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Kerala PSC Workshop Instructor/Demonstrator in Computer Engineering Etc.. – Tech.Edn. Previous Question Paper – 095/2023

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Post NameWORKSHOP INSTRUCTOR/DEMONSTRATOR IN COMPUTER ENGINEERING etc.. - TECH.EDN.
Question Paper Code095/2023
Category Code680/2022
Date of Test19 July 2023
Medium of QuestionENGLISH
Exam TypeOMR Examination
Total Questions100
1
Which of the following special symbol can be used in a C variable name ?
Answer
C. _
2
At a time a function can return
Answer
A. one value
3
What will be the output of the following C statements ? void main()
Answer
B. 0
4
Which of the following operator is used to access structure elements ?
Answer
A. dot(.) operator
5
If there is any error while opening a file, fopen() returns
Answer
D. NUll
6
What will be the result of the following postfix expression evaluation 5 3 4 * 6 / +
Answer
A. 7
7
In a queue data structure new element is inserted at
Answer
B. rear end
8
Which of the following is a one way list ?
Answer
A. single linked list
9
In a tree a node which does not have any child is called
Answer
C. leaf node
10
Which data structure is used for backtracking in dFS traversal ?
Answer
B. stack
11
The default visibility label of a class in C++
Answer
C. private
12
Which of the following operator that cannot be overloaded ?
Answer
D. ? :
13
A derived class with several base class is called
Answer
B. multiple inheritance
14
In C++ run time polymorphism is achieved using
Answer
A. virtual functions
15
How many types of templates are in C++ ?
Answer
Question Cancelled
16
Java compiler translates source code into
Answer
B. byte code
17
Which of the following keyword is used to define interfaces in Java ?
Answer
C. interface
18
AWT in Java stands for
Answer
D. Abstract Window Toolkit
19
Which of the following is the basic class for all SWING GUI components ?
Answer
B. Jcomponent
20
Oracle Call Interface
Answer
B. Type 2 JdBC driver
21
Which are the properties of transaction in database ? i) Atomicity ii) Consistency iii) Isolation iv) Concurrency
Answer
A. i, ii and iii only
22
Another name of tuple is
Answer
A. Record
23
In an ER diagram, symbol used for an attribute is
Answer
B. Ellipse
24
In three tier architecture, query processing languages resides in
Answer
C. database tier
25
Suppose you are assigned with the task of removing all data in a table β€œStudent” without deleting table definition. Which statement is used ?
Answer
B. TRUNCATE TABlE Student
26
A stored program needs to be invoked automatically before a new record is inserted into a table. Then which of the following is more correct ?
Answer
A. Define a row level trigger
27
A telephone company wishes to give an offer validity extension of 10 more days for all customers with a plan β€œPlAN197”. Then which of the query is more correct ?
Answer
D. UPdATE Customers SET ValidPrd = ValidPrd+10 WHERE Plan = β€œPlAN197”
28
Normalization is a method to remove which of the following anomaly ?
Answer
D. All the above
29
Which of the following is a ddl STATEmENT ?
Answer
C. AlTER
30
β€œShared memory, Shared disk, Shared nothing” are the three main architectures that have been proposed for
Answer
B. Parallel databases
31
One of the following is not true in case of CmS
Answer
B. Allows website content to be accessible in a single machine only
32
Identify correct CSS rule to set all

elements on the page center-aligned, with a red text color.

