Uttarakhand Board Class 12 Question Paper 2026 For Computer Science

FOR UTTARAKHAND CLASS 12 PREPARATION

Uttarakhand Board
Class 12 Question
Paper 2026 For
Computer Science
EXAM YEAR TYPE SUBJECT

Uttarakhand Class 12 2026 Question Paper Computer Science

Notes · Sample Papers · Previous Year Papers · Mock Tests

m
m .co

m .co s em
se On +. g la !faalNdt dWI :
Roll No. a 7

No. of printed pages : 7

144 444 (IRY)
2026
®WTRgR m
m COMPUTER SCIENCE .co
.co s e m
ma : 3 wt ]em a
[ quIa :l70
l as
Time : 3 Hours ] ag: 70
[ Max. Marks
g
fUn : a (i) Snw+qy+gm26wqgl wbwg aRad gI
Directions : There are in all 26 questions in this question paper. All questions are
compulsory.
(ii) wftgqMta3+©nbwq©3tfnagl
Marks alloted to the questions are mentioned against them.
(iii) gaa WH dUFFiM qf@ NIT nSf,Id 3HT af JPI
m
Read each question carefully and answer to the point.
.co
(iv) wqHqmladaa8rtqwqgl $WWqbqa6wgb3ur+8Ffi©mfi&IT&gI
em wg+M2+7a6Flflua3v8©wqgl
wBfa6mwnt38r®ar+fafinl
s
l a
Question No.1 is multiple choice question. Four options are given
ag
in answer of each part of this question. Write correct option in your
answer book. Question No. 2 to 7 are definite answer type questions.
(v) wg+wrl©rgaawgv©d©©lgl wg+wr2:+7a©e©3+©bqVgel
wg+wr8+14a©a3+©#wqgl wg+w115+20a©ah3+©#wqgl
wg+wr21+26a©vF3+abwqgl
Each part of Question No.1 carries one mark. Question No.2 to 7 are of
one mark each. Question No. 8 to 14 are of two marks each. Question
m
m No. 15 to 20 are of three marks each. Question No. 21 to 26 are of four
.co
m .co marks each
s e m
s e la
(vi) $WWq-q3+nWqld{fiamq6tgNITfB©faIaqWR+31tMfiaaqalq
g
g la a
faqTTrqtgl b6sITI+baaE©fi©m©r8t3HrafalII
a There is no overall choice in this question paper, however, an internal
choice has been provided in few questions. Attempt only one of the
given choices in such questions.
[1] [P.T.0.

m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 1 of 7

1. (a) qT5gm+lMfgahm3iRiu#ivrg?
Which is the floor division operator in python?
(i) ! (ii) // (iii) / (iV) CYo
(a) fErn ++#rvl6wn qTSW nr fin-A Mm g?
Which of the following is a built-in function in Python?
(i) factorial o (ii) print o
(iii) seed o (iv) sum o
(Tr) PFi++qTsuq;MthT©rv©dr taCT$qq6tt?
Which of the following is not a core data type of Python programming?
(i) Tuple (ii) List
(iii) Class (iv) Dict
(a) qt8fa+TT+qT$wgmhn©lnncscmrMTT?
What will be the output of the following python expression?
print (round (4.576))
(i) 4 (ii) 4.6 (iii) 5 (iv) 4.5
(s) f©gtfBfMT vr &m & nw ga ©RJMvm fIl%qb fat! faw we ©r3wM fWT
all(II g? 1

What is the term used for the data communication system within a building
or campus?
(i) MAN (ii) LAN (iii) PAN (iv) WAN
(3) f:rlqfafjga++#rvrDBMS©r3a®w%t+?
Which of the following is not an example of DBMS?
(i) MySQL (ii) MS Access (iii) MariaDB (iV) Google
(8) gabaR+anaTda@r©6ig?
What is information about data called?
(i) Hyper Data (ii) Tera Data
(iii) Meta Data (iV) Relations
(a) SQL+fIR?RmT++fatlfawnThHIMhTf©gTaTHre? 1

Which command is used to remove a relation from SQL?
(i) Delete (ii) Remove (iii) Drop table (iV) Purge
444 (IRY) [2]

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 2 of 7

m
m .co

F
m .co s e m
se 2. qT6Uq samI%T®©r meVFI mr aaT g? g l a
a
What is the extension of the python program file?
3. 3WqT5aq +% arvn ©arBfatlalwabT faw b3iTfing IlfaqCatsib fm f©narar
gI 1

