Explanation

Explanation

There are 4 Farz (obligatory acts) in Wudu (Ablution).

1. Wash the face once.
2. Wash both arms up to and including the elbows once.
3. Perform Masah over one-fourth of the head.
4. Wash both feet including the ankles once.

Additional information:

• Performing these four acts is necessary for a valid Wudu.
• Wudu is required before offering Salah (prayer).
• The acts that break Wudu are called Nawaqiz-e-Wudu.

Most Important Information:

• Sunnah acts of Wudu: 13
• Farz in Ghusl: 3
• Farz in Salah (Namaz): 17
• Angel who taught Wudu and Salah to the Prophet (ﷺ): Jibril
• Wudu was ordered in 5 AH.

Last verified on 03-07-2026

Explanation

• ROM (Read Only Memory) is a non-volatile storage device.
• It stores data permanently even without power.

Additional information:

• RAM (Random Access Memory) is a volatile storage device.
• It loses data when power is off.

Last verified on 17-06-2026

Explanation

• A firewall’s main function is to prevent or block unauthorized access to a computer network.
• It acts as a security barrier between trusted and untrusted networks (like the internet).
• It filters incoming and outgoing network traffic based on security rules.
• It helps protect systems from hackers and unwanted access attempts.

Last verified on 10-06-2026

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

• An Operating System (OS) is system software.
• It manages computer hardware and provides a platform for running application software.
• It acts as an interface between the user and computer hardware.

Functions of an Operating System:

• Allocates resources
• Monitors activities
• Manages disks and files

Last verified on 02-07-2026

Explanation

• Carbon dioxide (CO₂) — the main greenhouse gas causing global warming.

Additional information:

• Methane (CH₄) — potent, from livestock and fossil fuels.
• Nitrous oxide (N₂O) — from fertilizers and industry.
• Water vapor — natural, amplifies warming.
• Fluorinated gases — synthetic, very strong effect.

Explanation

Explanation

• Surah Al-Baqarah is the longest chapter (surah) in the Holy Quran
• Chapter Number: 2nd chapter in the Quran.
• Meaning: "The Cow" or "The Heifer".
• Verse Count: 286 verses (ayat).
• Length: Spans about 2.5 parts (juz') of the Quran
• .Place of Revelation: Madinah. 
• It derives its name from the story of the cow (vv. 67-73).
• Verse 282, the longest verse, is known as 'āyatu d-dayn.
• It consists of 25,500 letters.
• The chapter has 40 Rukus.

Additional information:

• Surah Al-Kausar is the shortest surah of the Holy Quran.
• Surah Aal-e-Imran is the second-longest surah of the Holy Quran.

Last updated NA on 10-09-2026

Explanation

• Prophet Muhammad personally participated in 27 to 29 total military Ghazwat
• The battles led by the Holy Prophet (PBUH) are called Ghazwas.

Holy Prophet (PBUH) personally participated in about 9 of them

1. Badr (fought three times)
2. Uhud
3. Bani Mustalaq
4. Khandaq
5. Bani Quraizhah
6. Khayber
7. Fathu Makkah
8. Hunain
9. Taif

Last updated question NS on 10-09-2026