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Q. What are the important benefits of computer network?
Ans: Important benefits of computer networks are:
- Resource sharing
- Higher reliability
- Higher flexibility
- Powerful communication medium
- Lower cost
- Incremental expansion
DNS Message There are the only two kinds of DNS message DNS query and reply messages. Further mote both query and reply message have the same format as shown in figure.
three types of network criteria
TCP creates a reliable data transfer service, in addition to IP''s unreliable best-effort service. Study the related sections of the text, and in your own words, summarize how TCP
Efficiency of a data communications system depends on three fundamental characteristics - Delivery: The system should deliver data to the correct destination. Data should be r
UDP Segment Structure The primary purpose of the UDP protocols is to expose datagram's to the application layer. The UDP protocols does very little and therefore employ
Tree interconnection network Tree interconnection network(TIN)), processors are organized in a whole binary tree pattern.
Acknowledgment number This 32 bit field defines the byte number that the from the segment is expecting to receive the segment is expecting to receive from the other par
Q. Explain the Types of Security Service? Security Services fall into one of the subsequent categories - Confidentiality: Confirms that the info in a system and transm
Q. Explain about Domain Name System? -In the past, mapping of IP addresses was static using a host file -Impossible in today's dynamic environment -Domain Name System (DN
Ethernet Frame Fields Preamble - seven bytes of alternating 0s also 1s to notify receiver of incoming frame and to provide synchronization SFD (Start frame delimiter)
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