BCA-01/DCA-101
June Examination 2016
BCA Pt. I DCA Examination
Introduction to Computer Science
Paper BCA-01/DCA-101
Time 3 Hours Max. Marks 100
Note: The question paper is divided into three sections B and C. Write answers as per given instructions.
Section A 10 × 2 20
(Very Short Answer Questions)
Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum upto 30 words. Each question carries 2 marks.
What is the unit of measuring a clock speed?
Name some examples of operating system.
What is the use of CLS command in MS-DOS?
What are the two most common strategies of contiguous allocation?
Explain the need of code.
What is the full form of LED?
What do you mean by volatile memory?
146
BCA-01/DCA-101 200 3 (P.T.O.)
BCA-01/DCA-101 200 3 (Contd.)
146
(viii) Why security is needed?
What is Internet?
Define the term ISDN.
Section B 4 × 10 40
(Short Answer Questions)
Note: Answer any four questions. Each answer should not
exceed 200 words. Each question carries 10 marks.
What is Software? Compare Application Software and
System Software.
Explain the working principle of Search Engine.
Differentiate between Simplex, Half Duplex and Full Duplex
Mode.
Write down the steps to change the Desktop and
Screensaver.
Discuss the role of UNICODE in Java.
Discuss the memory management algorithms with example.
Write short note on Magneto-Optical disc storage.
Explain the characteristics and functions of MIS.
BCA-01/DCA-101 200 3
146
Section C 2 × 20 40
(Long Answer Questions)
Note: Answer any two questions. You have to delimit your each
answer maximum upto 500 words. Each question carries
20 marks.
10) Define Operating System. Distinguish the features of Disk
Operating System and Windows Operating System.
11) Describe the main categories of Printers.
12) What are the advantages of E-commerce? Discuss various
security threads to E-Commerce.
13) Write short note on the following:
Firewall
LAN, MAN and WAN