Java Programming Mock Test 12

What happens if the values of scaling factors sx and sy less than 1 (i.e., sx<1 and sy<1)?

1 Mark(s)

Your Answer:

No change in the object's size No change in the object's size
Reduce the object's size Reduce the object's size
Increase the object's size Increase the object's size
None of the above None of the above

Which of the following operations is used to add an element to the end of a queue?

1 Mark(s)

Your Answer:

Enqueue Enqueue
Dequeue Dequeue
Peek Peek
Push Push

The updated queue configuration should be a valid one i.e. queue-capacity at each level should be equal to . . . . . . . .

1 Mark(s)

Your Answer:

50% 50%
75% 75%
100% 100%
0% 0%

Technically, energy is a:

1 Mark(s)

Your Answer:

vector quantity vector quantity
scalar quantity scalar quantity
infinite quantity infinite quantity
unit vector unit vector

As the specimen is in perfect focus, we should turn the knob of:

1 Mark(s)

Your Answer:

turret turret
fine adjustment fine adjustment
coarse focus coarse focus
condenser lens condenser lens

In the old-time, a user was connected to the Internet with a:

1 Mark(s)

Your Answer:

ISP ISP
ADSL ADSL
DSL DSL
dial up line dial up line

Which mode allows us to run program interactively while watching source code and variables during execution?

1 Mark(s)

Your Answer:

safe mode safe mode
debug mode debug mode
successfully run mode successfully run mode
exception mode exception mode

State true or false. Google Chrome has its own task manager, which allows you to view and manage your memory and CPU usage”

1 Mark(s)

Your Answer:

True True
False False

What does the IndexOf() method return if the specified value is not found in an array in C#?

1 Mark(s)

Your Answer:

0 0
Null Null
FALSE FALSE
-1 -1

Which is the additional command line option is available in Hive 0.10.0?

1 Mark(s)

Your Answer:

-database <dbname> -database <dbname>
-db <dbname> -db <dbname>
-dbase <<dbname> -dbase <<dbname>
All of the mentioned All of the mentioned

In which data structure is the concept of "weighted union" used?

1 Mark(s)

Your Answer:

Stack Stack
Heap Heap
Union-Find Union-Find
Binary Search Tree Binary Search Tree

What is the purpose of the TempData dictionary in ASP.NET MVC?

1 Mark(s)

Your Answer:

To store application-wide settings To store application-wide settings
To pass data between controller actions To pass data between controller actions
To handle authentication To handle authentication
None of the above None of the above

In induced noise, the impairment is created by sources like:

1 Mark(s)

Your Answer:

motor & appliances motor & appliances
power lines power lines
the sending and receiving antenna the sending and receiving antenna
motion of electrons in wire motion of electrons in wire

Which data structure is ideal for implementing a navigation system or route planning?

1 Mark(s)

Your Answer:

Heap Heap
Array Array
Linked List Linked List
Graph Graph

In ∂/∂x(un),where un is constant, is equals to:

1 Mark(s)

Your Answer:

nun-1∂/∂x nun-1∂/∂x
nun-1∂/∂x nun-1∂/∂x
nun∂u⁄∂x nun∂u⁄∂x
0 0

Which of the following specifies what parts of an element’s content are skipped over when applying any text decoration?

1 Mark(s)

Your Answer:

@font-text @font-text
font-style font-style
text-skip text-skip
text-decoration-skip text-decoration-skip

In PC, which shortcut key is used to open Windows Task Manager?

1 Mark(s)

Your Answer:

Ctrl+Esc Ctrl+Esc
Ctrl+Shift+Esc Ctrl+Shift+Esc
Alt+F4 Alt+F4
Alt+Enter Answer Alt+Enter Answer

What happens if a pointer is deleted twice in a program as shown in the following C++ statements? int *ptr = new int; delete ptr; delete ptr;

1 Mark(s)

Your Answer:

Undefined behaviour Undefined behaviour
Syntactically incorrect Syntactically incorrect
Semantically incorrect Semantically incorrect
The program runs perfectly The program runs perfectly

What does the R function median() compute?

1 Mark(s)

Your Answer:

Median of a numeric vector Median of a numeric vector
Mean of a numeric vector Mean of a numeric vector
Standard deviation of a numeric vector Standard deviation of a numeric vector
Sum of a numeric vector Sum of a numeric vector

Turing Machine was invented by:

1 Mark(s)

Your Answer:

Alan Turing Alan Turing
Von Neumann Von Neumann
Chomsky Chomsky
Dijkstra Dijkstra

What is one or more software configuration items that have been formally reviewed and agreed upon and serve as a basis for further development ?

