Articles for category: Computer Network

Sindhuja Gudala

Packet Flow in the Same Network

For transferring a packet from the source host to the destination host in the network we require both the MAC and IP address of the destination host. ARP (Address Resolution Protocol) is a protocol from the second layer i.e, the Data link layer in the OSI model that connects a dynamic Internet Protocol (IP) address ...

Sushant Gaurav

Frequency Division and Time Division Multiplexing

The signal transmission over various channels can be performed in two different ways namely – Frequency division and Time division multiplexing. In frequency division multiplexing, we transfer many signals at the same time and each source transmits its signals in its allocated range of frequency. In the time division multiplexing, the transmission time is divided ...

Piyush Singhal

Data Link Layer in OSI Model

What is the Data Link Layer Protocol? Some Common Data Link Protocols are: Functions of Data Link Layer 1) Framing and Link Access 2) Reliable Delivery The Data Link Layer provides a guaranteed delivery service, i.e., it transmits network layer datagrams without error. Transmissions and acknowledgments are used to provide a reliable delivery service. A data ...

Trapti Gupta

Piggybacking in Computer Networks

Piggybacking is a process of attaching acknowledgment with the data packet to be sent. It is an efficient solution for reducing the bandwidth utilization of the network. TCP is a full-duplex communication protocol, so piggybacking is used to transmit packets. Introduction to Piggybacking Piggybacking is a process of attaching the acknowledgment with the data packet ...

Trapti Gupta

C Program for File Transfer Using UDP

UDP is an unreliable protocol. It does not create a dedicated path for transmitting packets. So it is a connectionless protocol. Its header size is very small i.e. 8 bytes only. What is UDP? User Datagram Protocol is abbreviated as UDP. UDP works on the transport layer. UDP is a connectionless and unreliable protocol. There ...

Priyanshu Pandey

How to Make Open Ports Secure?

What Are Open Ports and How Do They Work? A port is a communication endpoint where all network communications begin and end. A port recognizes a specific process or service and is assigned a number based on its specialized function. Network ports allow devices to communicate with each other remotely over the internet, regulating how ...

Aditya Saxena

Flooding in Computer Networks

Flooding is a technique of routing in computer networking, in which a sender node transmits packets via all the outgoing links. Flooding is similar to broadcasting in that it happens when sender packets are transferred without routing data to each network node attached. Since flooding naturally utilizes each route in the network, flooding algorithms are ...

Akshay Mishra

Shannon-Fano Algorithm for Data Compression

Lossless compression and lossy compression are two methods that can be used. In contrast to lossless compression, which preserves all data, lossy compression shrinks the size of the data by deleting extraneous information.For lossless data compression of multimedia, the Shannon-Fano Algorithm is an entropy encoding method. It gives each symbol a code depending on how ...

Akshay Mishra

Routed Protocols vs Routing Protocols

A routed protocol allows for data routing. IP and AppleTalk are two examples of routed protocols. An addressing method is necessary for such a protocol. You may determine the network that a host belongs to as well as where that host is located on that network by using the addressing scheme. A routed protocol can ...

Sushant Gaurav

Sliding Window Protocol

The sliding window protocol is a data link layer protocol that is useful in the sequential and reliable delivery of the data frames. Using the sliding window protocol, the sender can send multiple frames at a time. The sliding window protocol uses a mechanism of sequence numbers. The sender associates a sequence number to the ...