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The user is trying to execute a SELECT statement. Which of t

题目
单选题
The user is trying to execute a SELECT statement. Which of the following background processes will obtain data from a disk for the user?（）
A

DISPATCHER 

B

USER 

C

SERVER 

D

LGWR 

E

 DBW0

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相似问题和答案

第1题：

The user Sue issues this SQL statement:GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement:GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Reena issues this SQL statement:GRANT SELECT ON sue. EMP TO timber;The user Sue issues this SQL statement:REVOKE select on sue. EMP FROM alice;For which users does the revoke command revoke SELECT privileges on the SUE.EMP table?（）

A. Alice only

B. Alice and Reena

C. Alice, Reena, and Timber

D. Sue, Alice, Reena, and Timber


参考答案：C

第2题：

You are trying to deploy a configuration job to an ios access point using the wlse， but the job fails. Which of the following would cause this failure？（）

  • A、snmp communities
  • B、telnet/ssh user/password
  • C、wlccp credentials
  • D、http user/password

正确答案:B

第3题：

User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, which commands must you execute to enable SCOTT to flash back the transactions?()

A. ALTER DATABASE FLASHBACK ON;

B. GRANT SELECT any transaction TO scott;

C. GRANT EXECUTE ON dbms_flashback TO scott;

D. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;

E. ALTER TABLESPACE undots1 RETENTION GUARANTEE;

F. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS;


参考答案：B, C, D, F

第4题：

Which of the following statements is used to revoke all DML privileges on table EMPLOYEE from user TOM?（）

  • A、REVOKE ALL PRIVILEGES FROM USER tom
  • B、REVOKE ALL ON EMPLOYEE FROM USER tom
  • C、REVOKE EXECUTE ON EMPLOYEE FROM USER tom
  • D、REVOKE PRIVILEGES ON EMPLOYEE FROM USER tom

正确答案:B

第5题：

 You created a custom menu for the Order Entry application. Which step do you perform before attaching the menu module to the form module?（）

  • A、Select file-->Administration-->Convert 
  • B、Select file-->Administration-->Execute 
  • C、Select file-->Administration-->Compile File
  • D、No further step is necessary. 

正确答案:C

第6题：

Which of the following statements is used to revoke all DML privileges on table EMPLOYEE from user TOM?()

A.REVOKE ALL PRIVILEGES FROM USER tom

B.REVOKE ALL ON EMPLOYEE FROM USER tom

C.REVOKE EXECUTE ON EMPLOYEE FROM USER tom

D.REVOKE PRIVILEGES ON EMPLOYEE FROM USER tom


参考答案：B

第7题：

Which information is contained in a AAA authentication method list?（）

  • A、A pointer to the address where a RADIUS server can be located
  • B、A sequential list of user authentication methods
  • C、A description of what a user can execute on a router
  • D、The setup for the authentication phase on a router

正确答案:B

第8题：

The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this? ()

A. GRANT select ON dept TO ALL_ USER;

B. GRANT select ON dept TO ALL;

C. GRANT QUERY ON dept TO ALL_USERS

D. GRANT select ON dept TO PUBLIC;


参考答案：D

第9题：

A remote user is trying to telnet to the production server. The session is getting a timeout error. Which command should the user issue to verify the network connection？（）

  • A、iptrace
  • B、nslookup
  • C、netstat
  • D、traceroute

正确答案:D

第10题：

You work as a database administrator for Supportcenter.cn. Your database is opened inNOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）

  • A、Execute the ALTER DATABASE ARCHIVELOG statement
  • B、Select ARCHIVELOG option in the database control and restart the database to apply the changes.
  • C、Shut down and start the instance， and in the NOMOUNT state execute the ALTER DATABASE ARCHIVELOG statement.
  • D、Shut down and start the instance， mount the database， then execute the ALTER DATABASE ARCHIVELOG statement.

正确答案:B,D

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