IT &computer MCQ section 1 MCQ Questions & Answers Detailed Explanation

Answer: (a)

The number of bits that a computer can process at a time in parallel is called its word length.

The commonly used word lengths are: 8, 16, 32 or 64 bits. It is a measure of the computer power of a computer.

For example, when we talk of a 32-bit computer, it means that its word length is 32 bits.

Answer: (a)

In C language, the formatting character should be preceded by the symbol %.

Answer: (d)

The introductory web page of an organisation is called website. A website (also called an Internet site) is a group of HTML files connected by hypertext links and stored on a web server, i.e. a computer that hosts webpages and is permanently connected to the Internet.

Answer: (a)

A firewall is a computer appliance or router that sits between the trusted and untrusted systems. It enables a computer to be connected safely to an untrustworthy network.

It is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.

Answer: (b)

The byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits. Historically, a byte was the number of bits used to encode a single character of text in a computer.

Answer: (a)

The UNIVAC I (Universal Automatic Computer I) was the first commercial computer produced in the United States. It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC.

It was the first computer designed for business and administrative use with fast execution of relatively simple arithmetic and data transport operations, as opposed to the complex numerical calculations required of scientific computers.