Software Defined Networking SDN

Software Defined Networking SDN A centralized structure for the network that can communicate and command the rest of the network. Software defined network enables the network to be intelligent, centrally controlled and programmable using software. SDN controllers are used to…
Protocol

Protocol It is a language to transfer information  between two or more people / devices. A protocol is a set of mutually accepted rules that governs the communications between computers on a network. A protocol defines What is communicated How…
Big Data

What is Big data ? Big data is so large, growing exponentially with time or complex that it’s difficult or impossible to process using traditional methods. Big Data Uses ? Product Development Customer Experience Machine Learning Marketing campaigns Identify disease…
What is Data Center

Data Center A data center consists of hardware such as server racks and power distribution units, software such as server operating systems and network monitoring tools. A data center is a facility that centralizes an organization’s IT operations and equipment,…
Twisted Pair Cable

Twisted Pair Cable Guided metallic transmission media. Twisted pair cable is a form of wiring in which two conductors are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources and crosstalk from neighboring conductors. Unshielded…
ISM Frequency Band

ISM Frequency Band The ITU (International Telecommunication Union) had originally reserved a portion of the RF spectrum globally for industrial, scientific and medical applications. Such as process heating, microwave oven, and medical diathermy equipment etc. The main feature of the…
Transmission medium

Transmission Media It is a path through which information signal travels from source to destination. It is also known as Transmission Line or Transmission channel. It is further divided into two categories Guided Media. Unguided Media. Guided / Bounded /Wired…
Noise

Noise Noise or Electrical Noise is any unwanted electrical signal interferes or distorts the information signal. It affects the signal inside or outside the equipment and generates error. It affects both analog and digital signal and quality of information signal…
WiFi direct

WiFi Direct WiFi Direct™ enables devices to establish a direct WiFi connection over which they can send and receive files. WiFi Alliance developed the WiFi Direct standard. It is ad hoc networking and enable devices to connect to each other…
Bluetooth and Ad hoc Network

    Ad hoc Network. Ad Hoc network is a decentralized wireless network used for communication for a limited time period.   Piconet. A piconet is a Ad hoc using Bluetooth technology. One device act as a Master and others…
Cloud Computing

Cloud Computing Cloud computing is a computing infrastructure where a large pool of system are connected to internet for application, data and storage services. Pay as per use model Prerequisite:  Operating system, online storage Public Cloud Public clouds are owned…
Cloud Storage / Online Storage

Cloud Storage / Online Storage Cloud storage is a model in which data stored on remote servers which are accessible by using internet. These are the storage devices available on Network. Cloud Cloud is a computing infrastructure located anywhere in the…
VoIP Voice Over Internet Protocol

VoIP Voice Over Internet Protocol   Topics PSTN VoIP VoIP Architecture Codec VoIP Gateway Signalling Protocols VoIP Terminals Advantages and Disadvantages PSTN Public Switched Telephone Network It is known as landline telephone system. It was designed for purely analog voice…
Collision Domain and Broadcast Domain

Video Contents Collision Domain Collision domain is a network segment in which collision can happen. It is a part of network where packet collision can occur. Collision domain applies in wireless networks and early version of ethernet networks. Collisions will…
Network Components

Network Components Data It is the information stored and processed by a computer. Node Every device on a network which has a unique logical address or IP. Client A client is a node which takes services from another node. Server…
WiFi Wireless Fidelity

Wireless Fidelity. Th Brand name “WiFi” is used by WiFi alliance to describe WLAN products which follow IEEE 802.11 specification. WiFi Alliance. “Wi-Fi CERTIFIED” is a brand name of WiFi Alliance. It ensures the devices of different vendors are inter operable.…