Name the python method which is used to add element in a list at the end.
4. f©gt $@nb nwqflMiaf©dTT&8ftt!©au#ma6Tatar g? 1

m
.co
What is variable defined inside a function called?
m
I
5.
co
f©gtt@cnT5a+f+MaTTq%+bfaef©©6wnar 3dhTfWZam g?
. is used to read single line from a text file?
1

s e m
e
Which functionm l a
6.
l as
f©titfRdVFrat=ifmdt 3IId8ta®r©Eraral g? ag
g
a are rows and columns of a relation called?
What
7. DBMS b ++ + TCL nr sq aq mr g?
What is the full form of TCL in terms of DBMS?
8. fqqag©r =ncl6sr6afm- 2

Find the output of the following code:
def fun(s) :
m
k=len(s)
m .co
s e
l a
ag
For i in range (o, k):
if s[i].isuppero :

m=m+s[i] .lowero
elif s[i].isalphao :

m=m+s[i].uppero
else :
m=m+'bb'
m
m print (m)
c. o fun ('school m.co
m s e
e la
2@com')

las ftjTmTSW mg? aBb+ wMI e? ag 2

ag What is string slice? How is it useful?
2
10. EaMVH wre?3Kr6wrsfga©q8©l
What is an exception? Explain with an example.
444 (IRY) 13] [P.T.0.

I .co
m
e m .
em l as
las ag
ag For more Question Papers, Sample Papers, Notes & Syllabus visit Page 3 of 7

11. fqqdg+%feda%UT+3jq%tatgataTUfafin- 2

Identify the errors in the following code and rewrite the correct code:
10 = step
for e in the range (0, step):
if e cyo2==0
print e+ 1
else
print e-1
2
12. f:rl;ifafjga©rWTnqfafin
Expand the following terms:
(i) TCP/IP (ii) VPN
13. DBMs©r:rHm©abang&fafjgtII 2

State two advantages of using DBMS.
14, 3ngz:3l13f©raqtgbatu3rntfafjglII 2

Differentiate between update and alter command.
15. En ft(adaMa aq+ 3+? sgt dna '#'firlaa+aaa+bfWU©qTW MT
GIfhuI 3

Write a python program to accept a string and replace all spaces by '#' symbol.
16. ea lbwn alMa agb aTT{ +WI hmsqd+ arq a+ adtab fw qTSWamI
GIf:gUI 3

Write a python program to check that a given number is prime or not using a
function
17. w csv qTsa 'Train.csv' $ Mr fat! TT& fM a fisa m+ b fat! w atIm fafjglII
fatTHTqHHf:THe : 3
(trIO, tname, source, desti, km).
Write a program to display the records stored in a CSV file 'Train.CSV' having the
following structure :
(trIO, tname, source, desti, km).
mar/OR
w an a TT{ sits@ 31T{gt + 'product.csv' qTsm + sjgn qM &fat! w ;ilm fafjglII
MH©rq@RRqg:
(Pid, pname, price)
Write a program to search a product from 'product.csv' file by the product Id
given by the user. The structure of which is as follows :
(Pid, pname, price)
444 (IRY) 14]

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 4 of 7

m
m .co

m .co s em
se g la
a
18. f:rqda©©r agm %rlf+xaaf+ufabqda8wlaqafgaalwt©qafaE-

Evaluate the following expression in tabular form showing stack status after
3

every step :
120, 45, 20, +, 25, 15, –, +, *
mTr/OR
fnrfafjga$R6@rda© a BIb nq©© dvcif%m da© + mfa!-
Convert the following infix expression to its equivalent postfix expression :
m
(A– B)*(C/D) + E m .co
.coaBu-
I
RH a qRvIRa lx3=3 em
19.

em l as
s
Define the following-
ag
}

g la
(i) aNIMal
a Topology
(ii) aM#
Telnet
(iii) q,3TR Em

i
URL
20. aaa&t&mld8 g? agMfaq&# 8#$fin g? 3

o m
What are table constraints? How it is different from a column constraints?
c
.Mm fafigt! a @ nr qm @ 3ix RTd. g+
21.qTSW + add Book_name) 3#{ deleteo
( m
e qT+1
ea & pusho 3+t popo 311l+vm a s
aa%
l functions in Python to add Book Name and 4

a
Write add (Book_name) and gdeleteo
remove Book Name considering them to acts as pusho and popo operations in
stack.
mar/OR
en fate: + atOl+ al f:mfafjga fR8fg (Cust Name, Phone No, City) d+ ? I 'Status'
qmbta© wf&&TT&3jqMa©r+#faef:Mafjga=bWmfafjgU-
(i) Push_custo -]a©+fBdt$R6+qT8afmbqTq3iltbTW)aTm3ifM++b
m
m (ii) Pop_custo - 3ia® ada+
Blu I
.co
m .co e m
SeT+ 3jq 3+ fIFa BOb
fmI
s
e A list contains following records of customers (Cust Name,aPhone No, City). Write
las gl
following functions to perform given operation on thea stack named 'Status':
ag (i) Push_custo - To add object containing the name and phone no of customer
who live in Delhi to the stack.
(ii) Pop_custo - To delete the object from the stack and displaY them.
444 (IRY) 15] [P.T.0.

