Ruby Mock Test 10 - Online MCQ Exam

The main job of a CPU is to_____________________________?

1 Mark(s)

Your Answer:

carry out program instructions carry out program instructions
store data / information for future use store data / information for future use
process data and information process data and information
both (A) and (B) both (A) and (B)

What is the correct way to define a conditional statement in Ruby?

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Your Answer:

if (condition) { code } if (condition) { code }
if condition then code end if condition then code end
if condition: code if condition: code
when condition; code when condition; code

Which flag is used to compile client programs that use MySQL header files?

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Your Answer:

-O -O
-I -I
-U -U
-A -A

Bootstrap does not use . . . . . . . .

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Your Answer:

HTML HTML
jQuery jQuery
PHP PHP
CSS CSS

A method is:

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Your Answer:

A named sequence of statement A named sequence of statement
A decision statement A decision statement
An iteration structure An iteration structure
It is member of a class not of an object

What is the purpose of the `quote()` method in Java regular expressions?

1 Mark(s)

Your Answer:

It returns a literal pattern string for the specified string
It quotes a matched subsequence It quotes a matched subsequence
It compiles a regular expression It compiles a regular expression
It checks if a string matches the pattern

Which of the following is an example of a problem where Dynamic Programming is particularly useful?

1 Mark(s)

Your Answer:

Merge Sort Merge Sort
Heap Sort Heap Sort
Binary Search Binary Search
Longest Increasing Subsequence Longest Increasing Subsequence

What is the purpose of Apache Ambari in the Hadoop ecosystem?

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Your Answer:

Data processing Data processing
Data integration Data integration
Cluster management and monitoring Cluster management and monitoring
Scripting in Hadoop Scripting in Hadoop

Which of the following moves an element from its current position?

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Your Answer:

rotate() rotate()
translate() translate()
scale() scale()
matrix() matrix()

Thermal conductivity of Aluminium is equals to:

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Your Answer:

235 k(W/m.K) 235 k(W/m.K)
401 k(W/m.K) 401 k(W/m.K)
428 k(W/m.K) 428 k(W/m.K)
0.026 k(W/m.K) 0.026 k(W/m.K)

What is true about an XML layout file?

1 Mark(s)

Your Answer:

Used to draw Activity content Used to draw Activity content
A layout PNG image file A layout PNG image file
Both A & B Both A & B
Contains application permissions Contains application permissions

Which of the following is/are a PHP code editor? 1. Notepad 2. Notepad++ 3. Adobe Dreamweaver 4. PDT

1 Mark(s)

Your Answer:

Only 4 Only 4
All of the mentioned All of the mentioned
1, 2 and 3 1, 2 and 3
Only 3 Only 3

Storage device found inside the computer__________________?

1 Mark(s)

Your Answer:

CD ROM CD ROM
Zip disk Zip disk
Super disk Super disk
Hard disk Hard disk

What is the output of the given code? variable = false if variable print "false" elsif !variable print "true" end

1 Mark(s)

Your Answer:

False False
True True
Syntax error Syntax error
None of the mentioned None of the mentioned

Which concept in OOP allows objects to exhibit multiple behaviors based on their types or class?

1 Mark(s)

Your Answer:

Abstraction Abstraction
Inheritance Inheritance
Encapsulation Encapsulation
Polymorphism Polymorphism

How can you handle dynamic content loaded by JavaScript in web scraping?

1 Mark(s)

Your Answer:

By using the requests library By using the requests library
By manually entering the data By manually entering the data
By using a headless browser By using a headless browser
By disabling JavaScript in the browser By disabling JavaScript in the browser

The searching phase in quick search algorithm has good practical behaviour.

1 Mark(s)

Your Answer:

true true
false false

$(this) in jQuery is used when -

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Your Answer:

an HTML element references the entire document
an HTML element references its own action
an HTML element references the action of its parent element
All of the above All of the above

In the Go-Back-N Protocol, the sequence numbers are modulo:

1 Mark(s)

Your Answer:

2m 2m
2m+1 2m+1
2n 2n
2n+1 2n+1

_____ computers are also called personal computers.

1 Mark(s)

Your Answer:

Super Computers Super Computers
Mini Computers Mini Computers
Micro Computers Micro Computers
Mainframe Computers Mainframe Computers

The other columns are inactive when you’ve select three columns. How will you activate those boxes?

1 Mark(s)

Your Answer:

Double Click on Spacing Box Double Click on Spacing Box
Remove Mark from Equal Column width Check Box
Double Click on Inactive Column Double Click on Inactive Column
Remove Mark from Line between Check Box Answer

In Ruby, what is the difference between a proc and a lambda?

