Rajasthan Computer Teacher 2026: Senior Computer Instructor, Paper II (code DU15)
Text of page 1
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Number of Pages in Booklet :
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Number of Questions in Booklet :
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Instructions
1.
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Before attempting the question paper, kindly check your Question Booklet(QB) and O.M.R. Answer Sheet and ensu
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- Serial number of Question Booklet(QB) and OMR Answer Sheet is same.
- All pages and all questions are properly printed
In case of any discrepancy/defect, the candidate should immediately report the matter to the Invigilator for
Booklet(QB) and OMR Answer Sheet. No claim/objection in this regard will be entertained after five minutes of
candidate will be liable for the same.
P
2. Read all instructions on the reverse of OMR Answer Sheet.
3. On OMR Answer Sheet, use blue ball point pen only. Please, fill your Roll No. and other information correctly
4. If more than one response is marked for a question, it would be treated as wrong answer.
5. 1/3 part of the mark(s) of each question will be deducted for each wrong answer. (A wrong answer means an inc
than one answers for any question).
6. Each question has five options/circles. First four(A), (B),
options/circles
(C)
and(D) are related to appropriate answer and fift
option/circle
(E) is related to Question not attempted.
7. To indicate the correct answer, the candidate has to fill in only (A),one
(B), (C)
option/circle
or(D) with blue ball point pen for
E
respective question number on the OMR Answer Sheet. If the candidate does not want to answer any question the
circle(E) should be darkened.
8. 1/3 part of the marks will be deducted for the questions, if none of the option/circle are darkened.
9. If a candidate leaves more than 10 percent questions or does not darken any of the five options, he/she will
IC
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English Version will be treated as final.
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prohibited material is found with any candidate, strict action will be taken against him/her as per rules.
Warning : If a candidate is found copying or using unfair means or if any unauthorized material is found in his/he
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Preventions of Unfair Means in Recruitment) Act. 2022 and Amendment Act 2023. The act has provisions of imprisonm
10 years to life and ` fine
10up to
crore. Board may also debar him/her permanently from all future examinations conducted
Do n
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DU15_CS2 ] ? 1 [ Contd...
Text of page 2
1
(A) -
?
-
(Inorder) -
(Unique)
1 Which of the following traversal
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construct a general binary tree?
(Preorder)(A) Inorder and Preorder
(B)
(C)
- (Inorder)
(Postorder)
-
order)
(Inorder) -
-
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(B) Inorder and Postorder
(C) Inorder and Level-order
(Level- (D) Postorder and Level-order
(E) Question not attempted
(D) - (Postorder) -
(Level-order)
2
(E)
CE
2 Consider the following functions:
f
f
1(n)
2(n)
= n!
=n 2
f 1(n) = n! =log
f
f
2(n)
3(n)
=n 2
=log
n
f
f FI3(n)
4(n)
n
=5 n
Arrange the functions in increasing order o
f
(A) f
5
4(n) = n
OF (A) f
(B) f
4(n)
3(n)
<3 f
(n) <2 f
<4 f
(n) <1 f
(n) <2 f
(n)
(n) <1 f
(n)
4(n) <3 f
(n) <2 f
(n) <1 f
(n)
(B) f (C) f 4(n) <2 f
(n) <3 f
(n) <1 f
(n)
3(n) <4 f
(n) <2 f
(n) <1 f
(n)
(C) f
(D) f
4(n) <2 f
2(n)
(n) <3 f
<3 f
(n) <1 f
(n) <4 f
(n)
(n) <1 f
(n) Y (D) f 2(n) <3 f
(n) <4 f
(E) Question not attempted
(n) <1 f
(n)
3
(E)
CO
, x
3 For every element x in Boolean Algebra,
there exists a complement
x
(A)
(B)
(C)
x
x +x
x +x
x +x = 1
,
P :
x x
x x
x x = 0
(A)
(B)
(C)
(D)
x +x
x +x
x +x = 1 and
x + 1 = 0 x
x x
x x
x x = 0
and0 = 1
(D)
(E)
E
x + 1 = 0 x 0 = 1
(E) Question not attempted
4 n IC ?
4 A multiplexer with n select lines can sele
from a maximum of how many input lines?
OF(A) n (B)
(C) n (D) log
2
(n)
(A) n (B)
(C) n (D) log 2
(n)
F
(E) (E) Question not attempted
DU15_CS2 ] 2 [ Contd...
Text of page 3
5
Process Arrival Time Burst Time
P1 0 8
PY
5 Consider the following processes with the
length of the CPU burst given in millis
Process Arrival Time Burst Time
P1 0 8
P2 1 4 P2 1 4
P3
P4
2
3
9
5
P3
P4
CO
2
3
9
5
The CPU scheduling algorithm used is
Preemptive Shortest Remaining Time Firs
? What is the average turnaround time in
(A) 13 (B) 13.5
(C) 14 (D) 7.75
(E) CE
milliseconds?
(A) 13 (B) 13.5
(C) 14 (D) 7.75
(E) Question not attempted
6 -
(A)
?
(Process)
FI
6 Which one of the following conditions is
that a system is in a safe state?
(B)
(C)
(Resource)
(Process)
(Processes) - -
OF (A) No process is currently waiting for a
resource.
(B) Every process can immediately obtain
its maximum resource requirement.
, (Process) (C) There exists a process order in which
Y
(Remaining Resources) every process can obtain its remain
resources and complete execution.
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(D) , (D) The number of available resources
(Process) exceeds the maximum resource
(Maximum Resource requirement of every process in the
Requirement) system.
(E)
7 C-SCAN
?
P (E) Question not attempted
7 How does the C-SCAN disk scheduling
algorithm process requests?
(A)
E (A) It scans in one direction and restarts
from the beginning.
(C)
IC
(B) (B) It scans in both directions to process
all requests.
(C) It selects the nearest request during
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each movement.
