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What is the difference among TFTP and FTP application layer protocols?
The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does not give reliability or security. It uses the fundamental packet delivery services offered by UDP.
The File Transfer Protocol (FTP) is the standard mechanism given by TCP / IP for copying a file from one host to another. It uses the services obtainable by TCP and so is reliable and secure. It establishes two connections (virtual circuits) among the hosts, one for data transfer and another for control information.
The Five steps to data encapsulation (IN ORDER): 1) User information is changed into data. 2) Data is changed into segments. 3) Segments are changed into datagram and pack
BRIDGES: A bridge is a hardware device also needed to connect two LAN code segments to extend a LAN. A bridge uses two NICs to connect two code segments. It listens to all tr
Transmission Control Protocol (TCP) TCP makes the Internet reliable. TCP solves several problems which can occur in a packet switching system. TCP provide the given facilities:
What is the minimum size of MTU bytes is
What is VRC? It is the most common and least costly mechanism for Error Detection. In VRC, a parity bit is added to each data unit so that the total number of 1s becomes even f
What is Forward Error Correction and data words Forward error correction It is the process in which the receiver tries to guess the message by using redundant bits. Da
How does a Token-Passing Protocol works? The token-passing protocol relies on a control signal known as the token. A token is a 24-bit packet that circulates throughout the net
Q. What is Authentication ? - Verification of sender's identity. - Accomplished through a digital signature, which is based on public key encryption/decryption. - Uses re
Explain use of perimeter area?
Question : a) In your view, what are the top three strengths and weaknesses of wireless systems? Rank them in order of priority. What can be done to address the weaknesses?
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