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本帖最后由 爱恨交加 于 2016-12-9 11:01 编辑 2 k2 {8 X: g* C' [
$ M: Y7 s! X& S+ f$ d4 IPASS截图我就不放了,现做以下分享$ R2 }# c; y; G
继5月26日400-101fail之后的又一次挑战,今天终于pass了,面对着思科的各种变题,本以为我不在持续继续参加考试;上次本以为笔试fail之后就不在考思科了,可作为一名刚刚毕业的专业生,不得不考一个还算可以的证书;现在工作在某个不知名小公司,每天和PC打交道,确实厌倦了这种生活,别的的就不说了, 希望一下题目对大家有帮助。
, ?, ~% e P1 `4 E. \特别感谢在463904693群内得到大家的帮助,虽然有部分新题,但是我还是由衷的感谢,有兴趣的话大家也可以进去。: R9 `- D9 V5 R- E- l
拖图有个这样的,我按前边编号写的;; d6 z/ i8 I1 X6 }' d" ]. s
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1、What are the two BFD modes?4 V) p8 T; K; m7 L6 C( o( t" }
active
- h3 T/ r% g2 ~3 Z( | S" Y8 lasynchronous
( Y6 o5 x+ [5 ]! T; Fpassive
2 m( x# ~* D( v: j9 _2 d. qestablished
* {+ Z* m% \) d9 _4 H* ^( edemand
& ^9 }( k0 {# Vsynchronous
+ }9 d" a9 s1 o8 m. P8 e2、In a simple MPLS L3VPN, which two tasks are performed by the PE router?
0 f6 X. O9 I9 m- k8 t |- _It establishes pseudo wires with other PEs.
$ S1 |# C, W6 _$ N E2 g) B, a) [It exchanges VPNv4 and VPNv6 routes with CE Devices.
b6 J) L" c/ `$ KIt assigns labels to routes in individual VPNs.) O% T) l. n/ E+ a
It forwards labeled packets to CE devices.; H0 p X6 S3 T' u. d/ R
It exchanges VPNv4 or VPNv6 route with other PE routers.
" F4 H# {! ]6 D& l. D' C3 h) L3、Which two statements about PPP PAP are true?(Choose two)
- l: J6 u' T. @! j1 k; [It requires two-way authentication.
: p, O9 \4 f7 I; CIt can protect against playback attacks.
& L$ v- E8 L* Z# ?6 L8 [" I0 ^It is supported only on synchronous interfaces.
" B: G) } r7 [% s1 ZIt is vulnerable to trial-and error attacks.
f) q! i! G j5 f" KLogin attempts are controlled by the remote node.
( }3 f& ~# S; i# z" \& S8 y4、For what reason might you choose to use an SVTI interface instead of a crypto map on a tunnel interface?
* Y4 s( v, z4 P3 E* ySVTIs support dynamic routing protocols without GRE headers.! u. n7 _6 E; D, r- k( e
SVTIs can support multiple IPSec SAs.' G0 [& c, {& H( M; g
SVTIs can carry non-IP traffic.
) r, V( X% X* OSVTIs support CEF-switched traffic shaping.
$ T5 M$ W ]% `3 e- I( @' u5、Which cache aggregation scheme is supported by NetFlow ToS-based router aggregation?% e3 q1 y5 [8 U0 ^! h
prefix-port; b. x! d( L! K I! w3 y7 |& v. s$ X
AS
# `7 a3 u3 l9 P2 mprotocol port
! c6 V i* ~4 i$ G' Z1 Vdestination prefix6 i9 _7 q, e6 l9 w1 B
6、What are the two variants of NTPv4? (Choose two.) 6 g( y5 L' w6 ]/ O* V
client/server" ]5 H) V( s% Z* s9 T
broadcast
6 \# a1 o) I& g2 [2 G8 L1 Wmulticast
+ n" {$ }+ r/ L1 C: F" o+ Yasymmetric - B, T# w) l* T5 r) ~
unicast 8 p6 U C9 Q/ D/ L4 y
7、Which feature can you implement to reduce global synchronization?* T4 y3 S9 S! D7 y3 B/ k
WRED) i0 d+ ~, c/ G6 X: `5 [8 ]0 H( I
marking+ |. Z0 c1 J0 u. V( h& Z
policing
8 ?4 h H$ y( W# i7 wNBAR" N* B7 _! |& Q
8、What is the default behavior for a manual summary route when a component route of the summary disappears?
