Explanation

A Firewall is used in a computer network to protect a server from unauthorized access and potential damage by those who log in.

It monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Explanation

• The International Civil Aviation Organization (ICAO) is a UN agency dealing with international air navigation.
• It was created by the Chicago Convention in 1944.
• It started functioning on 14th July 1947.
• Its headquarters is in Montreal, Canada.
• The official languages are Arabic, Chinese, English, French, Russian, and Spanish.

Explanation

The "Page Down" key is used to scroll down one page at a time in a document, webpage, or other content on a computer screen.

Explanation

Switzerland Capital is Bern.

Switzerland Currency is Swiss Franc.

Switzerland official language is German; French; Italian.

Switzerland located is in Continent Europe.

Switzerland Primary Religion is Christianity.

Switzerland Head of Govt. is President - Viola Amherd

Switzerland Parliament called Bundesversammlung.

Explanation

Article 245 of the Constitution of Pakistan 1973 states: 

"The Armed Forces shall, under the directions of the Federal Government, defend Pakistan against external aggression or threat of war, and, subject to law, act in aid of civil power when called upon to do so."

Explanation

The JF-17 was inducted into the PAF in February 2010.

 It is a fourth-generation aircraft developed jointly by

• The Chengdu Aircraft Corporation (CAC) of China
• The Pakistan Aeronautical Complex (PAC)

Fifty-eight (58) percent of the JF-17 airframe is produced in Pakistan.

Forty-two (42) percent is produced in China

Manufactured

In China: June 2007 – present

In Pakistan: January 2008 – present

Introduction date: 12 March 2007

First flight: 25 August 2003

Explanation

Tetanus is a bacterial infection that can cause muscle stiffness and spasms.

It particularly in the jaw muscles, leading to the characteristic symptom of "lockjaw".

Explanation

It is the worst film that I have ever seen.

یہ سب سے بری فلم ہے جو میں نے کبھی دیکھی ہے۔

"The worst" is used to describe something as the lowest in quality compared to all others.

Explanation

Excel allowed you to create a chart by selecting the data and pressing the F11 key. 

Explanation

In MS Word, the "Home" keyboard key is used to move the cursor to the beginning of the current line.

This shortcut is often used to quickly navigate to the start of a line, especially when editing or formatting text.