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Oracle

Description: Oracle Test contains questions for SQL practice questions
Number of Questions: 15
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Tags: Oracle database design SQL questions SQL practice test IT questions Java/Oracle /C/C++ Oracle
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Which of the following background processes is an optional background process present only when a shared server configuration is used?

  1. Job queue process

  2. Queue monitor

  3. Dispatcher

  4. Archiver

  5. Mounting the database


Correct Option: C
Explanation:

These are optional background processes present only when a shared server configuration is used.

At the finest level of granularity, Oracle database data is stored in which of the following logical storage structures?

  1. Segment

  2. Extent

  3. Oracle datablock

  4. Views

  5. Instance creation


Correct Option: C
Explanation:

At the finest level of granularity, Oracle database data is stored in datablocks.

The entries, such as current online redo log file sequence number, timestamp of database creation, etc., are maintained in which of the following files?

  1. Control file

  2. The archive file

  3. The parameter file

  4. Instance creation

  5. Read Only


Correct Option: A
Explanation:

The entries such as current online redo log file sequence number, timestamp of database creation, etc., are maintained in the control file.

The information in which of the following files is used only to recover the database from a system failure that prevents database data from being written to the data files?

  1. Instance creation

  2. Redo log file

  3. The archive file

  4. The parameter file

  5. Read Only


Correct Option: B
Explanation:

The information in a redo log file is used only to recover the database from a system failure that prevents database data from being written to the data files.

Which of the following background processes is used to resolve distributed transactions that are pending due to system failure in a distributed database?

  1. Recoverer

  2. Archiver

  3. Job queue processes

  4. Queue monitor

  5. Opening the database


Correct Option: A
Explanation:

It is used to resolve distributed transactions that are pending due to a system failure in a distributed database.

Which of the following memory components of the PGA is used for operations, such as bitmap creation, sorting operations etc.?

  1. Recover

  2. Session memory

  3. The stream pool

  4. SQL workarea

  5. Java pool


Correct Option: D
Explanation:

This memory area is used for operations such as Bitmap create, sorting operations, etc.

Which of the following background processes writes the redo log entries sequentially into an online redo log?

  1. Job queue processes

  2. Queue monitor

  3. Log writer

  4. Archiver

  5. Mounting the database


Correct Option: C
Explanation:

This background process writes the redo log entries sequentially into an online redo log.

A tablespace can have many _______________ files associated with it.

  1. Abort

  2. data files

  3. the parameter file

  4. the archive file

  5. instance creation


Correct Option: B
Explanation:

A tablespace can have many data files associated with it.

Which of the following memory components of the SGA is used to hold data blocks read from data files by server processes?

  1. The stream pool

  2. The java pool

  3. Session Memory

  4. Database buffer cache

  5. Opening the database


Correct Option: D
Explanation:

This memory component of the SGA is used to hold data blocks read from data files by server processes.

Which of the following always opens one database?

  1. The Oracle instance

  2. The Oracle server

  3. The Oracle database

  4. Recover

  5. The archive file


Correct Option: A
Explanation:

An Oracle instance always opens one and only one database.

Which of the following logical storage structures commonly group together all application objects using some administrative operations?

  1. Extents

  2. Segments

  3. Views

  4. The password file

  5. Tablespaces


Correct Option: E
Explanation:

Tablespaces commonly group together all application objects to simplify some administrative operations.

Which of the following background processes is responsible for cleaning up the cache and freeing resources that the process was using?

  1. Process monitor

  2. Queue monitor

  3. Job queue processes

  4. Archiver

  5. Mounting the database


Correct Option: A
Explanation:

This background process is responsible for cleaning up the cache and freeing resources that the process was using.

In a dedicated server environment, which of the following memory area is created in the program global area of their server process?

  1. Session memory

  2. The java pool

  3. The stream pool

  4. The archive file

  5. Private SQL area


Correct Option: E
Explanation:

In a dedicated server environment, the private SQL area is created in the program global area of their server process.

In which of the following memory components of the SGA are the sizes of the two caches, such as library cache and the data dicitionary caches not set individually and are automatically determined by the Oracle server?

  1. The stream pool

  2. The shared pool

  3. The java pool

  4. Session memory

  5. The password file


Correct Option: B
Explanation:

In this memory component of the SGA, the sizes of the library cache and the data dictionary caches are not set  individually and are automatically determined by the Oracle server.

Which of the following memory components of the SGA is a circular buffer that contains redo entries?

  1. The stream pool

  2. Redo log buffer

  3. The java pool

  4. Session memory

  5. The archive file


Correct Option: B
Explanation:

This memory component of the SGA is a circular buffer that contains redo entries.

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