Practice DAY 2

1. Answer the following questions:
(a) What do you mean by computer security? List out some of the hardware and software security to protect the computer.
(b) What do you mean by communication?
(c) What is an FAQ? Illustrate any two services provide by internet.

2. State whether the following statements are true or false:
(a) Telephone is the example of simplex communication.
(b) Modem combines the analog and digital signals and sends through internet.

3. Select the best alternative from the options given:
(a) One of the benefits of using network is:
 (i) Easy access of program and information.
  (ii) The ability to share peripheral devices.
  (iii) Both of the above
  (iv) None of the above

(b) CU-SEE Me is an example of
 (i)teleconferencing (ii) videoconferencing  (iii) NOS  (iv)  None of bove

(c) Network topology that works with the help of single back bone cable is:
  (i)Star  (ii) Ring   (iii) Linear  (iv) Bus

4.Fill in the blanks with the most appropriate word/s:
(a) Checking logical and physical problem of the disk is done using.................
(b).................card captures movies or pictures from external devices like T.V ,VCR, etc.
(c) ...............buying and selling product and service online/
(d) ...............converts digital into analog signal and vice versa.

5. Give the appropriate technical terms:
(a) Set of rules for govern transmission of data in the computer network.
(b) The law that governs the legal issue of cyber space.

6. Write the full form of the following terms:
(i) ASCC (ii) ASCII  (iii) CD-ROM  (iv) CPAV

7. Find out the output of the following program.

DECLARE SUB RESULT( )
CALL RESULT
END
SUB RESULT ( )
  LET a$="Arjun"
  FOR c=1 TO LEN(a$)
    r=c MOD 2
    IF r=0 THEN
        PRINT UCASE$(MID$(a$,c,1))
     ELSE
       PRINT LCASE$(MID$(a$,c,1))
    END IF
  NEXT c
END SUB

8.
(a) Write a program to store customer name,address and previous meter reading and current meter reading consumed in home in a file "NEA.DAT".
(b) Write a program using SUB....END SUB to generate the series 2     8     18    32   ......up to 10 th terms

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