ARP and RARP both are the Network layer protocol. Whenever a host needs to send an IP datagram to another host, the sender requires both the logical address and physical address of the receiver. The dynamic mapping provides two protocols ARP and RARP. The basic difference between ARP and RARP is that ARP when provided with the logical address of the receiver it obtains the physical address of the receiver whereas in RARP when provided with the physical address of the host, it obtains the … [Read more...]

FTP and TFTP both are the application layer protocols. Both are used to transfer a file from client to server or from the server to the client . But FTP is more complex than TFTP. There are many differences between FTP and TFTP, but the major difference between FTP and TFTP is that FTP establishes two connection for transferring a file between client and server that are TCP's port 20 for data connection and TCP's port 21 for the control connection. On the other hand, TFTP uses the only single … [Read more...]

In Computer Networks, the term unicast and multicast are the information transmission methods. In unicast, one station transfers the information to only one receiver station. In multicast, the sender transfers the information to a group of interested receiver stations. The fundamental difference between unicast and multicast is that unicast is one-to-one communication and multicast is a one-to-many communication process. Let us study in brief the difference between unicast and multicast … [Read more...]

Bridge and gateway, are the backbone devices of the networking. A "bridge" operates on two layers, a physical layer, and a data link layer. A "gateway" operates on all the seven layers of the OSI model. The primary difference between a bridge and a gateway is that a "bridge is used only to transfer the frame to the expected destination, in a most efficient path". A gateway "converts the format of the packet in one protocol to the format of the packet in another protocol". Let study, the … [Read more...]

"Go-Back-N Protocol and "Selective Repeat Protocol" are the sliding window protocols. The sliding window protocol is primarily an error control protocol, i.e. it is a method of error detection and error correction. The basic difference between go-back-n protocol and selective repeat protocol is that the "go-back-n protocol" retransmits all the frames that lie after the frame which is damaged or lost. The "selective repeat protocol" retransmits only that frame which is damaged or … [Read more...]

In the previous article, we have discussed Serial and Parallel Transmission. As we know in Serial Transmission data is sent bit by bit, in such a way that each bit follows another. It is of two types namely, Synchronous and Asynchronous Transmission. One of the major differences is that in Synchronous Transmission, the sender and receiver should have synchronized clocks before data transmission. Whereas Asynchronous Transmission does not require a clock, but it adds a parity bit to the data … [Read more...]

The protocols TCP and UDP are the two TCP/IP transport layer protocols. There exist some similarities and dissimilarities between the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). One of the differences is that TCP is a connection-oriented protocol as it establishes an end to end connection between computers before transferring the data. On the other hand, UDP is a connection-less protocol since it does not determine the connection before sending data. The TCP and UDP … [Read more...]

For transferring data between computers, laptops, two methods are used, namely, Serial Transmission and Parallel Transmission. There are some similarities and dissimilarities between them. One of the primary difference is that; in Serial Transmission, data is sent bit by bit whereas, in Parallel Transmission a byte (8 bits) or character is sent at a time. The similarity is that both are used to connect and communicate with peripheral devices. Furthermore, the parallel transmission is … [Read more...]

Most of us get confused between the terms Internet and Intranet. Although there exist a lot of disparity between them, one of the differences is that the Internet is open to all and can be accessed by everyone whereas, Intranet requires authenticated login as an organization privately owns it. As the internet is open for all, there was a need to develop a network which would specifically work for a certain range like within an organization or private community, school, college, university, … [Read more...]

The “Antivirus” and “Internet Security” are the software that protects the user from malicious programs by blocking and removing them. There are some similarities and dissimilarities between them. One of the major differences is that Antivirus protects the computer from viruses whereas, Internet Security provides protection from spyware, viruses, phishing, spam, and email attachments. Internet security is considered as an umbrella term for the division of computer security that handles the … [Read more...]