本帖最后由 leon_lim222 于 2016-3-25 11:59 编辑
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- 不要放AT839q的题目, 不要放105q的题目,不要放farshan.142q的题目 - 只要那些最近有去过考试的, 可以记得的新题
1 r/ i! O) X1 M不要回复,不要谢谢,只要新题目
! L: c- Y7 C1 N- I6 \+ h4 ZWhich three statements are true for anetwork with 10 switches and 126 segments? (Choose three)0 B/ r# ?1 ^( N
A. It has 10 designated ports.8 f5 S" w9 w6 M6 S/ J0 R1 R# m
B. It has 63 designated ports./ ]' }" S+ Z' Y; c- z# q5 p' i$ p
C. It has 9 root ports.
* ]2 y1 D* d" x0 M+ Y5 j% a; J5 }2 UD. It has 10 root ports.
O9 C# M) o4 r [E. It has only one Root Bridge.( X, m7 U; n- \# C& i3 t6 E
F. It has 126 designated ports./ _. b# K5 `1 B- e
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My answer: c, e , f
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0 H3 N3 b4 L/ F- W3 j qIf MPLS label packets are swapped, what happens to the TTL value?* c& Q* f! C0 m% ^" n3 k q
A. It is preserved.
" u, ^0 \; h9 K7 dB. It is set to 255., H' B! C" K0 c
C. It is decremented.( A, j0 \; a0 b4 R4 r* k
D. It is set to zero.6 q& i# i+ ^+ x" u5 i5 M
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My answer: c. g2 H% A8 [; m1 s
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What is the minimum link MTU value for IPv6?# d7 O" e+ j7 S, e- A
A. 68 bytes; o) p" \3 h3 y8 m6 J ]/ w* g
B. 1200 bytes0 r: T0 l4 @+ Y) A }
C. 1500 bytes0 w, R5 J7 y9 _2 u' L8 v" D
D. 1280 bytes+ f/ B% O5 b! k; t; k) Z+ R. X
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My answer: d
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Which routing protocol is used on PE routers to exchange VPNv4 routes?
/ i2 m7 q6 x: oA. EIGRP" r; P' j* }8 m ^. z
B. OSPF
! N0 A2 q) K& C6 w1 a* i( |C. MP-BGP
9 j0 Z% F; U7 a2 ^" lD. OSPFv3
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My answer: c
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; b" b1 k! f) Q; G- b+ E- { (不完整) What is the packet that will be generated by DIS in ISIS routing protocol ? A. CSNP B. LSP C. PSNP
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