"Computer Networks is one of the most  important subject of Computer Science. Lot of questions are asked in different exam like GATE, NET from this subject. If students want to make their career in networking filed and want to become Network Administrator, System Administrator then they should have a good knowledge of Computer Network subject.  In different certification exams like CCNA questions are asked from this subject. Any way in this post I am telling about some basic level questions from Computer Network. Students from Computer Science field should have awareness about these questions."



In this post there are some questions related to Concept and working issues at Data Link Layer.


Question 1: What do you understand by Data Link Layer in TCP/IP Model?



Question 2: Explain the different design issues and responsibilities at data link layer.



Question 3: Explain the term framing, physical addressing,flow control,error control,access control and synchronization with respect to data link layer.



Question 4: Explain different Error Detection Techniques at data Link Layer.



Question 5: Explain the term Hamming distance and Parity Bit with example.



Question 6: What do you understand by Cycle Redundancy Check? Explain the performance issues of CRC.



Question 7: Explain the Concept of Stop and Wait Protocol.



Question 8: Explain the Concept of Sliding Window Protocol.



Question 9: Explain Piggybacking Concept.



Question 10: Explain Static and Dynamic Channel Allocation Methods at DLL.


Part 2

Question 1: Explain Stop and wait ARQ Protocol.

Question 2: Explain Go- Back- N ARQ Protocol.

Question 3: Explain Selective Repeat ARQ Protocol.

Question 4: Explain HDLC Protocol and Point to Poin Protocol at data Link Layer.

Question 5: Explain Pure Aloha and Slotted Aloha.

Question 6: Explain the Ethernet IEEE 802.3 standard.

Question 7: What is CSMA Protocol? Explain Different types of CSMA?

Question 8: Explain CSMA/CD techniques in detail.

Question 9: Explain the Binary Exponential Backoff Algorithm.

Question 10: Explain MAC and its functions at data link layer.