Practice Quiz set 2 - general awareness mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   In C language, the formatting character should be preceded by the symbol:

(a)

(b)

(c)

(d)

Explanation:

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


Q-2)   What is the size of Floppy Diskette which is used normally ?

(a)

(b)

(c)

(d)

Explanation:

A floppy disk is a thin magnetic-coated disk contained in a flexible or semi-rigid protective jacket. Data is stored in tracks and sectors. The floppy disks are usually 3.5" in size.

However, older floppy disks may be in use; these would be 5.25" in size. Double-sided high density 3.5" disks can hold 1.44 Mb of data.


Q-3)   The unit of measurement of a word length is

(a)

(b)

(c)

(d)

Explanation:

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.


Q-4)   Which of the following is not reckoned as a ‘value added’ telecommunication service?

(a)

(b)

(c)

(d)

Explanation:

Value-added telecommunication services are telecommunications for which suppliers “add value” to the customer’s information by enhancing its form or content or by providing for its storage and retrieval.

FAX is not considered to be a Value-added telecommunication service.


Q-5)   A parallel port is most often used by a –

(a)

(b)

(c)

(d)

Explanation:

A parallel port can be used to connect a large number of devices. The most common usage was for printers, although scanners, external disk drives, and network adapters also used this port. With a special cable, two computers could also be connected directly for sharing files.


Q-6)   How many types of recipients are there in an e-mail system?

(a)

(b)

(c)

(d)

Explanation:

Electronic mail, most commonly referred to as email, is a method of exchanging digital messages from an author to one or more recipients.

Normally, there could be three types of recipients:

  1. the target recipient;
  2. a carbon copy (Cc) recipients; and
  3. blind carbon copy (Bcc) recipients.


Q-7)   Find the “odd one out”.

(a)

(b)

(c)

(d)

Explanation:

Linux, Windows 98 and Windows 7 are examples of operating systems, the system software that manages computer hardware and software resources and provides common services for computer programs.

C++ is a middle-level programming language developed by Bjarne Stroustrup starting in 1979 at Bell Labs.


Q-8)   The first operational electronic digital computer is

(a)

(b)

(c)

(d)

Explanation:

ENIAC was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve a full range of computing problems. The 18,000-tube ENIAC was completed in 1946.


Q-9)   Where are programs and data to be used by the computer available?

(a)

(b)

(c)

(d)

Explanation:

In a computer, storage is the place where data is held in an electromagnetic or optical form for access by a computer processor. It is a technology consisting of computer components and recording media used to retain digital data. It is a core function and fundamental component of computers.


Q-10)   Which of the following memories must be refreshed many times per second?

(a)

(b)

(c)

(d)

Explanation:

Dynamic Random Access Memory (DRAM), the most common kind of Random Access Memory (RAM) for Personal computers and workstations, has to be refreshed many times per second in order to hold its data contents.

DRAM is dynamic in that, unlike static RAM (SRAM), it needs to have its storage cells refreshed or given a new electronic charge every few milliseconds. DRAM stores each bit in a storage cell consisting of a capacitor and a transistor.

Capacitors tend to lose their charge rather quickly thus, the need for recharging.