Database Management Systems Mcqs

Page No. 56

Which statement is true regarding external tables?


aThe default REJECT LIMIT for external tables is UNLIMITED

✖


bThe data and metadata for an external table are stored outside the database

✖


cORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table

✖


dThe CREATE TABLE AS SELECT statement can be used to unload data into regular table in the database from an external table

✓



__________ are used to ensure that transactions access each data item in order of the transactions’ ____ if their accesses conflict.


aZone

✖


bRelay

✖


cLine

✖


dTimestamps

✓


View Answer Timestamps

A concurrency-control policy such as this one leads to ______ performance since it forces transactions to wait for preceding transactions to finish before they can start.


aGood

✖


bAverage

✖


cPoor

✓


dUnstable

✖


View Answer Poor

In concurrency control policy the lock is obtained on


aEntire database

✓


bA particular transaction alone

✖


cAll the new elements

✖


dAll of the mentioned

✖


View Answer Entire database

Which server can join the indexes when only multiple indexes combined can cover the query:


aSQL

✓


bDBMS

✖


cRDBMS

✖


dAll of the mentioned

✖


View Answer SQL

Which are types of recovery control techniques:


aDeferred update

✖


bImmediate update

✖


cAll of the Mentioned

✓


dNone of the Mentioned

✖


View Answer All of the Mentioned

How many types of recovery control techniques:


a2

✓


b3

✖


c4

✖


d5

✖


View Answer 2

Copying files to secondary or specific devices is known as ______


aRetrieve

✖


bBackup

✓


cRecovery

✖


dDeadlock

✖


View Answer Backup

Database security helps organizations to protect data from _____


aInternal users

✖


bExternal users

✓


cNon-external users

✖


dNon internal users

✖


View Answer External users

Optimization basically related to the Rewrite module is termed as_______


aSemantic query optimization

✓


bGlobal query optimization

✖


cAll of the Mentioned

✖


dNone of the Mentioned

✖



Goto Page No.

Page 56 of 101

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan