| Post Name | LECTURER IN INFORMATION TECHNOLOGY (GOVT. POLYTECHNICS) |
|---|---|
| Question Paper Code | 079/2024 |
| Category Code | 239/2023 |
| Date of Test | 5 July 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
How do CAM differ from other memory components?
Answer
B. Search
2
Which is the fastest memory component present in a computer system?
Answer
B. Cache Memory
3
Style 3:
The CSS styles used in these 3 are respectively:
Answer
C. Inline, External, Internal
4
From which microprocessors onwards the pipelining concept is implemented?
Answer
D. 8086
5
If the cache memory is divided into 1024 cache lines. What will be the width of the address
bit to fetch a word from the cache line if the size of the cache line is 8 bytes in a byte
addressable memory organization?
Answer
B. 13 bit
6
Data entered to decoder circuit from which register :
Answer
B. IR
7
The register which hold the address of control memory in micro-programmed control :
Answer
B. CAR
8
What is the width of the address bus in a 8086 processor?
Answer
C. 20 bit
9
Express 8192 in K units:
Answer
B. 8K
10
Binary equivalent of the octal number 13.54 is :
Answer
B. 1011.1011
11
Next address generator is present in which control memory organization?
Answer
A. Micro-Programmed Control
12
Which is the uni directional bus?
Answer
A. Address bus
13
The word βBEAUTIFULβ is stored in a memory location with a starting of 1500 in little
endian notation. If the processor is a 16 bit and it wants to fetch a word from the memory
1502, what is the word?
Answer
D. FI
14
8086 is a CISC Processor :
Answer
A. Yes
15
Register which is hold the stating address information of a segment in segmented memory
organization :
Answer
Question Cancelled
16
Which of the following is also known as half adder?
Answer
A. EXCLUSIVE OR
17
From which processor onwards the segmented memory concept implemented :
Answer
D. 8086
18
Time taken for the execution of M instruction with N stages in a pipelined system is :
Answer
C. N+(Mβ1)
19
RISC stands for :
Answer
D. Reduced Instruction Set Computer
20
Which pointer can produce carbon copy of printed data?
Answer
Question Cancelled
21
In order to transfer huge amount of data which data transfer scheme is suitable :
Answer
C. DMA
22
Solve the equation for X: Xββ = 11001000β.
Answer
A. 200
23
Which of the following is a Universal Gate?
Answer
C. NAND
24
A positive AND gate is also a negative :
Answer
C. OR gate
25
_________ is the fastest logic family, itβs used in high speed applications.
Answer
C. ECL
26
Which of the following is NOT a valid deadlock prevention scheme?
Answer
C. Never request a resource after releasing any resource
27
Consider the following statements about process state transitions for a system using
pre-emptive scheduling :
I. A running process can move to ready state.
II. A ready process can move to running state.
III. A blocked process can move to running state.
IV. A blocked process can move to ready state.
Which of the above statements are TRUE?
Answer
C. I, II and IV only
28
In the context of operating systems, which of the following statements is/are correct with
respect to paging?
I. Paging helps solve the issue of external fragmentation
II. Page size has no impact on internal fragmentation
III. Paging incurs memory overheads
IV. Multi-level paging is necessary to support pages of different sizes
Answer
C. I and III only
29
Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and
250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of
sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used,
which partitions are NOT allotted to any process?
Answer
A. 200 KB and 300 KB
30
A process executes the code:
fork
Answer
C. ;
The total number of child processes created is
31
A common issue that needs to be avoided while using binary semaphores:
Answer
D. deadlock
32
Which of the following stage triggers the CPU switch from user program to interrupt
processing?
Answer
C. interrupt signalled
33
In the context of fork
Answer
C. A child process whose parent has terminated
34
Which of the following instructions should be privileged?
Answer
Question Cancelled
35
Which of the following statement is true?
Answer
A. Physical address is generated by Memory Management Unit (MMU)
36
Which of the following statement is false about critical section problems?
Answer
B. Dekkerβs algorithm can handle more than two processes efficiently
37
In a timeshare operating system, when the time slot assigned to a process is completed, the
process switches from the current state to?
Answer
C. Ready state
38
Which of the following scheduling reduces process flow time?
Answer
C. SJF
39
If a page number is not found in the translation lookaside buffer, then it is known as :
Answer
A. Translation Lookaside Buffer miss
40
A CPU scheduling algorithm determines an order for the execution of its scheduled processes.
Given βnβ processes to be scheduled on one processor, how many different schedules are
possible in terms of βnβ :
Answer
C. n!
41
An object that groups operations that are all used by some superior level of control, or
operations that all use some juniorβlevel set of operations, is a kind of :
Answer
C. Virtual Machine abstraction
42
Which of the following statements are correct about Class in JAVA programming?
I. You can put the two classes into one file, but only one class in the file can be a public
class.
