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最新E20-001拿出来和朋友分享一下 * \0 _2 D- A, N. K* v' D: }
1. Data is being replicated from site A to site B using disk buffering to create extended distance consistent& J& f+ `8 b$ [
point in time copies every hour. In the event of a site failure at A, what is the maximum amount of data that$ s* U0 u* Y! n
will be missing at site B?
* _! B9 \' U7 C; H4 ]A. 1 hour+ P; }" Y8 E7 g6 O
B. 2 hours. ^' s4 Q7 f7 c: u
C. 3 hours
4 |* ?4 i" V0 T1 B/ S8 @D. 4 hours
$ N' @, z" R1 R3 M" x; v% PAnswer: B( K6 _5 I. n' d( F) w
2. What is a remote replication solution for EMC CLARiiON storage systems? F' f1 ^3 W) K+ w6 |
A. MirrorView/A
5 W- M) F+ C5 P* qB. SnapView
" H/ q R& h. L, q pC. SRDF/AR, n1 C4 k/ S6 n" B7 O
D. TimeFinder, D1 u, H3 Q6 N$ ^/ P# _
Answer: A
* E! l) H1 c$ ~3. Which represents a common implementation of a storage network with limited scalability?
7 ?; p8 x! Z( vA. CSMA/CD* l! P1 P2 ~" c. e' Y' A2 j9 Y
B. Fibre Channel Arbitrated Loop0 s$ v# O8 @" l1 c* Y
C. Store and Forward
+ k' q9 ?+ W J4 A% s/ i5 jD. Switched Fabric( s w; P _) H' U8 q( ^6 Y! t
Answer: B
/ Y h5 Z# w8 V3 z8 T, o ]4. Click on the Exhibit button. Identify the E Port and Edge switch in the SAN Core/Edge exhibit.
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KillTest' [) M( z3 ^3 }3 }' f
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A. 1 and 6& k% {3 |: j, n, R% r2 g. y
B. 4 and 5 Q/ r2 a& L# {* \
C. 7 and 5
/ G4 @; N6 r8 X% oD. 6 and 3- c$ t! X& O" f: Q0 R
Answer: A, N. Z$ q, Y4 n% d1 U
5. What is the process that writes physical address information to a disk?
$ k: L! l7 Z2 ?A. Concatenating
$ ^7 J) _1 |& u3 t0 b! fB. Formatting
H( K8 v k _4 w' @8 z, g| English | Chinese(Traditional) | Chinese(Simplified) | 4 _5 o! Y1 w Y& z3 |) m) F$ D
KillTest
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7 G/ P. X5 U0 qC. Partitioning: j9 J/ o3 Q2 ?, n/ h
D. Striping
7 T" L5 Q/ q# N4 M( l1 A, {6 WAnswer: B3 k- b% [1 k# w! r C5 X
6. The Recovery Point Objective (RPO) of a company is 4 hours. Which statement is true in the event of a
# E0 Y& d$ K. e; W$ {6 Vdisaster?, k2 B5 X7 N; v$ m1 H' q2 m+ A; ~
A. Must be able to restart their network within 4 hours
2 R4 n- L3 E: h# D/ k( AB. Must be able to restart their servers within 4 hours
! M% a3 D3 L p0 ?% Z+ X- W2 u$ }C. Must be able to resume production within 4 hours7 ^1 a& _5 t- `. Y5 A, T+ x
D. No more than 4 hours of production data can be lost. f/ _* i/ A+ N1 i
Answer: D
0 {7 M: @, {3 q7. Which technology is designed for storage of fixed content data?- c3 R6 C) d/ ?# z! m/ W
A. CAS+ \$ G2 v" H9 Z
B. DAS% w, f4 V" e1 d; r+ Q) _
C. NAS
0 p1 ^1 m+ i8 m" s& |" ED. SAN
4 L% @' J0 S( j' cAnswer: A
