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In point-to-point message passing, single process sends/receives message to/from another process. There are four communication modes for sending a message: i) Buffered mode
What are the different types of network topologies
three types of network criteria
QUESTION 1 (a) Draw a use-case model for the above system. You must identify all possible actors and use-cases. (b) Assume you are using the Rational Unified Process a
Radio Waves - Frequency ranges: 3 KHz to 1 GHz - Omni directional - Susceptible to interference by other antennas utilizing same frequency or band - Ideal for long-di
what is due care
Q. What is Retransmission timer? Retransmission timer if an ACK is received previous to the timer goes off - destroy the timer if the timer goes off before ACK a
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
Q. Explain the Public-Key Cryptography? Public-Key Cryptography - Each user has the same encryption algorithm and key - Decryption algorithm also key are kept secret
PACKET SWITCHES: To span large distances or several computers, networks must removed shared phase with packet switches. Each switch moves whole packet from one connection to
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