1 Mark(s)

Your Answer:

Procs perform strict argument checking, while lambdas do not
Lambdas can accept a variable number of arguments, while procs cannot
Lambdas perform strict argument checking, while procs do not
Procs can accept a variable number of arguments, while lambdas cannot

For what purposes are views used?

1 Mark(s)

Your Answer:

To hide columns only To hide columns only
To hide rows only To hide rows only
To hide complicated SQL statements only To hide complicated SQL statements only
All of the above are uses for SQL views.

What will be the output of the following C# code? int i, j = 1, k; for (i = 0; i < 3; i++) { k = j++ - ++j; Console.Write(k + " "); }

1 Mark(s)

Your Answer:

-4 -3 -2 -4 -3 -2
-6 -4 -1 -6 -4 -1
-2 -2 -2 -2 -2 -2
-4 -4 -4 -4 -4 -4

Which of the following is not example of block element?

1 Mark(s)

Your Answer:

<h1> <h1>
<ul> <ul>
<p> <p>
<a> <a>

If we press the F8 key thrice in MS Word, We will?

1 Mark(s)

Your Answer:

Automatically align the text Automatically align the text
select a paragraph select a paragraph
Select a sentence Select a sentence
None of these None of these

What is the result of the following code snippet? try { int result = 10 / 0; } catch (ArithmeticException e) { System.out.println("Arithmetic Exception!"); } finally { System.out.println("Finally Block!"); }

1 Mark(s)

Your Answer:

No output No output
Finally Block! Finally Block!
Arithmetic Exception! Arithmetic Exception!
Arithmetic Exception! Finally Block! Arithmetic Exception! Finally Block!

What will be the output of the following C++ code? #include <iostream> #include <string> #include <cstring> using namespace std; int main(int argc, char const *argv[]) { string s("a"); cout<<s; return 0; }

1 Mark(s)

Your Answer:

a a
empty string empty string
Error Error
Segmentation fault Segmentation fault

What is the property to access the first child of a node?

1 Mark(s)

Your Answer:

timestamp.Child1 timestamp.Child1
timestamp.Child(1) timestamp.Child(1)
timestamp.Child(0) timestamp.Child(0)
timestamp.firstChild timestamp.firstChild

Which of the following technique stores data separately in case of a collision?

1 Mark(s)

Your Answer:

Open addressing Open addressing
Double hashing Double hashing
Quadratic probing Quadratic probing
Chaining using a binary tree Chaining using a binary tree

What will be the output of the following C# code? static void Main(string[] args) { int i = 0; int j = 0; for (i = 0; i < 4; i++) { for (j = 0; j < 3; j++) { if (i > 1) continue; Console.WriteLine("Hi \n"); } } Console.ReadLine(); }

1 Mark(s)

Your Answer:

Prints hi 4 times Prints hi 4 times
Prints hi 3 times Prints hi 3 times
Prints hi 6 times Prints hi 6 times
Prints hi infinite times Prints hi infinite times

In Multilevel Frequency Shift Keying (MFSK), to send 3 bits at a time we can use:

1 Mark(s)

Your Answer:

2 frequencies 2 frequencies
4 frequencies 4 frequencies
8 frequencies 8 frequencies
10 frequencies 10 frequencies

In-Network Management System, maps track each piece of hardware and its connection to the:

1 Mark(s)

Your Answer:

IP Server IP Server
domain domain
network network
data data

Which is not included in a Font Style in MS-Word?

1 Mark(s)

Your Answer:

Bold Bold
Italic Italic
Regular Regular
Superscript Superscript

What is the assignment operator in Python?

1 Mark(s)

Your Answer:

== ==
= =
:= :=
>< ><

A second technique to reduce the routing table and simplify the searching process is called:

1 Mark(s)

Your Answer:

Network-Specific Method Network-Specific Method
Network-Specific Movement Network-Specific Movement
Network-Specific Maintenance Network-Specific Maintenance
Network-Specific Membership Network-Specific Membership

What does pressure help to explain?

1 Mark(s)

Your Answer:

A) Taste of food A) Taste of food
B) Movement of planets B) Movement of planets
C) Air movement and weather events C) Air movement and weather events
D) Growth of plants D) Growth of plants

Which among the following feature does not come under the concept of OOPS?

1 Mark(s)

Your Answer:

Data binding Data binding
Data hiding Data hiding
Platform independent Platform independent
Message passing Message passing

How do you open the Header and Footer toolbar in MS Word?

1 Mark(s)

Your Answer:

On the Insert tab, click Header and Footer
Right-click any toolbar and click Header and Footer
On the View tab, click Toolbars and select Header and Footer from the list of toolbars
None of these None of these

The following SQL is which type of join: SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID FROM CUSTOMER_T,ORDER_T WHERE CUSTOMER_T. CUSTOMER_ID = ORDER_T. CUSTOMER_ID

1 Mark(s)

Your Answer:

Equi-join Equi-join
Natural join Natural join
Outer join Outer join
Cartesian join Cartesian join

Which keyword is used to specify that a function will not throw any exceptions in C++?

