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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) t( t! p1 C* j3 C/ B. e( K
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Which two statements about PAP and CHAP authentication are true? (Choose two)
1 _% M# R- H4 W3 _& X$ i6 zA. PAP uses a challenge string from the server to the client.+ L. n, e6 ^' k4 B
B. CHAP uses a challenge string from the server to the client.# t* p; f# C4 X, F8 A5 H6 l( m1 H
C. PAP can query a TACACS+ server to verify access credentials
; ^7 C& k4 Z/ u" ~* O# HD. PAP requires the client to supply a username and optional password
: P. y( ]) G1 j( ?E. CHAP requires the client to supply a username and optional password& c5 ?0 G- Q- m7 T' Z4 s
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% B) c$ g3 ~: q) O4 t! v7 v. J
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/ Y; C$ ^, r% E0 b- ]' \ D1 CWhat from the following can cause an issue for URPF?6 N. |! W! h# {: H/ q- s
OR/ ~7 V$ r1 v9 x8 ~! G0 N
Reasons why urpf may fail:1 b1 t& O8 f o& u0 x. f
A. Assymetric routing
: E+ t6 [, m0 D! q- O V. r, U% sB. Cef not enabled1 B2 q" i5 n% i" r
C. Urpf not applied to the traffic source
6 \5 \+ n# v1 r' w3 D) QD. If it is usedas ingress filtering q$ ?; f5 E" G4 ] i! |2 p
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?. ~/ [+ c% Q3 I& Q7 f# h
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Which command do you enter to filter only routing updates that are sent through interface
/ l D! v" o4 g) H$ w8 PGigabitEthemet0/0?
! ` c/ h4 ?8 ^ c# ]" t& w% _A. R1(config-if)#passive-interface GigabitEthemet0/0% l0 Q, O- h7 k* j# [% X' T
B. R1(config-router)#no passive-interface GigabitHthemet0/0* s/ l( R7 p7 E. v+ n, k" U" B2 M6 U! Z
C. R1config-router)#passrve-interface GigabitEthemet0/0
/ T8 |, s/ N! o7 a" O7 s( w% h! MD. R1(conffg-router)passive-interface default
1 v/ I- q5 Q& S5 o( bE. R1(config-if)#passive-interface default
. I7 `& d4 l; T! ?4 T- JF. R1(config-router)#distribute-list 1 GigabitEthemet0/0 out
% W1 Q Y; @+ ?$ K8 u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?8 g9 Q2 N" q1 b+ u0 r2 S
; O4 w: A J* v* u9 E* v$ RQ107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
! P+ r5 ?: w( R% o0 A6 l* g, @ip dhcp relay information check -> Verify relay information option (in forwarded BOOTREPLY); z) A4 a- c' {+ q; i
3 c4 D% i7 s c1 Pip 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 interfaces0 w5 K0 @1 @8 L' {' D2 n
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ip dhcp relay information policy -> Define reforwarding rules (for a DHCP relay agent)' s- j8 A r9 u4 N; s
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ip dhcp relay information subscriber-id -> enable a service provider t add a unique ID( U9 _! x6 J+ S
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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 0 d3 \5 l& u$ t2 j
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