Uttarakhand Board Class 12 Question Paper 2024 for Computer Science

UTTRAKHAND BOARD

Question Paper

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Roll No.
No. of printed pages : I

L44 4,44 (rAZ)

2024
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CoMPUTER SCIENCE {THEORY}
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Time :3 Hours I IMax. Marks : 70
ff&r, (i) {fl qwr-w{ iigm 20 qFI d'r sfr qra'3rFffird di
Directions: There are in all 26 questions in this question paper. All questions
are compulsory.
(ii) q'r+ AE fr€fkd 3i6 r+b qqs sifr-o dt
Marks allotted to the questions are mentioned against them.
( ilt) rd-6 re-{ d €qFq-ed qBd ozn HEfu m< ffiut
Read each question carefully and answer to the point'
(iv) ss{ scuT r egftrcffi'q qq{ *l Ss qfr b q-C-d sus b snq C ux fr-"o-iq'
ftd iTu dl s& ko-iq s{qfr rd{gk-6T d frfuul wq 14wT z z nzn *
frkffi :.r$q !p-q dt
Question No. 1 is multiple choice question. Four options are giT en
in answer of each part of this question. Write correct option in your
answer book. Question No. 2 to 7 are definite ansrrven type
questions.
(v) ffi tl t
seqr 1 6-t n$d sus E6 s{-6 6-l qT{ dEqr z z cI6 Es 3i6 &
qT{ dt q{{ seqr a t + To a} 316 b ssq'dl qqq srsT 15 20 f,6 (t{
t t
t
3i6 b lsq fll qsr ri@T 21 26 ffiF dK eio b Eqq dl
Each part of Question No. 1 carries one mark. Questi6n Ne. 2 to 7
are of one rnark each. Qt"lestion No. B to 14 are of two marks
each. Question No. 15 to 20 are of three marks each" Questicn
No. 21 to 26 are of four marks each.
(vi) Ffl sfi-w{ S wu T{ 6t$ BfiN q& * deufr 6frqq eq{ifr 3Tif,kd kd-iq
tl
ram fu-qT rrqr t-S ffi fr -&-{n E-6 fr-f,s ffiI6} Tn{ Arfrsl
There is no overall choice in this question pape[ however, an internal
choice has been provided in few questions, Attennpt only one af
the given choices in such questions,

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(6) c++, drrrs b frs ftEi d * fuH 6T qq)r fuqr onr
1
*l 1
which of the foilowing is used for Comrnents in c++?
(i) /xComments x/ (ii) //Comments x/
(iii) //Comrnent (iv) both //Comment or /xCommentx/
lqqy frrq ii * c++ HqT fr mtq qT 6-qEEr 6T q.Ft< T& t _
(i) BETmmEffi{
1

(ii) U<-n+xrEesqffir
(iii) erfi dxil€r (iv) frx mrildel
which of the following is not a type of constructor in c++
-
(i) Default constructor (ii) parameterized constructor
(iii) copy constructor- (iv) Friend Constructor
(rr') frrr fr * fu,fl 6r s-'crT c++ c rb-driE utqurT o1llqlfu
b ftra fu-qr arm dl 1

Which of the following is used to terminate the function
declaration in C++?
(i) (ii) l (iii) ) (iv) :
(q') # C t fu-fr ffiil 6) Fdri b frs fuH fuqT 6T rrqtrr
orfr dl
(i) WT (ii) mq (iii) b (iv) Bfrd
which operation is used to delete an item from a stack?
(i) PUSH (ii) pop (iii) ADD (iv) DELETE
(s) sel fr DML 6l ffiriT qrq.d-
(i) erur Gfu-tqm d+n (ii) s6 g.|6s drd-n
1

(iii) sia *@a drls (iv) -eTil.m-63{q drnfl
The Fuli form of DML in SeL is _
(i) Data Definition Languages (ii) Data Manager Languages
(iii) Data Manipulation Languages (iv) Data Markup Languages
(a) qfrq"{ ffird of nrup Grrqr erqr<ur ffid 6} fu-fl ftqr h gE d? 1

AND operation In boolean algebra is equivalent to which
operation in normal
algebra?
(i) q}rT (ii) qr{ (ilr) Tdrd (iv) WrT
Addition Division difference Multiplication
(6) fr-q d * sem ffi 6-r qpi wrr prT?
1

Which was the name of the first network?
(i) ASAPNET (ii) ARPANET (iii) cNNEr (iv) NSFNET
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(st $rc{id q{ ffi resource 61 d}ym Frq C + fuHb gKI (T6rmTr) qrw +e d-
The location of a resource on the interent is given by its- 1