1 Mark(s)

Your Answer:

nothrow nothrow
noexcept noexcept
exception exception
noexception noexception

A substance that is broken down into simpler substance by the means of chemical, not physical, is known as:

1 Mark(s)

Your Answer:

atom atom
compound compound
molecule molecule
solution solution

Enterprise Resource Planning (ERP) is an example of a single user database.

1 Mark(s)

Your Answer:

True True
False False

Which of the following operators is used for exponentiation in R?

1 Mark(s)

Your Answer:

** **
^ ^
// //
%^% %^%

Which of the following is added to link or header element?

1 Mark(s)

Your Answer:

.navbar-default .navbar-default
.navbar .navbar
.navbar-btn .navbar-btn
.navbar-brand .navbar-brand

A Red wavy line in MS Word indicates that _____?

1 Mark(s)

Your Answer:

Misspelled word/Spelling Error Misspelled word/Spelling Error
Character mistakes Character mistakes
Grammatical mistakes Grammatical mistakes
Spacing mistakes Spacing mistakes

∂y/∂x=:

1 Mark(s)

Your Answer:

0 0
1 1
∂y⁄∂u⁄∂x⁄∂u ∂y⁄∂u⁄∂x⁄∂u
∂x/∂u/∂y/∂u ∂x/∂u/∂y/∂u

What is the recommended way to handle sensitive information, such as API keys, in Ruby projects?

1 Mark(s)

Your Answer:

Store them in environment variables Store them in environment variables
Embed them directly in the code Embed them directly in the code
Include them in a separate configuration file
Store them in the source code as comments

Which statement about the 'finally' block in C++ exception handling is true?

1 Mark(s)

Your Answer:

It must always be followed by a 'catch' block
It must always be followed by a 'try' block
It is executed regardless of whether an exception is thrown or not
It is optional and can be omitted It is optional and can be omitted

Which of the following keywords is used by the calling function to guard against the exception that is thrown by called function?

1 Mark(s)

Your Answer:

try try
throw throw
throws throws
catch catch

Which of the following can be operands of arithmetic operators?

1 Mark(s)

Your Answer:

Numeric Numeric
Boolean Boolean
Characters Characters
Both Numeric & Characters Both Numeric & Characters

SQL has clearly established itself as the standard relational:

1 Mark(s)

Your Answer:

Database process Database process
Database language Database language
Database storage Database storage
Database manager Database manager

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

1 Mark(s)

Your Answer:

[A, B, C, D] [A, B, C, D]
[A, D, B, C] [A, D, B, C]
[A, D, C] [A, D, C]
[A, B, C] [A, B, C]

Variable name resolution (number of significant characters for the uniqueness of variable) depends on . . . . . . . .

1 Mark(s)

Your Answer:

Compiler and linker implementations Compiler and linker implementations
Assemblers and loaders implementations Assemblers and loaders implementations
C language C language
None of the mentioned None of the mentioned

Who is father of C Language?

1 Mark(s)

Your Answer:

Bjarne Stroustrup Bjarne Stroustrup
James A. Gosling James A. Gosling
Dennis Ritchie Dennis Ritchie
Dr. E.F. Codd Dr. E.F. Codd

How can a protected modifier be accessed?

1 Mark(s)

Your Answer:

accessible only within the class accessible only within the class
accessible only within package accessible only within package
accessible within package and outside the package but through inheritance only
accessible by all accessible by all

To run a program this Setup involves an amount of:

1 Mark(s)

Your Answer:

Money Money
Resources Resources
Users Users
Time Time

What is the primary function of the Pig Latin LOAD statement?

1 Mark(s)

Your Answer:

Load data into a relation Load data into a relation
Perform data analytics in Hadoop Perform data analytics in Hadoop
Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs

What does Class.forName("myreflection.Foo").getInstance() return?

1 Mark(s)

Your Answer:

An array of Foo objects An array of Foo objects
class object of Foo class object of Foo
Calls the getInstance() method of Foo class
Foo object Foo object

Which of the following is the operation executed on data stored in registers?

1 Mark(s)

Your Answer:

Byte operation Byte operation
Bit operation Bit operation
Macrooperation Macrooperation
Microoperation Microoperation

Which of the command is a more drastic option:

1 Mark(s)

Your Answer:

Drop command Drop command
Eliminate command Eliminate command
Abort command Abort command
Delete command Delete command

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Ruby Mock Test 10 : Question 1 of 61