a virus that spreads in a computer is a type of malicious computer program. Computer viruses are software programs designed to replicate themselves and spread from one computer to another. They can attach themselves to legitimate programs or documents, and when the infected program or document is executed, the virus activates and starts spreading to other files and systems. Viruses can cause various harmful effects, such as corrupting or deleting files, stealing sensitive information, or disrupting computer operations. Antivirus software and best practices, such as avoiding suspicious downloads and email attachments, are used to protect computers from these malicious programs.

A switching hub, also known as a network switch, is designed to send packets using package addresses. A network switch operates at the data link layer of the OSI model and uses MAC addresses to forward data frames to specific devices within a local area network (LAN). Unlike a hub, which simply broadcasts data to all devices in the network, a switch intelligently forwards packets only to the device intended to receive the data, increasing network efficiency and reducing unnecessary network traffic.

Application for Government Services and Fee Payment: Using the e-Mitra portal, citizens can apply for various government services and pay fees. These services include-

- Bill payment Home

- Application for certificates

- Filing of grievances

- Birth certificate

- Death certificate

- Caste certificate

- Basic address proof

- Ration card

- Passport

1. Booting is a type of start-up sequence that starts the computer's operating system when the system is switched on.

2. This process involves some set of operations, which are performed when the computer is switched on. Knowing the boot sequence is important for optimizing and troubleshooting the computer.

3. It can be initiated by hardware such as a button press, or by software commands.

4. After it is started, there is no software in the main memory of the computer's central processing unit (CPU), so the software must be loaded into memory before it can be executed by some process.

it can be programmed to activate during a particular date or time, making it a significant threat if it goes undetected until the specified trigger conditions are met. Time bombs are often used by attackers to initiate their malicious activities at a specific moment, adding an element of surprise and making it difficult to prevent or mitigate the damage.