问题 7 A' M2 b8 V: _# j, o& s
Which command can verify Application Layer connectivity between 2 hosts? }" E! f9 {: r5 S8 F7 O2 r
A. arp ) K2 x) M4 i6 I" @! ?' Z
B. ping " c7 S( S: C+ k! x# M' l/ G
C. telnet 3 }' d/ ]/ i3 B- s j1 y
D traceroute ; C0 @; b. i$ x) i }$ c
E. plp 5 y* a& Z4 n( [1 E. r- c3 W' t问题问题意思:以下呼吁傍边阿谁是在应用财揭捉证两个主机的联通性的呼吁? 6 B- P( C- |9 r
Telnet tests the Application layer, ping test the Network layer.Telnet is an application used to remotely configure a device. If telnet is succesfful you know that full 7 layer stack on the sending and receiving host are configured correctly and are in working order $ ?4 P1 F1 r% n9 j* }
因为telnet呼吁是工作在应用层,ping呼吁是工作在收集层的,telnet是应用于远程节制设备的,所以如不美观能telnet成功的话,这就证了然两台主机或设备已经联通了,在联通性膳缦沔已经没有问题了。 3 d& U6 l: l3 |: v/ q
该问题问题首要考学员呼吁工作的层面,和OSI七层的关系。 5 k0 g9 L; k4 U- f4 M正确谜底:C