2024
29-06-2024
Computer Application- ICAR JRF/SRF 2024
Official solved question paper with verified bilingual step-by-step solutions and key concepts. आधिकारिक हल प्रश्न पत्र — विस्तृत द्विभाषी व्याख्या, प्रामाणिक उत्तर कुंजी एवं मुख्य अवधारणाओं सहित।
Questions in this Paper इस प्रश्न पत्र के प्रश्न
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Movement of DNA from one bacterium to another through a tubular bridge or pilus:
Which of the following is responsible for eliminating toxic oxygen by-products from cells?
form of multiple parasitism in which a parasite preferentially attacks a host that is already parasitized by another species is
known as
For mass multiplication of DD-136 nematode, the common host used is
Chlorpyriphos methyl is effective against stored product insects except
Which of the following insects often cause inhalational allergies in human following large emergence of adult insects
Given below are two statements
Statement (|); Climate is a weather condition related to smaller areas at a given place and at a given time.Statement (II) : Weather is a condition of atmosphere at a given place and at a given time
In light of the above statements, choose the most appropriate answer from the options given below.
The local name of cyclone in Philippines is
Which one of the following are secondary tillage implements?
(A) .Subsoiler
(B) .Cultivator
(C) .Disc harrow
(D) . Wetland plough
Choose the correct answer from the options given below:
is the most suitable, drought resistant and persistant grass?
The rainfed area in India is approximately
Which nutrient is often a limiting factor in agricultural production?
What is a potential disadvantage of agroforestry systems?
Pungency in mustard oil is due to
Sesamum belongs to the family
Dark period is critical in which type of plant?
Which of the following is NOT a significant contributor to greenhouse gas emissions from livestock farming?
Fe deficiency is mostly seen in crops growing on
EDV (Essentially Derived Varieties) are those which are derived from
What is the role of "companion planting" in agriculture?
If the correlation coefficient between body weight of full sibs is 0.25, then the heritability of this trait in this population is
At what allelic frequency is the heterozygous genotype (Aa) twice as frequent as the homozygous genotype (aa) in a Hardy-
Weinberg population?
If x ~N(0,1) and y = x2, then the correlation between X and Y is
Ifan individual of genotype AaBbCcDd is testcrossed, how many different phenotypes can appear in the progeny?
If in the analysis of variance of a completely randomized design, the df. for the treatment sum of squares is 4 and the mean
sum of squares due to error is 2, while the observed F-value for testing significance of treatment differences is 12.5, then
which one of the following represents correctly the treatment sum of squares?
If two Latin squares each of the same order are such that when one is superimposed over the other, each symbol of one falls
on each symbol of the other once and only once, then the two Latin squares are said to be
The following is a BIBD with parameters $v = 4, b = 4, k = 3, r = 3, \lambda = 2$:
Block 4 contains:
| Block | Treatments |
|---|---|
| Block 1 | 1, 2, 4 |
| Block 2 | 2, 3, 4 |
| Block 3 | 1, 3, 4 |
| Block 4 | ? |
coin is tossed until a head appears. What is the expectation of the number of tosses required?
Of the 36 accounts drawn randomly from a very large number of accounts in a certain bank, 12 had a deposit of less than
Rs. 1500. The estimated standard error for the estimate of the proportion of accounts having a deposit of less than Rs. 1500
is
‘Two samples of size n ate selected, one according to SRSWR and the other according to SRSWOR. Under SRSWR, V;
stands for variance of sample mean based on all units while V2 stands for the variance of sample mean based on distinct
units. V3 stands for the variance of sample mean based on SRSWOR. Which one of the following holds ?
Asimple random sample of 4 households was drawn from a village containing 120 households. The number of persons per
household in the sample were 6, 4, 7 and 3. The estimate of the total number of people in the village is
If the events $A_1, A_2, \dots, A_n$ are independent and $P(A_i) = \frac{1}{1+i}$ for $1 \le i \le n$, then the probability that none of these $n$ events occurs is:
1. $\frac{1}{n+1}$
2. $\frac{n-1}{n+1}$
3. $\frac{n}{n+1}$
4. $1 - \frac{1}{n+1}$
A committee of 4 people is to be appointed from 3 officers of the production department, 4 officers of the purchase
department, 2 officers of the sales department and 1 chartered accountant. The probability that the chartered accountant
must be in the committee is
In an experiment, the experimenter observes proportion of individuals affected by a disease in each of the plots by examining
a random sample of individuals within each piot. If p is the observed proportion, then the appropriate variance stabilizing
transformation in this case will be
The Neyman-Pearson fundamental lemma gives the method of construction of
Which one of the following non-parametric tests is analogous to Chi-square test of goodness of fit?
Which of the following statement(s) are correct?
