Oracle: Database Server Architecture MCQs

58 MCQs (Page 1 of 6)

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Oracle: Database Server Architecture Subcategories

Background & Server Processes	Connections, Processing & Memory Parameters
Instance & Memory Structures	Oracle Net, Environment & Processes
Physical & Logical Storage	Storage Structures & Diagnostics

An Oracle instance consists of:

Only datafiles
Only the control file
The SGA and background processes
Only the listener

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What is the Oracle database?

The SGA and background processes
The listener only
The set of physical files such as datafiles, control files and redo logs
A SQL client tool

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What is the SGA?

Memory private to one session
A disk area for backups
A shared memory region used by all server and background processes of an instance
A type of tablespace

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What is the PGA?

Memory private to a single server process
Shared memory for all users
A redo log file
A background process

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Which SGA component caches data blocks read from datafiles?

Redo log buffer
Large pool
Database buffer cache
Java pool

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Which two main components make up the shared pool?

Buffer cache and redo buffer
Large pool and Java pool
PGA and UGA
Library cache and data dictionary cache

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What does the library cache store?

Data blocks
Parsed SQL statements and execution plans
Redo entries
Passwords

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What does the redo log buffer hold?

Redo entries describing changes to the database before they are written to disk
Undo data only
Parsed SQL
Table data

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Which initialization parameter enables automatic management of SGA components?

SGA_TARGET
LOG_BUFFER
OPEN_CURSORS
PROCESSES

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Which file stores initialization parameters in a binary, server-managed format?

Alert log
Control file
Password file
SPFILE

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