|
What does Call Admission Control require the client to send in order to reserve the bandwidth?
2 s( c* |4 s/ g: p1 x( Q; RA. SIP flow information5 D) A- E6 Z4 h+ G- |: X! Q
B. Wi-Fi multimedia6 w z' }, ]8 z+ x2 `/ s
C. traffic specification
7 C- u- H6 ?- ?+ E8 SD. VoIP media session awareness
: V4 z& d+ {' A$ Y' k- e% g `( {5 G O! ?
0 f+ P% B% [0 O+ X! c- s, G2 s
" R. s' n* U& y) ~% x0 h2 B5 jWhat is the primary effect of the spanning-tree portfast command?
1 v0 L5 s$ d& E8 GA. It enables BPDU messages8 V5 F0 S# h1 M5 m9 ?0 L1 E' t
B. It minimizes spanning-tree convergence time6 {) w$ ]; ]0 B' p9 U* ?( X) i) o
C. It immediately puts the port into the forwarding state when the switch is reloaded7 G) y# T' W3 s+ C7 y( N
D. It immediately enables the port in the listening state' K' I) _& c' j" A
) Z! r/ s6 L# ?8 Q% Q6 S& q* w
8 q0 H q8 F( C! b
/ d1 h1 F7 \& H. fWhat would be the preferred way to implement a loopless switch network where there are 1500
) g: j- X0 ]8 Y" _defined VLANs and it is necessary to load the shared traffic through two main aggregation points
1 i1 E G% d+ M, I! N" abased on the VLAN identifier?' B8 C8 J: r; F( J$ T0 |' O
A. 802.1D& z: R3 e9 ?3 I) f- G. d! `
B. 802.1s2 f# w. b. d+ O% T0 @& {% p. n
C. 802.1W
5 Q% [0 q6 Z9 U6 D7 `D. 802.1AE
P$ X' m, _% y4 W$ {8 a9 x0 m8 O( x
7 H+ e/ x% F( |1 _) i& ~" U( T8 `5 K% n E, {9 p
During deployment, a network engineer notices that voice traffic is not being tagged correctly as it
) e1 C* ^4 Q1 H o! }traverses the network. Which COS to DSCP map must be modified to ensure that voice traffic is
) j! O: Y) {& X6 Atreated properly?( n; T* S; K' m* U) [
A. COS of 5 to DSCP 461 P+ j0 m7 K# W0 N1 q" V7 X
B. COS of 7 to DSCP 48 v" ^( \. n, {/ O
C. COS of 6 to DSCP 46' j# _' k; v0 r# [) I- G* I* F
D. COS of 3 to DSCP of 26
+ j o6 ~6 f$ U! `- d% Y2 I% d% Q
" y& r4 o* x2 c: E% i2 O$ d1 O2 T. Y6 k4 C
: h% B) }( q$ B+ m' t) M4 J# n2 mWhich IPv6 migration method relies on dynamic tunnels that use the 2002::/16 reserved address
# z1 h# R5 s* [$ ^& f/ X1 i; [space?% x5 {; N8 U4 W0 K+ v
A. GRE
2 f& H: X# R. TB. 6RD
' F, k# W- s* q9 u, \. x! l. xC. 6to4
4 J4 F7 V9 R$ Z rD. ISATAP6 C/ z+ w H- P5 t7 q6 ?& `* u
2 k/ s: `' |3 \6 z% T( m& R" i
1 a- p& W/ q2 q. b) P! o" M( {5 U8 E2 M
' C$ [' m: n. {2 oWhich two statements about IP SLA are true? (Choose two)
1 k7 [3 f+ o; o* ~/ g2 }A. It uses NetFlow for passive traffic monitoring& K( \& D/ {' e$ o5 O$ X# P
B. It can measure MOS
( g/ s$ N- m% A6 D7 }8 E1 gC. The IP SLA responder is a component in the source Cisco device+ v! R, b% L7 r: B4 I
D. It is Layer 2 transport-independent correct
1 Q m' N; w a; x; ME. It uses active traffic monitoring correct
% l5 B7 U! C1 oF. SNMP access is not supported- b) u# b9 n9 S( T
Answer: D,E5 B0 q) Q! Z6 h9 W5 ?
5 H# Q" X/ G) i
; W- ^# t" c" _) s: xWhich two statements about VRRP are true? (Choose two)0 h/ S. X5 J; B8 T% r+ T; o1 F
A. It supports both MD5 and SHA1 authentication.
& v% ~) `% t( A* }( D8 O$ I% tB. It is assigned multicast address 224.0.0.9.; G8 T- a5 D* [3 w# r f- T0 [1 N, C
C. Three versions of the VRRP protocol have been defined.
' h8 ?) l4 Z; CD. It is assigned multicast address 224.0.0.8.6 Y, t/ t! P8 w: U- m0 ?
E. The TTL for VRRP packets must be 255.
) S- Y8 i! R( R2 N/ X# r/ K @& ~F. Its IP address number is 115.
* s t3 t. Y# A* [* p. }, |/ [! m* t+ |
+ N% q- ^8 K" S: y
# u$ o) I$ [9 l; C- AWhich two statements about EIGRP load balancing are true? (Choose two)
" D. B2 m6 i. M, R0 k3 UA. Cisco Express Forwarding is required to load-balance across interfaces# w: T) f/ T# p2 q* A
B. A path can be used for load balancing only if it is a feasible successor& `6 o' L5 i* X0 l$ m* F
C. EIGRP supports unequal-cost paths by default
) ]3 n2 _4 ?- A' [# y/ [5 w( bD. Any path in the EIGRP topology table can be used for unequal-cost load balancing! Z0 z. `8 C4 a# E) @
E. EIGRP supports 6 unequal-cost paths
- P- w3 [7 a2 f& T' D) s% ?
5 j7 O' N& ^; c5 I; }2 u$ W! r& t, n
2 J5 E' M7 `3 s/ u7 l: Z: O
) e' b, @( v* L: y4 s" Y. @考过的朋友可以验证下。QQ: 15092118
. b4 f6 y6 w! V! {6 ^3 n+ d
% M0 @" g; `! M5 q, X7 i+ Z# M7 |8 L# t! B$ A
. o1 u$ F7 l, N- L+ J* z
; ?% ?. l0 Z) ^, |
|
|