Answer
Question Cancelled
33
Which is the correct syntax to call an external JavaScript file in the current HTML document ?
Answer
A.
34
Statement which is wrong about HTml dOm
Answer
C. Constructed as a linked list of Objects
35
Write function to delete a cookie named β€œuser”
Answer
D. setcookie("user", "", time()–3600);
36
Which of the following is not an example for container tag ?
Answer
C.
37
All communications between browsers and servers use ______ protocol.
Answer
A. HTTP
38
Information sent from a form with this method is invisible to others and has no limits on the amount of information to send
Answer
B. POST
39
In PHP which type of array can be used to assign Register Number to Name of student ?
Answer
C. Associative array
40
In the HTml < input> tag which type attribute is set in order to accept single-line text input but it masks the character as soon as a user enters it.
Answer
C. Password
41
Which fundamental component of Android is used to receive the notification to the user when Battery is low ?
Answer
D. Broadcast Receiver
42
dalvik Virtual machine
Answer
C. Android Runtime
43
Which Android SQlite Java Class is used to provides access to the results of a database query ?
Answer
D. Cursor
44
In which directory Androidmanifest.xml layout files are stored ?
Answer
D. /res/layout
45
Which of the following converts Java byte code into dalvik byte code ?
Answer
B. dex compiler
46
Which method is used to launch a new activity or get an existing activity to do something new ?
Answer
A. Context.startActivity()
47
you can create a custom view by extending class
Answer
C. android.view.View
48
Write a code to send SmS to another AVd with number 9946671122
Answer
C. Smsmanager sms=Smsmanager.getdefault(); sms.sendTextmessage("9946671122", null, "Have a nice day", null, null);
49
What type of CSS is the following code snippet ?

