ATC India Tower Corporation Technical Support Engineer Interview Questions and Answers

Different network layers include physical, data link, network, transport, session, presentation, and application layers.

• Physical layer: responsible for transmitting raw bits over a communication channel

• Data link layer: responsible for error-free transfer of data between nodes on a network

• Network layer: responsible for routing data packets between networks

• Transport layer: responsible for reliable data transfer between a...read more

Firewall works on multiple layers of OSI model

• Firewall operates on layers 3 (network layer) and 4 (transport layer) of the OSI model

• It can filter traffic based on IP addresses, ports, protocols, and other criteria

• Firewalls can also perform deep packet inspection to detect and block malicious traffic

• Examples of firewall software include Cisco ASA, pfSense, and Windows Firewall

To configure a router, access the router's web interface and enter the necessary settings.

• Connect to the router via Ethernet or Wi-Fi

• Open a web browser and enter the router's IP address

• Enter the login credentials (usually admin/admin)

• Navigate to the settings page and configure as needed

• Save the changes and restart the router

There are several ways to connect a computer to the internet.

• Wired connection through Ethernet cable

• Wireless connection through Wi-Fi

• Mobile hotspot using a smartphone or tablet

• Dial-up connection using a phone line and modem

• Satellite connection

• Broadband connection through DSL or cable modem

TCP/IP is a set of protocols used for communication between devices on the internet. OSI model is a conceptual framework for network communication.

• TCP/IP stands for Transmission Control Protocol/Internet Protocol

• It is a set of protocols that govern communication between devices on the internet

• TCP is responsible for ensuring reliable transmission of data while IP is responsible for routing the data to its destination

• OSI...read more