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Past Questions

LDC • 2025 • Paper-I

The average weight of 9 Apples and 1 Mango is 800 grams. If the Mango is excluded, then the average weight is reduced by 150 grams. Then the weight of the Mango is:

A) 2100 grams
B) 2150 grams
C) 2200 grams
D) 2250 grams
Option B is correct: 2150 grams.
LDC • 2025 • Paper-I

What does the Data Table feature in Excel allow you to do?

A) Analyze the results of multiple scenarios quickly
B) Summarize and categorize data
C) Filter data based on specific conditions
D) Sort data by ascending or descending order
Option A is correct: Analyze the results of multiple scenarios quickly.
LDC • 2025 • Paper-I

What can you typically see on the Word screen of a word processor?

A) A blank page with a cursor, menus, and toolbars
B) Only the title of the document
C) The system settings
D) A list of running programs
Option A is correct: A blank page with a cursor, menus, and toolbars.
LDC • 2025 • Paper-I

The angle of elevation of the sun, when the height of the a tree is √3 times the length of its shadow, is:

A) 30°
B) 45°
C) 60°
D) 90°
Option C is correct: 60°.
LDC • 2025 • Paper-I

Central Processing Unit of a computer is basically composed of -

A) Memory and UPS
B) Processor, RAM, Hard Disk and Motherboard
C) Processor and RAM only
D) Arithmetic and Logic Unit
Option D is correct: Arithmetic and Logic Unit.
LDC • 2025 • Paper-I

A collection of tools that allows users to view and change system settings

A) Control Panel
B) Switches
C) Router
D) Msconfig
Option A is correct: Control Panel.
LDC • 2025 • Paper-I

How does HTTPS ensure security during a transaction?

A) By encrypting the entire communication between the user and the website
B) By hiding the user’s IP address
C) By limiting access to sensitive websites
D) By storing data on secure servers
Option A is correct: By encrypting the entire communication between the user and the website.
LDC • 2025 • Paper-I

In Excel, a collection of cells that are organized into rows and columns :

A) Components
B) Tables
C) Slides
D) Worksheets
Option D is correct: Worksheets.
LDC • 2025 • Paper-I

Grammar checking can be done on the followings except -

A) Capitalization
B) Fragments and run-ons
C) Sentence meanings
D) Noun phrases
Option C is correct: Sentence meanings.
LDC • 2025 • Paper-I

What happens if you leave the “Replace with” field blank in the Replace dialog box?

A) The search operation stops
B) The text remains unchanged
C) The word processor displays an error
D) The text is deleted wherever it is found
Option D is correct: The text is deleted wherever it is found.
LDC • 2025 • Paper-I

Successive discounts of 20% and 10% are equivalent to a single discount of :

A) 28%
B) 15%
C) 30%
D) 25%
Option A is correct: 28%.
LDC • 2025 • Paper-I

What is the main focus of fifth-generation computers?

A) High-speed computation
B) Artificial intelligence and parallel processing
C) Batch processing
D) Basic calculations
Option B is correct: Artificial intelligence and parallel processing.
LDC • 2025 • Paper-I

The latest Microsoft Windows available for general public use is -

A) Windows XP
B) Windows 10
C) Windows 11
D) Windows 12
Option C is correct: Windows 11.
LDC • 2025 • Paper-I

What happens when you delete a shortcut in Windows?

A) The actual file or program is deleted
B) The shortcut is removed, but the original file or program remains unaffected
C) The shortcut is permanently moved to a different folder
D) The original file is moved to the Recycle Bin
Option B is correct: The shortcut is removed, but the original file or program remains unaffected.
LDC • 2025 • Paper-I

Which of the following is an example of a system icon found in the Taskbar?

A) Recycle Bin
B) Network icon
C) Application shortcut
D) Folder icon
Option B is correct: Network icon.
LDC • 2025 • Paper-I

Which of the following is not a prime number?

A) 233
B) 251
C) 241
D) 259
Option D is correct: 259.
LDC • Paper-II

The term ‘Cyberspace’ was coined by:

A) Richard Stallman
B) William Gibson
C) Andrew Tannenbaum
D) Scott Fahlman
William Gibson coined the term 'cyberspace' in his 1982 short story 'Burning Chrome'.
LDC • Paper-II

Find the odd one out.

A) COBOL
B) FORTRAN
C) BASIC
D) BNF
BNF is a notation for describing grammars, unlike COBOL, FORTRAN and BASIC, which are programming languages.
LDC • Paper-II

Which out of the following helps in quickly help you rename a file or folder?

A) F2
B) F0
C) F8
D) F9
F2 is the standard Windows shortcut for renaming a selected file or folder.
LDC • Paper-II

Who among the following used the term computer worm for the first time?

A) John Brunner
B) Alan Turing
C) John McCarthy
D) JP Eckert
John Brunner popularized the term 'worm' in the science-fiction context before computer worms became real.
LDC • Paper-II

Internet address is a:

A) 8-bit number
B) 16-bit number
C) 32-bit number
D) 0
In the older IPv4 context, an Internet address is a 32-bit number.
LDC • Paper-II

Which of the following techniques cannot be used for the security of data or information?

A) Encryption
B) Authentication
C) Decryption
D) Authorisation
Decryption reverses encryption and is not itself a preventive security control.
LDC • Paper-II

What is a deadlock in an operating system?

A) When a process is stuck in an infinite loop
B) When two or more processes wait for each other indefinitely
C) When a process executes without waiting
D) When a process releases a resource before using it
A deadlock occurs when processes wait indefinitely for resources held by one another.
LDC • Paper-II

The CPU chip used in the computer system is made up of:

A) Silicon
B) Copper
C) Gold
D) Silver
Most modern CPU chips are fabricated on silicon semiconductor wafers.
LDC • Paper-II

In HTTPS, S means:

A) Secret
B) Software
C) Socket
D) Secure
HTTPS = HyperText Transfer Protocol Secure; S stands for Secure via TLS encryption.