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OCP认证考试最新考试题库解析ppt课件

2023-04-29 16页 ppt 78KB 5阅读

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OCP认证考试最新考试题库解析ppt课件2018年OCP 052最新考试题库解析-20180525题库新特点:更加灵活,题库的顺序与考试时的顺序每场都在变化更加考验知识点的掌握,题库答案为二,考试时要求选择最佳一个答案整理:CUUG12018年OCP 052最新考试题库解析-201805251、Which two events always request the LGWRto write?❑A) when LGWR is notified by a serverprocess that performs a Commit or ROLLBACK❑B) Whe...
OCP认证考试最新考试题库解析ppt课件
2018年OCP 052最新考试库解析-20180525题库新特点:更加灵活,题库的顺序与考试时的顺序每场都在变化更加考验知识点的掌握,题库为二,考试时要求选择最佳一个答案整理:CUUG12018年OCP 052最新考库解析-201805251、Which two events always request the LGWRto write?❑A) when LGWR is notified by a serverprocess that performs a Commit or ROLLBACK❑B) When PMON restarts a server process❑C) when DBWn writes dirty buffers❑D) when a log switch occurs❑E) when a checkpoint occursAnswer:CD22018年OCP 052最新考试题库解析-201805252、Examine these commands and their output:SQL> SELECT * FROM emp;ENO ENAME---- -----100 Adam101 AlanSQL> INSERT INTO emp VALUES(102,'Ben");1 row created.SQL> COMMIT;Commit completed.SQL> UPDATE emp SET ename='Bryan' WHERE eno=102;1 row updated.A power failure occurs. The Instance Is restarted and this query Is executed.SQL> SELECT ename FROM emp;What Is the outcome?❑A) Only Adam and Alan are displayed.❑B) Only Adam, Alan, and Bryan are displayed.❑C) Adam, Alan, Ben, and Bryan are displayed.❑D) No rows are returned.❑E) Only Adam, Alan, and Ben are displayed.Answer:E32018年OCP 052最新考试题库解析-201805253、Where Is backup metadata stored for use byRecovery Manager (RMAN)?❑A) In the control file❑B) In the SYSAUX tablespace❑C) in the SPFILE❑D) in the SYSTEM tablespace❑E) In the diagnostic destination fliesAnswer:A42018年OCP 052最新考试题库解析-201805254、Which two can be backed up by using RMAN when adatabase Is open in ARCHIVELOG mode, so that mediarecovery can be performed If required?❑A) control files❑B) password file❑C) pfile❑D) online redo logs❑E) flashback logs❑F) data filesAnswer:AF52018年OCP 052最新考试题库解析-201805255、Your database is using Automatic MemoryManagement.Which two SGA components must be managed manually?❑A) default buffer cache❑B) redo log buffer❑C) large pool❑D) shared pool❑E) keep buffer poolAnswer:BE62018年OCP 052最新考试题库解析-201805256、Which two are true about roles?❑A) A role can be granted a combination of system andobject privileges and other roles.❑B) The CONNECT role Is granted automatically to auser when It Is created.❑C) Roles are owned by SYSTEM.❑D) The RESOURCE role Is granted the CREATE SESSIONprivilege.❑E) A secure application role can be set only by Itsassociated PL/SQL package.Answer:AE72018年OCP 052最新考试题库解析-201805257USER2.SYS executes this command:、USER1 grants SELECT, INSERT, and UPDATE privileges on USER1. EMP toSQL> REVOKE UPDATE ON user1.emp FROM user1;What will be the outcome?❑SELECT,INSERT, Or UPDATE on USER1. EMU.A) It will succeed and only USER2 will be unable to perform❑SELECT,INSERT, Or UPDATE on USER1. EMP.B) It will succeed and only USER1 will be unable to perform❑SELECT, INSERT, or UPDATE on USER1. EMP. 0C) It will succeed but neither USER1 nor USER2 will be able to perform❑D) It will fall because USER1 Is the owner of USER1. EMP.❑INSERT or UPDATE on USER1. EMP, but both will be able to query USER1.EMP).E) It will succeed and neither USER1 nor USER2 will be able to performAnswer:D82018年OCP 052最新考试题库解析-201805258(ADDM)?、Which three are true about the Automatic Database Diagnostic Monitor❑A) Its findings are accessible only by using Oracle Enterprise Manager.❑Oracle's best practices.B) It improves database performance by automatically implementing❑failures.C) It can assist the DBA in diagnosing database instance startup❑package.D) It can be used by executing the PL/SQL procedures in the DBMS_ADDM❑snapshot is created.E) It runs automatically after each Automatic Workload Repository❑F) It provides recommendations to improve database performance.Answer:DEF92018年OCP 052最新考试题库解析-201805259、Examine these components:1. Execution plan for a non-embedded SQL statement2. Local, global, and package variables for a session3. Execution plan for a SQL statement contained In a PL/SQLprogram unit4. Results of executed queries and query fragments S. PL/SQLfunction result setsWhich of these are stored in the shared SQL area?