(D) (D) It processes requests according to thei
arrival order.
(E)
F
(E) Question not attempted
DU15_CS2 ] 3 [ Contd...
Text of page 4
8
(A)
?
, (Spiral)
PY
8 In the Spiral Model, each complete travers
around the spiral primarily represents:
(A) A single testing phase
(B)
(C) -
( )
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of the software product
(C) A database transaction
(D) A maintenance activity only
(D) (Maintenance) (E) Question not attempted
9
(E)
-
(DFD)
?
9
CE
Which of the following statements regar
a correctly constructed Data Flow Diagr
(DFD) is incorrect?
(A)
,
,
FI store to another without passing
through a process.
(B)
(C) (External Entity)
OF (B) A process can transfer data to a data
store.
(C) An external entity can exchange data
-
directly with a process.
(D)
- Y (D) One process can exchange data directly
with another process.
(E)
10
CO (E) Question not attempted
P
10 Which of the following best describes
?
(A)
customer requirements.
(B)
E (B) Ensuring that the software correctly
(C)
IC (C) Ensuring that the software is free from
all defects.
OF
(D) (D) Ensuring that the software is delivered
on schedule.
(E) (E) Question not attempted
F
DU15_CS2 ] 4 [ Contd...
Text of page 5
11
(A)
,
?
-
(Closure)
11
by a group?
(A) Closure
PY
CO
(B) (Associativity) (B) Associativity
(C) (Identity Element) (C) Existence of Identity Element
(D) Commutativity
(D) (Commutativity) (E) Question not attempted
(E)
12 In the MillerRabin primality test, the ou
12
:
(MillerRabin)
(Inconclusive)
,
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inconclusive indicates that:
(B) The factorization of number n has
(A) n been found.
(B)
(C)
n
n
FI
(D) The chosen value of random integer a
(D)
(E)
a,
OF
n has failed to prove that number n i
composite.
(E) Question not attempted
13 RSA , (e,n) =
13 In an RSA cryptosystem, the public key (e
(3,11)
Y
(Ciphertext) C
M=4 ,
is (3,11). If the message to be encrypt
M=4, then the corresponding ciphertext
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?
(A) 6 (B) 7
(A) 6 (B) 7
(C) 8 (D) 9 (C) 8 (D) 9
(E) (E) Question not attempted
14
(Public Key)
P (Private Key)
,
14 Amit encrypts a message using his private
key, and Rahul decrypts it using Amits
public key. Which security service is
E
(Security Service) ?
- achieved? (Choose the most appropriate
option from below)
(A)
(B)
IC (B) Access Control
OF(C)
(D)
(E)
Authentication
(D) Authentication
F
(E) Question not attempted
DU15_CS2 ] 5 [ Contd...
Text of page 6
15 HTML
(A)
(B)
,
-
?
required
PY
15 In HTML, the required attribute of an inp
(A) Server-side validation
(B) Data encryption
CO
(C) (C) Session management
(D) - (D) Client-side validation
(E) Question not attempted
(E)
16 In the DOM hierarchy, the document object
16 DOM (Hierarchy) , document
is:
(A)
(B)
(C) HTML
?
CE
(A) A child of the element
(B) A sibling of the element
(C) The root object of the HTML document
(D) A leaf node
(D)
(E)
FI
(E) Question not attempted
17 DHTML
(A)
,
?
OF 17 In DHTML, event handling is commonly
implemented using:
(A) SQL Queries
(B) Java Applets
(B) (C) JavaScript Event Handlers
(C)
(D)
Y (D) XML Parsers
(E) Question not attempted
(E)
18 CSS
CO 18 Arrange the following components of the
CSS Box Model in the correct order from
(1)
(2)
(Innermost)
:
P (Outermost) innermost to outermost:
(1) Margin
(2) Content
(3) Border
(3)
(4)
E (4) Padding
Choose the most appropriate answer from
IC
(A) (2), (4), (3), (1)
(B) (1), (2), (3), (4)
the options given below:
(A) (2), (4), (3), (1)
(B) (1), (2), (3), (4)
OF(C) (2), (4), (1), (3)
(D) (4), (2), (3), (1)
(C) (2), (4), (1), (3)
(D) (4), (2), (3), (1)
F
(E) (E) Question not attempted
DU15_CS2 ] 6 [ Contd...
Text of page 7
19
(A)
(B)
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19 Identify the odd one out from the followi
(A) Perimeter
(B) Circumference
(C) Boundary
CO
(C)
(D) (D) Volume
(E) Question not attempted
(E)
20 In a management institute, 510 students
20
,
, 510
CE
enrolled in at least one of the three e
courses: Finance, Marketing, and Operat
A survey revealed the following informa
280
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280 students enrolled in Finance.
250 students enrolled in Marketing.
250
220
120
OF220 students enrolled in Operations.
120 students enrolled in both Finance
and Marketing.
90 Y 90 students enrolled in both Marketing
and Operations.
80
CO 80 students enrolled in both Finance
and Operations.
P
50 students enrolled in all three
50 , electives: Finance, Marketing, and
Operations.
Based on the above information, how many
E
?
,
students enrolled in Finance only?
(A) 130
(B) 132IC (A) 130
(B) 132
OF
(C) 140 (C) 140
(D) 142 (D) 142
(E)
F
(E) Question not attempted
DU15_CS2 ] 7 [ Contd...
Text of page 8
21 C
(A)
-
(File Handling)
?
, fopen( )
21
PY
handling in C is incorrect?
NULL
CO
be opened.
(B) a (Append)
appending data at the end.
(C) fclose( ) (Storage)
(D) fscanf( )
(Formatted) CE
from storage.
(D) fscanf( ) can be used to read formatted
(E)
22 C++ , - (Access 22
FI
(E) Question not attempted
(Members)
(Derived)
OF members to be accessed only within the
same class and its derived classes?
(Access) ?
