HBSE Class 12 Question Paper 2019 Computer Science

CLASS : 12th (Sr. Secondary) Code No. 4307
Series : SS-M/2019
Roll No. SET : A
dEI;wVj foKku
COMPUTER SCIENCE
[ Hindi and English Medium ]
ACADEMIC/OPEN
(Only for Fresh/Re-appear Candidates)

Time allowed : 3 hours ] [ Maximum Marks : 40

• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 8 rFkk
iz'u 16 gSaA
Please make sure that the printed pages in this
question paper are 8 in number and it contains 16
questions.

• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.

4307/(Set : A) P. T. O.

(2) 4307/(Set : A)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.

• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don’t leave blank page / pages in your answer-book.

• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given. Write
to the point and do not strike the written answer.

• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.

• d`i;k iz'uksa dk mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.

(3) 4307/(Set : A)
uksV % (i) iz'u Øekad 1 ls 5 esa ls dksbZ pkj iz'u djsaA 'ks"k LkHkh

iz'u vfuok;Z gSaA
Attempt any four questions from Question

Numbers 1 to 5. Rest are compulsory.

(ii) izR;sd iz'u ds vad mlds lkeus fn, x, gSaA
Marks are indicated against each question.

1. 3rd ukeZy QkeZ dk o.kZu djsaA 4

Explain 3rd normal form.

2. ohfM;ks dkWUÝsaflax ds dkWu~lsIV dk o.kZu djsaA 4

Explain the concept of video conferencing.

3. fuEufyf[kr SQL QaD'ku dk o.kZu djsa % 4

AVG, COUNT, MAX, MIN.

Explain the following SQL functions :

AVG, COUNT, MAX, MIN.

4307/(Set : A) P. T. O.

(4) 4307/(Set : A)
4. Dykl D;k gS \ bls dSls ?kksf"kr fd;k tkrk gS \ mnkgj.k
nhft, A 4

What is a class ? How it is declared ? Give
example.

5. ,d Vhe ds cSV~leSuksa dks n'kkZus ds fy, Dykl ?kksf"kr djsaA fuEu
esEcj dks 'kkfey djsa % 4

MkVk esEclZ : First name, Last name, Runs made.
esEcj QaD'ku %
(i) izkFkfed oSY;w nsuk]
(ii) cuk;s x, ju viMsV djuk]
(iii) cSV~leSu dh lwpuk n'kkZukA
Define a class to represent batsmen in a team.
Include following member :

Data Members : First name, Last name, Runs
made.

Member functions :

(i) To assign initial values,

(ii) To update runs made,

(iii) To display batsman information.

(5) 4307/(Set : A)
6. POP dk ,YxksfjFk~e nhft,A 2

Give algorithm of POP.

7. MkVk LVªDpj ij dkSu-ls vkWijs'ku fd, tk ldrs gSa \ 2

What operations can be performed on data
structure ?

8. QhYM vkSj fjdkMZ dh ifjHkk"kk nhft,A 2

Define field and record.

9. SDLC esa losZ dh t:jr D;k gS \ 2

What is the need of survey in SDLC ?

10. rF; fjdkMZ djus ds fofHkUu rjhds D;k gSa \ 2

What are various ways of recording facts ?

11. HTML ist dk LVªDpj nhft,A 2

Give structure of HTML page.

12. HTML D;k gS \ 1

What is HTML ?

13. ekWjDoh D;k gS \ 1

What is a Marquee ?

4307/(Set : A) P. T. O.

(6) 4307/(Set : A)
14. baVªkusV dh ifjHkk"kk nhft,A 1

Define Intranet.

15. Ldksi jstksY;w'ku vkWijsVj dk mi;ksx D;k gS \ 1

What is the use of scope resolution operator ?

[ oLrqfu"B iz'u ]

[ Objective Type Questions ]

16. (i) HTTP dk iw.kZ :i ……………. gSA 1

Full form of HTTP is ……………. .

(ii) FTP dk iw.kZ :i ……………. gSA 1

Full form of FTP is ……………. .

(iii) izksVsfDVM esEcj Dykl ds ……………. gksrs gSa ij izkbosV
esEcj ughaA 1

Protected members of a class are …………….
but private members are not.

(iv) D;w esa] bUl'kZu ……………. var ij gksrk gSA 1

In a queue, insertion takes place at
……………. end.

(7) 4307/(Set : A)
(v) ,d fjys'ku 2NF esa gksxk] vxj mldk izR;sd ukWu-^dh*
,VªhC;wV izkbejh ^dh* ij ………….. vkfJr gksxkA 1

A relation is in 2NF if every non-key
attribute is ……………. dependent on
primary key.

(vi) ,d fjys'ku esa uEcj vkWQ ,VªhC;wV ……………. dgykrs
gSaA 1

(a) Viy (b) dkfMZusfyVh
(c) fMxzh (d) jks
The number of attributes in a relation is called
……………. .

(a) Tuple (b) Cardinality

(c) Degree (d) Row

(vii) …………. os usVodZ gSa tks fd ,d 'kgj esa QSys gksaA 1

(a) LAN (b) MAN

(c) WAN (d) dksbZ ugha

……………. are network spread over a city.

(a) LAN (b) MAN

(c) WAN (d) None

4307/(Set : A) P. T. O.

(8) 4307/(Set : A)
(viii) lHkh HTML VSx ……………. esa can gksrs gSaA 1

(a) ## (b) <>

(c) !! (d) dksbZ ugha

All HTML tags are enclosed in ……………. .

(a) ## (b) <>

(c) !! (d) None

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