❑A) 1 and 4❑B) 1, 2 and 3❑C) 1 and 3❑D) 1, 3, 4, and 5Answer:C102018年OCP 052最新考试题库解析-2018052510、Examine this LISTENER. ORA file:LISTENER =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP) (HOST = srvl.example.com)(PORT = 1522))) ) )SID LIST LISTENER =(SID LIST =(SID_DESC =(GLOBAL_DBNAME = orcl.example.com)(ORACLE_HOME = /u01/app/oracle/product/11.2.0/dbhome_1)(SID_NAME = orcl)) )How should you configure an additional listener LISTENER2 that listens for the same SID?❑in LISTENER.ORA.A) Add relevant details In DESCRTPTION under the existing LTRTENER with a different port number❑B) Create another configuration file called LISTENER2.ORA with only LISTENER2 details in it.❑C) Add relevant details in SID_LIST_LISTENER under the existing LISTENER in LISTENER. ORA❑D) Add LISTENER2 and its SID_LIST details separately under the name LISTENER2 in LISTENER. ORAAnswer:D112018年OCP 052最新考试题库解析-2018052511、Your database Is open in ARCHIVELOG mode.LOG_ARCHIVE_DEST Is set to Fast Recovery Area (FRA) and it Is100% full when a log switch takes place.No alternative or optional archive destinations are defined.What Is the outcome?❑A) All active sessions are disconnected and theirtransactions rolled back.❑B) The archivelog entries are made in the diagnosticdestination and when space Is available, new archivelogs aregenerated.❑C) No archivelogs are generated.❑D) Obsolete backups are automatically deleted and newarchivelogs are generated.❑E) All active sessions hang until the database administrator(DBA) makes space available In the FRA.Answer:E12SID LIST LISTENER =1 row updated2018年OCP 052最新考试题库解析-20180525(SID_DESC =2018年OCP 052最新考试题库解析-20180525What will be the outcome and why?database Is open in ARCHIVELOG mode, so that media❑D) online redo logsprefixed views.❑in LISTENER.What Is the outcome?user when It Is created.period defined by UNDO_RETENTION.C) It will fail because there is an uncommitted transaction on USER1.Execution plan for a non-embedded SQL statement2018年OCP 052最新考试题库解析-2018052512、Which two are true about data dictionaryviews?❑A) ALL or USER prefixed views display outputthat are subsets of the output from the DBAprefixed data views.❑B) DBA prefixed views are accessible when adatabase is In mount state.❑C) A user may not necessarily be the owner ofall objects that can be viewed by using the ALLprefixed views.❑D) A user can query the DBA prefixed views onlyif they have the SYSDBA privilege❑E) All data dictionary views are prefixed withDBA. Or ALL or USERAnswer:AD132018年OCP 052最新考试题库解析-2018052513DNO that references USER1. DEPT. DNO.、USER1. EMP has a referential Integrity constraint defined on EMP.user1 executes these commands:SQL> UPDATE dept SET 1oc=’UK’ where dno=1;1 row updatedSQL> UPDATE emp SET sal=1000 whore eno=100;1 row updatedSQL> ALTER TABLE dept DROP(dno);What will be the outcome and why?❑on USER1. EMP.A) It will fail because a referential Integrity constraint Is defined❑EMP.B) It will fall because there Is an uncommitted transaction on USER1.❑DEPT.C) It will fail because there is an uncommitted transaction on USER1.❑D) It will execute successfully and drop DEPT. DNO.❑columns.E) It will execute successfully and drop the DEPT. DNO and EMP. DNOAnswer:A142018年OCP 052最新考试题库解析-2018052514、Which two are true about undotablespaces?❑A) They always retain undo for the timeperiod defined by UNDO_RETENTION.❑B) They must have only one data file.❑C) They can be recovered only when anInstance Is In MOUNT state.❑D) Tables can be created In undotablespaces by SYS.❑E) Single-Instance databases can have onlyone active undo tablespace.Answer:CE152018年OCP 052最新考试题库解析-2018052515、Which four are true about the tools used toadminister Oracle databases?❑A) SQL*Plus can be used to create databases.❑B) RMAN can be used to start up OracleInstances.❑C) DBCA can be used to upgrade databases.❑D) The Data Pump utility can be used to loaddata from text files.❑E) SQL*Plus can be used to start up Oracleinstances.❑F) SRVCTL can be used to shut down Oracleinstances.16Answer:ABEF
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