m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 5 of 7

22. (i) 3ar6vTHfiafaH3tTfg@ROa#qfRlufBaatfatII 2

Define List and dictionary with example.
(ii) $#frZwa3m mr WM+ a? 2

What do you understand by inheritance?
23. va aTsqa qTsm 'product.dat' + fast fi9q nra b ft8tg d wfM a+ b fat! qTsgm + w
Mm Search (pc) fafjgl! fm+ agm as ea nnjh h w + =rTfla fan TIm gI Rdg ©r
WI? f:rn qm g:
(Product Code, Product Price). 4
Write a function Search (PC) in Python to display the record of a particular
product from a binary file 'product.dat' whose code is passed as an argument. I

The structure of record is as follows:
(Product Code, Product Price)
agm/ OR
qT$21q + w Mm fafjgt! at 'story.txt' gIg at amc msa + 3g aT5qt a +wr fir+ a "A"
NW 6 TH dalaI
Write a function in Python to count the number of lines in a text file 'story.txt'

I
which is starting with an alphabet ’'A".
24. nuRlfjgd :naM a q6dm afal!- lx4=4
Identify the following devices-
(i) ©Uja+BIg&H++aa#©+wna©Tmgl
A hardware in a computer that enables network connections.
(ii) V©qt©lfgaTwaaqfEra+b3rmHw3rT+aTd3traT+aT8{f%aaf:wFit3l?
#8Omawr it
A security device that monitors and control incoming and outgoing traffic
based on defined rules,
i
(iii) E©R3T$uaawMRaT$waTrqg+cg8+©+®aT+bRE3qMrd,IiI
A device which is used to connect wireless devices to a wired network
(iv)q63Wbf93Tgm+fgfaZnf+TT=md3m#ISPbfaee7mVfwq,r+6aaaT}3it
6uar3nrqt©talgl
It converts digital signals from your device to analog signals for your isp
and vice varsa.
25. (i) DDL3+IDML ©qtg+ata3rn!©arBl 2
Differentiate between DDL and DML commands
(ii) =rqf©dtftawrafgqt 3#!©Tflqfaa+@lrrqgad?
l
2

J
What do you understand by degree and cardinality of a relation?
444 (IRY) [6]

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 6 of 7

m
m .co
a

m .co s em
se
b
26. e®ftRnta€t hum+3rwr-3mr g la M#q©r Ia SQL $
a
tMglgeM®Pjq®3wr
+2n©rnT®argl ni+gt+fidTT&gzMwH©rwdbTw+©rbsmTf©a
A gift gallery has different stores in India. Database administrator Abhay wants
to maintain salesman data in SQL. He has decided to use the following database
structure-
Database Name - Gallery
Table Name - Salesman
m
Attributes - Scode, SName, Address, Sales, Area
co
m
+nt+iexa+fadTT#ft#fg#3rruH wf:Mafjgaqwjtb3u{atfal!: m .co
. s e
em following records in Salesman table and answer the following
Consider the
s g l a
la
questions:
g a
a Table Salesman
Scode SName Address Sales Area
100 Amit Delhi 15000 East
101 Sushant Gu rug ram 7000 East
102 Priya Noida 12000 West
103 Mohit Delhi
o m9500 North
104 Priyanshi Delhi . c 13000 North
e m
(i) l as
3s+?a#r©rft©ig faw+&faE#}fafjgvfa©a} :am 10,000+3rftIa d1
g
1

Write a query to displayathe records of those salesman whose sale is above
10,000.
(ii) iFTa+ni&UZR©q+ftMafiW+bfallC©M€tfafiWI 1

Write a query to display records in descending order of their sales.
(iii) 34 ac,add HT fRHig fiaT+ b fat! ad fafjgl! at east gr west Efta + dI 1

Write a query to display the records of salesman who belongs to east or
m
.co
west area.
m
c. o (iV) f:rqaBd©r3rnegc@rBhTT- s e m
e m What will be the output of following query:
l a
las g
a by Address;
Select Address, Sum (Sales) from salesman Group
ag #####

444 (IRY) [7]

m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 7 of 7