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Q. What is Multimode Graded-Index Fiber?
- Ever since the core density decreases with distance from the centre the light beams refract into a curve
- Eliminates problem with a few of the signals penetrating the cladding and being lost
- As well signals intersect at regular intervals
Transparent Bridges & Learning Bridges - Builds table by examining destination as well as source address of each packet it receives - Learning bridges - If address is not
Hub A hub is a small box that connects individual devices on network so that these devices can communicate with each other. Hub is an inexpensive device. It is comm
What is Message Oriented Middleware (MOM)? Ans) MOM permits general purpose messages to be exchanged in a Client/Server system using message queues. Applications communicate ove
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
Question 1 Discuss the following Evolution of Data Communication Elements of Data Communication System Question 2 Explain the following
Q. Illustrate Stop-and-Wait Automatic Repeat request? - Simplest flow as well as error control mechanism - The sending device keeps a duplicate copy of the last frame transm
What is a Counter A software code that indicates how many times a site has been visited. It gets automatically updated and is usually represented by a small rectangle with n
Consider the site-to-site VPN scenario shown in Figure 2. Let's deploy the AH protocol on the two VPN routers so that no desktop on the two sites need to do any AH operations. Assu
Get the network design for a company
How to Configure the Ethernet Interfaces on the Host PCs Configure the Ethernet interfaces of PC1, PC2, PC3, PC4, PC5, and PC6 with the IP addresses and default gateways indica
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