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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑
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& u! b9 Q+ ?5 r# H n. \; W, J% N题库一些题目，自己查文档验证，存在错漏请大神轻点拍砖5 {, f9 ^4 t1 ?
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QUESTION 3358 b0 }5 H7 w3 ]2 |9 i2 Y
A question about interface gi 0/1 being inerrdisable and how do you find the
5 D# ?, A1 F/ G8 J2 c' v( J2 u+ Ureason for it being disabled
9 m; b9 e) A" rA. show interfaces g0/1 status% u* K' b8 } P7 v+ r) k3 m
B. show run interface g0/1* s5 U- o# l2 B. @
C. show ip int brief* ^; U) ~ u) e; Z
D. show log/ b- A' C2 h$ E7 Z, l$ T. ?
Correct Answer: D% D$ M) T, U5 S" N; d
Answer Should Be: AD7 R3 ~) ^) V: V1 A/ F! M8 ]- n+ T1 O
http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc12
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1 A1 c4 _0 m+ Q; BQUESTION 333' \- s: B( g8 O) `, a3 N/ K
A question about EtherChannel compatibilitymodes. (Choose two.)
: `9 q0 T, M. d8 ^A. passive-passive* b& T. p: h" M; Q' d% k0 j0 t
B. active-active4 e% E& c2 g% d
C. desirable-desirable
/ b5 {- w9 X3 h! J2 G1 o5 mD. active-passive v7 q/ @: x% b* z# F# `) p: d
E. active-desirable
) s2 V3 v. a! T k/ J( g2 f5 q* JCorrect Answer: CD
k2 j/ \8 N( K# ?" b$ PAnswer Should Be: BCD
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/ r9 U+ q6 ]4 {% z) H5 T& yQUESTION 271 --similar with 327) v& [0 Z: W% l# d
Question about voice VLAN.+ d$ X5 G! ?- ?. Y6 c6 x; g6 z9 ]
A. Disabled by default
0 [7 O; R4 c. ]% @' E& IB. Enters on untrusted port$ M7 J( q" P1 x
C. Default CoS value of 5 for untagged.....9 O7 V0 N: F7 M! {+ R
D. Needs manual enable of portfast.
; u( G h, k5 {* p! }! N& S3 jCorrect Answer: A
* h6 {- L3 w4 v. NAnswer Should Be: AC
. c& k' z4 w- A, Z6 @; `the phone sends voice traffic with Layer 3 IP precedence andLayer 2 class of service (CoS) values, which are both set to 5 by default.
& [! [; b$ \7 X2 \7 K5 FThe voice VLAN feature is disabled by default.* V) D& g2 j1 C# g7 N
When the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.9 h) U8 P. |/ y9 R1 B W [! d5 t
The CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic., m! V. R& W2 x: }
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp10338484 ~+ s6 t5 P8 E& k
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发表于 2017-6-22 17:21:58
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