4-6 400-201 PASS

earts

800多分通过，错了11题左右，有2道新题。感觉185里有部分答案需要在继续推敲一下。
0 @# C/ V3 ~; E' ^; g
& [0 W0 e3 g5 r) ^

earts

新题
186. Retaining LDP session if one links fail out of two for two neighbors.
A. MPLS LDP targeted-hello accept
B. MPLS LDP sync
* P: Q* Z7 h! y/ F. x( AC. MPLS IP
) Q! p1 A9 I2 F5 ?D. MPLS LDP autoconfig
3 `) b' B5 V+ M- ]* V6 F
' k, a- n" g- n3 M* U  T& M  Twhat is the port number of L2TPv3 protocol to be allowed on the firewall.
; b* S# d- I' a$ A5 b7 _0 cA .Per tcp host x.x.x.x any eq 1701
5 @5 Q7 V+ ?4 S7 z7 }3 F. V7 O" U; sB .Per udp host x.x.x.x any eq 1701
) u8 g0 a4 v! X/ qC .Per udp any host x.x.x.x eq 1701
D .Per tcp any host x.x.x.x eq 1701

earts

老题
这条选三个，注释的答案没了
Which are the four key design requirements for mobile IP backhaul?
(Choose four)
  |; {  r9 J3 i9 ]! rA. network timing distribution and recovery
& E9 f1 L) Z2 X4 w2 i" S  O/ |B. MPLS-enabled interface
####C. Layer 2 Tunneling
0 c7 H2 T( o  M$ F. f1 h. N( x# n6 ~* LD. X2 interface turning point
2 ^( F5 p: {0 P#####E.  DiffServ QoS
( q! x% X7 Z5 ^2 b* q' A7 GF. bandwidth
G. native IPv6 support
1 k3 e3 e/ h7 }" J" T8 ZH. mandatory Layer 3 access up to a cell site
Answer: A,G,H

earts

老题
这条选三个，注释的答案没了
: I& u2 A7 p7 S: L' N: ?Which are the four key design requirements for mobile IP backhaul?
8 i' K; c9 x: ?! a9 f9 D" B. X(Choose four)
# N1 m0 a+ p2 i, B  ~. TA. network timing distribution and recovery
B. MPLS-enabled interface
8 A. }  l# P% N! a. b& \' @3 I####C. Layer 2 Tunneling
D. X2 interface turning point
. V% P2 h2 W- s. Y- T7 ^& q* N#####E.  DiffServ QoS
, K- H8 m' N3 F8 GF. bandwidth
8 R1 }# M3 _- U# A  eG. native IPv6 support
6 z7 h7 q4 {, O4 l" kH. mandatory Layer 3 access up to a cell site

earts

QUESTION NO: 94
' q. f+ U8 |( o# hTwo Tier 2 Service Providers are using a Tier 1 Service Provider for transport. MPLS is required
between the Tier 2 Service Providers for label switching. In this CSC solution, which label stack
is correct?
A. original IP packet, MPLS CSC transport label, MPLS VPN label, and MPLS Tier 2 transport label
B. original IP packet, MPLS Tier 2 transport label, MPLS VPN label, and MPLS CSC transport label
  A' S* Q) i" X, D" @C. original IP packet, MPLS VPN label, MPLS Tier 2 transport label, and MPLS CSC transport label
6 {. N6 ]+ Z: Q: A" O7 ^D. original IP packet, MPLS Tier 2 transport label, MPLS CSC transport label, and MPLS VPN label
7 c9 J' ?# K7 }2 m2 X. hE. original IP packet, MPLS VPN label, MPLS CSC transport label, and MPLS Tier 2 transport label

earts

QUESTION NO: 70
SSO was configured on a Cisco ASR 1006 Router by using two RPs. When the main RP failed, a
service disruption occurred. What are two reasons that the SSO did not work? (Choose two.)
# E8 G3 L+ W; @A. The standby RP has a different DRAM configuration than the primary RP. B.
6 ~# |! M! S! mHSRP and NSF are not configured.
5 ^8 f: n; [& \5 G9 rC. The ESP that is installed in the Cisco ASR 1006 Router does not support SSO.
D. The standby RP was not ready to switch over when the primary RP failed.
E. The standby RP has a different IOS version than the primary RP.

