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When we surf the Internet, the webpages that we see and the contents that we download generally come from the "surface web". This is the part of the world wide web that is accessible to all with an Internet connection. The Surface Web is huge, but in reality, it covers only 10% of the whole Internet.Beside the Surface Web that is transparent and accessible to all, there are two more levels of the Internet that remain hidden in the background. These two are known as the Deep Web and the Dark Web.The deep web contains the web content that is ... Read More
A VPN connects a private network to another public network, which allows users to transmit and receive data as if their computers were connected to the private network physically.MPLS is a routing technique that is used to improve the speed and control of the network traffic. It speeds up traffic flows by avoiding complex lookups in the routing table at each node as in conventional routing algorithms.Read through this article to find out more about MPLS and VPN and how they are different from each other.What is VPN?VPN stands for virtual private networks. It is a network type that is ... Read More
What is USB?A Universal Serial Bus (USB) is a communication interface that allows devices to communicate with a host controller such as a computer system. It links peripheral devices including digital cameras, mice, keyboards, scanners, printers, media players, flash drives, and external hard drives to a computer.A USB may be used for a multitude of things, including providing electrical power, which is why the USB has replaced an array of interfaces like the parallel and serial ports.USB ports are used to connect peripheral devices to computers in a variety of ways.USB 1.xIt is an external bus standard that supports up ... Read More
Channel allocation techniques are used in radio resource management for wireless and cellular networks to distribute bandwidth and communication channels to base stations, access points, and terminal devices.The objective of channel allocation is to maximize system spectral efficiency in bits/s/Hz/site through frequency reuse while maintaining a high level of service by minimizing co-channel and neighboring channel interference among neighboring cells or networks that share the bandwidth.Channel allocation techniques can be grouped into two categories: Fixed Channel Allocation and Dynamic Channel Allocation.Read through this article to find out how these two channel allocation techniques are different from each other.What is Fixed ... Read More
A Fact Table contains a combination of attributes from completely different dimension table. It helps the users understand and analyze the business dimensions that would help improve the business processes. Fact tables are also known as Reality tables.Dimension tables, on the other hand, help a Fact Table gather the dimensions on the data that needs to be collected.Read through this article to find out more about Fact tables and Dimension Tables and how they are different from each other.What is a Fact Table?In data warehousing, a Fact Table is one that contains the measurements, metrics, or facts of a business ... Read More
Multimedia integrates different forms of content such as text, audio, video, graphics, etc., to form a single presentation. We come across so many different forms of multimedia element on almost every webpage or App that we open. Multimedia is definitely heavy than the traditional static text-based content, but any form of multimedia can immediately attract the users' attention and convey the message quickly.Hypermedia is a mix of hypertext with media such as graphics, sounds, and animations. It can be understood as the improved version of hypertext.Read through this article to find out more about Multimedia and Hypermedia and how they ... Read More
Both Client-Server and Peer-to-Peer networks transfer data from a source to a destination with minimal loss in transmission. Both these networks establish a communication channel through which data transmission takes place, however the channel remains dedicated in case of a Client-Server network, which is not the case with Peer-to-Peer networks.Read through this article to find out how client-server networks differ from peer-to-peer networks.What is a Client-Server Network?The client-server paradigm is a network process communication structure that connects service requestors, clients, and providers. A network or the Internet is used to connect the client and the server.The client-server approach, which also ... Read More
Communication, in general, is the process of transferring data from a source to a destination by using any of the available modes such as audio, video, text or even signals, etc. This communication may be straightforward between one sender and one receiver or it may include multiple senders and receivers. On the basis of the number of senders and receivers involved, a communication can either be "Point-to-Point" or "Multi-point".Read through this article to find out more about these two forms of communication and how they differ from each other.What is Point-to-Point Communication?In telecommunications, a point-to-point connection is a communications link ... Read More
Both VPN and Proxy are used to connect to a remote system where one can access the host system from a remote location. However, VPNs are superior than Proxy servers because a VPN can protect your privacy and security by routing your traffic via a secure VPN server and encrypting it. A Proxy, on the other hand, just routes your traffic via a mediating server and it does not provide any additional security.Read through this article to find out more about VPN and Proxy and how they are different from each other.What is a Virtual Private Network (VPN)?A virtual private ... Read More
Both Substitution Cipher and Transposition Cipher are traditional techniques used in cryptography to encrypt a plaintext into ciphertext in order to prevent it from getting tampered. Read through this article to find out more about Substitution cipher and Transposition cipher and how they are different from each other.What is Substitution Cipher Technique?In the Substitution Cipher technique, each character is substituted with other character/number or other symbol. This technique changes the identity of a character but not its position in the string.A substitution cipher encrypts a text sequence by replacing letters or units of text with other letters or units of ... Read More