oracle ocp认证考试最新题库052-Oracle.HotCerts.1Z0-052

Oracle.hotcerts.1Z0-052.v2010-04-12.by.saporacle.154q

Passing Score: 660

Time Limit

: 90 min

Exam Name: Oracle Database 11g: Administration I

Exam Code: 1Z0-052

Total Questions: 154

((real test: 78 in 90))

by saporacle

B. The backup performed on Sundays contains all the blocks that have changed since the last level 1

backup.

C. The backup performed on each working day contains all the blocks that have changed since the last

level 0 backup.

D. The backup performed on Monday contains all the blocks that have changed since the level 0 backup,

and every other working day contains all the blocks that have changed since the level 1 backup.

Answer: AD

Section: (none)

Explanation/Reference:

QUESTION 2

A. The database instance is running with manual PGA management.

B. The database instance is running with manual shared memory management.

C. The database instance has the MEMORY_TARGET value set to a nonzero value.

D. All sessions are connected to the database instance in dedicated mode, and no RMAN or parallel query

operations have been performed.

Answer: C

Section: (none)

Explanation/Reference:

QUESTION 3

Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.)

Explanation/Reference:

You have two tables with referential integrity enforced between them. You need to insert data to the child

table first because it is going to be a long transaction and data for the parent table will be available in a later

stage, which can be inserted as part of the same transaction. View the Exhibit to examine the commands

used to create tables. Which action would you take to delay the referential integrity checking until the end of

the transaction?

A. Set the constraint to deferred before starting the transaction.

B. Alter the constraint to NOVALIDATE state before starting the transaction.

C. Enable the resumable mode for the session before starting the transaction.

D. Set the COMMIT_WAIT parameter to FORCE_WAIT for the session before starting the transaction.

LSNRCTL> STOP

What happens to the sessions that are presently connected to the database instance?

A. The sessions are able to perform only queries.

B. The sessions are not affected and continue to function normally.

C. The sessions are terminated and the active transactions are rolled back.

D. The sessions are not allowed to perform any operations till the listener is started.

Answer: B

Section: (none)

Explanation/Reference:

QUESTION 6

B. The rows stay in the table only until the next transaction starts on the table.

C. The rows are visible to all current sessions after the transaction is committed.

D. The rows stay available for subsequent sessions after the transaction is committed.

Answer: A

Section: (none)

Explanation/Reference:

QUESTION 7

In which of the scenarios will the DBA perform recovery? (Choose all that apply.)

A. The alert log file is corrupted.

B. A tablespace is accidentally dropped.

QUESTION 8

Note the following structures in your database server:

1. Extents

2. OS Blocks

3. Tablespace

4. Segments

5. Oracle Data Block

Which option has the correct arrangement of these structures from the smallest to the largest?

A. 2, 5, 1, 4, 3

B. 1, 2, 3, 4, 5

You are working on an instance started using the SPFILE. You want to move the Flash Recovery Area of

your database to a new location. You want the Flashback log files to be stored in the new location. Given

below are the steps to accomplish the task in random order:

1) Shut down the instance.

2) Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value.

3) Execute the ALTER DATABASE FLASHBACK OFF command.

4) Start up the instance and mount the database.

5) Execute the ALTER DATABASE FLASHBACK ON command.

6) Open the database.

Select the correct order in which these tasks need to be performed.

Explanation/Reference:

QUESTION 10

A user, who is authenticated externally, logs in to a remote machine and connects to the database instance.

What action would you take to ensure that a user cannot connect to the database instance by merely

logging in to a remote machine?

A. Set REMOTE_OS_ROLES to FALSE.

B. Set the OS_ROLES parameter to FALSE.

C. Set the REMOTE_OS_AUTHENT parameter to FALSE.

D. Set the REMOTE_LOGIN_PASSWORD_FILE parameter to NONE.

Answer: C

What would be the outcome of this command?

A. The command succeeds only if Automatic Memory Management is not enabled.

B. The command succeeds, but you need to restart the database for changes to take effect.

C. The command returns an error because the size of the redo log buffer cannot be changed dynamically.

D. The parameter value is changed and it comes into effect as soon as space becomes available in the

System Global Area (SGA).

Answer: C

Section: (none)

Explanation/Reference:

QUESTION 12