(A) public
(A) public (B) private
(C) friend (D) protected Y (B) private
CO
(E) (C) friend
(D) protected
23 C++ , (Inheritance) (E) Question not attempted
(A)
(Constructors)
?
P (Base Class),
(Execute)
23 In C++, constructors in inheritance are
executed in which order?
(B) E
(Derived Class)
(Derived Class),
(C)
IC (Base Class)
(Random)
(C) Random order
(D) Only derived class constructor
OF
(D) (Derived Class)
executes
(E) (E) Question not attempted
F
DU15_CS2 ] 8 [ Contd...
Text of page 9
24
(A)
. .
. .
. .
.
?
. . .
PY
. 24 Which characteristic of CMOS technology
makes it the preferred choice for VLSI
circuits compared to TTL?
(A) Higher switching speed at all
CO
(B) frequencies
(C) 5V (B) Lower power dissipation
(D) - (C) Lower propagation delay at 5V
(E) (D) Higher fan-out without degradation
(E) Question not attempted
25 - 3-
(TA2,TA1,TA0 ) ?
,
1 0 0
,
0 1 1
- CE
25 In a 3-bit synchronous binary counter usi
next state is 1 0 0. What are the requi
(A) (0, 1, 1) (B) (1, 0, 0) ,TA1 ,TA0 )?
(C) (1, 1, 0) (D) (1, 1, 1)
(E)
FI A2
(A) (0, 1, 1) (B) (1, 0, 0)
(C) (1, 1, 0) (D) (1, 1, 1)
26
(A)
-
?
-
OF (E) Question not attempted
26 Which of the following statements regardi
fanout is FALSE?
(A) Fanout is the maximum number of
(B) Y gate inputs that can be driven with
CO
(B) Fanout depends on both the driving
(C) gate and the driven gates.
(C) Fanout analysis is required for both
P
(D) HIGH and LOW output states.
(D) Fanout depends only on the output
(E) voltage levels of the driving gate.
(E) Question not attempted
27 (Karnaugh Map)
E
(Minimization)
2
, 4 27 In Karnaugh Map minimization using the
Sum of Products (SOP) form, a group of
IC
(Overlapping)
(Minimized) (Expression)
cells produces AC. An overlapping group
expression is:
OF
?
(A) AC + ABC (B) AC (A) AC + ABC (B) AC
(C) AB + AC (D) A(B+C) (C) AB + AC (D) A(B+C)
F
(E) (E) Question not attempted
DU15_CS2 ] 9 [ Contd...
Text of page 10
28 -
-
(Extended E-R)
-
(Lower-level)
(Attributes)
PY
, 28 In an extended E-R model, which design
process abstracts the common attributes
relationships of two or more lower-leve
entity sets into a single higher-level
(Relationships) (Abstract)
CO
set?
- (Higher-level)
(A) Aggregation
?
(B) Specialization
(A) (B)
(C) Generalization
(C) (D)
(E) (D) Participation constraint
(E) Question not attempted
29
?
-
(Duplicate Tuples) CE
29 Which relational algebra operation remove
duplicate tuples from a relation?
(A)
(B)
(C)
(D)
(A )
()
FI
(C) Natural Join (A )
(E)
30
S
,
OF (D) Cartesian Product ()
(E) Question not attempted
(Precedence Graph) 30 Consider the following statements regardi
: the construction of a precedence graph
(1)
Ti, Tj read(Q) Y ,
(execute)
schedule S:
CO
write(Q)
write(Q) before Tj executes read(Q)
(2) ,
Ti, Tj write(Q) (execute)
read(Q) read(Q) before Tj executes write(Q)
(3)
(4)
Ti, Tj write(Q)
write(Q)
P ,
(execute)
,
write(Q) before Tj executes write(Q
read(Q) before Tj executes read(Q).
E
Ti, Tj read(Q)
read(Q)
(execute) Which of the above statements are correct?
Choose the most appropriate answer from
IC
(A) (1), (2), (4)
the options given below:
(A) (1), (2), and (4)
(B) (1), (2), and (3)
OF
(B) (1), (2), (3)
(C) (2), (3) (4) (C) (2), (3) and (4)
(D) (1), (2), (3) (4) (D) (1), (2), (3) and (4)
F
(E) (E) Question not attempted
DU15_CS2 ] 10 [ Contd...
Text of page 11
31
(A)
?
ARPANET ,
,
( . . .)
PY
31 In the original ARPANET design, each host
computer was connected to a specialized
computer known as:
(A) Interface Message Processor (IMP)
(B)
(C)
(D)
(E)
CO
(B) Gateway Processor
(C) Network Router
(D) Packet Controller
(E) Question not attempted
32
1
1
MAC
?
32
CE
A bridge receives a frame on Port 1. It
forwarding table indicates that the des
MAC address is also associated with Por
What will the bridge do?
(A) ,
(B)
FI
(A) Drop the frame because forwarding is
unnecessary.
(B) Forward the frame to all ports.
(C)
(D) MAC
2
OF(C) Forward the frame to Port 2 only.
(D) Change the destination MAC address
and forward it.
(E) (E) Question not attempted
33 CIDR ( - ) Y , 33 In CIDR (Classless Inter-Domain Routing)
CO
205.16.37.39/28 addressing, an organization is assigned
CIDR IP address block 205.16.37.39/28. How many
? IP addresses are available in this CIDR
P
(A) 8 (B) 64 block?
(C) 32 (D) 16 (A) 8 (B) 64
(E) (C) 32 (D) 16
(E) Question not attempted
34 IEEE 802.11
E (Station Mobility) 34
(A)
(B)
IC -
-
? station mobility types EXCEPT:
(A) No-transition mobility
(B) BSS-transition mobility
OF(C)
(D) -
- (C) ESS-transition mobility
(D) PAN-transition mobility
(E) Question not attempted
F
(E)
DU15_CS2 ] 11 [ Contd...
