Interview Questions and Answers

I will check the network connection and troubleshoot the issue.

• Check if other devices are also affected

• Restart the router/modem

• Check for any loose cables

• Ping the default gateway

• Contact the ISP if necessary

To check internet connection, use ping command or check network settings.

• Use ping command to check connectivity to a specific website or IP address

• Check network settings to ensure correct IP address and DNS settings

• Try resetting modem or router

• Check for any network outages or maintenance in the area

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices on a network.

• DHCP is used to manage and allocate IP addresses in a network.

• It allows devices to obtain IP addresses dynamically instead of manually configuring them.

• DHCP also provides additional network configuration information like subnet mask, default gateway, and DNS server addresses.

• It uses a client-server model, where DHCP servers assign IP ad...read more

DNS stands for Domain Name System. It is a decentralized naming system that translates domain names into IP addresses.

• DNS is used to resolve domain names to their corresponding IP addresses.

• It helps in the efficient routing of internet traffic by translating human-readable domain names into machine-readable IP addresses.

• DNS servers store DNS records that contain information about domain names and their associated IP addresses.

• DNS also supports other types of records like MX r...read more

A router is a networking device that forwards data packets between computer networks.

• Routers operate at the network layer of the OSI model.

• They use routing tables to determine the best path for data to travel.

• Routers can connect multiple networks together, such as a home network to the internet.

• They can also provide security by blocking unwanted traffic.

• Examples of routers include Cisco, Netgear, and TP-Link.

A switch is a networking device that connects devices together on a computer network.

• Switches operate at the data link layer of the OSI model.

• They use MAC addresses to forward data between devices.

• Switches can improve network performance by reducing network congestion.

• Examples of switches include Cisco Catalyst and Juniper EX Series switches.

A router is a networking device that forwards data packets between computer networks.

• Routers operate at the network layer of the OSI model.

• They use routing tables to determine the best path for data to travel.

• Routers can connect multiple networks together, such as a home network and the internet.

• They can also provide security by blocking unwanted traffic.

• Routers can be wired or wireless, and can have multiple ports for connecting devices.