American Broadcasting Company Technical Support Engineer Interview Questions and Answers

VPN stands for Virtual Private Network, a secure connection that allows users to access a private network over a public network.

• VPN encrypts data to ensure secure communication over the internet

• It allows users to access resources on a private network remotely

• Commonly used for remote work, accessing geo-restricted content, and enhancing online privacy

• Examples include OpenVPN, Cisco AnyConnect, and NordVPN

DNS stands for Domain Name System, which translates domain names to IP addresses.

• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).

• It helps in locating websites and other resources on the internet.

• DNS operates through a distributed database system, with multiple servers around the world.

• There are different types of DNS records like ...read more

Network troubleshooting involves identifying and resolving issues with network connectivity, performance, or security.

• Identifying the root cause of network issues

• Testing network connectivity using tools like ping or traceroute

• Checking network configurations for errors

• Analyzing network traffic for abnormalities

• Resolving issues with routers, switches, firewalls, or other network devices

DHCP stands for Dynamic Host Configuration Protocol, which is a network management protocol used to assign IP addresses automatically to devices on a network.

• Automatically assigns IP addresses to devices on a network

• Helps in managing and organizing network resources efficiently

• Reduces the need for manual configuration of IP addresses

• Uses a lease mechanism to allocate IP addresses for a specific period of time

OSI layers refer to the Open Systems Interconnection model which defines a networking framework to implement protocols in seven layers.

• OSI stands for Open Systems Interconnection

• There are seven layers in the OSI model: Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Each layer has specific functions and communicates with the adjacent layers

• Example: Physical layer deals with the physical c...read more