Networking Interview Questions For Freshers
  1. What is an IP address and how is it used in networking?
  2. What is a MAC address and how is it used in networking?
  3. How does DNS work in networking?
  4. What is the difference between a router and a switch?
  5. How do you configure a basic wireless network?
  6. What is a subnet mask and how is it used in networking?
  7. How do you troubleshoot basic network connectivity issues?
  8. What is a firewall and how is it used to secure a network?
  9. What is the difference between TCP and UDP protocols in networking?
  10. What is the difference between a hub and a switch?
  11. How does a packet move from one network to another?
  12. What is a gateway and how is it used in networking?
  13. How do you configure a static IP address on a network?
  14. What is a broadcast address and when is it used in networking?
  15. How do you determine the speed and duplex settings of a network interface?
  16. How do you troubleshoot DNS resolution issues?
  17. What is NAT and how is it used in networking?
  18. How do you configure port forwarding on a router?
  19. What is a MAC table and how is it used in networking?
  20. What is the difference between a managed switch and an unmanaged switch?
  21. What is a network topology and what are the different types?
  22. What is the maximum length for a Category 5e Ethernet cable and why is it important?
  23. How do you configure a wireless access point (WAP)?
  24. What is a default gateway and why is it important in networking?
  25. How do you troubleshoot DHCP lease issues on a network?
  26. How does a unicast packet differ from a multicast packet?
  27. What is a broadcast storm and how do you prevent it?
  28. What is a crossover cable and when is it used in networking?
  29. How do you determine the bandwidth requirements for a network?
Networking Intermediate Interview Questions
  1. How does a network switch work and what are its features?
  2. How does a router work and what are its features?
  3. What is VLAN and how is it used to segment a network?
  4. How do you configure Quality of Service (QoS) on a network?
  5. What is a VPN and how is it used to secure a network?
  6. What are the different types of wireless encryption and how do they work?
  7. How does a load balancer work in networking?
  8. How do you troubleshoot advanced network connectivity issues?
  9. How does multicast work in networking?
  10. What is a Proxy Server and how is it used in networking?
  11. What is the difference between Layer 2 and Layer 3 switches?
  12. How does a network firewall work and what are the different types?
  13. How do you configure a virtual LAN (VLAN) on a switch?
  14. What is a routing protocol and how is it used in networking?
  15. How do you configure a site-to-site VPN?
  16. What is an intrusion detection system (IDS) and how is it used in networking?
  17. How do you troubleshoot routing issues on a network?
  18. What is a load balancer algorithm and how is it used to distribute traffic?
  19. How does a network address translation (NAT) device work?
  20. How do you configure a dynamic host configuration protocol (DHCP) server?
  21. What is the difference between a stateful firewall and a stateless firewall?
  22. What is a network segment and how is it used to improve performance?
  23. How do you configure link aggregation (LAG) on a switch?
  24. What is a virtual private LAN service (VPLS) and how is it used in networking?
  25. How do you troubleshoot issues with dynamic routing protocols?
  26. What is a route reflector and how is it used in large-scale networks?
  27. What is a network tap and how is it used in network monitoring?
  28. How do you configure access control lists (ACLs) on a router?
  29. What is the difference between SSL and TLS and how are they used in networking?
  30. How do you configure a wireless network to use WPA3 encryption?
Networking Interview Questions For Experienced
  1. How does BGP work and what is its role in the internet routing?
  2. What is MPLS and how is it used in networking?
  3. How does SDN (Software-Defined Networking) work and what are its benefits?
  4. How does OSPF work and what is its role in the internet routing?
  5. What is a Content Delivery Network (CDN) and how is it used in networking?
  6. What is a Software Load Balancer and how is it different from a hardware load balancer?
  7. How does network virtualization work and what are its benefits?
  8. How do you configure a wireless mesh network?
  9. What are the different types of network attacks and how do you defend against them?
  10. What is a software-defined WAN (SD-WAN) and how is it used in networking?
  11. How does OpenFlow work and what is its role in SDN?
  12. What is a software-defined data center (SDDC) and how is it different from a traditional data center?
  13. What is a network function virtualization (NFV) and how is it used in networking?
  14. How does a data center fabric work and what are its benefits?
  15. What is a next-generation firewall (NGFW) and how is it used in networking?
  16. How do you configure network segmentation using micro-segmentation?
  17. What is a software-defined perimeter (SDP) and how does it improve network security?
  18. How do you configure policy-based routing (PBR) on a network?
  19. What is a data center interconnect (DCI) and how is it used to connect multiple data centers?
  20. What is a network overlay and how is it used to improve network scalability?
  21. How do you troubleshoot BGP routing issues on a network?
  22. What is a software-defined wide area network (SD-WAN) and how does it improve network performance?
  23. How do you configure network address translation (NAT) for overlapping IP addresses?
  24. What is a content delivery network (CDN) and how is it used to improve website performance?
  25. How do you design a network to prevent distributed denial-of-service (DDoS) attacks?
  26. How does an internet exchange point (IXP) work and what is its role in the internet?