Text of page 12
35
- 127
(A) 5 Mbps (B) 6 Mbps
1
?
-
PY
35 A communication channel has a bandwidth
of 1 MHz and a signal-to-noise ratio of
The maximum achievable data rate of the
channel is:
(A) 5 Mbps (B) 6 Mbps
(C) 7 Mbps (D) 8 Mbps
(E)
36 1 100 W
CO
(C) 7 Mbps (D) 8 Mbps
(E) Question not attempted
2 36 A signal has a power of 100 W at Point 1
10 W (dB) 10 W at Point 2. What is the attenuatio
(Attenuation) ?
CE
the signal in decibels (dB)? (Choose th
most appropriate option from below)
(C) 90 dB (D) 20 dB
(C) 90 dB (D) 20 dB
(E)
FI
(E) Question not attempted
37 According to the Nyquist theorem, the
37
(A)
(B)
,
OF
: sampling rate must be:
(A) Equal to the highest frequency
contained in the signal
(B) Half of the highest frequency contained
(C) --
in the signal
(D) Y (C) At least twice the highest frequency
contained in the signal
CO
(E) (D) Four times the bandwidth of the signal
(E) Question not attempted
38 - -
P
(WDM) ? 38 Which one of the following statements
correctly describes Wavelength-Division
(A) WDM
Multiplexing (WDM)?
(A) WDM combines multiple optical
signals of different wavelengths on
(B) WDM
E (B) WDM combines multiple digital
IC
(C) WDM
signals using different time slots.
(C) WDM combines multiple signals
using different code sequences.
OF(D) WDM (Metallic)
(D) WDM is used only with metallic
transmission media.
(E) Question not attempted
F
(E)
DU15_CS2 ] 12 [ Contd...
Text of page 13
39
(A)
? 39
PY
teaching is to: (Choose the most approp
option from below)
(A) Develop rote memorization and factual
(B)
(C)
(Reproduce)
,
recall
CO
(B) Train students to reproduce information
accurately
(C) Encourage learners to critically
(D) - - CE
analyze, evaluate, and solve proble
independently
(D) Focus only on teacher-centered content
(E) delivery
40
FI
(E) Question not attempted
(Blooms Revised Taxonomy)
OF
,
40 A student uses the principles of probabil
learned in class to solve a real-world
assessment problem. According to Blooms
? Revised Taxonomy, this demonstrates:
(A)
(B)
(Remembering)
(Understanding)
Y (A) Remembering
(B) Understanding
(C)
(D) CO (Analyzing)
(Applying)
(C) Analyzing
(D) Applying
P
(E) (E) Question not attempted
41 (Formative Assessment)41 Formative assessment is mainly conducted
? to: (Choose the most appropriate option
(A)
E from below)
(A) Monitor learning progress and provide
(B)
IC (Feedback) feedback
OF(C)
(D)
(C) Compare students across schools
(D) Certify the completion of a course
F
(E) (E) Question not attempted
DU15_CS2 ] 13 [ Contd...
Text of page 14
42 8-
(signed twos complement)
- ?
(A) 11110110 (B) 10001001
PY
42 Which of the following is the 8-bit signe
twos complement representation of decim
number 9?
(A) 11110110 (B) 10001001
(C) 11110111 (D) 01111111 (C) 11110111 (D) 01111111
(E)
43 (23) 5 (14)
6
= ( __
(A) 130 (B) 202
8
)
CO
(E) Question not attempted
43 Evaluate (23)
5
(A) 130 (B) 202
(14)
6
= ( __
8
)
(C) 222 (D) 322
(C) 222 (D) 322
(E)
44 . . . . . CE
(E) Question not attempted
44 Which system is required to convert scann
text into editable ASCII characters?
? (A) MICR (B) OMR
(A)
(C)
(E)
(D)
(B)
FI
(C) OCR (D) Barcode Reader
(E) Question not attempted
45
?
OF 45 In machine language, instructions are
executed directly by the:
(A) Compiler
(A) (B) (B) Operating System
(C) (D) (C) Assembler
(E)
Y (D) CPU
(E) Question not attempted
46
(A)
(B)
( )
CO ?
46
(A) The result is always negative
P
(B) The sum requires more bits than
available
(C)
(C) The carry bit is zero
(D)
(D) Two positive numbers are added
(E)
(E) Question not attempted
47 E - 8-
47 Which one of the following 8-bit
(A)
IC
(representation)
?
(2s complement)
representations can represent the great
number of distinct negative integer val
(A) 2s complement
OF
(B) (B) Sign magnitude
(C) (1s complement) (C) 1s complement
(D) -127 (D) Excess-127
F
(E) (E) Question not attempted
DU15_CS2 ] 14 [ Contd...
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48
(A)
(B)
(Contiguous)
fast) ?
PY
48 Why is insertion faster in a linked list?
(A) Elements are stored contiguously.
(B) It uses binary search.
(C) No shifting of elements is required.
(C)
(D)
CO
(E) Question not attempted
(E)
49 Binary Search is generally not preferred
49
(A) (Elements) (Sorted)
CE
Linear Search when:
(A) The elements are stored in a sorted
array
(B) (Sort)
(Simple Search)
, FI
(B) The cost of sorting the data is higher
than performing a simple search
(C)
(D)
OF
(C) The dataset allows random access
(D) The number of elements is very large
(E) (E) Question not attempted
50 Y
(BST) n 50 Suppose a BST contains n distinct keys an
CO
(Distinct) (Keys)
is completely skewed. The worst-case ti
(Completely Skewed) BST
complexity for searching an element is:
(Element)
P
(Time Complexity) ? (A) O(1) (B) O(log n)
(A) O(1) (B) O(log n) (C) O(n) (D) O(n log n)
(C) O(n) (D) O(n log n)
(E) Question not attempted
(E)
51 E V (Vertices) E 51 A graph with V vertices and E edges is
IC
(Edges)
(Space Complexity)
,
?
represented using an adjacency list. Th
space complexity of the representation
OF
(A) O(V) (B) O(E)
(A) O(V) (B) O(E)
(C) O(VE) (D) O(V+E) (C) O(VE) (D) O(V+E)
F
(E) (E) Question not attempted
DU15_CS2 ] 15 [ Contd...
