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What are gateways?
Gateways give connectivity among two or more network segments. It is usually a computer that runs the gateway software and gives translation services. This translation is a key in allowing dissimilar systems to communicate on the network.
Deadlock Avoidance To avoid deadlocks two types of strategies are used: 1) Static prevention: It uses V and P operators and Semaphores to allocate and deallocate shared res
Network Layer and Routing As discussed in previous chapters the physical layer provides connection sand services to the data link layer while the data link layer is
Can you define the method of demilitarized zone?
Q Illustrate Return to Zero encoding? - In NRZ-I long strings of 0s may still be a problem - May comprise synchronization as part of the signal for both 1s and 0s - How?
Question 1 Explain FDM and TDM with example Question 2 Define B-ISDN and explain its services Question 3 What is symmetric key cryptography? Describe one symmetric
Question: (a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initia
Q. Illustrate Nonboundary-Level Masking with example? Nonboundary-Level Masking Example IP address 45 123 21 8 Mask 255 192 0 0 Subnet 45 64 0 0 123 0
When an error is discovered the receiver is able to ask the sender to retransmit the entire data unit Error Correction-Forward Error Correction A receiver is able to u
Features 1. Simple to install; 2. Simple to configure; 3. Multiple applications from one user can implement; 4. Multiple users can each use PVM concurrently; 5. C, C++, and
why do we deligate
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