Data Structures Mock Test 5

What is the primary purpose of a constructor in object-oriented programming?

1 Mark(s)

Your Answer:

To initialize the attributes of an object when it is created
To define a method To define a method
To destroy an object To destroy an object
To define a class To define a class

What is the maximum size of an IP packet for IPv4 or IPv6?

1 Mark(s)

Your Answer:

65540 65540
65535 65535
65577 65577
67544 67544

Virtual Memory is:

1 Mark(s)

Your Answer:

Illusion of large memory Illusion of large memory
Physical memory Physical memory
Cache memory Cache memory
Graphics memory Graphics memory

In Ruby, what does the 'if' statement evaluate?

1 Mark(s)

Your Answer:

Expression Expression
Boolean value Boolean value
Integer Integer
String String

What keyword is used to declare a constant in Java, which is implicitly final and static?

1 Mark(s)

Your Answer:

final final
const const
static static
constant constant

What is the primary function of the Hadoop MapReduce "Map-side Aggregation" technique?

1 Mark(s)

Your Answer:

Aggregate values on the mapper side Aggregate values on the mapper side
Combine intermediate key-value pairs on the mapper side
Sort and shuffle data Sort and shuffle data
Distribute data to reducers Distribute data to reducers

Question: Which among the following problems can be solved efficiently using the Divide and Conquer approach?

1 Mark(s)

Your Answer:

Linear Programming Linear Programming
Sorting a linked list Sorting a linked list
Polynomial Multiplication Polynomial Multiplication
Hashing Hashing

In Global Service for Mobile (GSM), each band is divided into 124 channels of:

1 Mark(s)

Your Answer:

200 kHz 200 kHz
150 kHz 150 kHz
300 kHz 300 kHz
250 kHz 250 kHz

The statement correct about structures is:

1 Mark(s)

Your Answer:

A struct never declares a default constructor.
All value types in C# inherently derive from ValueType, which inherits from Object
A struct never declares a default destructor.
In C#, classes and structs are semantically same.

Annotations which are applied to other annotations are called meta annotations.

1 Mark(s)

Your Answer:

True True
False False

What is the non handle array representing a row of values?

1 Mark(s)

Your Answer:

$rc $rc
$rv $rv
$rows $rows
$ary $ary

What will be the output of the following Python code? A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] B = [[3, 3, 3], [4, 4, 4], [5, 5, 5]] zip(A, B)

1 Mark(s)

Your Answer:

Address of the zip object Address of the zip object
Address of the matrices A and B Address of the matrices A and B
No output No output
[3, 6, 9, 16, 20, 24, 35, 40, 45] [3, 6, 9, 16, 20, 24, 35, 40, 45]

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

1 Mark(s)

Your Answer:

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

Which gate is known as the Universal Gate?

1 Mark(s)

Your Answer:

NAND NAND
XOR XOR
AND AND
OR OR

What protocol is used to find the hardware address of a local device?

1 Mark(s)

Your Answer:

RARP RARP
ARP ARP
IP IP
ICMP ICMP

What will be the output of the following PHP code ? <?php $hello = "Hello World"; $bye = "Bye"; echo $hello;"$bye"; ?>

1 Mark(s)

Your Answer:

Hello World Hello World
Bye Bye
Hello worldBye Hello worldBye
Error Error

You are required to give brief of your role duties, which of the following would you use?

1 Mark(s)

Your Answer:

PowerPoint PowerPoint
Excel Excel
Word Word
Notepad Notepad

What does all media type is used for?

1 Mark(s)

Your Answer:

For use with all devices For use with all devices
For use with speech synthesizers For use with speech synthesizers
For use with handheld devices For use with handheld devices
For use with tactile Braille devices For use with tactile Braille devices

Note book, laptop,palm,hand-held computers are coming under the category of__________computer?

1 Mark(s)

Your Answer:

Digital computer Digital computer
Mainframe computer Mainframe computer
Portable computer Portable computer
Hybrid computer Hybrid computer

How can you prevent data skew in a Hadoop job with uneven key distribution?

