Model Exam2

Class/Sec : II Year/ M.E Max. Marks: 100

Subject Name : Mobile Computing Duration : 3 Hrs

Subject Code : 241071 Date :

Answer all the questions

PART A (10 x 2 = 20 Marks)

1. Differentiate analog modulation and digital modulation.
2. How are guard spaces realized between users in CDMA?
3. What are the reasons for delays in GSM for packet data traffic?
4. How security is implemented in GSM?
5. Why is the physical layer in IEEE 802.11 subdivided?

 

6. What is DCF?
7. What are the differences between AODV and standard distance vector algorithm?
8. What advantages does the use of IPV6 offer for mobility?
9. Define fast retransmit.
10. What are the classes in WTP?

PART-B (5 x 16 = 80 Marks)

11. (a) Compare and contrast S/T/F/CDMA in detail. (16)

(OR)

(b) Explain in detail about spread spectrum techniques. (16)

12. (a) Explain the functional and protocol architecture of GSM. (16) (OR)

(b) Discuss channel allocation and call routing in detail. (16)

13. (a) (i) Explain IEEE 802.11 MAC functions in detail. (10)

(ii) How do IEEE 802.11 solve hidden terminal problems? Explain

With necessary diagrams. (6)

(OR)

(b) Discuss in detail about HIPERLAN. (16)

14. (a) Explain the following with respect to IP.

(i) Agent Advertisement.

(ii) Tunneling.

(iii) Encapsulation.

(OR)

(b) Discuss about DSDV and DSR. (16)

(OR)

15. (a) Explain the TCP improvement techniques in detail. (16) (OR)

(b) Discuss briefly about WTLS, WSP and WAE in WAP. (16)