(A) . Mean and variance are equal for Poisson distribution
(B) . Mean is greater than variance for binomial distribution.
(C) . Mean is less than variance for Chi-square distribution
Choose the correct answer from the options given below:
In a Chi-square test, the contingency table has 5 rows and 5 columns. What is the number of degrees of freedom?
Match List-I with List-II:
Choose the correct answer from the options given below:
Which of the following is NOT a bioinformatics database?
The term "phylogenetic tree” is used in:
What is a common application of bioinformatics in personalized medicine?
The central dogma of molecular biology states that
In bioinformatics, the term "homology" refers to:
Which of the following is an example of a bioinformatics algorithm used for sequence alignment?
Computational biology involves the use of.
Which one of the following is an example of primary database?
Given below are two statements regarding substitution matrices
Statement (I) : The PAM substitution matrices were derived using local multiple alignments.
Statement (II) : The BLOSUM matrices were derived using substitution frequencies derived from sets of closely related
protein sequences.
In light of the above statements, choose the most appropriate answer from the options given below.
Consider the following terminologies used in phylogenetic analysis
(A) . The lines in a tree are called branches or edges.
(B) . Internal branch is located between two nodes.
(C) . Root is the common ancestor of all taxa
Choose the correct answer from the options given below:
The number of possible unrooted trees for 5 operational taxonomic units is
Given below are two statements regarding protein structure prediction methods
Statement (I) : Ab initio method predicts protein structures based on sequence homology with known structures
Statement (II) : Homology modeling, also known as comparative modeling attempts to produce all-atom protein models based
on sequence information alone without the aid of known protein structures.
In light of the above statements, choose the most appropriate answer from the options given below.
Match List-I with List-II:
Choose the correct answer from the options given below:
Consider the following statements regarding various functions used in Per!
(A) . The splice() function is a general purpose function to add or remove array elements
(B) . The push() function may be used to append a list of items to the beginning of an array,
(C) . The unshift() function prepends a list of items to the end of an array.
Choose the correct answer from the options given below:
Which of the following is not a supervised learning method?
In Artificial Intelligence, an environment is uncertain if it is
Choose the one which is not an Ensemble Modeling Technique
Software does not wear-out in the traditional sense of the term, but software does tend to deteriorate as it evolves, because
Which statement is correct about the Multiplexer?
Which one of the following is a FIFO data structure
Thomson Reuters was created by the Thomson Corporation's purchase of the --------------company, Reuters Group.
Following is used for storing a single Bit in Computer
Which of the following is not an application software?
The maximum number of processes that can be in ready state for a computer system with n CPUs is in
2. n?
328
328
4. Independent of n
Consider the processes given below:
What is the waiting time of process P3 using shortest job first (pre-emptive)?
| Process | Arrival Time | Service Time (Burst) |
|---|---|---|
| P1 | 0.001 | 8 |
| P2 | 4.001 | 6 |
| P3 | 14.001 | 4 |
| P4 | 16.001 | 2 |
Which of the communication modes support two way traffic but only one direction at a time?
The loss in signal power as light travels down the fibre is called
of a set of n elements is an arrangement of the elements in a given order:
Which of the following are non linear type of data structure?
(A) .Tree
(B) .Graphs
(C) .Hash tables
(D) .List
Choose the correct answer from the options given below:
Which of the follwoing is a type of polymorphism in JAVA Programming?
Using which of the following keywords can an exception be generated?
In RDBMS, different classes of relations are created using technique to prevent modification anomalies.
Let R1(a, b, c) and R2(x, y, z) be two relations in which ais the foreign key of R1 that refers to the primary key of R2 Consider the following four options
(A) .Insert into R1
(B) .Insert into R2
(C) .Delete from R1
(D) .Delete from R2
Which of the following is correct about the referential integrity constraint with respect to above?
Choose the correct answer from the options given below:
Check the following statements
a. Data Communication manager is a part of DBMS.
b. Data Communication manager is an autonomous system in its own right
Choose the correct option
The Conceptual View is the representation of
The difference among various types of flip-flops is in the.
(A). Number of inputs they possess
(B). Manner in which the inputs affect the binary state
Choose the eorreet answer from the options given below:
The transfer of new information into a register is referred to as -—-----------the register.
Let $m = (313)_4$ and $n = (322)_4$. Find the base 4 expansion of $m + n$:
1. $(635)_4$
2. $(32312)_4$
3. $(1301)_4$
4. $(21323)_4$
Match List-I with List-II:
Choose the correct answer from the options given below:
What does the following logic diagram represent?
1 Qo
J Q J Q7-Q
cik—-\$ = a
K Q K Q
In context of Lexical Analyzer, Sw represents:
The lexical analysis of various modern computer languages like Java requires the power of which of these machine models
ina sufficient and necessary sense?
