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Oracle Database Administration

Description: Oracle database administration DatabasesOracleOracle
Number of Questions: 15
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Tags: Oracle database administration Databases Oracle
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By which of the following background processes are the contents of redo log buffer transferred periodically from memory to the online redo log files on disk?

  1. Database writer

  2. Stream pool

  3. Log writer

  4. SQL work area

  5. Mounting database


Correct Option: C
Explanation:

The contents of redo log buffer are transferred periodically from memory to the online redo log files on disk by the log writer background process.

Which of the following is composed of one or more datafiles on disks?

  1. Tablespace

  2. Segment

  3. Instance creation

  4. Database

  5. Flash recovery area


Correct Option: A
Explanation:

A tablespace is composed of one more datafiles on disk.

Which of the following caches is managed using the least recently used algorithm?

  1. Data dictionary cache

  2. Private SQL area

  3. Instance creation

  4. SQL work area

  5. Read only


Correct Option: A
Explanation:

This cache is managed using the least recently used algorithm.

Which of the following options of STARTUP command starts up the database using the static non default attribute file to startup the database?

  1. READ ONLY

  2. RECOVER

  3. PFILE

  4. ABORT

  5. Proxy archived log backups


Correct Option: C
Explanation:

This option starts up the database using the static non default attribute file to start up database.

When any changes are made to the database such as updates to data or creating or dropping database objects, the changes are recorded to the which of the following files first?

  1. Proxy archived log backups

  2. Instance creation

  3. Parameter files

  4. Recover

  5. Redo log files


Correct Option: E
Explanation:

When any changes are made to the database such as updates to data or creating or dropping database objects, the changes are recorded to the redo log files first.

By which of the following background processes are the contents of the database buffer cache written to data files on disk?

  1. Log writer

  2. Database writer

  3. Stream pool

  4. User process

  5. Disk topology


Correct Option: B
Explanation:

The contents of the database buffer cache are written to datafiles on disk by the database writer background process.

In which of the following options of SHUTDOWN command does the oracle server wait for all currently connected users to disconnect their session?

  1. IMMEDIATE

  2. ABORT

  3. RECOVER

  4. Mounting the database

  5. NORMAL


Correct Option: E
Explanation:

Using this option, the oracle server waits for all currently connected users to disconnect their sessions.

In which of the following files is the database responsible for validating user credentials?

  1. Parameter file

  2. Instance creation

  3. Proxy archived log backups

  4. Java pool

  5. Password file


Correct Option: E
Explanation:

Here, the database is responsible for validating user credentials.

In which of the following pools are the sizes of the library cache and the data dictionary cache not set individually and automatically determined by the oracle server?

  1. Stream pool

  2. Java pool

  3. SQL work area

  4. Shared pool

  5. Opening the database


Correct Option: D
Explanation:

Here, the sizes of the library cache and the data dictionary cache are not set individually and are automatically determined by the oracle server.

When a user process is terminated abnormally, which of the following background processes cleans up the resources that were held by the user process?

  1. Log writer

  2. User process

  3. Process monitor

  4. SQL work area

  5. Global coordinator


Correct Option: C
Explanation:

In the event when a user process is terminated abnormally, the process monitor background process cleans up the resources that were held by the user process.

Which of the following files contains all the data of the database that the users of the database save and retrieve?

  1. Parameter file

  2. Instance creation

  3. Instance

  4. Segment

  5. Data file


Correct Option: E
Explanation:

The data files in a database contain all of the database data that the users of the database save and retrieve.

Which of the following options of the STARTUP command can be used to abort the running instance and perform a normal startup?

  1. RECOVER

  2. READ ONLY

  3. FORCE

  4. ABORT

  5. Opening the database


Correct Option: C
Explanation:

This option of STARTUP command can be used to abort the running instance and perform a normal startup.

In which of the following options of the SHUTDOWN command does the oracle server automatically roll back all currently active transactions?

  1. ABORT

  2. IMMEDIATE

  3. TRANSACTIONAL

  4. RECOVER

  5. Proxy archived log backups


Correct Option: B
Explanation:

Using this option, the oracle server automatically rolls back all currently active transactions.

A copy of the which of the following files resides on at least three different physical disks?

  1. Fast incremental backups

  2. Control file

  3. Parameter file

  4. Instance creation

  5. Stream pool


Correct Option: A
Explanation:

If you enable block change tracking, then the database automatically tracks which datafiles blocks have changed in change tracking file.

Which of the following files is used for complete recovery up to the point of failure?

  1. Instance creation

  2. Archive file

  3. Parameter file

  4. Stream pool

  5. Recover


Correct Option: B
Explanation:

Usually complete recovery up to the point of failure is possible if all archive files are possible.

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