Algorithms Mock Test 12 - Online MCQ Exam

X = X * 3; will:

1 Mark(s)

Your Answer:

create new variable and set value create new variable and set value
change the value of X change the value of X
calculate power of x by 3 calculate power of x by 3
give an error give an error

Computer software designed for the use of sale to general public is called:

1 Mark(s)

Your Answer:

package software package software
application software application software
system software system software
customized software customized software

In the Longest Mask Matching (LMM), three entries are 127, 126, 124, the first entry should be:

1 Mark(s)

Your Answer:

124 124
126 126
127 127
127 and 124 127 and 124

Which of the following is not necessary for standalone computer? RAM , LAN Card ,Operating System , None of these

1 Mark(s)

Your Answer:

RAM RAM
LAN Card LAN Card
Operating System Operating System
None of these None of these

Which of the following will not return a value?

1 Mark(s)

Your Answer:

null null
void void
empty empty
free free

What is the result of the expression *ptr = 42 in C, where ptr is a pointer to an int?

1 Mark(s)

Your Answer:

Set the value pointed to by ptr to 42 Set the value pointed to by ptr to 42
Set the address pointed to by ptr to 42 Set the address pointed to by ptr to 42
Set the size of ptr to 42 Set the size of ptr to 42
Set ptr to a null value Set ptr to a null value

Which of the following is not included in the certification approach ?

1 Mark(s)

Your Answer:

Creation of usage scenarios Creation of usage scenarios
Specific usage file Specific usage file
Generation of test cases from the servers end.
Reliability Reliability

The ______ function in Excel returns the highest value in a set of data that you specify.

1 Mark(s)

Your Answer:

LRG LRG
AVG AVG
MAX MAX
None of these None of these

A very rare flower requiring a special condition of humidity and warmth for it to blossom, is called:

1 Mark(s)

Your Answer:

rafflesia rafflesia
violet violet
rose rose
daisy daisy

What will be the output of the following Java code? import java.util.*; public class genericstack <E> { Stack <E> stk = new Stack <E>(); public void push(E obj) { stk.push(obj); } public E pop() { E obj = stk.pop(); return obj; } } class Output { public static void main(String args[]) { genericstack <String> gs = new genericstack<String>(); gs.push("Hello"); System.out.println(gs.pop()); } }

1 Mark(s)

Your Answer:

H H
Hello Hello
Runtime Error Runtime Error
Compilation Error Compilation Error

The _______property is used to set the color of the text.

1 Mark(s)

Your Answer:

pallet pallet
colour colour
color color
text-decoration text-decoration

What is the default value of a double variable in Java if it's not explicitly initialized?

1 Mark(s)

Your Answer:

0 0
1 1
-1 -1
Null Null

Scope of variable is related to definition of variable as: i. Region of code within which variable value is valid and hence can be accessed. ii. No, relation with region where variable is declared its value is valid in entire scope.

1 Mark(s)

Your Answer:

i i
ii ii
i, ii i, ii
None of the mentioned None of the mentioned

Codes consisting of lines of varying widths or lengths that are computer-readable are known as__________?

1 Mark(s)

Your Answer:

an ASCII code an ASCII code
a magnetic tape a magnetic tape
an OCR scanner an OCR scanner
a bar code a bar code

What type of data structure is best for implementing binary search?

1 Mark(s)

Your Answer:

Linked List Linked List
Hash Table Hash Table
Tree Tree
Array Array

In C++, which type of inheritance involves inheriting from multiple base classes, but only inheriting one level deep from each base class?

1 Mark(s)

Your Answer:

Hierarchical inheritance Hierarchical inheritance
Multilevel inheritance Multilevel inheritance
Single inheritance Single inheritance
None of the above None of the above

What will be the output of the following Python code? >>> a={5,6,7,8} >>> b={7,5,6,8} >>> a==b

1 Mark(s)

Your Answer:

True True
False False

If a table has been normalized so that all determinants are candidate keys, then that table is in:

1 Mark(s)

Your Answer:

1NF. 1NF.
2NF. 2NF.
3NF. 3NF.
BCNF. BCNF.

What is the purpose of the before hook in RSpec?

