Explanation

The F4 key is commonly used to repeat the last action in programs like Microsoft Word and Excel.

For example, if you format text or perform a specific action, pressing F4 will repeat it.

Last updated question by NA on 07 May 2026

Explanation

• Linux is based on open-source software.
• It is a Unix-like operating system.
• Created by: Linus Torvalds (1991).
• It is widely used in servers, mobile devices, and supercomputers.

Last updated 18-07-2026 by NA

Explanation

• ASCII: American Standard Code for Information Interchange
• Purpose: Character encoding standard
• Range: 0–127
• Represents: Letters, numbers & punctuation
• Work began: May 1961
• Definitive version: Published in 1968

Last updated by NA ON 16-09-2026

Explanation

Member Countries (8):

1. Afghanistan,
2. Bangladesh,
3. Bhutan,
4. India,
5. Maldives,
6. Nepal,
7. Pakistan,
8. Sri Lanka

SAARC: South Asian Association for Regional Cooperation

• Founded: 8 December 1985
• Headquarters: Kathmandu, Nepal
• Official Language: English
• Purpose: Promote regional cooperation, economic growth, and cultural exchange among South Asian nations

Explanation

• The dollar sign ($) is used to create an absolute cell reference in MS Excel.

Additional information:

• Absolute Reference: $D$2 (Row and column fixed)
• Relative Reference: D2 (Row and column change)
• Mixed Reference: $D2 (Column fixed)
• Mixed Reference: D$2 (Row fixed)
• Shortcut Key: F4 toggles between reference types.

Last verified on 18-07-2026

Explanation

• The SQL command used to retrieve data from a database table is the SELECT statement.
• This command is fundamental to the Data Query Language (DQL) in SQL.

Last verified on 07-06-2026

Explanation

• Gateway — connects networks with different protocols; performs protocol conversion (works up to the application layer).

Additional information:

• Bridge — connects networks using the same protocol (data link layer).
• Router — connects networks using the same protocol, typically IP (network layer).

Last updated NA on 10-09-2026

Explanation

• The Battle of Badr was fought in the year 2 AH (After Hijrah)
• Islamic Date: 17 Ramadan, 2 AH
• Gregorian Date: March 13, 624 CE
• Place: Badr (near Madinah)
• Between: Muslims and Makkans (Quraysh)
• Muslim Leader: Muhammad (SAW)
• Muslims: around 313 soldiers
• Number of Muslim martyrs: 14
• Quraysh Army: around 1000 soldiers
• Muslim horses: 2
• Muslim camels: around 70

Last updated by NA on 09-09-2026

Explanation

In MS Word, the default alignment for a paragraph is Left (or Left-aligned)

This setting aligns text along the left margin, leaving the right edge ragged

Shortcut: Ctrl+L 

Last updated by NA 15-feb-2026

Explanation

• .pptx → Default PowerPoint Presentation (2007 and later)
• ppt → PowerPoint Presentation (97–2003)

Additional information:

• .ppsx → PowerPoint Show (opens directly as a slideshow)
• .potx → PowerPoint Template
• .pptm → Macro-enabled Presentation

Last verified on 11-07-2026