Computer Networks and Internet Quiz

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Questions and Answers

What is the function of a modem in the context of computer networking?

To enable communication between networks using the Internet protocol suite (TCP/IP)

To connect multiple computers to share resources

To establish a connection between two or more devices using wireless technology

To convert digital signals to analog signals for transmission over telephone lines (correct)

What distinguishes a Wide Area Network (WAN) from a Local Area Network (LAN)?

WAN allows access to the Internet, while LAN does not

WAN uses satellite communications for connectivity, while LAN uses wired connections

WAN requires additional hardware such as modems, while LAN does not (correct)

WAN connects computers within a limited geographical area, while LAN connects computers over a large geographical area

What is the primary function of the Internet in the context of computer networking?

To provide a global system of interconnected computer networks for communication and information exchange (correct)

To facilitate cloud computing and wireless technology for data sharing

To establish secure connections between private, public, academic, business, and government networks

To share information and resources among multiple devices within a limited geographical area

What technology is responsible for changing the way we communicate by providing access to more resources and enabling wireless connectivity?

Cloud computing Signup and view all the answers

What does connectivity refer to in the context of computer networking?

The capability of a computer to share information with other computers Signup and view all the answers

How does the Internet differ from other networks in terms of scope?

It consists of networks of local to global scope, interconnected by various networking technologies Signup and view all the answers

What is the main function of system software?

Manages computer resources Signup and view all the answers

Which type of software is used to reduce the size of a file based on a selected algorithm?

Compression tool Signup and view all the answers

What is the main function of antivirus software?

Protect a computer from viruses and other online threats Signup and view all the answers

Which type of operating system is used by smartphones and tablets?

Embedded operating systems Signup and view all the answers

What is the main function of an operating system?

Coordinates computer resources Signup and view all the answers

What type of computer is capable of great processing speeds and data storage?

Supercomputers Signup and view all the answers

Which type of computer serves the maximum number of users and processes large amounts of data?

Mainframe computers Signup and view all the answers

What is the main function of a file management tool?

Manage files stored in a file system Signup and view all the answers

Which type of software is used to manage the disk space, partitions, and format of a disk?

Disk management tool Signup and view all the answers

What distinguishes personal computers (PCs) from other types of computers?

Least powerful yet most widely used and fastest-growing type of computer. Signup and view all the answers

What is the primary function of the system board or motherboard in a computer system?

Controls the communication for the entire computer system Signup and view all the answers

Which component of the system unit is a separate case for desktop computers?

Tower Units Signup and view all the answers

What is the most popular device referred to as a handheld computer?

Smartphone Signup and view all the answers

What important components plug into the motherboard of a computer?

CPU and memory Signup and view all the answers

In what ways do motherboards vary?

Number of CPUs supported and memory they support Signup and view all the answers

What does the system unit of a computer contain, in addition to electronic components?

Selected secondary storage devices Signup and view all the answers

What determines the speed of the microprocessor?

The clock speed measured in GHz Signup and view all the answers

How is the word size of a microprocessor characterized?

By the number of bits that can be processed at one time Signup and view all the answers

What is the main function of the control unit (CU) in a microprocessor/CPU?

To carry out a program’s instructions Signup and view all the answers

Which type of memory is volatile and loses its contents when the computer is powered off?

Random Access Memory (RAM) Signup and view all the answers

What type of storage unit is a byte and how many bits is it comprised of?

A byte is a unit of primary storage comprising 8 bits Signup and view all the answers

What is the main function of Read Only Memory (ROM)?

To contain special instructions like starting the computer (Bootstrap) Signup and view all the answers

What do slots on the system board provide for a computer?

Expansion capabilities for specialized cards or circuit boards Signup and view all the answers

What distinguishes secondary storage from main memory?

Secondary storage holds data currently being processed while main memory holds programs and data Signup and view all the answers

What does cache memory serve as between main memory and CPU?

It serves as temporary, high-speed holding area. Signup and view all the answers

What technology does not determine the speed of the microprocessor?

Number of bits in cache memory. Signup and view all the answers

Study Notes

Computer Networking

A modem's function is to connect a computer to the internet via a telephone or cable line.
A WAN (Wide Area Network) is distinguished from a LAN (Local Area Network) by its larger geographical area, covering cities or even countries.
The primary function of the Internet is to provide global communication and information exchange.

Technology and Connectivity

Wireless connectivity is enabled by Wi-Fi technology, providing access to more resources.
Connectivity refers to the ability of devices to communicate and share resources.

Software

The main function of system software is to manage computer hardware and provide a platform for running application software.
Compression software is used to reduce the size of a file based on a selected algorithm.
Antivirus software is designed to detect and remove malware.

Operating Systems

The main function of an operating system is to manage computer hardware and provide a platform for running application software.
Mobile operating systems are used by smartphones and tablets.

Computer Hardware

Supercomputers are capable of great processing speeds and data storage.
Mainframe computers serve the maximum number of users and process large amounts of data.
A file management tool is used to organize, copy, and delete files.
Disk management software is used to manage disk space, partitions, and format of a disk.

Personal Computers

Personal computers (PCs) are distinguished from other types of computers by their single-user, multi-tasking capabilities.

System Unit

The primary function of the system board or motherboard is to connect and support all hardware components.
The system unit contains the power supply, storage devices, and other electronic components.
The case of a desktop computer is a separate component of the system unit.

Microprocessors and Memory

The clock speed and number of cores determine the speed of a microprocessor.
The word size of a microprocessor is characterized by the number of bits it can process (e.g., 32-bit or 64-bit).
The control unit (CU) in a microprocessor/CPU retrieves and executes instructions.
RAM (Random Access Memory) is a type of volatile memory that loses its contents when the computer is powered off.
A byte is a unit of storage consisting of 8 bits.
ROM (Read-Only Memory) is non-volatile memory that retains its contents even when powered off.
Motherboards vary in terms of socket type, chipset, and features.

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Description

Test your knowledge of computer hardware, local area networks (LAN), wide area networks (WAN), and internetworking, including the internet. Learn about connecting multiple computers to share resources and data, as well as the additional hardware required such as modems and network interfaces.