; E5 A" I4 |" s+ ~9 g. J1 _8. In SAN, if the primary concern is cabling flexibility, what method of zoning should be employed?9 _2 K) _, u& [; l( E- U/ \1 D
A. Hard Zoning
) G+ G) I7 w" O$ J' rB. Mixed Zoning
X E* S- @+ g3 B" ^( ]0 o& x- iC. Port Zoning2 f* Q# y/ n" A) C+ h2 x
D. WWN Zoning
^* p+ K6 O7 b8 H% zAnswer: D" Y3 p$ L( C2 `' Y$ L
9. A disk has Cylinder Head Sector (CHS) values of 1000, 4 and 25. What address range will be used for
# A4 |( c: |$ A( y3 Q Pthe Logical Block Address (LBA) values for this disk?& z$ `- I4 | Y& U. Z; c0 I
A. 0 49,999
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B. 0 99,999
" d P( x* I9 m3 ~! w; F* EC. 1 50,0000 ^3 a# J1 _! p( k# M5 \) H
D. 1 100,0007 H) C- a) j8 L
Answer: B
( b3 `# g/ }8 H* O10. Which key requirement of the Data Center infrastructure addresses the concern of data on storage
# ~4 h3 @6 V5 ?% w* p$ a0 R4 R# y6 osystems being accessible 24X7?
/ h3 D" D; t* nA. Availability
5 K+ e% N7 t5 r8 gB. Manageability
; D/ T) N) |+ ~C. Performance. q4 F6 \2 a% n3 @! y9 O) B
D. Scalability. {: X( I! n1 f: W+ g k2 B8 S
Answer: A `& f8 V4 h# I9 y* G5 L
11. What is the protocol used by a Windows client to communicate with a NAS device?$ o/ F- J6 _0 c' d
A. CIFS( i7 X3 \) j" @# ]8 G6 y
B. FCP8 t# v" s/ F# d* `
C. NFS) I# _. v( k3 h; V! [, ^6 _4 m D1 I; |
D. SCSI% h. N2 `" g8 u' c) E. V
Answer: A1 v4 r/ g! h# J( f2 r! r
12. What are two parts of cache?8 Z$ i5 r/ P& y
A. Bitmap store and dirty store+ \; P1 y0 C& N' @0 R
B. Data store and bitmap store
( E# }& `( j3 V! N; N G# Z7 eC. Data store and tag RAM
: J% O. c' ?: H% F7 z t4 z3 lD. Tag RAM and dirty store* @) H6 Y1 Y* H$ w! j& G
Answer: C' @" u# F5 q+ ?, x
13. Which Data Center element stores customer and product information when the server is connected to
% Y+ \8 y7 E5 Oan array?
/ }0 @& [! V9 f4 U$ _A. Application" _) T) \% `* W
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B. Database
0 ?+ N# `. i6 K0 |( ~) d b* _C. Server# ]5 Q$ E- x( I3 |
D. Storage Array, z$ K- F- |, J# d! b: s! ?
Answer: B; V9 _; L: I; \# J6 z
14. What do you monitor as part of server performance?
# r# B8 R& [9 TA. Filesystem utilization
( N: M) q! Q! MB. HBA status
, I; ~6 x/ C" W" B+ x! {* @# u N$ XC. Memory utilization
: `# { Y* X8 @ W5 ^+ ID. Power supply status
) A# ]9 E. M9 f3 K9 nAnswer: C
' A" @- P- c, g9 K% L) M) p. W15. What is the name of the drive subassembly containing the platters and R/W heads?
2 _1 y: V" e9 Y1 @9 T5 `: i# hA. ATA& s, {/ C* X( k, e: l: o6 E
B. HBA5 n0 E1 D( r: H* J4 F9 ~
C. HDA* |* i: K+ p# S; ^# ]
D. IDE
) a6 G. r% {3 { O! o+ S3 [Answer: C- B/ k( X: |. i
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发表于 2009-6-3 14:20:44
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