问题 8 A* s5 W' L o. w: Y
Which command can verify Application Layer connectivity between 2 hosts? " H2 k/ @" |+ ]( I
A. arp 5 j! z7 D$ Y# m0 V6 l1 NB. ping " ]3 D5 F5 G2 {( C9 |4 fC. telnet 6 N8 L6 O L8 X5 \; I! B( E; ND traceroute - j* c1 Q, f4 ^" D5 B r5 R. @E. plp ; T1 X' @& g2 ?# p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？ 5 Q* m2 J) X' m1 STelnet 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 ; N# D8 x- @! k! B) b; a3 c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。 1 c: b& D) g* {' P4 h) w- x- B. b; S, { 该问题问题首要考学员呼吁工作的层面，和OSI七层的关系。 . J8 u) n9 a5 C n- |
正确谜底：C
发表于 2012-8-3 20:20:19
