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Question:
(a) With the help of a diagram, describe a typical DNS system.
(b) Using signal sequence or state transition diagrams, illustrate the following scenarios:
i. TCP connection set-up ii. Cumulative Acknowledgement (Given that Seq = 152, Data=8 bytes and 16 bytes) iii. Termination of a connection
(c) Describe the mechanism that is used to perform flow control in TCP.
(d) State the 3 major entities that consists the Electronic Mail system.
(e) For the network below (link costs shown), use the Link State algorithm (Dijkstra) to calculate the least cost route from C to all other nodes.
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
Define the terms Unicasting, Multiccasting and Broadcasting? If the message is sent from a source to a one destination node, it is called Unicasting. If the message is sent
In slotted Aloha system, it has been measured that 70% of slots are occupied by frames (i.e. the remaining slots are empty). a) How many frames need to be transmitted, on aver
Q. How is computer networks used in Financial services? Financial services: Today's financial services are totally depended on networks. Application includes credit history
Enumerate the concept of IP address The router must have an IP address of the same network (194.62.15.x in this case) for the convenience of the entire network to use the servi
Explain the term - primary memory and hard disk A peculiar situation arises when the existing server arrives at a stage when it cannot handle the requests quickly and most of i
what is inheritance in computer systems special permissions?
ENTERPRISE NETWORKING 1. Explain that what is a cable? Classify different types of cables. 2. Elaborate switch? Write down the functionalities of switch. 3. Describe rout
Overhead SONET overhead is not added as headers or trailers as we have seen in other protocols. Instead SONET insert overhead at a variety of location in middle of the f
The Internet Layer The internet layer is responsible for routing the data packets to the appropriate destination. Internet protocol (IP) is responsible for ensuring dat
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