Network Engineer Interview Questions for IT freshers
Here are some of the interview questions asked during the interview session of Network Engineer.
1.Define DNS? What is the use?
DNS is Domain Name System. It is middle portion of the Internet that gives you a strategy to match names of website you search with the numbers of that website’s address.
2.Name the LAN cables type used?
Two types of LAN cables used are Cat5 and Cat6. Cat5 supports speed 100Mbps and Cat6 supports speed 1Gbps.
3.Define Link?
Link means the connectivity between the two devices. It includes the cables types and protocols used for this communication.
4.Define LAN?
LAN refers to Local Area Network. It denotes the connection between the computer and other network devices located within an area.
5. Define cross table.
Cross table is the kind connection between devices of similar type for their communication without the use of switch.
6.Define WAN?
WAN is Wide Area Network. WAN is a computer network that spreads over the greater distance.
7. What are the layers in the OSI reference model?
OSI model has 7 layers. They are physical layer, data-link layer, network layer, transport layer, session layer, presentation layer and application layer.
8. In which layer of OSI model, gateway works?
Transport layer
9. Distinguish between forward lookup and reverse lookup?
Forward lookup used to convert names to IP addresses. Reverse lookup used to convert IP addresses to names.
10. Define router. Give fundamental roles.
The router is used to create the communication between the different networks which is a layer 3 network device. Its fundamental roles include
1)Inter-network communication
2)Packet forwarding
3)Packet filtering and best path selection
11. Name the parameters for best path selection of router?
The parameters for best path selection of router includes
- Minimum AD
- Lowest metric value
- Longest prefix match
12. Define network topology.
Network topology denotes the computer network layout. It displays the way devices and cables are physically framed and the way they connect to each other.