Computer Terminology

603 questions available

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All Common Computer Terms 2 Abbreviations 2 File Extensions 6 Operating Systems 99 Programming Basics 213 Database Basics 142 Common Technical Terms 138
Showing 481–500 of 603

Q481.Which data structure would you use to evaluate an expression given in postfix notation?

Easy
A Stack
B Binary Tree
C Queue
D None of these
Programming Basics PPSC

Correct Answer: A

A Stack data structure evaluates postfix expressions efficiently by pushing operands and popping them as operators are encountered.

Q482.Which traversal algorithm is used in the breadth-first search (BFS) of a graph?

Easy
A Level-order traversal
B Post-order traversal
C Pre-order traversal
D None of these
Programming Basics PPSC

Correct Answer: A

BFS processes nodes level-by-level, which corresponds directly to level-order traversal (using a queue).

Q483.Which type of attack involves tricking a user into providing sensitive information?

Easy
A DDoS
B Phishing
C SQL Injection
D None of these
Database Basics PPSC

Correct Answer: B

Phishing is a social-engineering cyberattack designed to deceive users into disclosing private credentials or sensitive details.

Q484.In a multi-threaded environment, which of the following is true about thread synchronization?

Easy
A Thread synchronization is not necessary as threads do not share resources
B Synchronization is handled automatically by the operating system
C Thread synchronization used semaphores and mutexes to prevent race condition
D None of these
Operating Systems PPSC

Correct Answer: C

In multi-threading, synchronization tools (like mutexes, semaphores, or locks) are used to protect shared memory and prevent race conditions.

Q485.Which of the following is NOT a type of NoSQL database?

Easy
A Relational
B Key-Value
C Document
D None of these
Database Basics PPSC

Correct Answer: A

Relational databases (SQL) organize data into tables with schemas, which is fundamentally distinct from NoSQL storage models.

Q486.What is a "Kernel Panic" in the context of operating systems?

Easy
A A sudden loss of network connectivity
B A failure in data synchronization
C A system crash caused by critical errors in the OS kernel
D None of these
Operating Systems PPSC

Correct Answer: C

A Kernel Panic is a safety measure taken by an operating system's kernel upon encountering a fatal error from which it cannot safely recover, resulting in a system crash.

Q487.In internet world, The communication between client and web server take place using?

Easy
A PHA
B JAVA
C CSS
D ASP NET
Programming Basics PPSC

Correct Answer: D

ASP.NET is a popular server-side web application framework used to manage and process client-server web communications.

Q488.The list of coded instructions is called?

Easy
A Computer program
B Algorithm
C Flowchart
D None of these
Programming Basics PPSC

Correct Answer: A

A list of coded instructions executed by a computer processor is called a computer program.

Q489.Software that assists you, or acts on your behalf, to perform repetitive computer-related tasks is a(n):

Easy
A Intelligenagent
B Robot
C Fuzzy logic
D Genetic algorithm
Programming Basics PPSC

Correct Answer: A

An intelligent agent is a software entity designed to automate processes and act on behalf of users to execute repetitive tasks.

Q490.A row in an MS Access (database) table is called a ______?

Easy
A Query
B Record
C Field
D None of these
Database Basics PPSC

Correct Answer: B

In database tables, a horizontal row is called a Record (or tuple) representing a complete entry, while columns are called Fields (attributes).

Q491.What is a database?

Easy
A Consists of many different files linked with each other for the retrieval of information
B Consists of integers only
C Consists of alphanumeric characters only
D None of these
Database Basics PPSC

Correct Answer: A

A database is structured as a collection of logically related tables or files linked together to allow easy access, querying, and retrieval of information.

Q492.In relational database design, what is an attribute?

Easy
A A characteristic of an entity
B A type of database
C A programming function
D None of these
Database Basics PPSC

Correct Answer: A

An attribute represents a specific column or data field describing a property or characteristic of a database entity (e.g., Age of a Student).

Q493.What is a database entity?

Easy
A A type of database
B A single object or concept
C A programming language
D None of these
Database Basics PPSC

Correct Answer: B

An entity represents an independent, uniquely identifiable object, person, or concept in a database (such as 'Customer' or 'Product').

Q494.In which year was the first computer operating system developed?

Easy
A 1976
B 1945
C 1950
D None of these
Operating Systems PPSC

Correct Answer: C

The first operating system, known as GM-NAA I/O, was built in 1950 by General Motors for their IBM 704 mainframe computers.

Q495.What is the process of converting simple high-level programming language into binary machine language called?

Easy
A Compilation
B Modulation
C Interpretation
D None of these
Programming Basics PPSC

Correct Answer: A

A compiler converts high-level source code into low-level machine code all at once, whereas an interpreter does it line by line at runtime.

Q496.When creating a new database table, which method allows selecting pre-defined fields from standard templates?

Easy
A Create table in Design View
B Create Table by Entering data
C Create Table using wizard
D None of these
Database Basics PPSC

Correct Answer: C

The Table Wizard guides users to create new tables by selecting from a list of standardized template fields (such as 'First Name' or 'Address').

Q497.In Windows operating systems, which option is used to manage system settings, install hardware, or configure software?

Easy
A Control Panel
B Title bar
C Status bar
D None of these
Operating Systems PPSC

Correct Answer: A

The Windows Control Panel contains built-in applets and wizards to configure hardware devices, manage drivers, and customize settings.

Q498.Which type of programming language consists entirely of binary code (1s and 0s) and was used as the first-generation language?

Easy
A Machine language
B Compiler language
C HTML
D None of these
Programming Basics PPSC

Correct Answer: A

Machine language is the native binary instruction set executed directly by the CPU, classified as the first-generation computer language.

Q499.Which of the following media files typically carries a '.mpg' file extension?

Easy
A Audio files
B Image files
C Video files
D None of these
File Extensions PPSC

Correct Answer: C

The .mpg (or .mpeg) extension represents compressed digital video files created using the standards developed by the Moving Picture Experts Group.

Q500.Which of the following database objects is considered the primary output of a database application?

Easy
A Report
B Table
C Form
D Query
Database Basics PPSC

Correct Answer: A

A Report is designed specifically to compile, format, and present database information in an organized, readable, and printable format.