killtest E20-001 最新题库（朋友刚过了）

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最新E20-001拿出来和朋友分享一下  
& U7 G/ T2 ^+ w2 b) t! J/ ?  r1. Data is being replicated from site A to site B using disk buffering to create extended distance consistent
# x5 c- L3 K0 k# opoint in time copies every hour. In the event of a site failure at A, what is the maximum amount of data that
# T( c; t0 v9 s. k# \/ ^% d* iwill be missing at site B?
A. 1 hour
B. 2 hours
: `7 x$ a  v/ o% O( e' _2 k! WC. 3 hours
D. 4 hours
Answer: B
2. What is a remote replication solution for EMC CLARiiON storage systems?
/ Q4 l; T: @* x8 T# JA. MirrorView/A
% J- i+ j. H+ i7 a: EB. SnapView
C. SRDF/AR
0 y/ B  I+ ]! A2 hD. TimeFinder
" a$ y7 D- p3 Z" LAnswer: A
3. Which represents a common implementation of a storage network with limited scalability?
3 C0 c" C& A4 R% z7 ~% g$ pA. CSMA/CD
B. Fibre Channel Arbitrated Loop
C. Store and Forward
D. Switched Fabric
Answer: B
/ |6 g, ~* D, d$ p4. Click on the Exhibit button. Identify the E Port and Edge switch in the SAN Core/Edge exhibit.
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& G- s) ^- K7 `8 ZA. 1 and 6
. L( c4 _9 Q1 B$ EB. 4 and 5
) I% r7 k. a. t7 EC. 7 and 5
0 B6 e  F. L# h. R' V, d/ TD. 6 and 3
  }- ?* q; ^; mAnswer: A
) M' F: y5 W. w* F" G+ {5. What is the process that writes physical address information to a disk?
/ Y) E  r$ H" A9 A1 rA. Concatenating
: W6 _  E1 v. z/ f% _B. Formatting
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C. Partitioning
D. Striping
Answer: B
6. The Recovery Point Objective (RPO) of a company is 4 hours. Which statement is true in the event of a
disaster?
3 G9 ~4 L, X5 [6 t% o, l  t% z, XA. Must be able to restart their network within 4 hours
B. Must be able to restart their servers within 4 hours
C. Must be able to resume production within 4 hours
D. No more than 4 hours of production data can be lost
- O- l3 s0 q( ?4 \: {3 ~Answer: D
. o8 K' r& \2 X& i5 C0 `7. Which technology is designed for storage of fixed content data?
; j; k" r/ K* i, V4 |A. CAS
( B; U# d* a  e6 b4 E" SB. DAS
' u* q; [. o0 S+ h3 C: a+ BC. NAS
D. SAN
4 q& Y5 T$ E% RAnswer: A
8. In SAN, if the primary concern is cabling flexibility, what method of zoning should be employed?
9 q, p3 [9 l! y# W6 XA. Hard Zoning
B. Mixed Zoning
C. Port Zoning
3 V+ k" K$ |" a% G- oD. WWN Zoning
Answer: D
9 p; Q" r, F7 ^9. A disk has Cylinder Head Sector (CHS) values of 1000, 4 and 25. What address range will be used for
* f" \* A  I6 fthe Logical Block Address (LBA) values for this disk?
- i. n5 Z* N$ G+ Y0 n. TA. 0 49,999
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, a% u! t  ?+ A7 ~8 lB. 0 99,999
C. 1 50,000
D. 1 100,000
, }! ^) O+ {. mAnswer: B
10. Which key requirement of the Data Center infrastructure addresses the concern of data on storage
, ?; V* p% F9 t' @systems being accessible 24X7?
# h8 d+ `& j) ]) s+ v' ^3 `A. Availability
B. Manageability
C. Performance
D. Scalability
Answer: A
# k$ B- |- {' J  `# \. C11. What is the protocol used by a Windows client to communicate with a NAS device?
' }. i1 E8 q7 OA. CIFS
B. FCP
- }! M" G/ P/ a+ C5 o1 f4 DC. NFS
D. SCSI
, `# f, T; F" L7 K) c# }  C) `Answer: A
12. What are two parts of cache?
A. Bitmap store and dirty store
8 X* F" u& Y4 M, V3 V8 a7 I" E; LB. Data store and bitmap store
' c) D8 N% p9 {- n/ ZC. Data store and tag RAM
1 g/ ]  X. W4 ?- v( j- }D. Tag RAM and dirty store
; A5 l2 `9 z4 ^1 U$ O5 o: q+ lAnswer: C
13. Which Data Center element stores customer and product information when the server is connected to
an array?
& N# e, B. X1 r6 o5 C% O7 U( b- kA. Application
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* ^* q& {; y* K2 ZB. Database
C. Server
D. Storage Array
Answer: B
14. What do you monitor as part of server performance?
/ F: Z# h) H7 k5 o1 VA. Filesystem utilization
B. HBA status
; A0 x# Y% v9 \% W) s$ t! n# s) NC. Memory utilization
9 D. `* u) U, d% t1 C! DD. Power supply status
Answer: C
7 t& h& h* e/ j* P9 W2 q15. What is the name of the drive subassembly containing the platters and R/W heads?
A. ATA
' O7 t# x+ _. g; DB. HBA
C. HDA
D. IDE
  o% [; o; l2 n% eAnswer: C
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