Algorithms Mock Test 11 - Online MCQ Exam

Output?int a=5, b=2; cout << a%b;

1 Mark(s)

Your Answer:

1 1
2 2
0 0
3 3

What is the purpose of the 'strlen()' function in C++?

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Your Answer:

Concatenates two strings Concatenates two strings
Compares two strings Compares two strings
Returns the length of a null-terminated string
Copies a string to another string Copies a string to another string

Do ternary heap have better memory cache behavior than binary heap.

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Your Answer:

True True
False False

What is the purpose of the Enumerator class in Ruby?

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Your Answer:

It provides a way to enumerate over the elements of an array
It allows you to create custom iterators for any enumerable object
It allows you to define custom iteration behavior for any enumerable object
None of the above None of the above

"Ctrl + B" shortcut is used by user to:

1 Mark(s)

Your Answer:

selected text to be blow selected text to be blow
selected text border selected text border
selected text to be bold selected text to be bold
selected text to be broad selected text to be broad

Which of the following selectors selects any tag with an id attribute set?

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Your Answer:

E#id E#id
.class .class
#id #id
* *

What is extension of MS PowerPoint presentation of file in 2007 and later?

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Your Answer:

.pp .pp
.xls .xls
.pptx .pptx
None of these None of these

What is the syntax for calling a virtual function from a derived class constructor in C++?

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Your Answer:

virtual_function() virtual_function()
Base::virtual_function() Base::virtual_function()
this->virtual_function() this->virtual_function()
Derived::virtual_function() Derived::virtual_function()

What happens when the pH in the blood reduces?

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Your Answer:

Blood supply to the brain reduces Blood supply to the brain reduces
Affinity of hemoglobin with oxygen decreases
Rate of heartbeat reduces Rate of heartbeat reduces
None of the above None of the above

What will be the output of the following Java program? class output { public static void main(String args[]) { String s1 = "one"; String s2 = s1 + " two"; System.out.println(s2); } }

1 Mark(s)

Your Answer:

one one
two two
one two one two
compilation error compilation error

PHP files have a default file extension of_______.

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Your Answer:

.html .html
.xml .xml
.php .php
.ph .ph

Mosses and ferns are mostly found in damp and ________ environment:

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Your Answer:

high light high light
darkness darkness
low light low light
no light no light

An ordered factor is used to represent an . . . . . . . .

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Your Answer:

Ordinal variable Ordinal variable
Simple variable Simple variable
Coordinal variable Coordinal variable
Biordinal variable Biordinal variable

What is the administrative distance of OSPF?

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Your Answer:

90 90
100 100
110 110
120 120

What will be the output? class MyClass{ public String test(){ try{ System.out.print("One"); return ""; } finally{ System.out.print("Two"); } } } public class Test{ public static void main(String args[]){ MyClass m = new MyClass(); m.test(); } }

1 Mark(s)

Your Answer:

One One
Two Two
One Two One Two
Compilation Error Compilation Error
None of these None of these

In a network with dozens of switches, how many root bridges would you have?

1 Mark(s)

Your Answer:

1 1
2 2
5 5
12 12

To Zoom an Excel worksheet we can use _______?

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Your Answer:

The mouse pointer in Print Preview The mouse pointer in Print Preview
The zoom button on the Print Preview toolbar
The zoom command on the view menu The zoom command on the view menu
All of these All of these

Which is NOT one of the most common types of SQL CHECK constraints?

1 Mark(s)

Your Answer:

System date System date
Range checks Range checks
Lists of values Lists of values
Comparing one column value to another within the same table

Consider the brute force implementation of the rod cutting problem in which all the possible cuts are found and the maximum value is calculated. What is the time complexity of this brute force implementation?

1 Mark(s)

Your Answer:

O(n2) O(n2)
O(n3) O(n3)
O(nlogn) O(nlogn)
O(2n) O(2n)

What will be the output of the following C++ code? #include <iostream> #include <string> #include <cstdlib> using namespace std; int main(int argc, char const *argv[]) { int a = 5; int *p = &a; int *(&q) = p; cout<<q; return 0; }

1 Mark(s)

Your Answer:

5 5
Address of pointer a Address of pointer a
Address of pointer p Address of pointer p
Error Error

Name the method/methods used to read byte streams from the file?