1 Mark(s)

Your Answer:

Executes code after all examples Executes code after all examples
Executes code before all examples Executes code before all examples
Executes code after each example Executes code after each example
Executes code before each example Executes code before each example

Chloride ion has number of protons:

1 Mark(s)

Your Answer:

17 17
18 18
24 24
34 34

What is the result of the following code snippet? try { throw new ArithmeticException(); } catch (Exception e) { System.out.println("Exception!"); } catch (ArithmeticException e) { System.out.println("Arithmetic Exception!"); }

1 Mark(s)

Your Answer:

Arithmetic Exception! Arithmetic Exception!
Compilation error Compilation error
Runtime exception Runtime exception
ArithmeticException ArithmeticException

What is not the use of "this" keyword in Java?

1 Mark(s)

Your Answer:

Passing itself to another method Passing itself to another method
Calling another constructor in constructor chaining
Referring to the instance variable when local variable has the same name
Passing itself to method of the same class

Smallest font size in MS-word is____________?

1 Mark(s)

Your Answer:

6 6
8 8
10 10
12 12

Which is the first program run on a computer when the computer boots up?

1 Mark(s)

Your Answer:

System software System software
Operating system Operating system
System operations System operations
None None

In MS-Word, words, lines or paragraphs can be selected by using_____?

1 Mark(s)

Your Answer:

Shift Shift
Alt Alt
Ctrl Ctrl
F5 F5

What the does random.seed(3) return?

1 Mark(s)

Your Answer:

True True
None None
3 3
1 1

What does HTTP stands for in the context of WWW?

1 Mark(s)

Your Answer:

Hypertext Transfer Protocol Hypertext Transfer Protocol
Hypertext Transfer Protection Hypertext Transfer Protection
Hyper Transfer Protocol Hyper Transfer Protocol
None of these None of these

What is the purpose of Hadoop's HDFS Access Control Lists (ACLs) in securing data access?

1 Mark(s)

Your Answer:

Optimizes data replication in HDFS Optimizes data replication in HDFS
Enforces data compression in HDFS Enforces data compression in HDFS
Accelerates MapReduce job execution Accelerates MapReduce job execution
Provides fine-grained access control Provides fine-grained access control

To combines the concepts of the strict source route and the loose source route options of IPv4 we use:

1 Mark(s)

Your Answer:

source extension source extension
source headers source headers
source routing source routing
source host source host

Which of these methods is a part of Abstract Window Toolkit (AWT) ?

1 Mark(s)

Your Answer:

display() display()
paint() paint()
drawString() drawString()
transient() transient()

The design guidelines and priorities for read-only databases are different because read-only databases are never updated.

1 Mark(s)

Your Answer:

True True
False False

How can we filter lines based on content?

1 Mark(s)

Your Answer:

lines.filter() lines.filter()
filter(lines) filter(lines)
lines.contains(filter) lines.contains(filter)
lines.select() lines.select()

A flow of data needs resources such as a buffer, bandwidth and:

1 Mark(s)

Your Answer:

CPU time CPU time
timer timer
control flow control flow
cpu control cpu control

The minimum bandwidth of Manchester and differential Manchester is:

1 Mark(s)

Your Answer:

2 times that of NRZ 2 times that of NRZ
2 times that of NRZ-L 2 times that of NRZ-L
2 times that of NRZ-I 2 times that of NRZ-I
2 times that of RZ 2 times that of RZ

Statistical analysis requires groups of multiple:

1 Mark(s)

Your Answer:

Tuples Tuples
Attributes Attributes
Relations Relations
Instances Instances

What are the three options available in Insert > Picture menu?

1 Mark(s)

Your Answer:

Clipart, Pictures, Shapes Clipart, Pictures, Shapes
Clipart, From File, Shapes Clipart, From File, Shapes
Clipart, From Files, AutoShapes Clipart, From Files, AutoShapes
Clipart, Pictures, AutoShapes Clipart, Pictures, AutoShapes

Which of the following options is not true about the Binary Search tree?

1 Mark(s)

Your Answer:

The value of the left child should be less than the root node
The value of the right child should be greater than the root node.
The left and right sub trees should also be a binary search tree
None of the above None of the above

What is the space complexity of the in-order traversal in the recursive fashion? (d is the tree depth and n is the number of nodes)

1 Mark(s)

Your Answer:

O(1) O(1)
O(nlogd) O(nlogd)
O(logd) O(logd)
O(d) O(d)

Which of the following commands will allow you to set your Telnet password on a Cisco router?

1 Mark(s)

Your Answer:

line telnet 0 4 line telnet 0 4
line aux 0 4 line aux 0 4
line vty 0 4 line vty 0 4
line con 0 line con 0

Which of the following style properties do you use to specify italic text in MS Word?

