Ruby Mock Test 4 - Online MCQ Exam

In JDBC, what is the purpose of the `java.sql.SQLException` class?

1 Mark(s)

Your Answer:

To handle database-related exceptions To handle database-related exceptions
To manage JavaBean properties To manage JavaBean properties
To execute SQL queries To execute SQL queries
To create JavaBeans To create JavaBeans

In which data structure would you implement a social network where users are nodes and connections are edges?

1 Mark(s)

Your Answer:

Graph Graph
Hash Table Hash Table
Array Array
Stack Stack

Left, Centred, Right and Justified in MS Word are all?

1 Mark(s)

Your Answer:

Paragraph styles Paragraph styles
Font styles Font styles
Paragraph alignments Paragraph alignments
None of the above None of the above

What will be the output of the following C# code? string s1 = " I AM BEST "; string s2; s2 = s1.substring (5, 4); Console.WriteLine (s2);

1 Mark(s)

Your Answer:

AM BEST AM BEST
I AM BES I AM BES
BEST BEST
I AM I AM

Which can be used for quick access to commonly used commands and tools?

1 Mark(s)

Your Answer:

Status bar Status bar
Tool bar Tool bar
Menu bar Menu bar
Title bar Title bar

A force can change the object's:

1 Mark(s)

Your Answer:

speed speed
volume volume
size size
control control

How do you bind an event to a widget in Tkinter?

1 Mark(s)

Your Answer:

bind(event, function) bind(event, function)
event.bind(widget, function) event.bind(widget, function)
widget.bind(event, function) widget.bind(event, function)
widget(event, function) widget(event, function)

What is the other name of run-time polymorphism?

1 Mark(s)

Your Answer:

Static polymorphism Static polymorphism
Dynamic polymorphism Dynamic polymorphism
Executing polymorphism Executing polymorphism
Non-executing polymorphism Non-executing polymorphism

What is the purpose of the MapReduce "Partitioner"?

1 Mark(s)

Your Answer:

Distribute data across multiple nodes Distribute data across multiple nodes
Aggregate values on the reducer side Aggregate values on the reducer side
Sort and shuffle data Sort and shuffle data
Determine the reducer for each key Determine the reducer for each key

When a fluid is in motion, it must move in such a way that mass is:

1 Mark(s)

Your Answer:

not conserved not conserved
conserved conserved
randomly distributed randomly distributed
equally distributed equally distributed

Period of revolution of Venus is:

1 Mark(s)

Your Answer:

11.9 y 11.9 y
0.615 y 0.615 y
1.88 y 1.88 y
1.00 y 1.00 y

What is the purpose of using friend functions in C++?

1 Mark(s)

Your Answer:

To create multiple instances of a class To create multiple instances of a class
To hide the implementation details of a class
To allow access to private and protected members of a class from outside the class
To define functions within a class To define functions within a class

What will be the output of the following C++ code? #include <stdio.h> int main() { char a = '\012'; printf("%d", a); return 0; }

1 Mark(s)

Your Answer:

Compiler error Compiler error
12 12
10 10
Empty Empty

Select from among the following character escape code which is not available in Java.

1 Mark(s)

Your Answer:

\t \t
\r \r
\a \a
\\ \\
\v \v

Which of the following tag defines the progress of a task?

1 Mark(s)

Your Answer:

<meter> <meter>
<progress> <progress>
<gauge> <gauge>
<wbr> <wbr>

Which the following term does not pertain to Excel?

1 Mark(s)

Your Answer:

Browser Browser
Columns Columns
Work Book Work Book
None of these None of these

Command which is used to backup in DOS 6+ version is:

1 Mark(s)

Your Answer:

BACKUP BACKUP
MSBACKUP MSBACKUP
MSBACKEDUP MSBACKEDUP
MSBACK MSBACK

Derivative of e-x is:

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Your Answer:

ex ex
e-x e-x
−ex −ex
−e-x −e-x

In MS Excel, the $ symbol in a formula denotes ______?

1 Mark(s)

Your Answer:

Named Range Named Range
Currency Format Currency Format
Absolute Cell Reference Absolute Cell Reference
None of these None of these

The chain of the cellulose can be extended:

1 Mark(s)

Your Answer:

in length in length
in width in width
to a limit to a limit
to 1 meter to 1 meter

Boolean algebra $A \cdot \bar{A}$ equals:

1 Mark(s)

Your Answer:

0 0
1 1
A A
$\bar{A}$ $\bar{A}$

Which data structure is commonly used for efficient processing of event-driven simulations?

1 Mark(s)

Your Answer:

Array Array
Stack Stack
Priority Queue Priority Queue
Queue Queue

The term _________ refers to transporting a mobile station from one base station to another base station.

1 Mark(s)

Your Answer:

Roamer Roamer
Forward channel Forward channel
Handoff or hand over Handoff or hand over
MIN MIN

Which traversal method of a BST is used for evaluating arithmetic expressions stored in the tree?

1 Mark(s)

Your Answer:

Postorder Postorder
Inorder Inorder
Preorder Preorder
Level-order Level-order

When a bank uses information to launch a personalised credit card product this_____________?

1 Mark(s)

Your Answer:

manages risks manages risks
creates a new opportunity creates a new opportunity
adds value adds value
reduces costs reduces costs

If the value of sub field type is 1100 in control frames, then it contains the information of:

1 Mark(s)

Your Answer:

request to send request to send
clear to send clear to send
acknowledgement acknowledgement
sender sender

What lines up the terms and descriptions in <dl> element side by side?

1 Mark(s)

Your Answer:

.list-inline .list-inline
.dl-horizontal .dl-horizontal
.list-unstyled .list-unstyled
.initialism .initialism

As companies move past the experimental phase with Hadoop, many cite the need for additional capabilities, including . . . . . . . .

1 Mark(s)

Your Answer:

Improved data storage and information retrieval
Improved extract, transform and load features for data integration
Improved data warehousing functionality Improved data warehousing functionality
Improved security, workload management, and SQL support

What will be the output of the following Python code if a=10 and b =20? a=10 b=20 a=a^b b=a^b a=a^b print(a,b)

1 Mark(s)

Your Answer:

10 20 10 20
10 10 10 10
20 10 20 10
20 20 20 20

Which is not the right approach of Incremental testing approach?

1 Mark(s)

Your Answer:

Big bang approach Big bang approach
Top-down approach Top-down approach
Functional incrimination Functional incrimination
Bottom-up approach Bottom-up approach

Mirror whose shape is similar to the piece cut out of a spherical surface is called:

1 Mark(s)

Your Answer:

cupped mirror cupped mirror
virtual mirror virtual mirror
spherical mirror spherical mirror
epsilon mirror epsilon mirror

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Ruby Mock Test 4 : Question 1 of 31