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The Physical layer deals with the definite physical medium and the method of transporting 1s and 0s.
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
iLab 2: Office Network Expansion Connect to the iLab here. Submit your assignment to the Dropbox located on the silver tab at the top of this page. (See "Due Da
Briefly write functionalities of different OSI layers? The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows: 1. Physical Layer:
CAUSES OF FAILURES Every failure has a well-defined cause. Any system or device has an inherent strength or capacity to resist failures. This depends on design, material, man
Q. Explain about Star Backbone network? - Collapsed or switched backbone - Backbone is just one switch that connects LANs - Utilized as distribution backbone inside a bui
SONET Frame Format SONET uses a basic transmission rate of STS -1 that is equivalent to 51.84 mbps. Higher level signals are integer multiples of the base rate. For exa
Is personal firewall actually firewalls?
What is Stop-and-Wait Protocol? In Stop and wait protocol, sender sends single frame, waits unless it receives confirmation from the receiver (okay to go ahead), and then sends
Acknowledgment number This 32 bit field defines the byte number that the from the segment is expecting to receive the segment is expecting to receive from the other par
Q. Use of Infrared? - Frequencies among 300 GHz and 400 THz - Short-range communication - High frequencies can't penetrate walls - Necessitate line-of-sight propagati
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