1 Mark(s)

Your Answer:

Font-italic Font-italic
Font-style Font-style
Text-style Text-style
None of these None of these

If you know all the possible values that an attribute can have, you can enumerate those values in ODL.

1 Mark(s)

Your Answer:

True True
False False

What is the time complexity of adding an edge in an adjacency list representation of a graph?

1 Mark(s)

Your Answer:

O(V) O(V)
O(E) O(E)
O(1) O(1)
O(V2) O(V2)

What is the name of C3H8?

1 Mark(s)

Your Answer:

Butane Butane
Propene Propene
Ethane Ethane
Propane Propane

Minimum and maximum font size in MS Word is _____?

1 Mark(s)

Your Answer:

8-72 8-72
6-60 6-60
12-50 12-50
8-96 8-96

Which field type will you select when creating a new table if you require to enter long text in that field?

1 Mark(s)

Your Answer:

Text Text
Memo Memo
Currency Currency
Hyperlink Hyperlink

The benefit of streamlined body is that, it helps animal to move freely without:

1 Mark(s)

Your Answer:

oxygen oxygen
friction friction
sinking sinking
bursting bursting

In rollback work, the database state is:

1 Mark(s)

Your Answer:

Modified Modified
Constant Constant
Restored Restored
Mismanaged Mismanaged

In message integrity, the message digest needs to be kept:

1 Mark(s)

Your Answer:

secret secret
low low
high high
constant 0 constant 0

Creating a read-only database is a task that is ________ assigned to beginning database professionals.

1 Mark(s)

Your Answer:

always always
commonly commonly
seldom seldom
never never

Which gate checks for equality?

1 Mark(s)

Your Answer:

XOR XOR
XNOR XNOR
NAND NAND
NOR NOR

Which of the following keyboard shortcuts is used to activate a browser tab to the right of the current tab in a Chrome browser?

1 Mark(s)

Your Answer:

Ctrl + Page up Ctrl + Page up
Ctrl + Right arrow Ctrl + Right arrow
Alt + Left arrow Alt + Left arrow
Ctrl + Page down Ctrl + Page down

Which of the following is correct about this pointer in C++?

1 Mark(s)

Your Answer:

this pointer is passed as a hidden argument in all the functions of a class
this pointer is passed as a hidden argument in all non-static functions of a class
this pointer is passed as a hidden argument in all static functions of a class
this pointer is passed as a hidden argument in all static variables of a class

What will be the output of the following Python code? class test: def __init__(self,a="Hello World"): self.a=a def display(self): print(self.a) obj=test() obj.display()

1 Mark(s)

Your Answer:

The program has an error because constructor can't have default arguments
Nothing is displayed Nothing is displayed
"Hello World" is displayed "Hello World" is displayed
The program has an error display function doesn't have parameters

What is the purpose of the GetInvocationList() method associated with delegates in C#?

1 Mark(s)

Your Answer:

Removes a delegate from the current delegate
Adds a new delegate to the current delegate
Invokes all the delegates bound to the current delegate
Retrieves an array of delegates bound to the current delegate

What will be the output of the following Java program? import java.util.*; class Collection_Algos { public static void main(String args[]) { LinkedList list = new LinkedList(); list.add(new Integer(2)); list.add(new Integer(8)); list.add(new Integer(5)); list.add(new Integer(1)); Iterator i = list.iterator(); Collections.reverse(list); Collections.sort(list); while(i.hasNext()) System.out.print(i.next() + " "); } }

1 Mark(s)

Your Answer:

2 8 5 1 2 8 5 1
1 5 8 2 1 5 8 2
1 2 5 8 1 2 5 8
2 1 8 5 2 1 8 5

Which of these operator is used to generate an instance of an exception than can be thrown by using throw?

1 Mark(s)

Your Answer:

new new
malloc malloc
alloc alloc
thrown thrown

The star topology is used in:

1 Mark(s)

Your Answer:

LAN LAN
WAN WAN
MAN MAN
internetwork internetwork

What is the name of the property that indicates the output of linear operation (i.e., the sum of two inputs) similar to that of operation first being performed on individual inputs and then summing up the respective outcomes?

1 Mark(s)

Your Answer:

Heterogeneity Heterogeneity
Homogeneity Homogeneity
Additivity Additivity
None of the above None of the above

What is the purpose of the event onAirEvent?

