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Crash Recovery BWT

Authored by Joseph Ighosiohwonoja

Computers

9th - 12th Grade

Used 2+ times

Crash Recovery BWT
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is crash recovery in the context of computer systems?

Restoring a crashed system to its previous state

Recovering data from a crashed hard drive

Restarting the computer after a crash

Repairing damaged system files

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  1. What is a transaction in the context of crash recovery?

  1. a) A system backup process

  1. b) A failed computer component

  1. c) An atomic unit of work that must be completed as a whole

  1. d) A type of software update

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  1. What is a write-ahead log (WAL) in crash recovery?

  1. a) A log file that records changes before they are applied to the database

  1. b) A backup file created after a crash

  1. c) A tool to analyze crash reports

  1. d) A software feature to prevent crashes from happening

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements about the ARIES recovery algorithm is true?

A) ARIES stands for "Advanced Recovery and Isolation Enhancement System."

B) ARIES is a crash recovery algorithm specifically designed for distributed databases.

C) ARIES uses a combination of undo and redo logging to ensure database recovery.

D) ARIES does not support write-ahead logging.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a condition that can result in a transaction failure?

Network speed issues

User error in data entry

Increased database size

Power failure on machine

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the analysis phase in ARIES recovery?

To restore the database to its original state

To compute necessary information from the log file

To create a backup of the database

To delete all uncommitted transactions

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Crash recovery ensures the database returns to a:

Random state

Unused state

Consistent and usable state

Archived state

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