Java Programming Mock Test 4

What is the recommended way to install Ruby gems in a project?

1 Mark(s)

Your Answer:

Manually downloading and adding gem files to the project
Using RubyGems Using RubyGems
Using gem install command Using gem install command
Using Bundler Using Bundler

Which of the following is used in hash tables to determine the index of any input record?

1 Mark(s)

Your Answer:

hash function hash function
hash linked list hash linked list
hash tree hash tree
hash chaining hash chaining

An increasingly popular option for data distribution as well as for fault tolerance of any database is to store a separate copy of the database at each of two or more sites.

1 Mark(s)

Your Answer:

True True
False False

Row sets can be scanned:

1 Mark(s)

Your Answer:

Backward Backward
Forward Forward
Modifying Modifying
All of the Above All of the Above

What is the output for the below code? public class Test{ public static void printValue(int i, int j, int k){ System.out.println("int"); } public static void printValue(byte...b){ System.out.println("long"); } public static void main(String... args){ byte b = 9; printValue(b,b,b); } }

1 Mark(s)

Your Answer:

long long
int int
Compilation fails Compilation fails
Compilation clean but throws RuntimeException
None of these None of these

: Which of the following statements about one-dimensional arrays is false?

1 Mark(s)

Your Answer:

Arrays can store multiple values of the same type.
Array elements are stored in contiguous memory locations.
The size of an array must be a constant expression in C.
The size of an array can be changed after declaration.

Statement that may specify restrict in order to prevent cascading revocation, is called:

1 Mark(s)

Your Answer:

Revoke Revoke
Restrict Restrict
Assign Assign
Cascade Cascade

Group of cells that are similar in task and nature form a:

1 Mark(s)

Your Answer:

Tissue Tissue
organ organ
organism organism
cytoplasm cytoplasm

In OOOVBOVB, V stands for violation and B stands for:

1 Mark(s)

Your Answer:

Bit Bit
Baud Baud
Bandwidth Bandwidth
Bipolm Bipolm

Shallow roots obtain water by spreading to:

1 Mark(s)

Your Answer:

larger surface area larger surface area
reach ground reach ground
touch stones touch stones
absorb sand absorb sand

Mirrors used in reflecting telescopes, catadioptric lens systems and headlamps are:

1 Mark(s)

Your Answer:

plane mirrors plane mirrors
concave mirrors concave mirrors
convex mirrors convex mirrors
virtual mirrors virtual mirrors

The statement that is used to tell the database system to delete the temporary relation that held the result of the query, is said to be:

1 Mark(s)

Your Answer:

Delete statement Delete statement
End statement End statement
Terminate statement Terminate statement
Close statement Close statement

An abstract class may contain:

1 Mark(s)

Your Answer:

instance variables instance variables
constructors constructors
another class another class
all of the above all of the above

What will be the output of the following C++ code? #include <iostream> using namespace std; int f(int &x, int c) { c = c - 1; if (c == 0) return 1; x = x + 1; return f(x, c) * x; } int main(int argc, char const *argv[]) { int a = 4; cout<<f(a,a); return 0; }

1 Mark(s)

Your Answer:

343 343
336 336
120 120
840 840

Computer word size is a multiple of:

1 Mark(s)

Your Answer:

16 bits 16 bits
4 bits 4 bits
1024 bits 1024 bits
10 bits 10 bits

What is the load factor?

1 Mark(s)

Your Answer:

Average array size Average array size
Average key size Average key size
Average chain length Average chain length
Average hash table length Average hash table length

In a regular expression, what does the metacharacter `^` represent when used at the beginning of a pattern?

1 Mark(s)

Your Answer:

The start of a line The start of a line
The end of a line The end of a line
Any character Any character
A space A space

In computer, process of superimposing a low frequency signal over a high frequency signal is called:

1 Mark(s)

Your Answer:

modulation modulation
demodulation demodulation
conversion conversion
transformation transformation

Offline device is _____________________?

