CS6551 CN 2marks-16marks, Question Bank, CN Short Answers – CSE 4th SEM Anna University


CS6551  CN 2marks-16marks

Anna University Regulation 2013 Computer Science Engineering (CSE) CS6551  CN 2marks & 16marks for all 5 units are provided below. Download link for CSE 4th SEM CS6551  COMPUTER NETWORKS Short answers, Question Bank are listed down for students to make perfect utilization and score maximum marks with our study materials.




1. What is mean by data communication? Data communication is the exchange of data (in the form of 1s and 0s) between two devices via some form of transmission medium
Data communication is the exchange of data (in the form of 1s and 0s) between two devices via some form of transmission medium (such as a wire cable).
2. What are the three criteria necessary for an effective and efficient network?
The most important criteria are performance, reliability and security. Performance of the network depends on number of users, type of transmission medium, the capabilities of the connected h/w and the efficiency of the s/w. Reliability is measured by frequency of failure, the time it takes a link to recover from the failure and the network’s robustness in a catastrophe. Security issues include protecting data from unauthorized access and viruses.
3. What are the three fundamental characteristics determine the effectiveness of the data communication system?
The effectiveness of the data communication system depends on three fundamental characteristics: Delivery: The system must deliver data to the correct destination. Accuracy: The system must deliver data accurately. Timeliness: The system must deliver data in a timely manner.
4. What are the advantages of distributed processing?
Advantages of distributed processing include security/encapsulation, distributed databases, faster problem solving, security through redundancy and collaborative processing.
5. Why are protocols needed?
In networks, communication occurs between the entities in different systems. Two entities cannot just send bit streams to each other and expect to be understood. For communication, the entities must agree on a protocol. A protocol is a set of rules that govern data communication.
6. Why are standards needed?
Co-ordination across the nodes of a network is necessary for an efficient communication. If there are no standards, difficulties arise. A standard provides a modelor basis for development to which everyone has agreed

8. What is the difference between a passive and an active hub?
An active hub contains a repeater that regenerates the received bit patterns before sending them out. A passive hub provides a simple physical connection between theattached devices.
9. Distinguish between peer-to-peer relationship and a primary-secondary relationship.
Peer-to-peer relationship: All the devices share the link equally.
Primary-secondary relationship: One device controls traffic and the others must transmit through it.
CS6551  CN Unit 1 2marks & 16marks – Download Here
CS6551  CN Unit 2 2marks & 16marks – Download Here
CS6551  CN Unit 3 2marks & 16marks – Download Here
CS6551  CN Unit 4 2marks & 16marks – Download Here
CS6551  CN Unit 5 2marks & 16marks – Download Here
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Related Links
For CS6551  CN Previous Year Question Papers – Click here
For CS6551  CN Important Questions/Answer Key – Click here
For CS6551  CN Lecture Notes – Click here
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