+ S" C2 \" i, X H% [Regardless of the metric if the componnent route,the metric of the summary is unchanged in order to keep stability." {3 M' S* c8 g. o( D0 r9 m
If the component route previously had the best composite metric ,the same summary metric is retained for stability.
; t2 Y* q- _0 Y- ]% _7 ~( [7 BIf the component route previously had the best composite metric ,the metric of the summary changes to the next-best composite metric.: o, a/ j4 b- _1 g! ]; ~; M* H
if the component route previously did not have the best composite metric,the summary metric is updated,and updates are sent to peers.' g X5 a1 w2 S2 Y, d0 F
9、Which two statements about the command distance bgp 90 60 120 are true? (Choose two.)
- ]3 \- S) |) pImplementing the command is a Cisco best practice.# P, @: |/ J' B. ?7 a, k5 ^
The external distance it sets is preferred over the internal distance.* h' {3 k8 G: A4 M, O
The internal distance it sets is preferred over the external distance.
' R6 Y$ @* _ d& F4 B- VThe local distance it sets may conflict with the EIGRP administrative distance.: n. T4 \9 \$ _; O/ F+ W4 c- S
The internal distance it sets may conflict with the EIGRP administrative distance.! Y% c- s. T, e
The local distance it sets may conflict with the RIP administrative distance.3 j% w+ t# o3 q. _
10、Which three elements compose a network entity title? (Choose three.): j! I$ i8 ?! u! R2 R9 K
area ID
/ K5 Z# ?; z( H5 ddomain ID
3 Q: W. C5 F8 `0 H0 Isystem ID
4 l' g6 v! ?+ b M! iNSAP selector6 P7 Y/ u( s: |$ @& n' }* u
MAC address5 b2 O* x2 f# @% x) Y
IP address# F6 Y: V' |. {5 `+ m
11、Which statement about NAT64 is true?
6 N" M' a2 F' AIt uses one-to-one mapping between IPv6 addresses and IPv4 addresses.
! z3 M6 @7 g! @/ b" yIt requires static address mapping between IPv6 addresses and IPv4 addresses.
N4 ^0 s ^* @% \% T3 i+ N8 [It can be used to translate an IPv6 network to another IPv6 network.
4 C; v- C9 n6 C, sIt can be configured for stateless and stateful translation.
4 f8 T. L' ?+ K4 S1 {12、带图片的选择题8 \+ l. A+ y9 v9 V, ^
大概意思就是运行了bgp 65500,nei了LocalSite 其中有三条route-map 10 、15 、30
3 W7 p3 S0 V k) V8 R这题要选AS 65500 和BGP路由 T: \) g$ a% i1 p, j
13、
2 _/ ^; I, K- w3 C这题是给出一张图,是show bfd nei det 1( T# U# Z3 Z" q$ U2 T% g( M
Nei的地址是10网段的 LD/RD LD是1 RD是一个很大的数字,状态都是UP ,INT 是 g0/3' f s6 O8 @7 G% n% Y
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这题要选:BGP on RT1 has negotiated …… its peer,+ i1 Y2 {! G- k2 l- m2 S1 q
还有一个选项是:BFD is active for BGP on RT1
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/ C7 U K8 n! i4 n, x1 M; l! M% t最后,真心感谢 群内所有人,希望大家都早点PASS!!!$ F& o# \2 \/ P) p6 `: H6 s: E9 Q
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