Basic Networking Interview Questions
- How can I put my socket in non-blocking mode?
- How do I monitor the activity of sockets?
- How do you distinguish a DNS problem from a network problem?
- What is the role of TCP protocol and IP protocol?
- Explain the functionality of PING?
- Explain Layers in TCP/IP?
- Describe an Ethernet switch and where it fits into the OSI model?
- Explain how to configure a host network interface (e.g. IP address, netmask, broadcast address)?
- Describe ATM and what are its current advantages and disadvantages?
- Explain the core naming mechanism, Domain Name System (DNS)?
- Describe what a runt, a giant, and a late collision are and what causes each of them?
- Describe UDP and TCP and the differences between the two?
- Can I connect two computers to internet using same line?
- What is DHCP?
- Describe the purpose and basic functionality of things like HSRP, VRRP etc?
- What is a VLAN? What is an ELAN? What is the difference?
- Define the term Protocol?
- What are some of the problems associated with operating a switched LAN?
- What is the difference between MUTEX and Semaphore?
- What is UDP?
- Describe Ethernet packet contents: min/max size, header?
- Describe what a broadcast storm is?
- Describe the Bandwidth Delay problem?
- What is LAN?
- How to get IP header of a UDP message?
- Why do I sometimes lose a server’s address when using more than one server?
- What is priority inversion?
- What is multicasting?
- Describe the OSI model?
- What is your current IP address?
- How can I make my server a daemon?
- What are the maximum distances for CAT5 cabling?
- Define File Transfer Protocol?
- What is the difference Between an Intranet and the Internet?
- Explain the 7 Layers of OSI?
- What is Firewall?
- What is the difference between a repeater, bridge and a router?
- How should I choose a port number for my server?
- Describe TCP/IP and its protocols?
- What sort of cabling is suitable for Fast Ethernet protocols?
- How many bytes are there in an IPX network address?
- How would you define IP address?
- Relate FDDI/ATM/SONET to the OSI model?
- What are RAW sockets?
- What is a Class D IP address?
- What is a message queue?
- What is a network? What are the different kinds of network? Explain them?
- What are network topologies? Explain Ring, Bus and Star topology?
- Explain working of ping, telnet and gopher?
- Describe SONET?
- Describe the principle of multi-layer switching?
- How can I be sure that a UDP message is received?
- Explain IP, TCP and UDP?