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52 -
(Active-HIGH)
X
X
E ,
E=1
-
,
-
PY
52 A three-state (tri-state) buffer has a da
input X and an active-HIGH enable input
E = 1. Which of the following statement
(A)
?
E=0 , -
correct?
CO
(A) When E=0, output enters high-
impedance state.
(B) E=0 ,
(B) When E=0, output equals input.
(C)
(D)
E=1 ,
E=0 ,
-
CE
(C) When E=1, output enters high-
impedance state.
(D) When E=0, output retains its previous
(E)
(Logic Value)
FI logic value.
(E) Question not attempted
53 . . . , . . .
OF 53 In a DMA-based system, the DMA controller
transfers a word of data by temporarily
taking control of the memory bus. This
technique is known as:
(A)
(B)
(Polling)
(Interrupt Chaining)Y (A) Polling
CO
(C) (Cycle Stealing) (B) Interrupt Chaining
(D) (Daisy Chaining) (C) Cycle Stealing
(E) (D) Daisy Chaining
54
(A)
- (Write-Through)
-
P ?
(Write)
(E) Question not attempted
54 Which of the following is the primary
E advantage of the write-through policy?
(A) Fewer memory write operations
(B)
(C)
IC (Cache) (Size)
(B) Reduced cache size requirements
(C) No need for cache replacement
OF(D) (D) Main memory always contains the
most recent data
(E) Question not attempted
F
(E)
DU15_CS2 ] 16 [ Contd...
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55
X = 10
(Cyclomatic Complexity)?
PY
55 What is the cyclomatic complexity of the
following program?
X = 10
IF Y > Z THEN IF Y > Z THEN
ELSE
X = Y
X = Z
ELSE
X = Y
X = Z
CO
ENDIF ENDIF
PRINT X
PRINT Y
PRINT Z
(A) 1 (B) 2
PRINT X
PRINT Y
PRINT Z
CE
(C) 3 (D) 4
(E)
FI
(A) 1 (B) 2
(C) 3 (D) 4
(E) Question not attempted
56 (Unit Testing)
?
OF 56
unit testing?
(A) (Boundary Conditions) (A) Boundary conditions
(B) - Y
(Error-Handling Paths)(B) Error-handling paths
CO
(C)
(D) interface
(E) (D) Independent execution paths
57 , P (E) Question not attempted
57 In requirements modeling, a model that
, E ?
describes how software reacts to extern
events is called a:
(A)
(B) IC (A) Data Model
(B) Behavioral Model
OF
(C) (C) Structural Model
(D) - (D) Flow-Oriented Model
(E) Question not attempted
F
(E)
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58
(A)
cryptosystem)
(public-key
PY
58 The public key in a public-key cryptosyst
(public key): is:
(A) Shared with everyone
CO
(B) owner) (B) Kept secret by the owner
(C) (C) Deleted after encryption
(D) (D) Used only once
(E) (E) Question not attempted
59
)
(Attacker)
(Impersonate)
(
CE
59 An attacker sends fraudulent emails that
impersonate a trusted organization (suc
,
(Malicious)
(Recipients)
FIbank), deceiving recipients into clicki
malicious link and revealing their logi
OF credentials or other sensitive informat
most appropriate option from below)
? (A) Phishing
(A)
Y
CO
(B) (C) DoS Attack
(C)
(D) (E) Question not attempted
(E)
60 .. . 16
P 60 Which one of the following operations is
performed immediately after the complet
E ? of the th16round in DES?
(A)
(B) IC
(C) 32-
( ) (A) Initial Permutation (IP)
(B) Key Compression
(C) 32-bit Swap
OF(D)
(E)
- (D) S-Box Substitution
(E) Question not attempted
F
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61
XML
?
- XPath
title
PY
61 Which of the following XPath expressions
selects all
XML document?
(A) /title
title elements anywhere i
(A) /title
(B) title
(C) //title
(D) @title
(B) title
(C) //title
(D) @title
CO
(E) Question not attempted
(E)
62
(Data Type)
- (Value)
?
CE
62 Which operator checks both value and data
(A) =
type equality in JavaScript?
(A) =
(B) = =
(C) = = =
FI
(B) = =
(C) = = =
(D) !=
(D) !=
(E)
OF (E) Question not attempted
63 What will be the output of the followin
63 ? PHP code?
<!DOCTYPE html>
<html>
Y <!DOCTYPE html>
<html>
<body>
<?php CO <body>
<?php
P
$x = 10; $x = 10;
$y = 5; $y = 5;
echo $x + $y; echo $x + $y;
?> ?>
</body>
</html>
E </body>
</html>
(A) 15
IC
(B) 105
(A) 15
(B) 105
OF
(C) 10+5 (C) 10+5
(D) 510 (D) 510
(E) (E) Question not attempted
F
DU15_CS2 ] 19 [ Contd...
Text of page 20
64
x
,
PY
64 Based on the following statements,
determine whether
of x.
theinformation provided
I:
x 49
(A)
II:
x
I , II
Statement I:
CO
The square xof
is equal to 49.
Statement II: x is a positive number.
(B) II , I
(C) ,
CE
(D)
(E)
FI
(E) Question not attempted
65 OF 65 A man is performing a headstand yoga pose
His head is down and his legs are up. H
face is towards the East. Both his hand
, 90 stretched sideways, making a 90 angle w
Y ? his body. In which direction is his lef
CO
pointing?