1 Mark(s)

Your Answer:

Configuration Configuration
Baseline Baseline
Software Software
All of the mentioned All of the mentioned

What will be the output of the following PHP code ? <?php "Hello World" ?>

1 Mark(s)

Your Answer:

Error Error
Hello World Hello World
Nothing Nothing
Missing semicolon error Missing semicolon error

In OSI model, as the data packet moves from the lower to upper layer headers are

1 Mark(s)

Your Answer:

added added
removed removed
rearranged rearranged
All All

What does the 'S' in HTTPS stand for?

1 Mark(s)

Your Answer:

Standard Standard
Secure Secure
System System
Simple Simple

Which method is used to check if a variable is nil in Ruby?

1 Mark(s)

Your Answer:

.is_nil? .is_nil?
.nil? .nil?
.empty? .empty?
.null? .null?

What is deserialization?

1 Mark(s)

Your Answer:

Turning object in memory into stream of bytes
Turning stream of bytes into an object in memory
Turning object in memory into stream of bits
Turning stream of bits into an object in memory

Which of the following language feature is not an access specifier in C++?

1 Mark(s)

Your Answer:

public public
private private
C protected C protected
internal internal

Frequency of wave is defined as:

1 Mark(s)

Your Answer:

Ω/2π Ω/2π
Ωπ Ωπ
2 Ωπ 2 Ωπ
π/2 Ω π/2 Ω

When the Depth First Search of a graph is unique?

1 Mark(s)

Your Answer:

When the graph is a Binary Tree When the graph is a Binary Tree
When the graph is a Linked List When the graph is a Linked List
When the graph is a n-ary Tree When the graph is a n-ary Tree
When the graph is a ternary Tree When the graph is a ternary Tree

What is the purpose of the Time.now method in Ruby?

1 Mark(s)

Your Answer:

Returns the current time as the number of milliseconds since the Unix epoch
Returns the current time as the number of seconds since the Unix epoch
Returns the current time as a string Returns the current time as a string
Returns the current time as a Time object

The shift ciphers sometimes referred to as the:

1 Mark(s)

Your Answer:

Caesar cipher Caesar cipher
Julia cipher Julia cipher
plain cipher plain cipher
XOR cipher XOR cipher

Which of the following below is /are a valid iterator type?

1 Mark(s)

Your Answer:

Input Iterator Input Iterator
Backward Iterator Backward Iterator
Forward Iterator Forward Iterator
Both a and c above Both a and c above

What does the term "enqueue" refer to in a queue data structure?

1 Mark(s)

Your Answer:

Removing an element from the front Removing an element from the front
Adding an element to the back Adding an element to the back
Retrieving the element at the front Retrieving the element at the front
Clearing all elements from the queue Clearing all elements from the queue

The correct abbreviation of ROI is __________.

1 Mark(s)

Your Answer:

Risk on investment Risk on investment
Return on income Return on income
Risk on income Risk on income
Return on investment Return on investment

I/O modules performs the requested action on:

1 Mark(s)

Your Answer:

Programmed I/O Programmed I/O
Direct Memory Access (DMA) Direct Memory Access (DMA)
Interrupt driven I/O Interrupt driven I/O
I/O devices I/O devices

In C, what is the purpose of the 'void' keyword as a function return type?

1 Mark(s)

Your Answer:

It specifies that the function doesn't return a value
It specifies that the function returns an integer
It specifies that the function returns a character
It specifies that the function is recursive

What is output of print(math.pow(3, 2))?

1 Mark(s)

Your Answer:

9.0 9.0
None None
9 9
None of the mentioned None of the mentioned

In C#, what is the purpose of the Action delegate?

1 Mark(s)

Your Answer:

Represents a delegate that encapsulates a method that takes no parameters and does not return a value
Represents a delegate that encapsulates a method that takes no parameters and returns a value
Represents a delegate that encapsulates a method that has two parameters and returns a value
Represents a delegate that can encapsulate a method with a single parameter and does not return a value

Which of the following is not an exception handling keyword in Python?

1 Mark(s)

Your Answer:

try try
except except
accept accept
finally finally

Page Up, Page Down, Delete, Insert, and Arrow keys are known as _______?

1 Mark(s)

Your Answer:

Navigation Keys Navigation Keys
Control Keys Control Keys
Function Keys Function Keys
None of these None of these

What is the purpose of the `Map.Entry` interface in the Java Collections Framework?

1 Mark(s)

Your Answer:

It provides methods for hashing elements
It represents a synchronized collection It represents a synchronized collection
It defines a comparison function for ordering elements
It represents a key-value pair in a map It represents a key-value pair in a map

A transmission media can have signal impairment because of:

1 Mark(s)

Your Answer:

noise noise
attenuation attenuation
distortion distortion
all of above all of above

Eight-bit code that defines 256 symbols, is:

1 Mark(s)

Your Answer:

EBCDIC EBCDIC
ASCII ASCII
Unicode Unicode
Extended ASCII Extended ASCII

What will be the output of the following C++ code? #include <iostream> using namespace std; int main() { int a = 5, b = 6, c; c = (a > b) ? a : b; cout << c; return 0; }

1 Mark(s)

Your Answer:

6 6
5 5
4 4
7 7

A signal containing infinite bandwidth cannot be:

1 Mark(s)

Your Answer:

Transmitted Transmitted
Converted Converted
Sampled Sampled
Quantized Quantized

Which of the following phases occur simultaneously?