II. The public class must have the same name as the file name.
III. Each class in the source code is compiled into a .exe file.
Answer
A. I and II
43
In lazy initialization, object reference can be initialized :
Answer
C. right before you actually need to use that object
44
Abstract classes can be used to:
Answer
B. create object reference
45
Variables can be declared inside interface declaration. Following are the statements
regarding the variables in an interface in JAVA :
I. They are static.
II. They cannot be changed by the implementing class.
III. Variables are implicitly public.
Which of the statements are true?
Answer
D. I, II and III
A 9 079/2024
46
Exception is a subclass of :
Answer
A. Throwable class
47
The use of Thread.yield() inside run
Answer
B. switch to another task
48
Version control or version management is a task of :
Answer
C. Software configuration Management Process
49
Scenario in a Use-Case diagram is :
Answer
C. A set of actions that are performed to achieve a goal under some specified
conditions
50
To determine the initial effort Eα΅’ in person-months, the equation used is of the type Eα΅’ = a(KLOC)α΅. The value of the constants a and b depends on the project type and KLOC is the measure of size. In COCOMO, projects are categorized into three typesβorganic, semi-detached and embedded. The values of a and b for embedded systems are:
Answer
B. (2.8, 1.20)
51
The inflow refers to input sources and outflow refers to output destinations. The module
design complexity (in term of the total amount of data flowing in and out of the module and
the module size) Dc is defined as :
Answer
A. Dκ = size Γ (inflow Γ outflow)Β²
52
The McCabe Cyclomatic number for a given set of code is:
Β’{
1. i=1;
2. while (i <= n) {
3. j=1,
4, while Gj <=1) {
5. if
6. swap
7. j=jtl; }
8. i=it+1; }
9. }
Answer
A. 4
53
There is a set of code :
char*foo(int s)
Answer
B. Memory leaks error
54
Test Oracle is a mechanism used to :
Answer
D. Check the correctness of the output of the program for the test case
55
The Jelinski-Maranda model is known reliability model. The reference procedure for
Jelinski-Maranda model is called
Answer
A. Maximum likelihood estimation
56
Which data structure is having the feature βFirst In Last Outβ ?
Answer
A. stack
57
How many items will be there in a circular queue implemented using array
Answer
C. 5
58
What is the postfix representation of the expression P+Q*MβN ?
Answer
B. PQM*+Nβ
59
Write the inorder traversal of a binary search tree whose preorder traversal is 8, 4, 3, 6, 10,
9, 15 :
Answer
A. 3,4,6,8,9,10,15
60
Which data structure is used for performing the Breadth First Search in a graph?
Answer
B. queue
61
What is the number of leaf nodes in a full binary tree, if number of internal nodes is N?
Answer
D. N+1
62
If a node having two children is to be deleted from binary search tree then it will be replaced
by its :
Answer
B. Inorder successor
63
How many edges will be there in a complete graph with 7 nodes?
Answer
C. 21
64
In case of linked list, which of the following is true?
Answer
B. only sequential access
65
Which data structure is used for implementing recursion?
Answer
A. stack
66
Consider the two relations :
Branch:
branch-name branch-city assets
Brighton Brooklyn 7100000
Downtown Brooklyn 9000000
Mianus Horseneck 400000
North Town Rye 3700000
Perryridge Horseneck 1700000
Pownal Bennington 300000
Redwood Palo Alto 2100000
Round Hill Horseneck 8000000
Account:
account-number branch-name balance
Answer
C. 14
67
Consider an ER diagram with 3 entity sets A, B and C and two relationship sets X and Y
where, A & B are strong entity sets and C is a weak entity set. X is a one to many binary
relationship from A to B and the participation is total in many side. Y is an identifying
relationship set between B and C. The attributes for A are {A1, A2, A3}, B are {B1, B2}, C are
{C1, C2}. Which of the following is a correct attribute set for one of the tables while
converting to minimum number of tables?
Answer
A. {B1, B2, A1}
68
Which of the following is false with respect to weak entity sets?
Answer
C. The relationship set between weak entity set and strong entity set is identifying
entity set
69
Consider the two relations :
Loan
Loan-number branch-name balance
L-11 Round Hill 900
L-14 Downtown 1500
L-15 Perryridge 1500
L-16 Perryridge 1300
L-17 Downtown 1000
L-23 Redwood 2000
L-93 Mianus 500
Lending:
Branch-name branch-city assets customer-name loan-number amount
Downtown Brooklyn 9000000 Jones L-17 1000
Redwood Palo Alto 2100000 Smith L-23 2000
Perryridge Horseneck 1700000 Hayes L-15 1500
Downtown Brooklyn 9000000 Jackson L-14 1500
Mianus Horseneck 400000 Jones L-93 500
Round Hill Horseneck 8000000 Turner L-11 900
Pownal Bennington 300000 Williams L-29 1200
North Town Rye 3700000 Hayes L-16 1300
Downtown Brooklyn 9000000 Johnson L-18 2000
Perryridge Horseneck 1700000 Glenn L-25 2500
Brighton Brooklyn 7100000 Brooks L-10 2200
How many tuples do Lending Full outer Join loan have?
Answer
D. 12
A 15 079/2024
70
Consider the following ER diagram: Identify where a new attribute Access date that
describes the date on which the loan has been accessed recently, could be placed without null
values?