1 Mark(s)

Your Answer:

ReadByte() ReadByte()
Read Read
Readkey() Readkey()
None of the mentioned None of the mentioned

In ∂/∂x (uvw), where u, v and w are constants, is equals to:

1 Mark(s)

Your Answer:

uv∂w⁄∂x+uw∂v⁄∂x+vw∂u⁄∂x
uw ∂u⁄∂x+vw ∂v⁄∂x uw ∂u⁄∂x+vw ∂v⁄∂x
uvw∂/∂x+∂u/∂x (uvw) uvw∂/∂x+∂u/∂x (uvw)
uvw∂/∂x uvw∂/∂x

What are the basic rectangular building blocks of a spreadsheet?

1 Mark(s)

Your Answer:

Cells Cells
Zoom slider Zoom slider
Help button Help button
None of these None of these

Which of the following commands connect access list 110 inbound to interface ethernet0?

1 Mark(s)

Your Answer:

Router(config)# ip access-group 110 in Router(config)# ip access-group 110 in
Router(config)# ip access-list 110 in Router(config)# ip access-list 110 in
Router(config-if)# ip access-group 110 in
Router(config-if)# ip access-list 110 in

Other material/s which is/are sensitive at ordinary temperature like hydrogen is/are:

1 Mark(s)

Your Answer:

cellulose cellulose
cellulose and nylon cellulose and nylon
nylon and cotton nylon and cotton
polyethylene polyethylene

An entity name should be which of the following?

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Your Answer:

A singular noun A singular noun
Specific to the organization Specific to the organization
Concise Concise
All of the above All of the above

Which of the following is not the class of NoSQL?

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Your Answer:

Document stores Document stores
Multidimension stores Multidimension stores
Key-value stores Key-value stores
Memcache Memcache

Which is one of way to query a document for an element or elements?

1 Mark(s)

Your Answer:

With a specified id attribute With a specified id attribute
Matching the specified CSS selector Matching the specified CSS selector
With the specified tag name With the specified tag name
All of the mentioned All of the mentioned

What is the range of values for an 'unsigned long int' data type in C++?

1 Mark(s)

Your Answer:

0 to 65535 0 to 65535
-32768 to 32767 -32768 to 32767
0 to 4294967295 0 to 4294967295
-2147483648 to 2147483647 -2147483648 to 2147483647

What will be the time complexity of query operation if all the candidates are evenly spaced so that each bin has constant no. of candidates? (k = number of bins query rectangle intersects)

1 Mark(s)

Your Answer:

O(1) O(1)
O(k) O(k)
O(k2) O(k2)
O(log k) O(log k)

What is the role of the TaskTracker in Hadoop?

1 Mark(s)

Your Answer:

Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs
Manages HDFS metadata Manages HDFS metadata
Manages ZooKeeper configurations Manages ZooKeeper configurations

What is the purpose of the pass statement in a loop?

1 Mark(s)

Your Answer:

It acts as a placeholder It acts as a placeholder
It breaks the loop It breaks the loop
It starts a loop It starts a loop
It continues the loop It continues the loop

How do you find the index of the last occurrence of a substring in a string in Java?

1 Mark(s)

Your Answer:

str.findLast(substring) str.findLast(substring)
str.lastIndexOf(substring) str.lastIndexOf(substring)
str.lastIndexOfChar(substring) str.lastIndexOfChar(substring)
str.indexOf(substring) str.indexOf(substring)

In a computer, correct column address is:

1 Mark(s)

Your Answer:

AA AA
25 25
3B 3B
C5 C5

Eccentricity of Saturn is:

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Your Answer:

0.0556 0.0556
0.0934 0.0934
0.0472 0.0472
0.0485 0.0485

RGB stands for:

1 Mark(s)

Your Answer:

Red, Green, Blue Red, Green, Blue
Red, Green, Black Red, Green, Black
Red, Gray, Black Red, Gray, Black
None None

Suppose there is a list such that: l=[2,3,4]. If we want to print this list in reverse order, which of the following methods should be used?

