思科642-353认证考题

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3.A customer has 80% of the total storage space directly connected to servers. The storage space needs are growing at 50% per year. Given these facts, which solution is recommended?
A: increase in server capacity
1 A0 O3 z9 U. {( ]' m7 jB: server consolidation
2 y, k7 f: {% L  z5 }# RC: storage consolidation
D: storage expansion
E: SAN consolidation
; o. T& x. s6 o) ], e4 h) E, gCorrect Answers: C
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- |( D) {+ l5 U( D) S4.What are three array characteristics that are crucial when planning a SAN design? (Choose three.)

A:fan-in ratio
: ~* b) _7 q) Q6 jB:connection speed
C:embedded cache controller
D:RAID level support
( C' X" p) ]% \E:active/passive controller
, c1 I. P; C# O7 ?Correct Answers: B, C, E

5.A customer has a need to synchronously replicate data from the primary data center to a standby data center that is 30 kilometers away. The customer owns the fiber between the two data centers and uses the link for Gigabit Ethernet connectivity today. The Gigabit Ethernet connection is heavily utilized and generally remains at 90-percent utilization. The customer expects that the replication traffic will require approximately 30 MBps, and is looking for a low-cost solution. Which replication solution would you recommend?
) e% k) x( P# _' B
  J2 ?) g" ^: m7 S7 FA: FCIP
B: CWDM
C: DWDM
D: iSCSI
2 X% k: `9 i- A8 MCorrect Answers: B
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! i, |7 x/ H: V. z* p  w( Q! h1 @4 ?6.Which SFP and media-type combination would be recommended for a high-speed 10-kilometer link between two Cisco MDS switches?
7 D" h9 H, o3 R' Z( ~% s; B; d* I
0 W, C/ z: \' s+ c+ ~( pA: 2-Gbps-SW, LC SFP, 50/125-micron multimode media
2 E( y& _' q+ T* ~; C8 g) ?B: 2-Gbps-SW, LC SFP, 62.5/125-micron multimode media
C: 2-Gbps-LW, LC SFP, 9/125-micron single-mode media
D: 1-Gbps-SW, LC SFP, 50/125-micron multimode media
Correct Answers: C

7.Which technology should be used to provide transparent low latency FC transport across a metropolitan area?

; A+ n$ R0 Q( _A: DWDM
B: FCIP
C: iSCSI
. D- x4 \1 M& dD: iFCP
, q: h+ _1 S3 |3 m9 l3 D# y4 QCorrect Answers: A
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+ }. X4 f3 W  l6 ]8.A customer is considering designing a new storage-network infrastructure to simplify storage network management. The existing solution uses ten 16-port 1-Gbps Fibre Channel switches. Two of the switches are deployed as core switches, and the remaining eight switches are deployed as edge switches. Each edge switch has an ISL to each of the two core switches. The disk array has four 1-Gbps Fibre Channel interfaces. Two interfaces connect to each of the core switches. Each of the 96 servers has a single 1-Gbps Fibre Channel host bus adapter. Which configuration would provide equivalent or better performance while simplifying infrastructure management?
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6 N, |1 s0 p8 b. YA: two Cisco MDS 9140 Fabric Switches
B: two Cisco MDS 9216 Fabric Switches, each with one 32-port Fibre Channel line card
% y9 C9 m# S" tC: one Cisco MDS 9506 Multilayer Director with two 16-port Fibre Channel line cards and two 32-port Fibre Channel line cards
D: one Cisco MDS 9506 Multilayer Director with four 32-port Fibre Channel line cards
% h8 `/ H8 j) s/ B- {' L/ ^Correct Answers: D

9.A customer has 12 hosts, each capable of a maximum burst I/O rate of 75 MBps. The customer wants to connect these hosts to the fabric with a 32-port line card. For optimal performance what is the maximum number of hosts that should be connected to any four-port, host-optimized quad?
* K, U* Q0 q$ v7 U/ U' O# B
" H7 M0 q; p% z* s. n& m* q" HA: one
* o! _9 c+ H9 I' x/ @! Q' |6 qB: two
C: three
D: four
Correct Answers: C
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& y" H6 w' D- I  f* C( c7 j* ]10.What would be a good initial SAN-migration project for a small or medium-sized business that possesses ample WAN bandwidth, but that has an immediate need to reduce spending and to maximize resources?

A: Reduce the WAN bandwidth.
B: Implement FCIP to consolidate all remote SANs.
$ `& e& N7 r' qC: Implement backup consolidation.
D: Centralize the data center and implement an iSCSI solution.
9 U6 y. S" Z" E7 ~/ c7 cCorrect Answers: C

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