General IT helpdesk /IT support /
During any interview, you will face two types of questions one is behavioral and other is technical questions. To qualify for the helpdesk interview, it is important to have a good understanding and knowledge of how to troubleshoot issues in various domains.
Basic Networking topic (TCIP, DHCP, DNS, Zones, Default Gateway, Switch, router, difference between router and switch, VPN, IP, Basic network dos command, Troubleshooting the Lan, Wan network, Protocols )
- What is the OSI framework / model and OSI layers?
- List of the protocols used in OSI layers
- What is a network and network types?
- What is a networking key Components and its Purpose?
- What is the difference between TCP and UDP?
- What is Protocol and Protocol types?
- What is a MAC address, and how is it different from an IP address?
- What is DHCP
- How DHCP Work?
- What is DNS and DNS zones. Benefits of the DNS Zones
- What is the switch and how network Switch work?
- How to troubleshoot when switch is not pingable for level 1?
- What is router and its types. How router is work?
- Difference between Switch and Router
- What is VPN and how it works?
- What is a firewall, and how does it work?
- What is the difference between Bluetooth and Wi-Fi ?
- Networking/Windows Commands For Troubleshooting
- What is Telnet ?
- What is ICMP?