Kotlin Mock Test 1 - Online MCQ Exam

Choose the best answer. Prior to using a pointer variable

1 Mark(s)

Your Answer:

It should be declared. It should be declared.
It should be initialized. It should be initialized.
It should be both declared and initialized.
None of these. None of these.

Ferns, orchids, ants, birds, fungi and microorganisms reside in a tree hence tree is their:

1 Mark(s)

Your Answer:

home home
shelter shelter
nest nest
habitat habitat

A pattern of 0s and 1s can be represented as a:

1 Mark(s)

Your Answer:

cyclic code cyclic code
modulo-2 modulo-2
polynomial polynomial
coefficient coefficient

SQL allows the use of the logical connectives and, or, and not in the:

1 Mark(s)

Your Answer:

Define clause Define clause
From clause From clause
Where clause Where clause
Select clause Select clause

What will be the output of the following code: int i = 0; while (i < 3) { cout << i << " "; i++; } in C++?

1 Mark(s)

Your Answer:

Compilation error Compilation error
1 2 3 1 2 3
0 1 2 3 0 1 2 3
0 1 2 0 1 2

What will be printed after execution of the following program code? main() { printf("\\nab"); printf("\\bsi"); printf("\\rha"); }

1 Mark(s)

Your Answer:

absiha absiha
asiha asiha
haasi haasi
hai hai
None of these None of these

What will happen if white space is repeatedly used around the object?

1 Mark(s)

Your Answer:

It will reduce the readability It will reduce the readability
It will create a border It will create a border
It will make it more appealing by augmenting the object
All of the above All of the above

What will be the output of the following Python code snippet? total={} def insert(items): if items in total: total[items] += 1 else: total[items] = 1 insert('Apple') insert('Ball') insert('Apple') print (len(total))

1 Mark(s)

Your Answer:

3 3
1 1
2 2
0 0

Which two models doesn’t allow defining requirements early in the cycle?

1 Mark(s)

Your Answer:

Waterfall & RAD Waterfall & RAD
Prototyping & Spiral Prototyping & Spiral
Prototyping & RAD Prototyping & RAD
Waterfall & Spiral Waterfall & Spiral

What does the ensure keyword do in Ruby exception handling?

1 Mark(s)

Your Answer:

It rescues specific types of exceptions It rescues specific types of exceptions
It raises an exception It raises an exception
It defines a new module It defines a new module
It ensures that a block of code is always executed, regardless of whether an exception is raised or not

What is the correct way to declare a jagged array in C#?

1 Mark(s)

Your Answer:

int[][][] jaggedArray; int[][][] jaggedArray;
int[,] jaggedArray; int[,] jaggedArray;
jaggedArray[] jaggedArray[]
int[][] jaggedArray; int[][] jaggedArray;

What will be the output of the following Java program? import java.util.*; class Maps { public static void main(String args[]) { HashMap obj = new HashMap(); obj.put("A", new Integer(1)); obj.put("B", new Integer(2)); obj.put("C", new Integer(3)); System.out.println(obj); } }

1 Mark(s)

Your Answer:

{A 1, B 1, C 1} {A 1, B 1, C 1}
{A, B, C} {A, B, C}
{A-1, B-1, C-1} {A-1, B-1, C-1}
{A=1, B=2, C=3} {A=1, B=2, C=3}

Perfect diamagnets are:

1 Mark(s)

Your Answer:

conductors conductors
insulators insulators
superconductors superconductors
semiconductors semiconductors

Which control is used to allow users to select a file from the file system in a Windows Forms Application?

