问题 7 B0 @9 x! S8 o
Which command can verify Application Layer connectivity between 2 hosts? 9 G% m/ m. K1 F% G5 f; M9 a
A. arp 6 I+ c6 L' ^! Z( H: v( f
B. ping 5 o( z8 g; h6 j' d. K# ^+ a
C. telnet ! m& v0 D- h. ]5 F3 {D traceroute 2 b* [# O) |% B2 C; y" e3 s' I3 x" pE. plp 6 X& o; N }9 @) U" m# J
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？ 9 P% i/ n2 s/ R: z3 k5 p8 b! Q! f
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 . g" q* t1 {3 J& E0 s
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。 6 }1 Y4 i# B K
该问题问题首要考学员呼吁工作的层面，和OSI七层的关系。 6 \" T" d/ A. l" w V正确谜底：C
发表于 2012-8-3 20:20:19