earts

QoS is applied on an outgoing interface as shown below:
policy-map COS-OUT
9 l4 I( q% p0 C) Oclass DATA
random-detect dscp-based
  q- Y) W" z% J& Drandom-detect exponential-weighting-constant 9
/ c, H' ~9 R  |4 m9 [random-detect dscp 26 39 117 30
5 I2 N' N; H; Arandom-detect dscp 28 19 35 20
# d! O% ^/ D( {* d( c; @What will the QoS result be for egress traffic with an average queue depth of 40 that is marked
) |2 y, ^! t7 X4 f- f$ }8 J6 Kas DSCP AF32?
5 _' Z# M; e; i$ I1 }+ RA. Traffic will be dropped with a random rate less than the one defined by MPD.
# J! Q$ |+ C7 E" JB. All traffic will be tail dropped.
$ p- a4 T4 ~1 p- n  ~8 aC. Traffic will be dropped with a rate of 1 packet out of 20.
D. Traffic will be dropped with a rate of 1 packet out of 30.

earts

QUESTION NO: 54
5 V, p% @; O/ W; n( }. iAn R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two exit
points: through R2 and R3 routers. Which two options must be configured on the R1 router to
$ N4 x# H5 H5 yachieve this goal? (Choose two.)
2 [3 c5 c" p9 f7 @7 j- J! ~* Q+ VA. The BGP maximum path feature must be configured on R1.
B. The BGP PIC core must be enabled on R1
! W1 o& _% U# ?5 \& `; oC. Weight, local-pref, MED, as-path length, origin, and the BGP next-hop IGP cost must be the
same for the R2 and R3 IBGP updates to R1.
( i2 w& h% ~! \+ U: lD. The BGP Link Bandwidth feature must be applied on R1.
E. BGP extended community exchange must be enabled between IBGP neighbors.
: k* |6 H7 f) M% e6 \Answer: A, C

bajie1

Thanks a lot

染指蓝调

楼主给的这几个185题库里的答案是有错误的吗。明天去考，希望能过~

earts

染指蓝调 发表于 2016-4-6 16:40
楼主给的这几个185题库里的答案是有错误的吗。明天去考，希望能过~

按照185的考能过

earts

染指蓝调 发表于 2016-4-6 16:40
! t8 m, _' i) }2 X3 u9 t* f楼主给的这几个185题库里的答案是有错误的吗。明天去考，希望能过~

" ~* d9 x/ l3 N+ w7 W* R. B按照185的考能过

markleung

What will the QoS result be for egress traffic with an average queue depth of 40 that is marked as DSCP AF32?
8 P8 F. Z( g7 B9 V4 {3 `A. Traffic will be dropped with a random rate less than the one defined by MPD
  P% A6 U3 @; _% [7 E  o( BB. All traffic will be tail dropped.
& u" a9 C1 g/ t( s3 ~: q/ ]C. Traffic will be dropped with a rate of 1 packet out of 20.
D. Traffic will be dropped with a rate of 1 packet out of 30.
+ k' s2 ?8 @# f  K  j
其实这个得分答案是哪个啊   有些说B有些说C

markleung

What will the QoS result be for egress traffic with an average queue depth of 40 that is marked as DSCP AF32?
* c1 j" ^0 z/ @0 H/ @A. Traffic will be dropped with a random rate less than the one defined by MPD
3 ~, X# @+ W: V3 i/ s  ^8 KB. All traffic will be tail dropped.
2 V- T+ b+ ?, K3 Q% d; xC. Traffic will be dropped with a rate of 1 packet out of 20.
. o3 b0 J( p% VD. Traffic will be dropped with a rate of 1 packet out of 30.
% c, M9 a& C1 }8 i) h4 R+ T% n6 J
# X: p8 y/ I; D1 w2 q3 \) T其实这个得分答案是哪个啊   有些说B有些说C