如下测试：1.在主机host101上对Router2的F0/0口及网络1的host1进行了连通性测试，结果如图1-2和图1-3所示。host101ping 192.168.0.1Pinging 192.168.0.1 with 32 bytes of data:Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Ping statistics for 192.168.0.1：Packets: Sent = 4，Received = 4，Lost = 0 （0% loss），Approximate round trip times in milli-seconds：Minimum = 1ms，Maximum = 1ms，Average = 1ms图1-2host101ping 192.168.0.2Pinging 192.168.0.2 with 32 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 192.168.0.2:Packets: Sent = 4, Received = 0， Lost = 4 （100% loss），图1-32.在主机host3上对网络1进行了连通性测试，结果如图1-4所示。host13ping 192.168.0.2Pinging 192.168.0.1 with 32 bytes of data:Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Reply from 192.168.0.1: bytes=32 time=1ms TTL=64Ping statistics for 192.168.0.1：Packets: Sent = 4，Received = 4，Lost = 0 （0% loss），Approximate round trip times in milli-seconds：Minimum = 1ms，Maximum = 1ms，Average = 1ms图1-43.查看路由器Router3的路由表，结果如图1-5所示。Router3show ip routeR 192.168.0.0/24 [120/1] via 202.117.112.1， 00:00:24，Serial2/0C 192.168.1.0/24 is directly connected，FastEthemet0/0R 192.168.2.0/24 [120/1] via 202.117.114.1，00:00:01，Serial3/0202.117.112.0/30 is subnetted，1 subnetsC 202.117.112.0 is directly connected，Serial2/0R 202.117.113.0/30 [120/1] via 202.117.112.1，00:00:24，Serial2/0[120/1] via 202.117.114.1，00:00:01，Serial3/0202.117.114.0/30 is subnetted，1 subnetsC 202.117.114.0 is directly connected，Serial3/0图1-5【问题1】（6分）请填写hostl的Internet协议属性参数。IP地址： （1）子网掩码： （2）默认网关： （3）
某工作站无法访问域名为www.test.com Web服务器，此时使用ping命令对该服务器的IP地址进行测试，发现响应正常。但是对服务器域名进行测试时出现“Request timed out”信息。由此可初步判定出现该问题的原因是(67)。A．物理连通性故障B．域名解析故障C．路由配置故障D．服务器网卡故障
参加下图，出现默认网关Ping 不通的情况，出问题的协议层是（ ）。 C: \ping 10.10.10.1 Pinging 10.10.10.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 10.10.10.1: Packets: Sent=4 ，Received=0，Lost=4 (100% loss)A.物理层B.网络层C.传输层D.应用层
在进行网络连接排错的时候,一种技术员注意到工作站网卡和交换机连接工作站的接口的灯常亮.当在工作站使用PING命令的时候,出现的信息是"Request timed out"那OSI最有可能存在问题()。 A.会话层B.协议层C.数据链路层D.访问层E.网络层F.应用层
在某机器上执行ping的结果如下：Pinging www.aaa.cn[202.117.112.36] with 32 bytes of datarequest time out。request time out。request time out。request time out。造成该现象可能的原因是( )。A.DNS服务器故障B.PC1上TCP/IP协议故障C.遭受了ACL拦截D.PC1上Internet属性参数设置错误
以下为对IP：172.20.1.3进行网络通断测试（PING）命令的结果，表明网络运行状态良好，可以正常传输数据的显示结果为（）A、Reply from 172.20.1.3： bytes=32 time=31ms TTL=61B、Reply from 172.20.1.3：TTL expired in transitC、Request timed outD、Destination Host Unreachable
PING命令输入后出现“Request.timed.out”说明（）A、表示连接成功B、表示在一定时间内未收到目标主机的ICMP回应包，网络可能不通C、表示无法解析主机名，可能DNS有问题D、表示无法找到去往目标主机的路由，路由设置可能存在问题
在登录CTAIS生产机系统，输入用户名和密码后，系统提示“sqlca连接失败：ORA—12535：TNS：operation timed out请确认用户名或口令是否正确！”的错误提示，可能是什么原因？
在进行网络连接排错的时候，一种技术员注意到工作站网卡和交换机连接工作站的接口的灯常亮.当在工作站使用PING命令的时候，出现的信息是"Request timed out"那OSI最有可能存在问题（）。A、会话层B、协议层C、数据链路层D、访问层E、网络层F、应用层
使用ping命令时，出现下列（）信息，表明本地系统没有到达远程系统的路由。A、unknown hostB、Destination host unreachableC、NO answerD、timed out
在Servlet中，下列语句可以正确获取PrintWriter对象的是（） A、PrintWriter out = request.getWriter（）；B、PrintWriter out = request.getPrinteWriter（）；C、PrintWriter out = response.getWriter（）；D、PrintWriter out = responce.getPrinteWriter（）；
