[单选题]PPP Echo-Request、Echo-Reply除了握手之外,还具备检测环路的功能,那么它会携带什么配置参数选项?()A . Maximum-Receive-UnitB . Magic-NumberC . Authentication-ProtocolD . Reserved
[名词解释] echo request回声请求
[单选题]向目标发送ICMP回声请求(echo)报文的命令是 (46) 。(46) A. TracertB.ArpC.NslookupD. Netstat
[单选题]Your prompt reply ____.A . will be highly appreciatedB . will be thankedC . is to be thankedD . is appreciated high
[单选题]This bid is()your reply reaching US with in 15 working days from today.A . up toB . subject toC . subjecting toD . subjected to
[单选题]Please reply to our inquiry()your earliest convenience.A . byB . uponC . forD . at
[单选题]A. returnB. replyC. referenceD. response
[单选题][A] respond[B] return[C] retort[D] reply
[单选题]Reply from220.181.12.218:bytes=32time=65msTTL=55,上述结果中显示发送的数据包的生存时间是().A . 32B . 65C . 55D . 1