School Leaving Certificate (SLC) | Class-10 | Old Question Paper
Subject – Computer Science
Level: SLC/Class-10 | Year: 2069/2013 | RE-334
Full Marks: 50 | Pass Marks: 16 | Time: 1 Hrs 30 Minutes
Download | Question Paper of SLC (Class-10) Computer Science 2069/2013
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Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Group ?A? ? Computer Fundamental (22 Marks)
1. Answer the following questions: [5 X 2 = 10]
a) Write any four advantages of computer network.
b) What is internet? Write the name of any two E-commerce sites.
c) What is computer ethic?
d) What is hardware security? Write any two software security measures.
e) What is computer virus?
(a) Convert as instructed: [2 X 1 = 2]
(i) (684)10 into Octal
(ii) (101011)2 into Decimal
(b) Perform binary calculation: [2 X 1 = 2]
(i) 101 X 11
(ii) Divide 100101 by 110
3. Match the following
Group ?A? Group ?B?
i) RJ-45 a) Multimedia
ii) WAN b) Duplicate copy
iii) Back up c) Fiber optic cable
iv) Microphone d) Twisted pair cable
v) e) Internet
4. Choose and copy the best answer: [4 X 0.5 = 2]
a) Which is not a unguided media?
(i) Fiber optic (ii) Microwave (iii) Infrared (iv) Radiowave
b) Which is the internet service?
(i) IRC (ii) Telnet (iii) E-mail (iv) All of the above
c) Which is not related to multimedia?
(i) Printer (ii) Sound Card (iii) Microphone (iv) CD-ROM
d) Which virus infects boot sector files?
(i) Macro virus (ii) Multipartite virus (iii) Boot sector virus (iv) Program virus
5. Give appropriate technical terms for the following: [4 X 0.5 = 2]
a) Business through internet
b) The software that protects computer from virus
c) Physical layout of LAN
d) A secret word that gives user access to a particular program or computer system
6. Write full form of: [4 X 0.5 = 2]
(i) VOIP (ii) MAN (iii) UTP (iv) WWW
Group ?B? ? Database (10 Marks)
7. Answer the following questions.
a) What is Database? Give two examples.  b) Write any two uses of primary key.  c) What is query? 
8. Choose the correct answer: [4 X 0.5 = 2]
a) Which of the following is not a database application?
(i) Oracle (ii) Foxpro (iii) MS-Access (iv) MS-Excel
b) Memory space consumed by a currency data type maximally is ?..
(i) 2 Bytes (ii) 4 Bytes (iii) 8 Bytes (iv) 1 GB
c) The default data type of MS-Access is ?..
(i) Number (ii) Text (iii) Memo (iv) Auto number
d) Row is called ??
(i) Record (ii) Field (iii) Database (iv) Table
9. Math the following: [4 X 0.5 = 2]
Group ?A? Group ?B?
i) OLE a) Data entry
ii) Hyperlink b) Formatted Hardcopy
iii) Report c) 1 GB
iv) Form d) Up to 255 characters
v) e) Up to 2048 characters
Group ?C? ? Programming (18 Marks)
10. (a) What is meant by mode of data file?  (b) Write any two characteristics of ?C? language.  (c) Write the function of the following statements:  (i) NAME (ii) KILL
11. Write the output of the following program: 
DECLARE SUB NUMBER()
N = 3
C = 1
N = N*10+2
C = C +1
12. Re-write the given program after correcting the bugs: 
REM display Records of students From Data File
OPEN ?STDREC.DAT? FOR INP AS #1
DO WHILE NOT EOF
INPUT #1, RN, N$, AD$, CL, S$
PRINT RN, N$, AD$, CL, S$
13. Study the following program and answer the given questions: [2 X 1 = 2]
DECLARE SUB EXAM (N$)
INPUT ?Enter word?, WO$
FOR I = 1 TO LEN(N$)
PRINT RIGHT$(N$, I)
a) Write the names of two built in functions used in the above program.
b) List the real parameter in the program.
(a) Write a program to find the number of vowels in a input string using ?Function? End Function?. 
(b) Write a program using sub? procedure module to print the series 1,1,2,3,5,8?.. up to ten terms.
(c) Write a program to create a data file ?teldir.dat? to store Name, Address and Telephone Number of employees according to the need of the user.