1 Mark(s)

Your Answer:

Increase the number of reducers Increase the number of reducers
Decrease the number of reducers Decrease the number of reducers
Use a custom partitioner Use a custom partitioner
Use a combiner function Use a combiner function

Which element is considered the largest source of world's commercial energy consumption?

1 Mark(s)

Your Answer:

Coal Coal
Oil Oil
Natural gas Natural gas
Nuclear Nuclear

What will be the output of the following C# code conversion? static void Main(string[] args) { char a = 'A'; string b = "a"; Console.WriteLine(Convert.ToInt32(a)); Console.WriteLine(Convert.ToInt32(Convert.ToChar(b))); Console.ReadLine(); }

1 Mark(s)

Your Answer:

1, 97 1, 97
97, 65 97, 65
65, 97 65, 97
97, 1 97, 1

Internet uses which type of switching?

1 Mark(s)

Your Answer:

Circuit switching Circuit switching
Telephone switching Telephone switching
Packet switching Packet switching
Telex switching Answer Telex switching Answer

Which shortcut key is used to insert a text in a cell?

1 Mark(s)

Your Answer:

Enter Enter
F2 F2
F5 F5
Tab Tab

What is the time complexity of delete function in the hash table using a doubly linked list?

1 Mark(s)

Your Answer:

O(1) O(1)
O(n) O(n)
O(log n) O(log n)
O(n log n) O(n log n)

What is the time complexity of inserting an element at the end of an array?

1 Mark(s)

Your Answer:

O(1) O(1)
O(n) O(n)
O(log n) O(log n)
O(n log n) O(n log n)

Which method is used to find the number of days between two Date objects in Ruby?

1 Mark(s)

Your Answer:

days_until days_until
days_difference days_difference
subtract_date subtract_date
difference_in_days difference_in_days

In the Boyer-Moore algorithm, what is the purpose of the bad character rule?

1 Mark(s)

Your Answer:

To preprocess the text. To preprocess the text.
To sort characters of the pattern. To sort characters of the pattern.
To check for hash collisions. To check for hash collisions.
To skip portions of the text that cannot match.

Which of the following planet has 62 moons?

1 Mark(s)

Your Answer:

Saturn Saturn
Neptune Neptune
Pluto Pluto
Mars Mars

What will happen after compiling and running following code? class A implements Runnable{ public void run(){ System.out.println("run-a"); } } public class Test{ public static void main(String... args){ A a = new A(); Thread t = new Thread(a); t.start(); t.start(); } }

1 Mark(s)

Your Answer:

run-a run-a
run-a run-a run-a run-a
Compilation fails with an error at line 6
Compilation succeed but Runtime Exception
None of these None of these

The language that does not provide the full expressive power of a general-purpose language, is:

1 Mark(s)

Your Answer:

DB2 DB2
SQL SQL
Oracle Oracle
JAVA JAVA

Talc powder when mix in water it:

1 Mark(s)

Your Answer:

never dissolve never dissolve
dissolved dissolved
soluble soluble
mix mix

Which of these exception is thrown by close() and read() methods?

1 Mark(s)

Your Answer:

IOException IOException
FileException FileException
FileNotFoundException FileNotFoundException
FileInputOutputException FileInputOutputException

The ________ button toggles capital letter for inputs.

1 Mark(s)

Your Answer:

capslock capslock
alt alt
ctrl ctrl
none of these none of these

Computers that are favored by engineers and designers who need a high-performance system, are:

1 Mark(s)

Your Answer:

super computers super computers
play stations play stations
workstations workstations
tabulators tabulators

A data communications system has:

1 Mark(s)

Your Answer:

4 components 4 components
5 components 5 components
6 components 6 components
7 components 7 components

: Which of the following is the correct syntax to define a function for a class?

1 Mark(s)

Your Answer:

class T4Tutorials{public: void display(){cout<<“welcome”;}};
class T4Tutorials{public: void display();}; void T4Tutorials::display(){cout<<“welcome”;}
Both are correct Both are correct
Both are wrong Both are wrong

If the size of the stack is 10 and we try to add the 11th element in the stack then the condition is known as___

1 Mark(s)

Your Answer:

Underflow Underflow
Garbage collection Garbage collection
Overflow Overflow
None of the above None of the above

The first mechanical calculating machine was made by ________________________?

