Bharat IT Services Interview Questions and Answers

A processor, or CPU, is the central unit that executes instructions and processes data in a computer system.

• The processor performs arithmetic, logic, control, and input/output operations specified by the instructions.

• Common types of processors include Intel Core, AMD Ryzen, and ARM processors.

• Processors are measured in clock speed (GHz) and number of cores, affecting performance.

• Modern processors often include integrat

A processor executes instructions, performs calculations, and manages data flow in a computer system.

• Fetch: Retrieves instructions from memory (e.g., RAM).

• Decode: Interprets the fetched instruction to understand the operation.

• Execute: Performs the operation (e.g., arithmetic calculations).

• Store: Writes the result back to memory or registers.

• Control Unit: Directs the operation of the processor and coordinates activities

A firewall is a security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

• Acts as a barrier between trusted and untrusted networks.

• Can be hardware-based (like a router) or software-based (like an application).

• Filters traffic based on IP addresses, protocols, and ports.

• Example: A corporate firewall may block access to social media sites.

• Helps prevent unauthori