(i) ffif, (ii) f-t-oq-m (iii) dsrr uf, (iv) s-.q.sq,sq.
Protocol E-mail address URL WWW
2 frq frd rrs drfiT-{ o;1tfl (header) sr{m ffi'qlrr frfrs-A- 1

Write the name of the header file for the following function-
(i) putso (ii) setw()
3 N frrdi s.6r< & e)-i di 1

How many types of array are there?
4 c++ tisqlT d-r ed m-*1 a) q-6T{ & }dr re-ffi{ (Data structure) frfu-dt 1

Write any two type of Data Structure used in C++"
5 *
3a{ fi pq s<T fr ffiwr H
o-rt dl 1

What is relation in RDBMS?
6 ffidrffiawbffiqmssrdde 1

Holv many values any logical variable can harre?
7 LAN] cpJT MAN c a\ erq< frfo"I 1

Write two difference between LAN and MAN?
B fu q)]]tq o,ts 6T output. qffi-fd - 2
Find the output of the ioliowing code-
#include < iostream.h>
int main 0
{
lnt i;
for (i=1; i<=10; ++i)
cout <4"\,,["<<i;
return 0;
\)
s. eeffirfi ffi b dliTq a+ slk w+ qls o1 u-o erffiffiI wf u-o 3i(K ffiq-dr Z

Write one similarity and one difference between a+ and w+ mode in data file
handling.
10, c++ $rTsrT fr urfqq dfl & fu uomprq frfisdt (s6:A m"q b N b frul z
Write an algorithm for Binary Search in C++ language. (For Ascending order in
Array)

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ll.Fmaigqorfgr<.Eldc*6RIfrbq-s6q{Tr61qte]"r#kdlTl-
5,6,2,*,*,L2,4, l,-
Evaluate the expression 5' 6' 2' *'
*' 12' 4' /' - in tabular form showing stack
status after everY steo'
L2 fr# *ai" f*. b mtm
qRwfra fifrd-
q-<
2

;'; *;tsur (ii) ffiiagd
the following in Database concept-
Define
(i) PrimarY KeY (ii) Candidate KeY
Z
13 }i+F"*;5e. b uo-uo srqt E 36-srlfrRrit fibers'
*r,i" io*n one advantage and one disadvantage of optical 2
14. wLL w qs-q As ftRg-dt
Write a short note on WLL' 3
1s. ligq fr'flq mT 3{Bqt gra dHm -
Find the output of the following program -
# i nclurde< iostrea m' h >
void rnain 0
{
int x[ ]={10,25,30,55,i10};
intxP-x;
while (xP< 110)
{
*p= *p+ L;
else
*p_xp*2i
p+-;
)
for (int T=4; l>1; I--)
Jt
cout<<x[I]<<"*";
If (Iolo3==0)
cout< <endl;
'l
I
cout<<x[0]x3<<endl;
) qfff Hqflr$ul 3
16. fr.d rirffiq {H 6-dt dl sqrf<.'r
WhatisfriendFunction?Explainwithexample'
3lerqr/oR
E6 c++ HqT d fr'rq frftqs, *
TS,,*" fr d ffqffi o\ dls-m dt
same size'
Wrlte a program in C++ to add two matrix of

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L7 . frq qirs b smm qq w$i (i) t (iii) ao b r.r< ftifus-
Answer the Question (i) to (iii) based on the following code-
3

class Regular
t
char School-Code [10];
puhlic :
rroid In-Regular ( );
void Out-Regular ( );
1.
Jt
class Distance
{
char StudY-Centre-Code [5];
public :
void In-Distance ( );
void Out-Distance ( );
1.
fr
class Course: Public Regular; Private Distance
{
char Code [5];
f loat Fees;
int Duration;
public :

void In-Course ( );
void Out--Course ( );
);
(il strffi ols tifux, s-oi< oi g*Rls mr fu*q f 1

!Vhich type of inheritance is shown in above code'
(ii) ; l+*^"*, b qru ftfisA $ mrs course b out-.ourse C qffidrq dl
"-ftname of all the member functions accessble
Write fronn Out-course function
of C!ass Course.
(iii) ; dfr-tr& ;il 3Trci.fl b aRT ffiIrfl course fi sasr dr sot dt
"fr"t*.-b
Wrlte ",
name of all members accessible through an object of Class Course.
18. K-Map 6T !-CIT o<t 6u e-<#o<ut otffiqr - 3

Simplify using the K-MaP-
F(R Q, R, S) = I (0, 3, 5, 6, 7, LL, L2, 75)
lg, fi-*dq rhq qilt i ffi uen Frqq 61 rs-dt sernl Hr<fi fr srrqar fr snlfrd otffim t

