Printed Pages: 1 Sub Code: RCAE15
Paper Id: 214430 Roll No. _____________________
MCA
(SEM IV) THEORY EXAMINATION 2017-18
MOBILE COMPUTING
Time: 3 Hours Total Marks: 70
Note: Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
1. Attempt all questions in brief. 2 x 7 = 14
(a) What is Bandwidth?
(b) Write down the formula for data rate for noisy channel.
(c) Define the Wireless Media.
(d) What do you mean by Wi-Fi?
(e) What do you mean by Wireless Body Area Network?
(f) What do you mean by Wireless Ad-Hoc Network?
(g) What is Wireless Sensor Network?
SECTION B
2. Attempt any three of the following: 7 x 3 = 21
(a) Explain the various features of CDMA.
(b) Explain the Wireless Communication Problems.
(c) Differentiate fix channel allocation scheme and dynamic allocation scheme.
(d) Explain the MAC protocols in details.
(e) Explain the Dynamic Source Routing (DSR) protocols.
SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
(a) What is Mobile Computing? Explain the various application of Mobile Computing?
(b) Explain Space Division Multiple Access technique in Wireless Telephony.
4. Attempt any one part of the following: 7 x 1 = 7
(a) Explain CODA file System and its various features.
(b) Explain Adaptive Clustering and its working for mobile wireless network.
5. Attempt any one part of the following: 7 x 1 = 7
(a) Explain the Transaction Processing in Mobile Computing.
(b) What do you mean by Data Replication? Classify the Data Replication?
6. Attempt any one part of the following: 7 x 1 = 7
(a) Explain Security Threats in Mobile Agent Computing.
(b) Explain the various Mobile Agent security issues in Mobile Computing.
7. Attempt any one part of the following: 7 x 1 = 7
(a) Explain Destination Sequence Distance Vector Routing (DSDV) algorithm.
(b) Explain the various layers of WAP Architecture.
Thank You!
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