1 Mark(s)

Your Answer:

William Oughtred William Oughtred
Gottfried Leibnitz Gottfried Leibnitz
Blaise Pascal Blaise Pascal
Charles Babbage Charles Babbage

The method in which one channel carries all transmissions simultaneously is:

1 Mark(s)

Your Answer:

TDMA TDMA
CDMA CDMA
FDMA FDMA
CSMA CSMA

Tab, Caps Lock, Back Space and Enter keys are four specific functions of:

1 Mark(s)

Your Answer:

numeric keys numeric keys
alphanumeric keys alphanumeric keys
function keys function keys
modifier keys modifier keys

Generation of finer-granularity from coarse-granularity data is:

1 Mark(s)

Your Answer:

Possible Possible
Not possible Not possible
Simple Simple
Complex Complex

Any factor, trait, or condition that can exist in differing amounts or types is:

1 Mark(s)

Your Answer:

variable variable
function function
equation equation
math equation math equation

___________is the key we use to run the selected command?

1 Mark(s)

Your Answer:

SHIFT SHIFT
TAB TAB
ENTER ENTER
CTRL CTRL

A void pointer cannot point to which of these?

1 Mark(s)

Your Answer:

methods in c++ methods in c++
class member in c++ class member in c++
methods & class member in c++ methods & class member in c++
none of the mentioned none of the mentioned

Which key is used to select the whole document?

1 Mark(s)

Your Answer:

Ctrl + S Ctrl + S
Ctrl + C Ctrl + C
Ctrl + P Ctrl + P
Ctrl + A Ctrl + A

What is the purpose of a module in Python?

1 Mark(s)

Your Answer:

To define classes To define classes
To create graphical interfaces To create graphical interfaces
To organize functions, classes, and variables
To execute code line by line To execute code line by line

The quantity of actual material in a region that is not part of crystal lattice is:

1 Mark(s)

Your Answer:

large large
small small
negligible negligible
zero zero

How do you change the font of a widget's text in Tkinter?

1 Mark(s)

Your Answer:

font.set("NewFont") font.set("NewFont")
widget.font("NewFont") widget.font("NewFont")
widget.configure(font="NewFont") widget.configure(font="NewFont")
widget.set_font("NewFont") widget.set_font("NewFont")

Scanner with a resolution of 600 dots per inch can split image into:

1 Mark(s)

Your Answer:

600x600 areas 600x600 areas
600x100 areas 600x100 areas
600x1200 areas 600x1200 areas
600x300 areas 600x300 areas

What is the purpose of the count() method for lists?

1 Mark(s)

Your Answer:

Counts the occurrences of a specific element
Adds the elements of one list to another
Finds the index of a specific element Finds the index of a specific element
Reverses the list Reverses the list

Which of the following property determines how much variation in pitch or tone will be created by the speech synthesize when reading an element?

1 Mark(s)

Your Answer:

voice-pitch voice-pitch
voice-range voice-range
voice-stress voice-stress
none of the mentioned none of the mentioned

In a Binary Search Tree (BST), what happens when you perform an inorder traversal?

1 Mark(s)

Your Answer:

Nodes are visited in ascending order. Nodes are visited in ascending order.
Nodes are visited in descending order. Nodes are visited in descending order.
Nodes are visited in a random order. Nodes are visited in a random order.
Nodes are visited in the order they were inserted.

Perfect circular orbit has eccentricity of:

1 Mark(s)

Your Answer:

zero zero
one one
ten ten
undefined undefined

What is the purpose of the Take operator in LINQ?

1 Mark(s)

Your Answer:

Returns a specific element from a sequence
Returns the number of elements in a sequence
Returns the last element of a sequence Returns the last element of a sequence
Returns a specified number of contiguous elements from the start of a sequence

Green plants and grass are called:

1 Mark(s)

Your Answer:

producers producers
consumers consumers
decomposers decomposers
greenery greenery

In Pig, what is the purpose of the GROUP BY statement?

1 Mark(s)

Your Answer:

Sort data based on a specified key Sort data based on a specified key
Join data from multiple relations Join data from multiple relations
Load data into a relation Load data into a relation
Group data based on a specified key Group data based on a specified key

The programs of computer system can be executed through instructions by:

1 Mark(s)

Your Answer:

Input devices Input devices
Output devices Output devices
operating system operating system
CPU CPU

Copyright symbol can be included by . . . . . . . .

