engineering recuitment RPSC Programmer Mock Test 2024 Computer Networks Concept of Layering Data Link Layer
Which of the following statements is/are TRUE?
(i) Efficiency of CSMA/CD is \(\frac{1}{1 + 6.44a}\), where a = Tp/Tt
(ii) Polling works like Time Division Multiplexing
(iii) Maximum efficiency of pure aloha is 36.8%.
1
Only (i) and (iii)
2
Only (ii) and (iii)
3
Only (i)
4
Only (i) and (ii)