问题 5 `/ h, B; `- S1 G2 S+ U, {& ]
Which command can verify Application Layer connectivity between 2 hosts? & o# t4 U' m1 \9 Y' G- f
A. arp
& S& J; K$ Z1 Q( w+ h. WB. ping
/ B5 [) s3 X3 ]. c) NC. telnet 1 A; M8 W( P% g1 v2 f& i
D traceroute
8 N5 R+ H! j. yE. plp
! p- e8 s1 |8 T$ ?; d8 O# q6 \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？ 3 c# ^5 M z: V- D, B4 p, I/ ]
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
+ X0 m# c. v. m; @# y! v6 u2 g9 [2 V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。 0 Y4 A1 S& T- R$ \: q3 K& I0 R
该问题问题首要考学员呼吁工作的层面，和OSI七层的关系。 0 U; b% N9 H$ y! k* D6 @
正确谜底：C |
发表于 2012-8-3 20:28:11