1 Mark(s)

Your Answer:

reverse(l) reverse(l)
list(reverse[(l)]) list(reverse[(l)])
reversed(l) reversed(l)
list(reversed(l)) list(reversed(l))

What is the output of the following code: my_tuple = (1, 2, 3) print(my_tuple[1])

1 Mark(s)

Your Answer:

1 1
2 2
3 3
Error Error

A well-known helper plug-in for HTML is?

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Your Answer:

J-Query J-Query
PHP PHP
JavaScript JavaScript
Java Applet Java Applet

When air holes of a Bunsen burner are closed they give:

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Your Answer:

luminous flame luminous flame
non luminous flame non luminous flame
aluminous flame aluminous flame
dull flame dull flame

Where is the R.java file located?

1 Mark(s)

Your Answer:

src src
gen gen
Both A and B Both A and B
None of these None of these

Which of the following is used for Statistical analysis in R language?

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Your Answer:

RStudio RStudio
Studio Studio
Heck Heck
KStudio KStudio

Which of the following bitwise operations will you use to set a particular bit to 1?

1 Mark(s)

Your Answer:

OR OR
AND AND
XOR XOR
NOR NOR

What is the range of short data type in Java?

1 Mark(s)

Your Answer:

-128 to 127 -128 to 127
-32768 to 32767 -32768 to 32767
-2147483648 to 2147483647 -2147483648 to 2147483647
None of the mentioned None of the mentioned

What will be the output of the following code fragment? void main() { printf("%x",-1

1 Mark(s)

Your Answer:

fff0 fff0
fff1 fff1
fff2 fff2
fff3 fff3
fff4 fff4

Which of the following properties is essential for the efficient implementation of Dijkstra's algorithm?

1 Mark(s)

Your Answer:

An adjacency matrix for fast access. An adjacency matrix for fast access.
A stack to keep track of visited nodes. A stack to keep track of visited nodes.
A hash table for node storage. A hash table for node storage.
A priority queue or min-heap to extract the minimum distance.

Which of the following is not a valid C++ standard library container?

1 Mark(s)

Your Answer:

queue queue
deque deque
ArrayList ArrayList
vector vector

What will be the output of the following C code? #include <stdio.h> struct student { char *c; struct student *point; }; void main() { struct student s; struct student *m = &s; printf("%d", sizeof(student)); }

1 Mark(s)

Your Answer:

Compile time error Compile time error
8 8
5 5
16 16

What makes Earth’s position in the solar system ideal for supporting life?

1 Mark(s)

Your Answer:

A) It is the closest planet to the Sun. A) It is the closest planet to the Sun.
B) It lies in the habitable zone, allowing liquid water.
C) It has the strongest magnetic field in the solar system.
D) It has no atmosphere. D) It has no atmosphere.

Which metrhods are utilized to control the access to an object in multi threaded programming ?

1 Mark(s)

Your Answer:

Synchronized methods Synchronized methods
Asynchronized methods Asynchronized methods
Serialized methods Serialized methods
None of above None of above

In R, what is the primary functionality of the caret package?

1 Mark(s)

Your Answer:

Machine learning model training and evaluation
Data cleaning and preprocessing Data cleaning and preprocessing
Bayesian data analysis Bayesian data analysis
Visualization of decision trees Visualization of decision trees

What is the purpose of the function Sys.Date() in R?

1 Mark(s)

Your Answer:

Display current date and time Display current date and time
Extract system information Extract system information
Retrieve the current date Retrieve the current date
Convert date to character Convert date to character

Which fields are contained within an IEEE Ethernet frame header? 1. Source and destination MAC address 2. Source and destination network address 3. Source and destination MAC address and source and destination network address 4. FCS field

1 Mark(s)

Your Answer:

1 and 4 1 and 4
2 only 2 only
2 and 3 only 2 and 3 only
3 only 3 only

The capacity of a 3.5-inch floppy disk was _____.?

1 Mark(s)

Your Answer:

1.40 GB 1.40 GB
1.44 GB 1.44 GB
1.40 MB 1.40 MB
1.44 MB Answer 1.44 MB Answer

Which of the following property is used to determine which drag operation was desired?

1 Mark(s)

Your Answer:

dragend dragend
getData getData
dropEffect dropEffect
captureData captureData

Oracle, the world's most popular DBMS, is powerful and robust, running on many different operating systems.

1 Mark(s)

Your Answer:

True True
False False

In the email campaign, __________ delivers the advertisements into the group of targeted customers.

