HCLTech Senior Analyst II Interview Questions, Process, and Tips

A network is a collection of computers, servers, mainframes, network devices, and other devices connected to one another to share data and resources.

• Networks can be classified based on their size (LAN, WAN, MAN)

• They can be wired or wireless

• Common network devices include routers, switches, and firewalls

• Examples of networks include the internet, intranets, and extranets

VPN stands for Virtual Private Network, a secure connection that allows users to access the internet privately and securely.

• VPN creates a secure encrypted connection over a less secure network, such as the internet.

• It masks your IP address and encrypts data to ensure privacy and security.

• VPN can be implemented using VPN software or apps, configuring VPN settings on devices, or using VPN routers.

• Examples of VPN services

IPsec stands for Internet Protocol Security, a protocol suite used to secure Internet Protocol (IP) communications.

• IPsec provides authentication, integrity, and confidentiality for data transmitted over a network.

• It can be implemented through various protocols such as Authentication Header (AH) and Encapsulating Security Payload (ESP).

• IPsec can be used to create Virtual Private Networks (VPNs) for secure communication ...read more

BIOS stands for Basic Input/Output System. It is a firmware that initializes hardware components during the boot process.

• BIOS is a firmware embedded on a small chip on the motherboard of a computer.

• It is responsible for initializing and testing hardware components like the CPU, memory, and storage devices during the boot process.

• BIOS also provides a basic set of instructions for the operating system to interact with th...read more