(A)
(A) North
(B)
(B) South
(C)
P
(C) East
(D) (D) West
(E) (E) Question not attempted
66
E LLM 66 What does the acronym LLM stand for in
IC
?
(A) Long Learning Method
(B) Logical Learning Machine
(A) Long Learning Method
(B) Logical Learning Machine
OF(C) Language Logic Model
(D) Large Language Model
(C) Language Logic Model
(D) Large Language Model
(E) Question not attempted
F
(E)
DU15_CS2 ] 20 [ Contd...
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67
(A)
Precision) ?
PY
67 What is Precision in Machine Learning?
(A) The proportion of predicted positive
instances that are actually positiv
(B) The proportion of actual positive
(B)
(C)
(D) Precision) Recall)
CO
(C) The proportion of correct predictions
among all predictions
(D) The harmonic mean of precision and
(E)
68 (Enumeration Constants)
CE
recall
(E) Question not attempted
68 Which statement is true about enumeration
(A)
(Integer)
FIconstants?
(A) Each enumeration constant has an
(B)
(Floating-point)
OF integer value.
(B) Each enumeration constant has an
(C)
(C) Each enumeration constant has an
(Decimal)
(D) Y decimal value.
CO
1
have the value 1.
(E) (E) Question not attempted
69
,
-
Function) -
P (Application)
69 In a Python-based blockchain application,
(Cryptographic Hash which property of a cryptographic hash
(Property) function helps detect tampering of bloc
E
?
(Tampering) data? (Choose the most appropriate opti
from below)
(A)
(B)
IC (A) Polymorphism
(B) Encapsulation
OF(C) (C) Avalanche Effect
(D) (D) Dynamic Binding
(E) Question not attempted
F
(E)
DU15_CS2 ] 21 [ Contd...
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70 - -
(Search Strategy),
?
-
(BFS)
PY
70 Which search strategy in branch-and-bound
is similar to Breadth First Search (BFS
(A) FIFO search
(A) (FIFO) (B) LIFO search
(B)
(C)
(D)
(LC)
(DFS)
(LIFO)
(C) LC search
(D) DFS search CO
(E) Question not attempted
(E)
71
pii
(Fractional Knapsack) ,
(Object) , iwi ,
CE
71 Consider the Fractional Knapsack Problem
in whichi p
the thi object,
i
denotes the weight th
w of the i
xi i
m
xi
FI xi denotes the fractionth of
object,
xi
object
the i
(Feasible)
?
- (Constraint)
OF maximum capacity of the knapsack. Which
of the following constraints must neces
hold for every feasible solution?
x
x
ii
ii
x
ii Y x
ii
CO
x = m
ixi = m ii
xi > m xi > m
(E) (E) Question not attempted
72 n h P -
(BST) , 72 In a Binary Search Tree (BST)
and height
n with
nodes
h, what is the worst-case time
E
(Time Complexity)
(Worst Case)
? of a given node?
(A)
(B)
IC O (1)
O (logn)
(A)
(B)
O (1)
O (logn)
OF
(C) O (h) (C) O (h)
2
(D) O (n ) (D) O (n2)
F
(E) (E) Question not attempted
DU15_CS2 ] 22 [ Contd...
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73
(A)
( . . .) ,
(Procedure)
(Result)
- 73
PY
In a Remote Procedure Call (RPC)
mechanism, the client-side stub routine
primarily responsible for:
(A) Executing the requested procedure on
the server and returning the comput
(B)
(C)
(Message)
(Arguments)
CO
result to the client.
(B) Packing procedure arguments into a
message and sending it to the serve
(C) Managing the server process table and
coordinating the execution of remot
service requests.
(D) (Procedure) (D) Allocating memory on the server for
(E)
(Data Structures)
CE
the requested procedure and its
associated data structures.
(E) Question not attempted
74 1
14
14
FI
74 A backup cycle consists of 1 full backup
followed by 14 daily incremental backup
Each backup is stored on a separate tap
the system crashes on Day 14, how many
?
(A) 1 (B) 14
,
(C) 15 (D) 29
OF tapes must be read to perform a complet
restore?
(A) 1 (B) 14
(C) 15 (D) 29
(E) Question not attempted
(E)
75 Y 75 Consider the following steps involved in
booting process of a computer system:
(1)
CO (1) The operating system kernel is loaded
into main memory.
(2) The CPU receives a reset event and
P
(2)
memory location.
(3) The bootstrap program performs
(3) (Diagnostics) diagnostics and initializes system
components.
(4) E
(Initialization)
(
(4) The bootstrap loader reads the boot
block (or secondary bootstrap
program) from disk.
IC )
(A) (3), (2), (1), (4)
(B) (2), (3), (1), (4)
Choose the most appropriate answer from
the options given below:
(A) (3), (2), (1), (4)
OF
(B) (2), (3), (1), (4)
(C) (3), (2), (4), (1) (C) (3), (2), (4), (1)
(D) (2), (3), (4), (1) (D) (2), (3), (4), (1)
(E) (E) Question not attempted
F
DU15_CS2 ] 23 [ Contd...
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76
(A)
?
-
- UDP
PY
76 Which of the following statements best
describes UDP?
(A) Connection-oriented and reliable
transport protocol
(B)
(C) - CO
(B) Connectionless and reliable transport
protocol
(C) Connection-oriented and unreliable
(D) transport protocol
(D) Connectionless and unreliable
(E)
77
?
CE
transport protocol
(E) Question not attempted
(A) --
FI
77 Split Horizon in Distance Vector Routing
used to:
(B)
(C)
OF
(Frequency)
and routing loops
(B) Encrypt routing updates between
routers
(D) IP (C) Increase the frequency of routing
(E) Y updates
(D) Reduce the size of IP packets
78 DNS
CO
, Zone A
(Primary Server) Zone B
(E) Question not attempted
P
(Secondary Server) , 78 A DNS server acts as a Primary Server f
: Zone A and a Secondary Server for Zone
(A) This situation is:
(A) Impossible because a server can have
(B) E Zone A Zone B
only one role.