1 Mark(s)

Your Answer:

Shuffle and Sort Shuffle and Sort
Reduce and Sort Reduce and Sort
Shuffle and Map Shuffle and Map
All of the mentioned All of the mentioned

A linear Synchronous Optical Networking (SONET) network can be:

1 Mark(s)

Your Answer:

point to point point to point
multi point multi point
multilevel point multilevel point
both a and b both a and b

Virtualization allows:

1 Mark(s)

Your Answer:

Multiple OS on one hardware Multiple OS on one hardware
Faster internet Faster internet
Better graphics Better graphics
Secure email Secure email

Clause that causes the tuples in the result of a query to appear in sorted order, is said to be:

1 Mark(s)

Your Answer:

The Like clause The Like clause
AS IN clause AS IN clause
Define clause Define clause
Order By clause Order By clause

In LINQ, what does the Max operator do?

1 Mark(s)

Your Answer:

Returns the average value of a sequence Returns the average value of a sequence
Returns the sum of all values in a sequence
Returns the maximum value in a sequence Returns the maximum value in a sequence
Returns the minimum value in a sequence Returns the minimum value in a sequence

Which one of the following is actually considered as the first computer virus?

1 Mark(s)

Your Answer:

Sasser Sasser
Blaster Blaster
Creeper Creeper
Both A and C Both A and C

Phase constant is also known as:

1 Mark(s)

Your Answer:

phase angle phase angle
oblique angle oblique angle
linear angle linear angle
right angle right angle

Any data or instruction entered into the memory of a computer is considered as

1 Mark(s)

Your Answer:

Storage Storage
Output Output
Input Input
Information Information
None of these None of these

In R, how do you create a list named my_list with three elements: 1, "hello", and TRUE?

1 Mark(s)

Your Answer:

my_list <- c(1, "hello", TRUE) my_list <- c(1, "hello", TRUE)
my_list = list(1, "hello", TRUE) my_list = list(1, "hello", TRUE)
my_list(1, "hello", TRUE) my_list(1, "hello", TRUE)
list(my_list = c(1, "hello", TRUE)) list(my_list = c(1, "hello", TRUE))

Total energy is the negative of kinetic energy when orbit is:

1 Mark(s)

Your Answer:

circular circular
elliptical elliptical
rectangular rectangular
triangular triangular

What is the purpose of the Hadoop MapReduce "Combiner Optimization" in advanced MapReduce?

1 Mark(s)

Your Answer:

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

The process of conversion of water into its vapours is called

1 Mark(s)

Your Answer:

A) evaporation A) evaporation
B) condensation B) condensation
C) guttation C) guttation
D) transpiration D) transpiration

. . . . . . . . is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.

1 Mark(s)

Your Answer:

Partitioner Partitioner
OutputCollector OutputCollector
Reporter Reporter
All of the mentioned All of the mentioned

What will be the output of the following Python code? >>> a={1,2,3} >>> b=a.add(4) >>> b

1 Mark(s)

Your Answer:

0 0
{1,2,3,4} {1,2,3,4}
{1,2,3} {1,2,3}
Nothing is printed Nothing is printed

Which radiation is mainly responsible for photosynthesis?

1 Mark(s)

Your Answer:

A) UV rays A) UV rays
B) Gamma rays B) Gamma rays
C) Visible light from the Sun C) Visible light from the Sun
D) X-rays D) X-rays

What will be the output of the following C++ code? #include <iostream> using namespace std; int main () { int a, b; a = 10; b = 4; a = b; b = 7; cout << "a:"; cout << a; cout << " b:"; cout << b; return 0; }

1 Mark(s)

Your Answer:

a:4 b:7 a:4 b:7
a:10 b:4 a:10 b:4
a:4 b:10 a:4 b:10
a:4 b:6 a:4 b:6

If statement is a sort of:

1 Mark(s)

Your Answer:

assignment statement assignment statement
repitative statement repitative statement
conditional statement conditional statement
iterative statement iterative statement

Data communications system depends on four fundamental characteristics

1 Mark(s)

Your Answer:

Receiver Receiver
Sender Sender
Timeliness Timeliness
Medium Medium

Which of the following is the storage area within the computer itself which holds data only temporarily as the computer processes instruction ?

1 Mark(s)

Your Answer:

the hard disk the hard disk
main memory main memory
the control unit the control unit
read only memory read only memory

Evaluating Your Answers

Java Programming Mock Test 12 : Question 1 of 64