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[考试试题] OracleDBA数据库结构试题选(1)

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发表于 2012-8-4 14:01:27 | 显示全部楼层 |阅读模式
q. 1 : physical disk resources in an oracle database are  & s, H* E+ H/ @* N
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  1. control files  
: n/ I# j- c6 s7 `" k& T+ o  2. redo log files  6 Q: b# U; X7 p& H! [$ y
  3. data files  
0 m% |! F# O% g/ A. m: l, m( j0 `/ r  4. all of the above  
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  q. 2 : what is a schema  
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  1. a physical organization of objects in the database  9 B. c7 Y" u+ z5 Q* h, d
  2. a logical organization of objects in the database  7 o! A1 K8 I! ]3 a; d
  3. a scheme of indexing  
2 N, q8 `4 ~5 L9 z0 J' w9 Y* o  4. none of the above  
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  q. 3 : an oracle instance is  9 W& d; x4 y) s" g# [7 @, S/ \
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  1. oracle memory structures  + H/ N' k' C; F' k; i. q4 C6 G
  2. oracle i/o structures  0 z* n7 ]5 x+ F& D& L& B$ `
  3. oracle background processes    K' k% `6 d5 q1 `( Y; i  R& E
  4. all of the above  ) a7 W7 W( n# P9 }6 x- k" W9 v
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  4  
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- V) `( X; D1 [* u# i. j( \5 H, Z  q. 4 : the sga consists of the following items  
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) I# v9 p' p/ m9 d$ O# J  1. buffer cache  
& ], J8 |! X  q. b! P+ K) U, [  2. shared pool  
" |& l0 p% f& d) H3 W( K; I/ V  3. redo log buffer  % C2 ^. C$ `* Q) o! F4 a
  4. all of the above  : Q% d2 H5 i0 W" |
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  4  
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  q. 5 : the area that stores the blocks recently used by sql statements is called  
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/ R& {& U% {, j# y+ R* I+ u# V2 o  1. shared pool  
3 [: @: `5 _( o( [  2. buffer cache  
2 C5 R/ q& n5 W& n5 j& j  3. pga  
3 J+ F1 y/ F6 O2 M$ e) d  4. uga
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 楼主| 发表于 2012-8-4 14:01:28 | 显示全部楼层

OracleDBA数据库结构试题选(1)

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  q. 6 : which of the following is not a background server process in an oracle server  
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5 t, U7 i, k  H+ I5 |  1. db writer  ! B& A. ]' K. q
  2. db reader  & c9 P' D) e5 j
  3. log writer  
6 [4 J. [/ W8 L; S0 k( z  4. smon  
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, ?+ r! A: F1 M% V# w- s  2  
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+ R) z, }: k( [# h2 J+ Y: o  q. 7 : which of the following is a valid background server processes in oracle  
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  1. archiver  4 A& O; \( F  ?0 a& Q; p' `
  2. lgwr ( log writer )  5 z7 t+ `9 A1 L  Q
  3. dbwr ( dbwriter )  * g# Q9 Q8 J( r9 n/ Z0 y; e2 H
  4. all of the above  & ~( a% B+ s! H/ K

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  q. 8 : the process that writes the modified blocks to the data files is  8 W/ J6 V- A& F! s

9 S: A4 I9 V' B" ~9 k0 f( |  1. dbwr  2 o9 e/ F/ n4 n9 J9 [
  2. lgwr  # e# o% L4 K% S. v( @
  3. pmon  
, S0 A1 H" R! a5 N  v  4. smon  5 K( W, z- @( m' G% r
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  1 : oracle does not modify the data in data file. once the server process makes a change in the memory, dbwr writes the modified blocks back to disk.  7 I1 W* p. ?! i% {7 E

4 O, H/ E6 _; k& l+ I  q. 9 : the process that records information about the changes made by all transactions that commit is  
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  [7 t: n; h7 _3 l  1. dbwr  
& I2 Z& D. H2 Z* x$ F  2. smon  
$ a$ V7 |! S4 B0 [+ a( J. t  3. ckpt  - i; G* H& N5 `
  4. none of the above  
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  4 : lgwr process records the information about changes to database  
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  q. 10 : oracle does not consider a transaction committed until  & G( t! Z: m4 T9 F6 T- m
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  1. the data is written back to the disk by dbwr  / `* s: l9 I7 u5 q# s" p7 w( U
  2. the lgwr successfully writes the changes to redo    a$ k& S+ I0 d+ l7 F1 q
  3. pmon process commits the process changes  
* w7 v( j( u% f: T  4. smon process writes the data</p>
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