(B) Possible only if Zone A and Zone B
IC
(C) DNS
(D)
-
DNS
are in different countries.
(C) Not recommended by DNS standards.
OF
(D) Possible because a DNS servers role
Zone -
(E) Question not attempted
F
(E)
DU15_CS2 ] 24 [ Contd...
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79
(A)
(Constructivism)
,
PY
79 In constructivism, knowledge is: (Choose
the most appropriate option from below)
(A) Transmitted by the teacher
(B) Constructed by learners through
(B)
(C)
(D)
(E)
experience
CO
(C) Memorized by students
(D) Fixed and unchangeable
(E) Question not attempted
80
(A)
?
CE
80 Which of the following is an example of
intrinsic motivation? (Choose the most
appropriate option from below)
(B)
FI
(A) Working mainly to receive prize
money
(C)
(D)
(E)
OF (B) Participating mainly to earn a
(C) Performing well to obtain a promotion
(D) Desire to learn for personal satisfacti
(E) Question not attempted
81
?
Y
CO
81 Microteaching is mainly used for:
(A)
(A) Teacher training and skill development
(B)
(B) Student assessment
P
(C) (C) Curriculum evaluation
(D) (D) School inspection
(E) (E) Question not attempted
82 E 82 Find the missing number:
IC
4
5
7
6
8
9
52
89
?
4
5
7
6
8
9
52
89
?
OF(A) 128 (B) 130
(C) 132 (D) 134
(A) 128 (B) 130
(C) 132 (D) 134
F
(E) (E) Question not attempted
DU15_CS2 ] 25 [ Contd...
Text of page 26
83
void fun(){
C
static int s=1;
int d=1;
?
PY
83 What will be the output of the following
program?
void fun(){
static int s=1;
s++;
d++;
printf(%d %d,s,d);
int d=1;
s++;
d++;
CO
printf(%d %d,s,d);
}
}
int main(){
fun();
fun();
fun();
CE
int main(){
fun();
fun();
fun();
}
return 0;
(A) 2 2 2 2 2 2 (B) 2 2 3 2 4 2
}
FI
return 0;
(C) 1 1 2 2 3 3 (D) 2 2 3 3 4 4
(E)
OF
(A) 2 2 2 2 2 2 (B) 2 2 3 2 4 2
(C) 1 1 2 2 3 3 (D) 2 2 3 3 4 4
(E) Question not attempted
84 C ? 84 What will be the output of the following
int main() { Y program?
int main() {
CO
int i = 0;
while(i < 5) { int i = 0;
while(i < 5) {
i++;
P
i++;
if(i == 2)
if(i == 2)
continue;
continue;
if(i == 4)
if(i == 4)
break;
}
E
printf(%d, i);
break;
printf(%d, i);
}
IC
return 0;
}
}
return 0;
OF(A) 1 3 (B) 1 2 3 4
(C) 2 4 (D) 1 2 3
(A) 1 3 (B) 1 2 3 4
(C) 2 4 (D) 1 2 3
F
(E) (E) Question not attempted
DU15_CS2 ] 26 [ Contd...
Text of page 27
85 n
?
(Circular Queue)
PY
, 85 In a circular queue of size n, the queue
(Full) considered full when:
(A) (rear+1) % n == front
CO
(A) (rear+1) % n == front (B) rear == n 1
(B) rear == n 1
(C) front == 1
(C) front == 1
(D) front == rear
(D) front == rear
(E) Question not attempted
(E)
86
(Encapsulation)
(ADT)
?
,
CE
86 In the context of ADTs, encapsulation
means:
(A)
(B)
(Processors) FI
(A) Combining multiple processors
(B) Hiding implementation details from
(C)
(Parallel)
(Operations)
OF the user
(C) Executing operations in parallel
(D) (Contiguous) (D) Storing data in contiguous memory
(E)
Y (E) Question not attempted
87 CO (BST) 1 1000
87 Consider a Binary Search Tree (BST)
containing distinct integers from 1 to
363 , P (Integers)
(Visited)
-
During a search for the key 363, which
of the following sequences cannot occur
the sequence of visited nodes?
E ?
(A) 2, 252, 401, 398, 330, 344, 397, 363
(A) 2, 252, 401, 398, 330, 344, 397, 363
IC (B) 924, 220, 911, 244, 898, 258, 362, 363
(B) 924, 220, 911, 244, 898, 258, 362, 363
(C) 925, 202, 911, 240, 912, 245, 363
(C) 925, 202, 911, 240, 912, 245, 363
(D) 2, 399, 387, 219, 266, 382, 381, 278,
OF
(D) 2, 399, 387, 219, 266, 382, 381, 278,
363 363
F
(E) (E) Question not attempted
DU15_CS2 ] 27 [ Contd...
Text of page 28
88
(1)
(2)
UNIQUE
UNIQUE
(Primary Key)
PY
88 Consider the following statements:
(1) Every primary key constraint implies a
UNIQUE constraint.
(2) Every UNIQUE constraint implies a
primary key constraint.
(Primary Key)
(3)
(4)
NULL
- (Primary-key)
UNIQUE ,
(Primary Key)
CO
(3) Primary-key attributes cannot contain
NULL values.
(4) A relation can have multiple UNIQUE
constraints but only one primary ke
Which of the above statements are correct?
Choose the most appropriate answer from
(A) (1), (2),
(B) (2), (3)
(4)
(4)
CE
the options given below:
(A) (1), (2), and (4)
(B) (2), (3) and (4)
(C) (1), (3) and (4)
(C) (1), (3) (4)
(D) (1), (2), (3) (4)
(E)
FI
(D) (1), (2), (3) and (4)
(E) Question not attempted
89
(A)
(Trigger)
SELECT
SQL -
OF
(event)
?