1 Mark(s)

Your Answer:

OpenFileDialog OpenFileDialog
SaveFileDialog SaveFileDialog
PrintDialog PrintDialog
ColorDialog ColorDialog

Database that contains the users, shares and features of a network is:

1 Mark(s)

Your Answer:

enterprise directory enterprise directory
distributed application distributed application
shell shell
operating environment operating environment

What will be the output of the following C++ code? #include <stdio.h> #include<iostream> using namespace std; int main() { int a = 5, b = 10, c = 15; int arr[3] = {&a, &b, &c}; cout << *arr[*arr[1] - 8]; return 0; }

1 Mark(s)

Your Answer:

15 15
18 18
garbage value garbage value
compile time error compile time error

What will be the output of the following C++ code? #include <iostream> #include <string> using namespace std; class A { static int a; public: A() { cout<<"Object of A is created\n"; } void show() { a++; cout<<"a: "<<a<<endl; } }; class B { public: }; int main(int argc, char const *argv[]) { A a1, a2; A a3 = a1 + a2; return 0; }

1 Mark(s)

Your Answer:

Runs perfectly Runs perfectly
Run-time Error Run-time Error
Segmentation fault Segmentation fault
Compile-time Error Compile-time Error

ESD would cause the most damage to component of computer which s:

1 Mark(s)

Your Answer:

power supply power supply
expansion board expansion board
monitor monitor
keyboard keyboard

What protocol does PPP use to identify the Network layer protocol?

1 Mark(s)

Your Answer:

NCP NCP
ISDN ISDN
HDLC HDLC
LCP LCP

How does Hadoop support encryption at rest for data stored in HDFS?

1 Mark(s)

Your Answer:

Implementing SSL/TLS encryption for data transit
Configuring transparent data encryption (TDE)
Using IPsec for secure communication Using IPsec for secure communication
None of the above None of the above

How is it possible that both programs and data can be stored on the same floppy disk ?

1 Mark(s)

Your Answer:

A floppy disk has two sides, one for data and one for programs
Programs and data are both software, and both can be stored on any memory device
A floppy disk has to be formatted for one or for the other
Floppy disks can only store data, not programs

If birth rate Ub and death rate Ud of number of bacteria are proportional to number of bacteria present and Ub=Ud then at t=0, number of bacteria:

1 Mark(s)

Your Answer:

stays stable stays stable
grows exponentially grows exponentially
decays exponentially decays exponentially
moves randomly moves randomly

In SI system the unit for speed is written as:

1 Mark(s)

Your Answer:

meter meter
meter/sec meter/sec
meter/hour meter/hour
km/sec km/sec

How to get difference between two dates?

1 Mark(s)

Your Answer:

long diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();
long diffInMilli = java.time.difference(dateTime1, dateTime2).toMillis();
Date diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();
Time diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();

What will be the output of the following C# code? static void Main(string[] args) { String c = "Hello"; String a ; a = c.Replace('l', 'w'); Console.WriteLine(a); Console.ReadLine(); }

1 Mark(s)

Your Answer:

Helloll Helloll
Hewlo Hewlo
Helwo Helwo
Hewwo Hewwo

How do you access the last element of an array named 'values' in C#?

1 Mark(s)

Your Answer:

values[length(values)]; values[length(values)];
values[values.Length - 1]; values[values.Length - 1];
Last(values); Last(values);
None of the above None of the above

Microwaves transmission, coaxial cables and fiber optics are examples of:

1 Mark(s)

Your Answer:

modems modems
routers routers
transmission media transmission media
ring networks ring networks

If two bodies collide and their motion is along a single axis, the collision is:

1 Mark(s)

Your Answer:

one dimensional one dimensional
two dimensional two dimensional
three dimensional three dimensional
four dimensional four dimensional

#pragma GCC poison should be followed by a list of identifiers that are . . . . . . . .

1 Mark(s)

Your Answer:

even in number even in number
odd in number odd in number
valid valid
invalid invalid

Which of the following is true about inline function?

