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助理工程师
 
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因為近日題庫有變更了,但考試已經報了也不能取消(再不考NA快到期了),因此先準備了這兩份,有些問題向各位請教
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Q311
7 q H1 b. k4 o, s8 xWhich two statements about PAP and CHAP authentication are true? (Choose two)% @& n6 Q8 k' y- |, o4 f
A. PAP uses a challenge string from the server to the client.
, b1 z, l0 n$ wB. CHAP uses a challenge string from the server to the client.
' @4 N# }$ @6 {" _2 l: h6 k7 O% M9 H/ CC. PAP can query a TACACS+ server to verify access credentials, u1 N3 M5 N( v
D. PAP requires the client to supply a username and optional password9 ^4 Y2 n: F% j+ Q
E. CHAP requires the client to supply a username and optional password
$ z# x7 Y# W4 ~, J4 Q% c題庫給的答案是BE,但E看起來不太合理...除非是選項的後段文字有誤?另有些地方查到答案是BC
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What from the following can cause an issue for URPF?8 @/ d3 U: |( u/ F6 _) o
OR
9 T- y. ~( ?( T: [- I- ^Reasons why urpf may fail:# S `4 p. v, ?/ x( ^% g
A. Assymetric routing0 @% |' E5 d$ a( b6 N n
B. Cef not enabled3 V: ?( O! m$ _9 y5 A) [: a
C. Urpf not applied to the traffic source! ~: Z" J; a5 _* f' C: f) A
D. If it is usedas ingress filtering; s/ Y( S& b" Z: i; ^
題庫答案是A,但是B的CEF不是uRPF啟動的必要條件嗎? 是否應該是A跟B?
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8 {. i: f3 y4 Y; l7 |Which command do you enter to filter only routing updates that are sent through interface: M1 w: I/ i* K
GigabitEthemet0/0?7 j. Z5 N( |# _1 F1 o/ Y- W! l
A. R1(config-if)#passive-interface GigabitEthemet0/0
* p* O4 X! B. P' U* C; YB. R1(config-router)#no passive-interface GigabitHthemet0/0' c! x, W8 W; i1 P
C. R1config-router)#passrve-interface GigabitEthemet0/0& `% A5 e0 J$ E/ ^8 s, U0 x( Z8 g/ V# r% F
D. R1(conffg-router)passive-interface default
2 D) L2 o# Y5 ]# E9 p3 pE. R1(config-if)#passive-interface default
0 V: d ^8 a4 J; _' E! r* iF. R1(config-router)#distribute-list 1 GigabitEthemet0/0 out: J5 p" h g8 \, F. w& `3 i
題庫答案是F,但選項裡的"out好像擺錯位置",正確應該要在1跟 G0/0之間,可能是打字錯誤?
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Q107拖圖題,關於ip dhcp relay information 的各種指令,查了一下正確解答應該如下,有錯請指正
9 r6 T: ?+ r' N8 l, O I' Bip dhcp relay information check -> Verify relay information option (in forwarded BOOTREPLY)* i* V! m. @% K2 R# v
$ c" b/ M6 h: Tip dhcp relay information option -> add sub option and the remote ID sub option
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ip dhcp relay information -> configured in global configuration mode applies to all interfaces4 ^) _( C0 z3 x( H- u' F
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ip dhcp relay information policy -> Define reforwarding rules (for a DHCP relay agent)
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/ e- u5 O: ^' _) ` w" \6 Mip dhcp relay information subscriber-id -> enable a service provider t add a unique ID6 U l/ F4 s4 u: \1 j5 l
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) t$ c$ T1 |+ a, e( c' g% p' A p5 q提出來跟各位討論一下,免得新題多舊題又把握不了,得不償失
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