89 Which of the following is a valid trigger
event in SQL?
(A) SELECT only
(B) INSERT, DELETE, UPDATE
(B) INSERT, DELETE, UPDATE (C) CREATE and DROP
(D) GRANT and REVOKE
(C) CREATE
(D) GRANT
(E)
DROP
REVOKE Y (E) Question not attempted
90
:
CO 90 Consider the tuple relational calculus
expression:
{ t | (t ! instructor) }
P
Which of the following statements is correc
{ t | (t ! instructor) }
(A) The expression is safe because it
- ?
references only one relation and do
(A)
not involve any additional variable
(B) The expression is safe because every
(B) E (Variable)
tuple in the result must belong to
instructor relation itself.
(C)
IC instructor (C) The expression is unsafe because it
may generate tuples containing valu
not present in the domain of the
OF
formula.
(D) () (D) The expression is unsafe because it
contains the negation operator ().
F
(E) (E) Question not attempted
DU15_CS2 ] 28 [ Contd...
Text of page 29
91
?
-
(Transmit)
PY
91 Which of the following multiple access
techniques allows all stations to trans
data simultaneously over the full bandw
of the channel?
(A)
(C)
(E)
(B)
(D)
(A) CDMA (B) FDMA
(C) TDMA (D) FDM
CO
(E) Question not attempted
92 ? 92 What is Delta Modulation? (Choose the
(A) - - , CE
most appropriate option from below)
(A) An analog-to-digital conversion
technique in which each sample is
encoded independently using multipl
(B) , FI bits.
(B) A multiplexing technique that
(C)
(D) (Successive)
,
OF combines multiple analog signals in
one channel.
(C) A modulation technique that varies the
frequency of a carrier signal.
--
(D) An analog-to-digital conversion
(E) Y technique that encodes the differen
between successive sample values.
93 . .
?
.
CO (E) Question not attempted
P
93 Which of the following statements about
(A) . . .
GSM is TRUE?
(A) GSM is an analog cellular system that
(B) . . . . .
uses only FDMA.
. .
(C) .E . .
(B) GSM uses only CDMA for channel
allocation.
(D)
IC . .
. . .
. . (C) GSM is a digital cellular system that
uses both TDMA and FDMA.
(D) GSM allocates one dedicated
OF (Dedicated) frequency channel to each user
permanently.
F
(E) (E) Question not attempted
DU15_CS2 ] 29 [ Contd...
Text of page 30
94 C++
(A)
,
Overloading)
Polymorphism)
PY
(Operator 94 In C++, operator overloading is an exampl
(Runtime
? of:
(A) Runtime polymorphism
CO
(B) Constructor overloading
(B) (Constructor
Overloading) (C) Hybrid inheritance
(C) (Hybrid Inheritance) (D) Compile-time polymorphism
(D) - (Compile-time (E) Question not attempted
Polymorphism)
(E)
95 (Java), (Button)
95 CE
button is pressed?
,
(Event Class) (Fire)
-
?
FI
(A) KeyEvent (B) ActionEvent
(C) MouseEvent (D) TextEvent
(A)
(C)
(E)
- (B)
(D)
OF (E) Question not attempted
96 In Java, which class is at the top of the
exception hierarchy?
96 (Java) , (Exception)
(Hierarchy) (Top) Y-
(A) Exception
CO
? (B) RuntimeException
(A) (Exception) (C) Throwable
(B) (RuntimeException) (D) Error
(C)
(D)
(E)
P
(Throwable)
(Error)
(E) Question not attempted
97 In Java, System.out and System.err are
97 E
(Java) , System.out System.err
objects of which class?
IC
(A) InputStream
(B) Reader
(Objects)
? (A) InputStream
(B) Reader
(C) OutputWriter
OF(C) OutputWriter
(D) PrintStream
(D) PrintStream
(E) Question not attempted
F
(E)
DU15_CS2 ] 30 [ Contd...
Text of page 31
98
(1)
-
?
PY
98 Which of the following statements correct
describe the key concepts of the von
Neumann architecture?
(1) Data and instructions are stored in a
(2)
(Type of Data) CO
single readwrite memory.
(2) Memory locations are addressable
without regard to the type of data
stored.
(3) ,
(3) Instructions are executed sequentially
(4) -
CE
unless the sequence is explicitly
(4) Data and instructions are always stored
in separate memories.
(A) (2), (3) (4)
FI
Choose the most appropriate answer from
the options given below:
(B) (1), (2),
(C) (1), (3)
(D) (1), (2), (3)
(3)
(4)
(4)
OF (A) (2), (3) and (4)
(B) (1), (2), and (3)
(C) (1), (3) and (4)
(D) (1), (2), (3) and (4)
(E)
(E) Question not attempted
99 8- 2s Y
11100100
99 An arithmetic right shift is performed on
CO
(Arithmetic Right Shift)
8-bit 2s complement number 11100100.
:
The result is:
(A) 01110010 (B) 11110010
(A) 01110010 (B) 11110010
P
(C) 01111001 (D) 11101000
(C) 01111001 (D) 11101000
(E)
(E) Question not attempted
100 . . . R2(07) , (0-7)
100 In the RTL notation R2(07), the expressi
(A)
E -
(07) denotes:
(B)
(C)
IC R2 , 0 7
(A) Eight different registers
(B) A memory address range
(C) A portion of register R2 consisting of
OF(D) R2
(E)
bits 0 through 7
(D) A control signal associated with R2
(E) Question not attempted
F
DU15_CS2 ] 31 [ Contd...
Text of page 32
SPACE FOR ROUGH WORK /
PY
CO
CE
FI
OF
Y
CO
P
E
IC
OF
F
DU15_CS2 ] 32 [ Contd...
Page 1 of 32
Source: Rajasthan Staff Selection Board. Question paper published by Rajasthan Staff Selection Board.