1 Mark(s)

Your Answer:

Reduces function call overhead Reduces function call overhead
Always increases code size Always increases code size
Cannot take parameters Cannot take parameters
Must return void Must return void

The Transmission Control Protocol/Internet Protocol (TCP/IP) layer is equivalent to combined Session, Presentation and:

1 Mark(s)

Your Answer:

network layer network layer
application layer application layer
transport layer transport layer
both a and c both a and c

What is the syntax for a single-line comment in C++?

1 Mark(s)

Your Answer:

-- --
# #
// //
/* */ /* */

In Internet explorer, favorites bar can be shown and hidden by choosing it in toolbars option under……………tab?

1 Mark(s)

Your Answer:

View View
Edit Edit
Help Help
None None

The command to actually run the program is:

1 Mark(s)

Your Answer:

javaCompile javaCompile
javaRun javaRun
javax javax
java java

Which of the following type is provided by C++ but not C?

1 Mark(s)

Your Answer:

int int
bool bool
float float
double double

Which of the following is a way to retain an object in memory?

1 Mark(s)

Your Answer:

Console Log Console Log
Closures Closures
Destory objects Destory objects
All of the mentioned All of the mentioned

. . . . . . . . is A WEb And SOcial Mashup Engine.

1 Mark(s)

Your Answer:

ServiceMix ServiceMix
Samza Samza
Rave Rave
All of the mentioned All of the mentioned

To display the contents of folders in Window Explorer we should ?

1 Mark(s)

Your Answer:

Click on it Click on it
Collapse on it Collapse on it
Name it Name it
Give it to password Give it to password

If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?

1 Mark(s)

Your Answer:

long long
int int
double double
float float

In Microsoft Word, Ctrl+1 is used for which of the following?

1 Mark(s)

Your Answer:

To set 1.5 line spacing To set 1.5 line spacing
To set 0.5 line spacing To set 0.5 line spacing
Double line spacing Double line spacing
Single line spacing Single line spacing

What will happen in this case? p strong {background-color: yellow;}

1 Mark(s)

Your Answer:

Strong have yellow background Strong have yellow background
Strong element within a p element have a yellow background
Both p and strong have yellow background
None of the mentioned None of the mentioned

We have defined one page_load event in aspx page and same page_load event in code behind who will run first ?

1 Mark(s)

Your Answer:

page_laod event in aspx page page_laod event in aspx page
page_load event in code-behind page_load event in code-behind
both will run simultaneously both will run simultaneously
None of these None of these

Cotton is totally crystalline with disorder between fibrils coming from:

1 Mark(s)

Your Answer:

imperfect register imperfect register
perfect register perfect register
same matrix same matrix
different matrix different matrix

An idealized mathematical model of a pendulum is:

1 Mark(s)

Your Answer:

Gravity pendulum Gravity pendulum
Tension pendulum Tension pendulum
Torison pendulum Torison pendulum
Spring pendulum Spring pendulum

A synonym is two or more attributes that have different names but the same meaning.

1 Mark(s)

Your Answer:

True True
False False

Software system which is designed to search for information on the World Wide Web, is known as:

1 Mark(s)

Your Answer:

web site web site
search engine search engine
social network social network
search page search page

Which one of the following variable cannot be used inside a static method?

1 Mark(s)

Your Answer:

$this $this
$get $get
$set $set
$date $date

Most data transmitted over telephone lines uses:

1 Mark(s)

Your Answer:

serial transmission serial transmission
parallel transmission parallel transmission
one way transmission one way transmission
two way transmission two way transmission

Which of the following is a black box testing strategy ?

1 Mark(s)

Your Answer:

All Statements Coverage All Statements Coverage
Control Structure Coverage Control Structure Coverage
Cause-Effect Graphs Cause-Effect Graphs
All Paths Coverage All Paths Coverage

Communication medium which requires line-of-sight is:

1 Mark(s)

Your Answer:

microwave microwave
fiber optic cable fiber optic cable
twisted pair cable twisted pair cable
coaxial cable coaxial cable

Evaluating Your Answers

Kotlin Mock Test 1 : Question 1 of 50