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Commonly asked Networking Interview Questions : 

  • Define Network?
  • What is Protocol?
  • What is a Link?
  • What is a node?
  • What is a gateway or Router?
  • Name the factors that affect the performance of the network?
  • What is Round Trip Time?
  • List the layers of OSI?
  • Which layers are network support layers?
  • Which layers are user support layers?
  • What is Pipelining ?
  •  What is Piggy Backing?
  •  What are the two types of transmission technology available?
  • What is Bandwidth?
  • Explain RIP (Routing Information Protocol)
  • What is subnet?
  • What is MAC address?
  • What is multiplexing?
  • What is simplex?
  • What is half-duplex?
  • What is full duplex?
  • What is sampling?
  • What is Asynchronous mode of data transmission?
  • What is Synchronous mode of data transmission?
  • What are the different types of multiplexing?
  • What are the different transmission media?
  • What are the duties of data link layer?
  • What are the types of errors?
  • What do you mean by redundancy?
  • Define parity check.
  • Define cyclic redundancy check (CRC).
  • What is hamming code?
  • Define stop and wait ARQ.
  • What do you mean by network control protocol?
  • What do you mean by CSMA?
  • What do you mean by Bluetooth?
  • What is IP address?
  • What do you mean by ALOHA ?
  • What is Firewalls?
  • What is Repeaters ?
  • What is Bridges?
  • What is ICMP?
  • What is FDM?
  • What is WDM?
  • What is TDM?
  •  List the steps involved in creating the checksum.
  • Compare Error Detection and Error Correction:
  • What are the protocols in application layer ?
  • What are the protocols in transport layer ?
  • What do you mean by client server model ?
  • What is TELNET ?
  • What is Hypertext Transfer Protocol(HTTP) ?
  • What is World Wide Web ?
  • What is Beaconing?
  • What is RAID?
  • What is NETBIOS and NETBEUI?
  • What is difference between ARP and RARP?
  • What is the minimum and maximum length of the header in the TCP segment and IP datagram?
  • What are major types of networks and explain?
  • What are major types of networks and explain?
  •  What is mesh network?
  • What is difference between baseband and broadband transmission?
  • What is packet filter?
  • What is traffic shaping?
  • What is multicast routing?
  •  What is Kerberos?
  • What is passive topology?
  • What are the advantages of Distributed Processing?
  • Name the factors that affect the reliability of the network?
  • When a switch is said to be congested?
  • How many numbers of addresses are usable for addressing in a Class C network?
  • How are the data units at Application layer is called?
  • What protocol is used by DNS name servers? Justify.
  • Which of the following is used to direct a packet inside an internal networks?

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