What is the purpose of a firewall in a computer network? [#1485]

A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.

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A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.

RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).

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RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).

The Indian Coast Guard is a maritime law enforcement and search and rescue agency of India with jurisdiction over its territorial waters including its contiguous zone and exclusive economic zone.

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The Indian Coast Guard is a maritime law enforcement and search and rescue agency of India with jurisdiction over its territorial waters including its contiguous zone and exclusive economic zone.

The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.

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The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.

A printer is an output device that produces physical copies of digital documents. It can print text, images, and graphics.

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A printer is an output device that produces physical copies of digital documents. It can print text, images, and graphics.

In the Constitution of India, promotion of international peace and security is included in the "Directive Principles of State Policy" in Article 51.

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In the Constitution of India, promotion of international peace and security is included in the "Directive Principles of State Policy" in Article 51.

Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.

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Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.

A search engine is a software application that helps users find information on the internet. It works by indexing web pages and then retrieving relevant results based on user queries.

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A search engine is a software application that helps users find information on the internet. It works by indexing web pages and then retrieving relevant results based on user queries.

The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.

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The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.

A byte is the smallest unit of data storage in a computer. It consists of 8 bits. Bits are the individual units of data (either 0 or 1) that make up a byte.

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A byte is the smallest unit of data storage in a computer. It consists of 8 bits. Bits are the individual units of data (either 0 or 1) that make up a byte.

Encrypting is the process of converting data into a code that cannot be read or understood without a key. This is done to protect sensitive information from unauthorized access.

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Encrypting is the process of converting data into a code that cannot be read or understood without a key. This is done to protect sensitive information from unauthorized access.