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）A、The data link layerB、The application layerC、The access layerD、The session layerE、The network layer
While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。A、the session layerB、the protocol layerC、the data link layerD、the access layerE、the network layerF、the application layer
A system administrator received the following message while trying to ssh to a server： connection timed out.The administrator pinged the server and had no response. The administrator then pinged the gateway， and was successful. Which tool could the administrator use next to isolate the problem？（）A、routeB、tracerouteC、netstat -nrD、broadcast ping
An administrator is trying to connect to an RSA-II adapter using the default IP address found in the installation manual of 192.168.70.125. The Web browser returns a "page cannot be displayed" message， and a ping returns a "request timed out" message. Which of the following is the most likely cause of the problem？（）A、The RSA II adapter has obtained a DHCP assigned address.B、The RSA II adapter requires independent power to function.C、The Class C IP address space is not being bridged on the network.D、The RSA II adapter needs to be configured using a serial connection.
Windows XP中，常用测试网络通断的PING命令可从以下哪几种方式进入（）A、点击“开始”——“运行”——“打开”，在弹出的窗口中输入PING命令B、点击“所有程序”——“附件”——“命令提示符”，在弹出的窗口中输入PING命令C、点击“开始”——“运行”，输入“cmd”，在弹出的窗口中输入PING命令D、点击“开始”——“附件”——“打开”，在弹出的窗口中输入PING命令
单选题An administrator is trying to connect to an RSA-II adapter using the default IP address found in the installation manual of 192.168.70.125. The Web browser returns a "page cannot be displayed" message， and a ping returns a "request timed out" message. Which of the following is the most likely cause of the problem？（）AThe RSA II adapter has obtained a DHCP assigned address.BThe RSA II adapter requires independent power to function.CThe Class C IP address space is not being bridged on the network.DThe RSA II adapter needs to be configured using a serial connection.
单选题PING命令输入后出现“Request.timed.out”说明（）A表示连接成功B表示在一定时间内未收到目标主机的ICMP回应包，网络可能不通C表示无法解析主机名，可能DNS有问题D表示无法找到去往目标主机的路由，路由设置可能存在问题
单选题在进行网络连接排错的时候，一种技术员注意到工作站网卡和交换机连接工作站的接口的灯常亮.当在工作站使用PING命令的时候，出现的信息是"Request timed out"那OSI最有可能存在问题（）。A会话层B协议层C数据链路层D访问层E网络层F应用层
多选题Windows XP中，常用测试网络通断的PING命令可从以下哪几种方式进入（）A点击“开始”——“运行”——“打开”，在弹出的窗口中输入PING命令B点击“所有程序”——“附件”——“命令提示符”，在弹出的窗口中输入PING命令C点击“开始”——“运行”，输入“cmd”，在弹出的窗口中输入PING命令D点击“开始”——“附件”——“打开”，在弹出的窗口中输入PING命令
单选题While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist?（）Athe session layerBthe protocol layerCthe data link layerDthe access layerEthe network layerFthe application layer
单选题在Servlet中，下列语句可以正确获取PrintWriter对象的是（）APrintWriter out = request.getWriter（）；BPrintWriter out = request.getPrinteWriter（）；CPrintWriter out = response.getWriter（）；DPrintWriter out = responce.getPrinteWriter（）；
单选题如果在一套主机的Windows环境下执行命令Ping www.pku.edu.cn得到下列信息：Pinging www.pku.edu.cn[162.105.131.113]with 32 bytes of data：Request timed out．Request timed out．Request timed out．Request timed out．Ping statistics for 162.105.131.113：Packets：Sent=4，Received=0，Lost=4（100％loss）那么下列结论中无法确定的是（ ）。A为www.pku.edu.cn提供名字解析的服务器工作正常B本机配置的IP地址可用C本机使用的DNS服务器工作正常D本机的网关配置正确