Found 1301 Articles for MCA

What is Network Virtualization?

Ginni
Updated on 17-Nov-2021 10:45:20

5K+ Views

Network virtualization represents the administration and monitoring of an entire computer network as a single administrative entity from a single software-based administrator’s console.Network virtualization can include storage virtualization, which contains managing all storage as an individual resource. Network virtualization is created to enable network optimization of data transfer rates, flexibility, scalability, reliability, and security. It automates many network management functions, which disguise a network's true complexity. All network servers and services are considered as one pool of resources, which can be used independently of the physical elements.Virtualization can be defined as making a computer that runs within another computer. The ... Read More

What is the Simplified Data Encryption Standard?

Ginni
Updated on 17-Nov-2021 10:44:10

5K+ Views

Simplified Data Encryption Standard (S-DES) is equivalent to the DES algorithm. The SDES encryption algorithm produces an 8-bit block of plaintext (example: 10111101) and a 10-bit key as input and makes an 8-bit block of ciphertext as output. The S-DES decryption algorithm takes an 8-bit block of ciphertext and the same 10-bit key can develop that ciphertext as input and makes the initial 8-bit block of plaintext.These algorithms generate a key and thus encapsulate the message with this key. There are two types of encryptions: asymmetric and symmetric, which are in vogue.Presentation LayerThe presentation layer in S-DES manages the translation, ... Read More

What is UDP?

Ginni
Updated on 17-Nov-2021 10:42:50

717 Views

UDP stands for User Datagram Protocol. It supports a connectionless packet service that provides unreliable 'best effort' delivery. This defines that the packet’s arrival is not protected, nor is the proper sequencing of forwarded packets. An application that does not need an acknowledgment of data receipts, such as audio or video advertising, uses UDP.UDP is also used by applications that frequently transmit a small amount of information at one time. For example, UDP supports a protocol port to differentiate between several programs executing on a single device.Each UDP message includes both a destination port number and a source port number. ... Read More

What is Cyber Security and what are its types?

Ginni
Updated on 17-Nov-2021 10:37:40

1K+ Views

Cyber Security defines the technologies, procedures, and practices created to protect networks, devices, apps, and data from any type of cyber-attacks. Cyber security can be defined as information technology (IT) security.Cyber Security is all about preserving your devices and network from unauthorized access or alteration. The internet is not only the essential source of data, but it is also a channel through which people do business.The goal of cyber security is to protect computers, networks, and software programs from such cyber attacks. Most of these digital attacks are aimed at assessing, altering, or removing sensitive data; extracting money from victims; ... Read More

What is the difference between SNAT and DNAT?

Ginni
Updated on 17-Nov-2021 10:35:30

6K+ Views

Let us begin by understanding what SNAT is.SNATSNAT represents Source NAT. Source NAT is used when an internal user starts a connection with an external Host. Therefore, the layer 3 device on which we already configured NAT, interprets the private IP address of the Host to Public IP. It can also interpret the source port in the TCP or UDP protocol headers.It can create an outbound connection, an ephemeral port is used to support the destination with a port on which to communicate and keep a distinct traffic stream. When these ephemeral ports are used for SNAT, they are known ... Read More

What are the Pros and cons of Virtualization in Cloud Computing?

Ginni
Updated on 17-Nov-2021 10:34:16

4K+ Views

In Cloud Computing, Virtualization is creating a virtual platform of server operating framework and storage devices. This will support the client by supporting various machines simultaneously. It also enables sharing an individual physical example of a resource or an application to several clients.Cloud Virtualizations also handles the workload by changing traditional evaluation and developing it more scalable, economical, and adequate. Virtualizations in Cloud Computing promptly link the essential method of computing. The feature of virtualization is that it enables the distribution of applications to several clients and companies.Cloud Computing can also be referred to as services and applications delivered to ... Read More

What is Cluster Computing?

Ginni
Updated on 17-Nov-2021 10:32:59

18K+ Views

Cluster computing defines several computers linked on a network and implemented like an individual entity. Each computer that is linked to the network is known as a node.Cluster computing provides solutions to solve difficult problems by providing faster computational speed, and enhanced data integrity. The connected computers implement operations all together thus generating the impression like a single system (virtual device). This procedure is defined as the transparency of the system.Advantages of Cluster ComputingThe advantages of cluster computing are as follows −Cost-Effectiveness − Cluster computing is considered to be much more costeffective. These computing systems provide boosted implementation concerning the ... Read More

What is GSM?

Ginni
Updated on 17-Nov-2021 10:30:55

539 Views

GSM represents the Global System for Mobile communication. It is a standard established by the European Telecommunication Standards Institute (ETSI) to define protocols for second-generation (2G) digital mobile networks. It was restored for the first generation (1G) mobile networks. The concept of producing GSM was introduced from a mobile-based mobile radio framework at the Bell Laboratories in the early 1970s.The GSM standard works on three multiple carrier frequencies: the 900 MHz band, which was utilized by the initial GSM system. The 1800 MHz band, which was inserted to provide the multiple subscribers and the 1900 MHz frequency, is used generally ... Read More

What is Spatial Filtering (Beamforming) in Wireless Communications?

Ginni
Updated on 17-Nov-2021 10:28:32

519 Views

Beamforming is also referred to as spatial filtering. It is a signal processing approach used to send or receive radio or sound waves in a directional signal. The applications of beamforming are constructed in radar and sonar systems, wireless connection, and acoustics, and biomedicine supplies.Beamforming and beam scanning are frequently adept by terminology the feed to each component of an array so that signals received or transmitted from all components will be in phase in a specific direction.When transmitting, a beamformer controls the stage and relative amplitude of the signal at each transmitter thus generating a design of effective and ... Read More

What is IrDA (Infrared Data Association)?

Ginni
Updated on 17-Nov-2021 10:27:07

2K+ Views

IrDA represents the Infrared Data Association. It is a universal consortium of hardware and software manufacturers that generates and supports interoperable solutions for infrared (IR) data networking for computer networks, connections, and different networking applications.Infrared communication contains a transceiver (a set of transmitters and receivers) in both devices that connect. Particular microchips support this effectiveness. Further, several devices can need specific software so that the communication can be synchronized.An example is the special provision for IR in Microsoft's Windows 95 operating frameworks. In the IrDA-1.1 standard, the maximum data size that can be sent is 2048 bytes and the maximum ... Read More

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