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Quick Tech Tip: Overview Of The Network Layer

The network layer provides services to the transport layer through virtual circuits or datagrams. In both cases, its main job is routing packets from the source to the destination. In virtual circuit subnets, a routing decision is made when the virtual circuit is set up. In datagram subnets, it is made on every packet. Many […]

Quick Tech Tip: CDMA – Code Division Multiple Access

CDMA (Code-Division Multiple Access) refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. CDMA, a proprietary standard designed by Qualcomm in the […]

Quick Tech Tip: Encapsulation – What does it mean ?

Encapsulation is not a common word in the English language; however, it is an important phrase in the word of software design, especially in the world of Object Oriented Programming. So what does encapsulation mean ? In computer science, the principle of information hiding means the hiding of design decisions in a computer program, those […]

Quick Tech Tip: Types Of Firewalls

There are several classifications of firewalls depending on where the communication is taking place, where the communication is intercepted and the state that is being traced.

1. Packet Filtering Firewall : A packet filtering firewall will examine the information contained in the header of a packet of information which, is attempting to pass through the […]