The major difference between HDLC and PPP is that HDLC is the bit oriented protocol, while PPP is the character-oriented protocol. The HDLC and PPP are the crucial data link layer protocols used in WAN (wide area network) where the HDLC can also be implemented with PPP for the efficient results. HDLC describes the encapsulation technique employed on the data in the synchronous serial data link. On the other hand, the PPP protocol deals with the encapsulation of the data transported in the … [Read more...]

The SIP and VoIP are the technologies work for enabling any type of communication over the internet. However, the VoIP is separately used for IP telephony, but SIP is the protocol which handles the overall exchange of multimedia. More specifically, the SIP signalling protocol is the way to standardise the VoIP or IP telephony. The SIP (Session Initiation Protocol) is used to set up the internet telephone calls, video conferencing and other multimedia connections. On the other hand, the Voice … [Read more...]

IGRP (Interior Gateway Routing Protocol) and EIGRP (Enhanced EIGRP) are the two routing protocols used in routing operations. The IGRP is a distance vector interior gateway routing protocols, but the EIGRP incorporates the features of the link state routing with the distance vector routing protocol. There are several differences between the IGRP and EIGRP, priorly IGRP employs a classful routing method while EIGRP is a classless routing protocol. EIGRP provides better support for the vast scale … [Read more...]

The circuit switching and message switching are the distinct techniques employed to connect multiple devices with each other dedicatedly. The significant difference between the circuit switching and message switching is that the circuit switching constructs a dedicated physical connection between the two devices involved in the communication. On the other side, the message switching technique uses a store and forward mechanism for enabling the interaction between the sender and the … [Read more...]

The Hub and Switch are the networking devices which appear to be similar and physically used as a star topology. However, there are several differences between Hub and switch. The prior difference is that logically the hub works like a bus where the same signal is transmitted to all the connections. On the other hand, the switch can provide the communication between any pair of ports. As a result, all the ports in the hub belong to the same collision domain while in switch the ports are operated … [Read more...]

Substitution technique and transposition technique are the fundamental methods of codifying the plaintext message to acquire the respective ciphertext. These two methods are the basic building blocks of the encryption techniques and can also be used together, which is called a product cipher. The essential difference between the substitution technique and transpositional technique is that the substitution technique substitutes the letters of the plaintext from other letters, number and … [Read more...]

Network security has become a crucial part of the modern communication system. The need for network security was arisen to sustain the confidentiality and integrity of the data and guard it against the unauthorised access. The steganography and cryptography are the two sides of a coin where the steganography hides the traces of communication while cryptography uses encryption to make the message incomprehensible. The steganography does not employ changes in the structure of the message. On … [Read more...]

Jitter and latency are the characteristics attributed to the flow in the application layer. The jitter and latency are used as the metrics to measure the performance of the network. The main difference between the jitter and latency lies within their definition where latency is nothing but a delay through the network whereas the jitter is variation in the amount of the latency. The increase in latency and jitter have the adverse effect on the network performance, so it is essential to monitor … [Read more...]

The cloud computing works in a consolidated manner, and the big data comes under the cloud computing. The crucial difference between cloud computing and big data is that cloud computing is used to handle the huge storage capacity, (big data) through extending the computing and storage resources. On the other side, big data is nothing but an enormous amount of the unstructured, redundant and noisy data and information from which the useful knowledge have to be extracted. To perform the above … [Read more...]

Both the Firewall and the Proxy server reside between the network and the local computer which provides the security against the network threats. The firewall and proxy server works in conjunction. Firewall functions at a lower level and can filter all types of IP packets while the proxy server deals with the application level traffic and filter the requests coming from the unknown client. A proxy server can be considered as a part of the firewall. A firewall basically prevents the access of … [Read more...]