3

State De-Morgon's TheoremlLaw. Verify any one of the De-Morgon's Law using
a Truth rable'
',3[era17gp

qEf, fr+ or Frqq corEr fu'fr r'o Frqq 61 strfr sdHT Hnffi d vdrqil t ssrfr"a
frffirnt
State Absorption Law. Verify any one of the Absorption law using a truth tabie.
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za. frH61qfu{rR-d6ths- 1x3=3
Define the following -
(i) Hr{qr 6rd=T (ii) tax (iii) g*1
Cyber law Hacker Cookies
21. C++ rlrtil b urrnopolis ffirKr mr fuq Bq1ur * snenq q{ 6ts frfuu - 4
Write the definition of a Class METROPOLIS in C++ with the following description:.
Private Members
M-Code // Data member for code (an integer)
M_Name // Date mambers for name (a string)
M_Fop // Data members for population (long int)
Area // Data members for Area Coverage (a float)
Popdens // Data members for population density (a float)
CaldenO // A member function to calculate
/1 Density as PopDens/Area
Pubiic Members :
Entero // Afunction to ailow user to enter varue of
// M_Code, M,_Name, M_pop, Area and CaldenO function
ViewAllO // A fulnction to display data memeber
// A.lso display a message ',!-ligh populated Area,'
// If the density is more than i2,000.
zz. mq,ffi{ 3flq CRnffiq aDT qq}T m<& 6u ffi mrs b fr! qtflq 6ts frfuuI 4
Write a program Code for a class using constructor and destructor.
23. c++ qqJ r) w ritdqm frfuu ril FrqftTfotr ffirrs student b 3rc-fr) 61ffi
qrETfr
tFr{f, d ftrgdT dr- 4
Write a function in C++ which is used to write the objects of following class
student in a hinary file-
class student
{
int regno;
char name[20];
public:
void getdatao
i
cout "enter registnation No.";
cin>>regno;
cout"enter l.lame";
cin> >name;
)
void putdataO'
)
, cout<<regno;
cout< < name;
); )
3re[q[/oR.
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c+ + iiltrT fr uo riffirq ftfuu a\ uo dffi srid old.txt 6) $rfi dffi wr{f, new.txt
frffimtl
Wr-ite a function in C++ which copy the content of one text file old.txt into
another text file new.txt.
24. A14..7, -1..31 gtq fit{rfrH Eo 2-D tt mr q-dd ffir 2 qrfc ds trsar dt qfr t't C
.1fu rgs mq C €Ii fuqT fldI d C n po, 2l dl rl?tT Et?i dm, ts qf,r 100 frqi dl
.4
A 2-D array defined as A [4,.7, -7..3] requires 2 bytes of storage space for
each element. If the array is stored in row-major form, calculate the address of
A [6, 2], given the base address as 100.
zs. ffiaqCffiEo1ffidPdre-ddbft?urffiemfrftsut 4

Write an algorithm to add and delete an element from a queue.
3[?]alloR
e-pa r{ffi C uo ffqrq frRss S Frq. H{flrT Ere #i fr w frffi ftil€ slrdT A 3ik stTb
gfeT 6-T AET,,-d] 6 -
Write a program in C++ which is used to create a linked list for the following
structure of nodes and also displatT the same -
Struct node
i
int data;
node x next;
);
zG. stock table b satf fr frir b s-.x erfus-
Consider the following table Stock and Answer the following-
Table : Stock
Item No Item Dcode Qtv Unit Price Stock Date
5005 Bail Pen 0.5 t02 100 16 31-Mar-10
5003 Ball Pen, 0.25 L02 150 20 01-Jan-10
500 2 Gel Pen Pre 101 t25 L4 14-Feb- 10
s006 Gel Pen Classic 10.1 200 22 01-Jan-09
5001 Eraser Small L02 2L0 5 19-Mar-09
5004 Eraser Big t02 60 10 1 2- Dec-09
5 009 Sharpener Classic 103 L40 8 23-lan-09

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(m) sQL 3fl'evr frfu - 1 xz=Z

Write SQL Commands -
(i) Stock tsd d item 61{ifr ftrd$rr 6} r{b etv b q.6a m-q fr aertrTr
To display details of all items in stock table in ascending order of Qty.
(ii) stock &m q item b &aa rq frd.Tl 6\ oqrfqr ffi unit price 10 qT llr$
3rftr6 dr
To ciisplay the details of those items whose unit price is 10 cr more
than 10.
trql Frq 3lT&Tt 6[ output dtT[ 6t[r LxZ=2
What will be the output of following commands -
(i) Select Count (Distinct Dcode) from Stock;
(ii) Select min(stock Date) from stock;
*****

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