1 Mark(s)

Your Answer:

Content is played Content is played
Content is transfered Content is transfered
Both Content is played and transfered Both Content is played and transfered
None of the mentioned None of the mentioned

Larger scale molecular information can be obtained from:

1 Mark(s)

Your Answer:

elastic scattering elastic scattering
scattering scattering
moderate scattering moderate scattering
light scattering light scattering

Topological Sort works on:

1 Mark(s)

Your Answer:

DAG DAG
Cyclic Graph Cyclic Graph
Undirected Graph Undirected Graph
Tree Tree

Which of the following are true regarding OSPF areas? 1. You must have separate loopback interfaces configured in each area. 2. The numbers you can assign an area go up to 65,535. 3. The backbone area is also called area 0. 4. If your design is hierarchical, then you don't need multiple areas. 5. All areas must connect to area 0.

1 Mark(s)

Your Answer:

1 only 1 only
1 and 2 only 1 and 2 only
3 and 4 only 3 and 4 only
3, 4 and 5 3, 4 and 5

How do you define a constructor in Ruby?

1 Mark(s)

Your Answer:

def initialize def initialize
def constructor def constructor
def init def init
def constructor() def constructor()

What is the role of the Hive Hadoop Compatibility feature?

1 Mark(s)

Your Answer:

Perform data analytics in Hadoop Perform data analytics in Hadoop
Manage computation resources Manage computation resources
Allow Hive to run on Hadoop 1.x and Hadoop 2.x clusters
Execute MapReduce jobs Execute MapReduce jobs

In classful addressing, the smaller networks are called:

1 Mark(s)

Your Answer:

supernet supernet
linear net linear net
subnet subnet
multinet multinet

A null value indicates an absent value that:

1 Mark(s)

Your Answer:

may exist but unknown may exist but unknown
known but doesn't exist known but doesn't exist
doesn't exist and not known doesn't exist and not known
Both A and B Both A and B

what is the result of the following piece of code: public class Person{ public void talk(){ System.out.print("I am a Person"); } } public class Student extends Person{ public void talk(){ System.out.print("I am a Student"); } } public class Test{ public static void main(String args[]){ Person p = new Student(); p.talk(); } }

1 Mark(s)

Your Answer:

I am a Person I am a Person
I am a Student I am a Student
I am a Person I am a Student I am a Person I am a Student
I am a Student I am a Person I am a Student I am a Person

Which of the following is true about the Move-To-Front Method for rearranging nodes?

1 Mark(s)

Your Answer:

node with highest access count is moved to head of the list
requires extra storage requires extra storage
may over-reward infrequently accessed nodes
requires a counter for each node requires a counter for each node

What is the size of a float variable in Java?

1 Mark(s)

Your Answer:

4 bytes 4 bytes
8 bytes 8 bytes
2 bytes 2 bytes
16 bytes 16 bytes

Using ODL, you can define which of the following?

1 Mark(s)

Your Answer:

Attribute Attribute
Structure Structure
Operation Operation
All of the above All of the above

In ER diagram, Ellipse/Oval represents:

1 Mark(s)

Your Answer:

Entity Entity
Attribute Attribute
Relationship Relationship
Action Action

Which of the following is a combinational logic circuit that has 2n input lines and a single output line?

1 Mark(s)

Your Answer:

Multiplexer Multiplexer
Demultiplexer Demultiplexer
Encoder Encoder
Decoder Decoder

Which of the following is used for reading in saved workspaces?

1 Mark(s)

Your Answer:

unserialize unserialize
load load
get get
set set

In which we clone the object and their constituent parts_______________?

1 Mark(s)

Your Answer:

Deep cloning Deep cloning
Shallow cloning Shallow cloning
Both of above Both of above
None of above None of above

Burnt sparklers and burnt books pages are examples of:

1 Mark(s)

Your Answer:

reversible reversible
irreversible irreversible
same same
constant constant

Two classes of services have been defined for:

1 Mark(s)

Your Answer:

integrated services integrated services
quality data services quality data services
technical services technical services
protocol services protocol services

What is the name of the function that is used to convert multibyte character to wide character?

1 Mark(s)

Your Answer:

mblen() mblen()
mbtowc() mbtowc()
mbstowcs() mbstowcs()
wcstombs() wcstombs()

System software which does the job of merging the records from two files into one is:

1 Mark(s)

Your Answer:

security software security software
utility program utility program
networking software networking software
documentation system documentation system

Evaluating Your Answers

Algorithms Mock Test 12 : Question 1 of 78