It Techies Services Interview Questions, Process, and Tips

A domain is a unique name that identifies a website on the internet.

• A domain consists of a top-level domain (TLD) like .com, .org, or .net, and a second-level domain like google or amazon.

• Domains are used to easily navigate to websites without needing to remember IP addresses.

• Domains are registered through domain registrars like GoDaddy or Namecheap.

• Example: The domain www.google.com consists of the second-level domain

A switch is a networking device that connects devices on a computer network by using packet switching to forward data to the appropriate destination.

• A switch operates at the data link layer of the OSI model

• It uses MAC addresses to forward data within the network

• Switches are more efficient than hubs as they only send data to the intended recipient

• Examples of switches include Cisco Catalyst series, Netgear ProSAFE switch

Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks.

• AD is used to store information about objects on a network, such as computers, users, and groups.

• It allows administrators to manage and secure resources within a network.

• AD uses a hierarchical structure with domains, trees, and forests to organize objects.

• Examples: Creating user accounts, managing group policies, authenticat

The operating system (OS) is the software that manages computer hardware resources and provides common services for computer programs.

• OS acts as an intermediary between the hardware and software of a computer system

• Examples of popular operating systems include Windows, macOS, and Linux

• OS controls the allocation of memory, processes, and input/output devices