Assessment Test-1 Computer/IT (MCQs)

A combination of 16 bites is called _____.

  • (A) Bit
  • (B) Byte
  • (C) Nibble
  • (D) Word
Check Answer
  • (D) Word
Explanation
16 bits can be described as a “Word”; but the specific options on this list offer up an interesting perspective – while “Word” is the common technical term for 16 bits in many architectures, the given options all come down to one thing – (D) Word is most frequently used to describe 16 bits in terms of basic data units.

A technique for providing fast direct access to a specific stored of a given value is called:

  • (A) Fetching
  • (B) Batch access
  • (C) Hashing
  • (D) Tracking
Check Answer
  • (C) Hashing
Explanation
The technique of Hashing involves using the concept of a hash function to convert a key (or value) to an assigned memory space/ location or address where it can be found (usually referred to as a “bucket”). It allows users to directly access the stored data from its assigned location instead of searching through either an index or the entire database; therefore, it allows the user very quick (efficient) and nearly instantaneous access to the stored information.

‘Shutdown’ option is available on:

  • (A) Start menu
  • (B) Task bar
  • (C) Status bar
  • (D) Title bar
Check Answer
  • (A) Start menu
Explanation
  • The Windows OS features a Start menu where users can access their shutdown options; Shut Down, Restart, and Sleep.
  • Quick Info: Right-clicking the Start button or Alt + F4 from your desktop will also bring up these options.

  • Which software is used to search and view web-pages?

    • (A) HTML
    • (B) Web server
    • (C) Web browser
    • (D) Window explorer
    Check Answer
    • (C) Web browser
    Explanation
    A web-browser is a computer program that allows you to find, view and move through different types of information available on the Internet known as the World Wide Web. When you type in a web address or search phrase, your web-browser goes to that specified web server, gets the data in the form of usually an HTML page, and shows (creates) it on your screen so that you can read it. The most popular web-browsers are Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge.

    Which of the following is not related to e-mail?

    • (A) Bcc
    • (B) Pen
    • (C) Pine
    • (D) Spam
    Check Answer
    • (B) Pen
    Explanation
  • A Pen serves as a physical writing tool and a digital stylus which people use to create drawings and make digital inputs but it does not function as an essential technical element or standard feature or built-in protocol of the email system.
  • The term “Pen” describes a physical writing tool which does not function as an essential technical element or built-in protocol or standard feature of electronic mail (e-mail) systems.
  • Bcc: This stands for Blind Carbon Copy. It is a standard field used to send a copy of an email to recipients whose addresses remain hidden from other recipients.
  • The Pine (Program for Internet News and Email) application functioned as a terminal-based e-mail client which people used on Unix systems although it has become less popular in modern times.
  • The term Spam describes bulk unwanted email messages which businesses send to customers without their consent for advertising purposes or to spread harmful content.

  • Computers calculate numbers in what mode?

    • (A) Fraction
    • (B) Binary
    • (C) Octal
    • (D) Decimal
    Check Answer
    • (B) Binary
    Explanation
    Computers operate using the binary number system, which consists of only 0s and 1s, because their hardware relies on electrical signals that have two states: ON and OFF. Decimal and octal systems together with fractional numbers serve as human-readable formats that systems convert into binary for their internal computations.

    _____ uses information systems to do an activity cheaper, faster, accurately and consistently.

    • (A) Genetics
    • (B) Automatic
    • (C) Robotics
    • (D) Automation
    Check Answer
    • (C) Robotics
    Explanation
    Robotics fieldwork utilizes information systems for the development of robotic systems which operate with enhanced operational efficiency through lower operational costs and shorter time requirements and superior accuracy and constant performance. The field of automation applies technological solutions to execute physical tasks and complicated processes with reduced need for human participation.

    In computing, what is the full form of ‘GB’?

    • (A) Gogobyte
    • (B) Gigabyte
    • (C) Grand byte
    • (D) Gaga byte
    Check Answer
    • (B) Gigabyte
    Explanation
  • In computing the full form of ‘GB’ is Gigabyte.
  • A Gigabyte is a unit of information storage.
  • It is considered to be 1,000 Megabytes in decimal or 1,024 Megabytes in binary.
  • Gigabyte is often used to measure storage capacity of devices like smartphones hard drives and SD cards.
  • We use Gigabyte to know how much data a device can hold.
  • Devices, like smartphones hard drives have their storage measured in Gigabyte.

  • Which is a volatile memory?

    • (A) ROM
    • (B) BIOS
    • (C) RAM
    • (D) PROM
    Check Answer
    • (C) RAM
    Explanation
    RAM (Random Access Memory) is the primary workspace of a computer. It stores the data and instructions that the CPU is actively using. It is designed for high-speed reading and writing, but it cannot retain data without a constant electrical charge. In computing volatile memory is a type of storage. It needs power to keep the information stored. If the power goes out or you turn off the computer all the data, in memory disappears right away. Volatile memory loses all its data when the computer is shut down.

    “Binary Codes” as used in computer sciences are codes made up of which of the following two numbers?

    • (A) 0 and 1
    • (B) 0 and 9
    • (C) 1 and 3
    • (D) 0 and 2
    Check Answer
    • (A) 0 and 1
    Explanation
  • Binary code is the basic language computers use to process data. The term binary comes from Latin meaning it has two parts.
  • Why do computers use 0 and 1?
  • In computer science these two numbers, called bits show two electrical states in a computers hardware:
  • 0 means Off or low voltage.
  • 1 means On or high voltage.

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