Oracle Net, Environment & Processes MCQs

10 MCQs — Oracle: Database Server Architecture MCQs

Practice Oracle Net, Environment & Processes MCQs with correct answers and explanations. These questions are from the Oracle: Database Server Architecture MCQs section.

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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

What does TNS stand for?

Transparent Network Substrate
Transfer Node System
Trusted Network Service
Table Name Space

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What is the difference between an Oracle SID and a service name?

SID is for RAC only; service name is for single instance
SID identifies an instance; a service name identifies a service that may map to one or more instances
They are the same
SID is a password

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Which file configures the listener's addresses and services?

tnsnames.ora
sqlnet.ora
init.ora
listener.ora

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Which command shows the status of the listener?

tnsping status
listener -s
sqlplus /status
lsnrctl status

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Which environment variable points to the directory where Oracle software is installed?

ORACLE_PATH
ORACLE_SOFT
DB_ROOT
ORACLE_HOME

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Which environment variable identifies the instance a local session connects to?

ORACLE_USER
ORACLE_LISTENER
ORACLE_TABLE
ORACLE_SID

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Which file is read first at STARTUP NOMOUNT to configure the instance?

The control file
The server parameter file (SPFILE) or PFILE
The redo log
The alert log

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What are the stages of a normal SHUTDOWN?

Dismount, close, delete
Close the database, dismount it, shut down the instance
Archive, close, backup
Flush, compress, encrypt

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Which background process writes AWR snapshots (by default hourly)?

PMON
ARCn
MMON
RECO

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What is the redo log writing pattern?

Only to the first group always
To archived logs only
Randomly to any group
LGWR writes to online redo log groups in a circular fashion

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