1 Mark(s)

Your Answer:

a device which is connected to CPU a device which is connected to CPU
a device which is not connected to CPU a device which is not connected to CPU
a direct access storage device a direct access storage device
an I/O device an I/O device

Which of the following is not true about the 2-3 tree?

1 Mark(s)

Your Answer:

all leaves are at the same level all leaves are at the same level
it is perfectly balanced it is perfectly balanced
postorder traversal yields elements in sorted order
it is B-tree of order 3 it is B-tree of order 3

The process used to obtain the solute from a solution is known as:

1 Mark(s)

Your Answer:

sublimation sublimation
distillation distillation
filtration filtration
evaporation evaporation

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

1 Mark(s)

Your Answer:

Bold Bold
Italic Italic
Regular Regular
Superscript Superscript

In connection-oriented protocols, a sequence of packets are sent on the same path in:

1 Mark(s)

Your Answer:

random order random order
sequential order sequential order
no specific order no specific order
according to priority according to priority

What will be the output of the following PHP code ? <?php for ($count = 1; $count != 20;$count++) { print $count; $count++; } ?>

1 Mark(s)

Your Answer:

Infinite Infinite
123…….20 123…….20
1357…19 1357…19
13579…21 13579…21

A chip in a computer that converts parallel data from the bus into serial data that flows through a serial cable, is called:

1 Mark(s)

Your Answer:

UART UART
SCSI SCSI
MIDI MIDI
USB USB

C #include <stdio.h> int main() { const int x; x = 10; printf("%d", x); return 0; }

1 Mark(s)

Your Answer:

10 10
0 0
Runtime Error Runtime Error

What is the main drawback of using linear probing in hash tables?

1 Mark(s)

Your Answer:

Increased memory usage. Increased memory usage.
Decreased speed of hash functions. Decreased speed of hash functions.
Clustering of elements can occur. Clustering of elements can occur.
Difficulty in implementing the hash function.

Stream Control Transmission Protocol (SCTP) is a new:

1 Mark(s)

Your Answer:

message-oriented transport layer protocol
connectionless protocol connectionless protocol
connection oriented protocol connection oriented protocol
stream oriented protocol stream oriented protocol

What does the sort() function do in R?

1 Mark(s)

Your Answer:

Arrange elements in ascending order Arrange elements in ascending order
Shuffle the elements randomly Shuffle the elements randomly
Reverse the order of elements Reverse the order of elements
Sort elements in descending order Sort elements in descending order

What is the correct syntax for a function pointer?

1 Mark(s)

Your Answer:

int *ptr(int, int) int *ptr(int, int)
int (*ptr)(int, int) int (*ptr)(int, int)
int ptr(int, int) int ptr(int, int)
*int ptr(int, int) *int ptr(int, int)

The space left between the margin and the start of a paragraph is called ___________?

1 Mark(s)

Your Answer:

Spacing Spacing
Gutter Gutter
Indentation Indentation
Alignment Alignment

Which of the following can be used to create an abstract class in the C++ programming language?

1 Mark(s)

Your Answer:

By using the pure virtual function in the class
By declaring a virtual function in the base class
By declaring the virtual keyword afterward, the class Declaration
None of the above None of the above

As an example to find the set of all courses taught in the Fall 2009 or in Spring 2010, or both, the operation to be used is:

1 Mark(s)

Your Answer:

The Intersection all Operation The Intersection all Operation
The Intersection Operation The Intersection Operation
The Union Operation The Union Operation
The Except Operation The Except Operation

In which environment we can performed the Beta testing?

1 Mark(s)

Your Answer:

User's and developer's end User's and developer's end
Developer's end Developer's end
User's end User's end
None of the above None of the above

A Synchronous Optical Networking (SONET) network, can be used as a high-speed backbone carrying loads from other networks such as:

1 Mark(s)

Your Answer:

Card Swapping Machine Card Swapping Machine
ATM ATM
master card master card
gold card gold card

Evaluating Your Answers

Java Programming Mock Test 4 : Question 1 of 35