1 Mark(s)

Your Answer:

&lt &lt
&copy &copy
&amp &amp
&gt &gt

How can you quickly zoom in and out in Photoshop?

1 Mark(s)

Your Answer:

Ctrl + Z Ctrl + Z
Ctrl + +/- -. Ctrl + +/- -.
Ctrl + T Ctrl + T
Ctrl + X Ctrl + X

Which header file should be included for input and output functions in C?

1 Mark(s)

Your Answer:

<stdlib.h> <stdlib.h>
<stdio.h> <stdio.h>
<math.h> <math.h>
<string.h> <string.h>

Mechanical devices that make-up the computer are called:

1 Mark(s)

Your Answer:

software software
hardware hardware
netware netware
groupware groupware

: A process in which source code is translated into machine code is called…

1 Mark(s)

Your Answer:

Linking Linking
Executing Executing
Loading Loading
Compiling Compiling

Each 'ozone' molecule is made up of three:

1 Mark(s)

Your Answer:

oxygen atoms oxygen atoms
phosphors atoms phosphors atoms
carbon dioxide atoms carbon dioxide atoms
nitrogen atoms nitrogen atoms

SQL supports forms of user-defined data types, in the form of:

1 Mark(s)

Your Answer:

1 form 1 form
2 forms 2 forms
3 forms 3 forms
4 forms 4 forms

What does the study of an existing system refer to?

1 Mark(s)

Your Answer:

Details of DFD Details of DFD
Feasibility Study Feasibility Study
System Analysis System Analysis
System Planning System Planning

The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is

1 Mark(s)

Your Answer:

Instance object Instance object
Constructor object Constructor object
Destructor object Destructor object
Prototype object Prototype object

What is the purpose of the Hadoop Distributed Cache?

1 Mark(s)

Your Answer:

To cache frequently used HDFS data To cache frequently used HDFS data
To cache frequently used MapReduce code To cache frequently used MapReduce code
To cache frequently used input data To cache frequently used input data
To cache intermediate MapReduce results To cache intermediate MapReduce results

Compilers and interpreters are themselves:______________?

1 Mark(s)

Your Answer:

High-level language High-level language
Codes Codes
Programs Programs
Mnemonics Mnemonics

An equation containing derivatives of one or more unknown functions with respect to one or more independent variables is said to be a:

1 Mark(s)

Your Answer:

integral equation integral equation
differential equation differential equation
algebraic equation algebraic equation
logical equation logical equation

Which of the following selects every <a> element whose href attribute value contains the given substring?

1 Mark(s)

Your Answer:

attribute$=value attribute$=value
attribute*=value attribute*=value
attribute^=value attribute^=value
attribute|=value attribute|=value

What data structure is used for efficiently managing a set of tasks with dependencies?

1 Mark(s)

Your Answer:

Array Array
Directed Acyclic Graph (DAG) Directed Acyclic Graph (DAG)
Hash Table Hash Table
Array Array

In Hadoop . . . . . . . . go to the Hadoop distribution directory for HDInsight.

1 Mark(s)

Your Answer:

Shell Shell
Command Line Command Line
Compaction Compaction
None of the mentioned None of the mentioned

In C++, can a function call itself?

1 Mark(s)

Your Answer:

Yes Yes
No No
Compilation error Compilation error
Runtime error Runtime error

Which of the following is not the value for background-repeat property?

1 Mark(s)

Your Answer:

repeat-y repeat-y
repeat-x repeat-x
no-repeat no-repeat
fixed fixed

In NiFi, what is the role of the "PutDatabaseRecord" processor?

1 Mark(s)

Your Answer:

Join records from multiple tables Join records from multiple tables
Group records based on a condition Group records based on a condition
Sort records based on a column Sort records based on a column
Write records to a database Write records to a database

In CGI, process starts with each request and will initiate OS level process.

1 Mark(s)

Your Answer:

True True
False False

Evaluating Your Answers

Data Structures Mock Test 5 : Question 1 of 77