What is the advantage of parallel data transmission over serial transmission?

Greater reliability over long distances

What is full-duplex data transmission?

Simultaneous two-way transmission

Two-way transmission, but not simultaneous

Transmission with built-in error correction

What is the purpose of a parity check?

To detect errors in data transmission

To compress data for efficient storage

To route data packets across a network

What is the key difference between symmetric and asymmetric encryption?

Symmetric encryption uses the same key for encryption and decryption, while asymmetric encryption uses separate keys

Symmetric encryption is faster than asymmetric encryption

Symmetric encryption is more secure than asymmetric encryption

Symmetric encryption is used for data storage, while asymmetric encryption is used for data transmission

What is the von Neumann architecture?

A computer architecture where data and instructions are stored in the same memory

What is the role of the ALU (Arithmetic Logic Unit)?

To perform arithmetic and logical calculations

To manage the computer's memory

To handle input and output operations

To control the fetch-decode-execute cycle

A device that converts physical phenomena into digital signals

What is the main difference between RAM and ROM?

RAM is volatile, while ROM is non-volatile

RAM is used for storage, while ROM is used for processing

RAM stores programs, while ROM stores data

What is the purpose of a Network Interface Card (NIC)?

To connect a computer to a network

What is a MAC address?

A unique identifier assigned to each network interface card

A temporary IP address assigned to a device

A protocol for transferring data over the internet

What is the difference between system software and application software?

System software manages hardware resources, while application software performs specific tasks for users

System software is written in a high-level language, while application software is written in a low-level language

System software is stored on secondary storage, while application software is stored in RAM

System software is developed by hardware manufacturers, while application software is developed by independent developers

What is the main function of an operating system?

To manage hardware and software resources and provide a user interface

To create spreadsheets and documents

What is a high-level programming language?

A language that is easy for humans to understand but needs to be translated into machine code

A language that is difficult for humans to understand but is directly executable by the CPU

A language specifically designed for developing operating systems

A language used to communicate with hardware devices

What is the role of a compiler?

To convert high-level programming code into machine code

To execute high-level programming code directly

What is the internet?

A global network of interconnected networks

A software application for browsing websites

What is the purpose of a URL (Uniform Resource Locator)?

To identify and locate web resources

To define the structure and content of a web page

What is the difference between HTTP and HTTPS?

HTTPS uses encryption to secure data transmission, while HTTP does not

HTTP is used for downloading files, while HTTPS is used for uploading files

HTTP is used for secure communication, while HTTPS is used for non-secure communication

Small text files stored on a user's computer by websites

iGCSE-Recap Quiz (unit 1-5): 30 Questions

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which number system do computers use to represent data?

Decimal

Binary

Hexadecimal

Octal

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of ASCII and Unicode?

To store images in a compressed format

To represent text characters as binary codes

To transmit data over a network

To encrypt data for security

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which factors affect the quality and file size of a digital sound recording?

Sample rate and sample resolution

Image resolution and color depth

File compression method

Network bandwidth

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a pixel?

A type of file compression

A unit of data storage

A point of light that makes up a digital image

A network protocol

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between lossless and lossy data compression?

Lossless compression is faster than lossy compression

Lossless compression preserves all original data, while lossy compression removes some data

Lossless compression is used for images, while lossy compression is used for audio

Lossless compression results in smaller file sizes than lossy compression

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a data packet?

A unit of data storage

A type of error detection method

A segment of data transmitted over a network

A type of encryption algorithm

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is packet switching?

A method for storing data in a database

A technique for transmitting data packets independently across a network

A type of error correction code

A way to encrypt data for secure transmission

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iGCSE-Recap_Quiz (unit 1-5)

Which number system do computers use to represent data?

What is the purpose of ASCII and Unicode?

Which factors affect the quality and file size of a digital sound recording?

What is a pixel?

What is the difference between lossless and lossy data compression?

What is a data packet?

What is packet switching?

Which data transmission method sends data one bit at a time?

What is the advantage of parallel data transmission over serial transmission?

What is full-duplex data transmission?

Access all questions and much more by creating a free account

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