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What is logical link control?
One of two sublayers of the data link layer of OSI reference model, as explained by the IEEE 802 standard. This sublayer is responsible for maintaining the link among computers when they are sending data across the physical network connection.
Reliable data transfer over a perfectly reliable channel rdt 1.0 First all consider the simplest care in which the underlying channel perfectly reliable. The protoco
what is end to end and host to host?
The Network Control Unit (NCU) is a field panel housing electronic modules, terminal blocks, and signal conditioners (pneumatic, linevoltageand electronic) all inside a one enclosu
State the benefits of Infrared light Infrared light does not penetrate walls or other opaque objects. This has two benefits: First, infrared communications can be more simply
Define the term - Proxy servers These types of firewalls have been further classified into two types: application level gateways and circuit level gateways. The application
Firewalls After several security related internet newsgroups started overflowing with posts it becomes clear something hand to done to help secure networks. The first
What are the Internal Threats Internal security problems are probably the most common. One never knows what someone is going to do. Even the most loyal employees or workers can
Ping and Traceroute are used by ICMP for Testing. Destination Unreachable messages are obtained by a router when it does not have a route to the network.
100Base-TX Uses two category 5 UTP cable pairs or else two STP cable pairs to connect stations to a hub (star) One pair holds frames from station to hub one pair from
The major features of TCP are following: Reliability : TCP ensures that any data sent by a sender arrives at the destination as it was sent. There cannot be any data loss or mo
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