Answer
D. Borrower Relationship set or loan entity set
71
Consider the following transactions which are executed concurrently :
T1 : lock-X(
Answer
A. ;
read
72
Which of the following is not the functions of Query processor in database system
architecture?
Answer
B. Manages allocation of space on disk, data structures used to represent
information
73
The relation schema R has attributes name A, B, C, D and E. If R has the following
functional dependencies, then find the most appropriate normal form?
ABC β> E
DB β> E
CD β> A
Answer
A. 1NF
74
For the relational schema R
Answer
D. 4
75
What does numeric (4, 2) allows to store in SQL?
Answer
A. 44.44
76
The Accounts Department in a University has 10 employees, and each has a desktop
computer to run the financial software. All 10 desktop computers are connected to a single
printer to optimize operational expenses. What type of network would you recommend to this
department?
Answer
B. LAN
77
What is one of the key differences between features of ISO/OSI and TCP/IP network models?
Answer
B. More number of layers in OSI model makes better troubleshooting and improving
network performance more straightforward.
78
In a sliding window protocol, the receiver window βββββββββ in size when new frames are
received and the receiver window βββββββββ in size when the acknowledgments are sent.
(1) increases
(2) decreases
(3) remains the same
Answer
B. 2 and 1 respectively
79
Automatic Repeat Request
Answer
B. 3 and 1
80
Which of the following delays are faced when a sender host sends data to a receiver host
through the internet when using packet switching?
(1) path establishment
(2) transmission
(3) propagation
(4) queuing
(5) processing
Answer
C. 2, 3, 4 and 5
81
Which of the following is false concerning to radio waves?
Answer
C. The sender and receiver antennas need to be aligned
82
Cyclic Redundancy Code
Answer
A. 11001001011
83
If a node in a network transmits 4000 frames per second, and each node has 8-bits
multiplexing slot, then which multiplexing technique is used in this case?
Answer
C. Time Division Multiplexing (TDM)
84
If Tp is the maximum possible propagation delay between 2 most widely separated stations
and Tfr is the average time required to send out a frame, the vulnerable time (in which there
is a possibility of collision) for CSMA is:
Answer
A. Tp
85
In the Asynchronous Transfer Mode
Answer
B. uses virtual circuit routing
86
Which of the following are features of IPv6?
(1) Checksum field is available
(2) Fragmentation is performed only by the sender
(3) Broadcast Message Transmission Scheme
(4) Any cast message transmission scheme
(5) Autoconfiguration of addresses
(6) Network Address Translation (NAT) is required
Answer
D. 2, 4, 5
87
Assume that a network system has an n-layer protocol hierarchy. Applications generate
messages of length M bytes. At each of the layers, an h -byte header is added. What fraction
of the network bandwidth is utilized for data transmission?
Answer
C. (M β h β n )
88
A small organization has a class C address (196.125.56.0) and needs 5 sub-networks, each
with 25 hosts. What is the subnet mask?
Answer
A. 255.255.255.224
89
In Additive Increase Multiplicative Decrease
Answer
D. min(rwnd, cwnd)
A 19 079/2024
90
With respect to OSPF routing protocol, select the feature it has:
Answer
B. Utilizes event-triggered updates
91
Which devices receive packets from the network layer and transmit them into the datalink
layer after the formation of frames?
(1) Gateway
(2) Hub
(3) Router
(4) Switch
(5) Bridge
(6) Modem
(7) NIC
Answer
Question Cancelled
92
Routing of data through the Internet is done based on:
Answer
B. the destination IP address in the IP packet
93
A certificate authority
Answer
C. A) is a trusted entity that issues digital certificates. From the
certificate, the certificate authority authenticates the:
94
nslookup command queries the βββββββββ in order to find the IP address for a given fully
qualified domain name.
Answer
C. Domain Name Service
95
βββββββββ HTTP request method performs a message loop-back test along the path to the
target resource and returns a copy of the complete HTTP request message, including start
line, header fields and body, received by the server.
Answer
D. TRACE
96
Consider the following Cascading Style Sheets (CSS) rules:
1. Style 1:
The contents of file.css are
h3 { font.family : Arial ; color : red; }
p { font.family : Times New Roman ; color : blue ; }
2. Style 2:
3. Style 3: The CSS styles used in these 3 are respectively:
Answer
D. External, Inline, Internal
97
Multiple Style Sheets can be defined on one HTML page. What is the order in which style
sheets precedence is defined?
Answer
A. Important > Inline > Internal > External
98
Which one of the following functions is used to kill only the specified session variable in PHP?
Answer
B. unset()
99
Consider the below 2 programs in JavaScript:
function compare1( ) function compare2( )
{ {
let a = 2 ; let a = 2 ;
let b = 2.0 ; let b = 2.0 ;
if
Answer
A. ==
100
With My SQL, how do you select all the records from a table named βschoolβ with the value of
the column βnameβ starts with βAβ?
Answer
D. SELECT * FROM school WHERE name LIKE βA%β
ββββββββ
079/2024 22 A
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