1 Mark(s)

Your Answer:

Spoofing Spoofing
Indirect email marketing Indirect email marketing
Direct email marketing Direct email marketing
Spamming Spamming

A member function can always access the data in __________ , (in C++).

1 Mark(s)

Your Answer:

the object of which it is a member the object of which it is a member
the public part of its class the public part of its class
the private part of its class the private part of its class

Question: Which of the algorithms uses the Divide and Conquer approach?

1 Mark(s)

Your Answer:

Bubble Sort Bubble Sort
Linear Search Linear Search
Merge Sort Merge Sort
Insertion Sort Insertion Sort

The current date is returned by the method:

1 Mark(s)

Your Answer:

system.date system.date
current.date current.date
machine.date machine.date
today.date today.date

How many kinds of parameters are there in C++?

1 Mark(s)

Your Answer:

1 1
2 2
3 3
5 5

Material when given tension straightens out and return on releasing tension, it is called as:

1 Mark(s)

Your Answer:

random state random state
rubbery state rubbery state
predictable state predictable state
unpredictable state unpredictable state

In order to lock/unlock an object use the:

1 Mark(s)

Your Answer:

lock and unlock methods lock and unlock methods
enter and exit methods enter and exit methods
close and open methods close and open methods
close and allow methods close and allow methods

In Oozie, what is the role of the Oozie Workflow XML file?

1 Mark(s)

Your Answer:

A storage format in Hadoop A storage format in Hadoop
A query language for Hadoop A query language for Hadoop
A distributed file system A distributed file system
Define the structure and execution flow of a workflow

What is the time complexity of exponential search for a large dataset?

1 Mark(s)

Your Answer:

O(log n) O(log n)
O(√n) O(√n)
O(n) O(n)
O(n log n) O(n log n)

Vector product of two vectors A and B is written as:

1 Mark(s)

Your Answer:

AB AB
A.B A.B
AxB AxB
AoB AoB

Which of the following are input devices?

1 Mark(s)

Your Answer:

Keyboard Keyboard
Mouse Mouse
Card reader Card reader
All of these All of these

Why this pointer is used?

1 Mark(s)

Your Answer:

To access the members of a class which have the same name as local variables in that scope
To access all the data stored under that class
To access objects of other class To access objects of other class
To access objects of other variables To access objects of other variables

Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?

1 Mark(s)

Your Answer:

Banyan switch Banyan switch
Crossbar switch Crossbar switch
Multistage crossbar Multistage crossbar
Packet switch Packet switch

When a process is copied into the main memory from the secondary memory, what is this operation called?

1 Mark(s)

Your Answer:

Swapping Swapping
Paging Paging
Segmentation Segmentation
Demand paging Demand paging

The default method while submitting a form is:

1 Mark(s)

Your Answer:

Put method Put method
Post method Post method
Set method Set method
Get method Get method

Which type of binary tree is specifically designed to store key-value pairs and supports efficient search, insertion, and deletion operations?

1 Mark(s)

Your Answer:

AVL Tree AVL Tree
Red-Black Tree Red-Black Tree
B-Tree B-Tree
Splay Tree Splay Tree

In a queue, what operation is used to view the element at the front without removing it?

1 Mark(s)

Your Answer:

Peek Peek
Dequeue Dequeue
Enqueue Enqueue
Insert Insert

Physical constant that is the quantum of action, central in quantum mechanics, is called:

1 Mark(s)

Your Answer:

permittivity Constant permittivity Constant
Permeability Constant Permeability Constant
Planck Constant Planck Constant
Stefan-Boltzmann Constant Stefan-Boltzmann Constant

Methods that have same name, but different Parameter list and different definition known as_________________?

1 Mark(s)

Your Answer:

Overriding Overriding
Overloading Overloading
Constructor Constructor
none of these none of these

Which apps are included in Office Suite?

1 Mark(s)

Your Answer:

Word Word
Excel Excel
PowerPoint PowerPoint
All of the Above Answer All of the Above Answer

The CGI.pm module for website development is a part of . . . . . . . .

1 Mark(s)

Your Answer:

Perl Perl
Java Java
Python Python
C++ C++

Evaluating Your Answers

Algorithms Mock Test 11 : Question 1 of 77