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Grade 12 Quizzes, Questions & Answers

Recent Grade 12 Quizzes

Query Rewriting Techniques Quiz

Questions: 15 | Attempts: 10 | Last updated: May 2, 2026

Sample Question
What is query rewriting in database optimization?

Rewriting a query to produce the same result more efficiently

Changing the database schema to match the query

Converting SQL to a different programming language

Removing all WHERE clauses from a query

Deadlock Detection Basics Quiz

Questions: 15 | Attempts: 11 | Last updated: May 2, 2026

Sample Question
What is a deadlock in a concurrent system?

A situation where two or more processes cannot proceed because each waits for a resource held by another

A process that terminates unexpectedly

A lock that cannot be released by any process

A temporary delay in process execution

SQL Conditional Expressions Quiz

Questions: 15 | Attempts: 11 | Last updated: May 2, 2026

Sample Question
Which SQL keyword is used to test if a value exists within a specified range?

BETWEEN

IN

LIKE

EXISTS

Stored Procedure Basics Quiz

Questions: 15 | Attempts: 13 | Last updated: May 2, 2026

Sample Question
What is a stored procedure?

A set of SQL statements stored and executed on the database server

A temporary table used for calculations

A type of database backup file

A method of encrypting sensitive data

Ad Hoc Testing Basics Quiz

Questions: 15 | Attempts: 11 | Last updated: May 2, 2026

Sample Question
What is ad hoc testing?

Unplanned testing based on tester intuition and domain knowledge

Testing that follows a strict, predefined test plan

Automated testing using scripts and tools

Testing performed only after release to production

Check Constraint Basics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 2, 2026

Sample Question
What is a check constraint in a database?

A rule that ensures values in a column meet a specified condition

A method to automatically delete incorrect records

A constraint that only allows NULL values

A backup mechanism for data recovery

REST API Status Codes Quiz

Questions: 15 | Attempts: 11 | Last updated: May 2, 2026

Sample Question
What does HTTP status code 200 indicate?

Request successful; response contains data

Resource created successfully

Request is being processed

Resource not found

Equivalence Partitioning Basics Quiz

Questions: 16 | Attempts: 13 | Last updated: May 2, 2026

Sample Question
What is equivalence partitioning?

Dividing input domain into groups that behave identically

Randomly selecting test cases from all inputs

Testing only boundary values of an application

Partitioning the code into equal modules

Graceful Degradation Basics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is graceful degradation in software systems?

The system completely stops when an error occurs

The system continues operating with reduced functionality when errors occur

The system automatically fixes all errors without user notice

The system deletes corrupted data to prevent spread

Pair Programming Basics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is the primary role of the 'driver' in pair programming?

Controls the keyboard and writes the code

Reviews the code and suggests improvements

Manages the project timeline

Tests the final product

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