Networking Interview Questions For Freshers
Categories: Hardware & Networking
Q1. What is a network? Ans. A network consists of two or more separate devices linked together such that they can communicate. Networks can be classified according to different criteria such as scope, type of connection, functional relationship, topology, or function, among others. Q2. What are the different types of networks? Ans. Considering the size or span of a network, we can classify them as follows: a. PAN (Personal Area Network) – PAN is made up of devices used by a single person. It has a range of a few meters. b. WPAN (Wireless Personal Area Network) – It is a PAN network that uses wireless technologies as a medium. c. LAN (Local Area Network) – LAN is a network whose range is limited to a relatively small area, such as a room, a building, an aeroplane, etc. d. WLAN (Wireless Local Area Network) – WLAN is a LAN network that uses wireless means of communication. It is a widely used configuration due to its scalability and because it does not require the installation of cables. e. CAN (Campus Area Network) – A network of high-speed devices that connects LANs in a limited geographical area, such as a university campus, a military base, etc. f. MAN (Metropolitan Area Network) – MAN is a high-speed (broadband) network providing coverage in a larger geographic area than a campus, but still limited. Q3. What is Network Cabling? Ans. Network cables can connect two computers or computer systems directly. A cable is a cord that is made up of different conductors, which are insulated from each other. This cord is usually protected by a wrap for better strength and flexibility. Q4. What are the different types of network cables used in networking? Ans. The different types of cables used in networks are – a. Unshielded Twisted Pair (UTP) Cable b. Shielded Twisted Pair (STP) Cable c. Cable Installation Guides d. Coaxial Cable e. Fibre Optic Cable f. Wireless LANs Q5. What is a ‘subnet’? Ans. A ‘subnet’ is a generic term for a section of an extensive network, usually separated by a bridge or a router. It also works for the network’s broadcast domains, manages traffic flow, and helps improve network performance. Uses of the subnet in networking include: a. Relieving network congestion b. Reallocating IP addresses