A Blue Heading

Answer
A. Inline
50
What is true about Content Providers ?
Answer
D. They handle data and database management issues
51
Convert the hexadecimal number
Answer
C. (46,687)10
52
Simplify the Boolean expressions XyZ + XZ to a minimum number of literals.
Answer
A. Z(X + y)
53
Simplify the Boolean functions F(X, Y, Z) = βˆ‘
Answer
B. Z + Xy
54
Write the equivalent Boolean expression for the following logic circuit.
Answer
D. F = ABCd
55
The OR operation can be produced with
Answer
D. both answers
56
All Boolean expressions can be implemented with
Answer
Question Cancelled
57
Which of the following codes exhibit even parity ?
Answer
C. 11010111
58
To enter a byte of data serially into an 8-bit shift register, there must be
Answer
B. eight clock pulses
59
A modulus-12 counter must have
Answer
A. 4 flip-flops
60
A 5-bit binary counter has a maximum modulus of
Answer
C. 32
61
Calculate the average CPI when a program with the instruction mix and the CPI for each instruction type given below is executed on a uniprocessor. Instruction Type CPI Instruction Mix Arithmetic and logic 1 60% load/store with cache hit 2 10% Branch 4 10% memory reference with cache miss 8 10%
Answer
A. 2
62
Calculate mIPS rate in case when a benchmark program results in the execution of 2 million instructions on a 380-mHz processor with an average CPI of 2.5.
Answer
C. 152
63
Calculate the effective CPI for the machine having clock rate of 200 mHz that gives the following measurement for a set of benchmark programs. Instruction Instruction Type Cycles Per Instruction Count (millions) Arithmetic and logic 10 1 load/store with cache hit 8 2 Branch 2 4 Others 4 3
Answer
B. 1.92
64
Consider a 32-bit microprocessor, with a 16-bit external data bus, driven by an 8-mHz input clock. Assume that this microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What is the maximum data transfer rate across the bus that this microprocessor can sustain, in bytes/s ?
Answer
A. 4 mbytes/sec.
65
A computer has a cache, main memory, and a disk used for virtual memory. What is the average time in nanoseconds required to access a referenced word on this system ? Using the case provided in table below : Location of referenced word Probability Total time for access in ns In cache 0.9 20 Not in cache but in main memory 0.06 80 Not in cache or in main memory 0.04 12000
Answer
D. 502.8
66
Consider a machine with a byte addressable main memory of 216 bytes and block size of 8 bytes. Assume that a direct, mapped cache consisting of 32 lines is used with this machine. How is a 16-bit memory address divided into tag, line number, and byte number ? A)
Answer
D. d) (8, 5, 3)
67
What is the disk capacity of a magnetic disk drive with 8 surfaces, 512 tracks per surface, and 64 sectors per track with sector size 1 KB ?
Answer
C. 256 mB
68
Consider a 32-bit microprocessor having 32-bit instructions composed of two fields, the first byte contains the opcode and the remainder the immediate operand or an operand address. What is the maximum directly addressable memory capacity (in bytes) ?
Answer
A. 16 mBytes
69
The number of 3 to 8 line decoders to construct a 9 to 512 line decoder with an enable input and without using any other logic gates are
Answer
B. 73
70
A given microprocessor has words of 1 byte. What is the smallest and largest integer that can be represented in the Ones complement representations ?
Answer
B. –127;127
71
match the following : I) SNMP
Answer
A. Host Configuration II) NFS
72
Snort is a
Answer
B. Intrusion detection System
73
Bandwidth for a signal transmitting at 12mbps for QPSK is _______. The value of d is 0.
Answer
C. 6 mHz
74
In AVR microcontroller, H flag is set to 1 if
Answer
A. there is a carry from d3 to d4
75
A topology that is responsible for describing the geometric arrangement of components that make up the lAN.
Answer
B. Physical
76
The access control policy in which an entity may be granted access rights that allow the entity, by its own volition, to enable another entity to access some resources.
Answer
A. discretionary access control
77
In 8086 microprocessor, if dS=1111H, SI=0500H, BP=5010H, CX=0000H, the address accessed by the instruction mOV CX,
Answer
D. 16620H
78
The minimum and maximum frame length of IEEE 802 lAN in bytes
Answer
D. 64 and 1518
79
The AdC of AVR has ___________ bit resolution.
Answer
Question Cancelled
80
An organization is granted address block 205.16.37.39/28, n=28. Find the first address, last address and number of addresses in the block.
Answer
A. 205.16.37.32, 205.16.37.47, 16
81
The type of firewall that examines packet data and keeps track of information about TCP connections.
Answer
B. Stateful inspection
82
Shell script command to multiply two numbers num1 and num2.
Answer
C. c= `expr $num1 \* $num2`
83
Timer 0 acts as a counter if
Answer
A. the CS02-CS00 are 110 or 111
84
At the sender side the data given is 1101 1111. If checksum error detection method (segment size=4 bits) is used, then the data to be transmitted becomes
Answer
B. 1 1 0 1 1 1 1 1 0 0 1 0
85
Computer Security triad includes
Answer
B. Confidentiality, Integrity, Availability
86
multistreaming and multihoming are allowed in ________ Protocol.
Answer
D. SCTP
87
The register is responsible for handling all the external hardware interrupts in AVR
Answer
B. GICR
88
linux command to display the owner of the processes along with the processes.
Answer
C. ps aux
89
A computer program that can to run independently and spread a fully functional copy of itself to other hosts on a network, typically through software flaws in the target system.
Answer
A. Worm
90
Using RSA algorithm, find the value of public key, if the plain text M = 5 and p = 3, q = 11 and d = 7.
Answer
A. (3, 33)
91
LDS instruction loads data from memory location to the specified register and
Answer
C. dS register
92
HdlC _______ contains system management information.
Answer
D. U Frame
93
The hashed passwords are stored separately from the user IDs in a file known as
Answer
C. Shadow password file
94
In a fibre optic cable, the signal is propagated along the inner core by
Answer
D. Reflection
95
AVR Instruction CBI PORTB,1
Answer
B. Clear the first bit of PORT B register
96
The nonmaskable interrupt in 8086
Answer
Question Cancelled
97
Attack the ability of a network server to respond to TCP-connection requests by overflowing the tables used to manage such connections.
Answer
Question Cancelled
98
An analog signal has a bit rate of 8000bps and baud rate of 1000baud. How many data elements are carried by each signal element ?
Answer
A. 8 bits/baud
99
The Bus Interface Unit of 8086 microprocessor prefetches the instruction and store in
Answer
C. Queue
100
The instruction, mOV AX,
Answer
D. Register indirect addressing mode

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