Which of the following problems is undecidable?
ais a full-featured, Interactive Development Environment (IDE) created by Microsoft for the development of
NET applications.
Hadoop Distributed File System is written in this language:
Which one is not a feature of Thin clients.
This read-only property returns the name of the instance of the SQL Server database used by the SqlConnection object
A programmer defines multiple -—-------------------, as a way to logically group identifiers based on their use.
-...+ is the probability that a program is operating according to requirements at a given point in time.
Source code translation and Program modularization are the activities of
In Software Configuration Management (SCM), which of the following is a use-case supported by standard version control systems?
(A) . Managing several versions or releases of a software
(B) . Filing bug reports and tracking their progress
(C) . Allowing team members to work in parallel
(D) . Identifying when and where a regression occurred
Select the correct option:
Which of the following testing techniques ensures that the software product runs correctly after the changes during
maintenance?
Which one of the following is not typically provided by Source Code Management Software?
Consider the following tables:
Students:
Performance:
Query: `SELECT S.Name, Sum(P.Marks) FROM Students S, Performance P WHERE S.Roll-No = P.Roll-No GROUP BY S.Name;`
The number of rows returned by the above query is:
Students:
| Roll-No | Name |
|---|---|
| 18CS101 | Ramesh |
| 18CS102 | Mukesh |
| 18CS103 | Ramesh |
| Roll-No | Course | Marks |
|---|---|---|
| 18CS101 | DBMS | 60 |
| 18CS101 | Compiler Design | 65 |
| 18CS102 | DBMS | 80 |
| 18CS103 | DBMS | 85 |
| 18CS102 | Compiler Design | 75 |
| 18CS103 | Operating System | 70 |
The number of rows returned by the above query is:
Consider the context-free grammar $G$:
$$S \to aSb \mid X$$
$$X \to aX \mid Xb \mid a \mid b$$
where $S$ and $X$ are non-terminals, and $a, b$ are terminals. Starting non-terminal is $S$. Which statement is CORRECT?
Consider the Deterministic Finite Automata (DFA) on alphabet {0, 1} with states {s, p, q, r}, start state s and single final state p. Which regular expression describes the language accepted?
There has been a rumour that when IBM shut down the IBM 7094 at MIT in 1973, they found a low-priority process that had
been submitted in 1967 and had not yet been run. The reason behind this problem is due to:
Which one of the following is not true?
Which one of the following errors will not be handled by the operating system?
Which one of the following is not a real time operating system?
What is bootstrapping called?
Which is the port number of PoP?
Identify the major difference between SNMPv3 and SNMPv2.
Why are parity bits used?
Identify among the following addresses which belongs to class A networks
Calculate the maximum efficiency of pure ALOHA at G = 0.5.
In the worst case, the number of comparisons needed to search a singly linked list of length n for a given element is
Match List-I with List-II based on Abstract Data Type (ADT) concepts:
Choose the correct answer from the options given below :
Suppose a circular queue of capacity (n— 1) elements is implemented with an array of n elements. Assume that the insertion
and deletion operation are carried out using REAR and FRONT as array index variables, respectively. Initially, REAR =
FRONT = 0. The conditions to detect queue full and queue empty are:
A Structure is of the form
If condition, then:
[Module A]
Else:
[Module B]
[End of if structures]
Whatis this structure?
The notation is used when the function g(n) defines a lower bound for the function f(n).
Which one of the following is not a Java feature?
What will be the output of the following Java Code? ```java class Increment { public static void main(String args[]) { int g = 3; System.out.print(++g * 8); } } ```
1. 32
2. 33
3. 24
4. 25
Which keyword is used to define the macros in C++?
What is the value of `p` in the following C++ code snippet? ```cpp #include using namespace std; int main() { int p; bool a = true; bool b = false; int x = 10; int y = 5; p = (x | y) + (a + b); cout << p; return 0; } ```
1. 12
2. 0
3. 2
4. 16
Identify the correct range of signed char.
To remove two source of heterogeneity in the experimental units we may use
Which one of the following statements is correct?
If for a binomial distribution mean is 7 and variance is 6, then the probability of success 'p' is equal to:
1. 1/49
2. 1/42
3. 1/7
4. 6/7
A company engaged in the manufacture of talcum powder of various varieties has found a new perfume for the talcum
powder. It wants to bring out the new perfumed powder to the market in only one size. It has data on sales of various sizes of
its existing product. Based on which measure of central tendency would the company decide on the size of the new product
to be marketed?
A fair coin is tossed $n$ times. If $X$ and $Y$ denote the number of heads and number of tails turned up respectively, then the correlation between $X$ and $Y$ is:
1. 0
2. 0.5
3. +1
4. -1
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