Java Programming Mock Test 2

What will be the output of the following PHP code ? <?php $color = "red"; echo "$color"; echo "$COLOR"; echo "$Color"; ?>

1 Mark(s)

Your Answer:

redredred redredred
redred redred
red red
Error Error

What will be the output of the following C# code snippet? class Program { static void Main(string[] args) { int[] nums = {3, 1, 2, 5, 4}; var ltAvg = from n in nums let x = nums.Average() where n

1 Mark(s)

Your Answer:

Run time error Run time error
3 3
5 5
Compile time error Compile time error

The ZooKeeper Data Directory contains files which are . . . . . . . . copy of the znodes stored by a particular serving ensemble.

1 Mark(s)

Your Answer:

transient transient
read only read only
persistent persistent
none of the mentioned none of the mentioned

Independent data marts are often created because an organization focuses on a series of short-term business objectives.

1 Mark(s)

Your Answer:

True True
False False

The first address in a block is used as the network address that represents the:

1 Mark(s)

Your Answer:

class network class network
entity entity
organization organization
data codes data codes

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

1 Mark(s)

Your Answer:

Removes the specified element Removes the specified element
Adds an element to the list Adds an element to the list
Replaces an element in the list Replaces an element in the list
Deletes the list Deletes the list

Which loop in C# is more appropriate for iterating through an array?

1 Mark(s)

Your Answer:

for for
while while
do-while do-while
foreach foreach

Which of the following are examples of autotrophic organisms?

1 Mark(s)

Your Answer:

Fungi and virus Fungi and virus
Virus and bacteria Virus and bacteria
Green plants and some bacteria Green plants and some bacteria
None of the above None of the above

For your safety in a laboratory you should always adhere to:

1 Mark(s)

Your Answer:

safety rules safety rules
chemicals chemicals
compounds compounds
apparatus apparatus

Which of the following is not available in Font Spacing?

1 Mark(s)

Your Answer:

Normal Normal
Loosely Loosely
Condensed Condensed
Expended Answer Expended Answer

How many classification schemes have been developed for NFRs ?

1 Mark(s)

Your Answer:

Two Two
Three Three
Four Four
Five Five

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

1 Mark(s)

Your Answer:

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

In the Java Collections Framework, which interface represents a last-in, first-out (LIFO) stack of elements?

1 Mark(s)

Your Answer:

`Stack` `Stack`
`Queue` `Queue`
`List` `List`
`Deque` `Deque`

Prefix femto has factor of:

1 Mark(s)

Your Answer:

1024 1024
10-21 10-21
1016 1016
10-15 10-15

Specific heat of water in joules is:

1 Mark(s)

Your Answer:

4180 J/kg. k 4180 J/kg. k
3900 J/kg.k 3900 J/kg.k
2430 J/kg.k 2430 J/kg.k
2220 J/kg.k 2220 J/kg.k

What is MQTT primarily used for?

1 Mark(s)

Your Answer:

User communication User communication
System transfer System transfer
Machine to Machine Communication Machine to Machine Communication
Create connection Create connection

Which of these methods is used to make raw MIME formatted string?

1 Mark(s)

Your Answer:

parse() parse()
toString() toString()
getString() getString()
parseString() parseString()

Ordering can be performed on:

1 Mark(s)

Your Answer:

1 attribute only 1 attribute only
Special attributes Special attributes
Multiple attributes Multiple attributes
No attributes No attributes

Which one of the following cannot be used with the virtual keyword?

1 Mark(s)

Your Answer:

Constructor Constructor
Destructor Destructor
Member function Member function
None of the above None of the above

Determine Output: void main() { int i=0; for(;i++;printf("%d", i)); printf("%d", i); }

1 Mark(s)

Your Answer:

1 1
11 11
12 12
Error Error

A Website is collection of

1 Mark(s)

Your Answer:

graphics graphics
programs programs
algorithms algorithms
web pages web pages
charts charts

Users write the programs in which language?

1 Mark(s)

Your Answer:

Low-level Language Low-level Language
High-Level Language High-Level Language
Decimal-Format Decimal-Format
Middle-Level Language Middle-Level Language

MS Word and MS Excel are ______?

1 Mark(s)

Your Answer:

Applications software Applications software
Operating systems Operating systems
High level language High level language
None of these None of these

What will be the output of the following code: for i in range(5, 0, -1): print(i)

1 Mark(s)

Your Answer:

0 4 3 2 1 0 4 3 2 1
5 4 3 2 1 5 4 3 2 1
1 2 3 4 5 1 2 3 4 5
4 3 2 1 0 4 3 2 1 0

Point out the correct statement.

1 Mark(s)

Your Answer:

PaaS supplies the infrastructure PaaS supplies the infrastructure
IaaS adds application development frameworks, transactions, and control structures
SaaS is an operating environment with applications, management, and the user interface
all of the mentioned all of the mentioned

What is the difference between DELETE and TRUNCATE?

1 Mark(s)

Your Answer:

No difference No difference
DELETE is faster DELETE is faster
TRUNCATE is faster/DDL TRUNCATE is faster/DDL
DELETE removes table structure DELETE removes table structure

If the speed of a fluid element increases as the element travels along a horizontal streamlines, pressure of the fluid must:

1 Mark(s)

Your Answer:

decrease decrease
increase increase
become infinite become infinite
become zero become zero

Which of these events is generated when computer gains or loses input focus?

1 Mark(s)

Your Answer:

ComponentEvent ComponentEvent
ContainerEvent ContainerEvent
FocusEvent FocusEvent
InputEvent InputEvent

Which of the following is not a valid C++ identifier?

1 Mark(s)

Your Answer:

_variableName _variableName
2ndVariable 2ndVariable
variable_name@ variable_name@
VariableName VariableName
Both (B) and (C) Both (B) and (C)

Consider a case where the failure of the system causes damage to the system itself or it data. What type of failure is being described here ?

1 Mark(s)

Your Answer:

Loss of service Loss of service
Incorrect service delivery Incorrect service delivery
System/data corruption System/data corruption
None of the mentioned None of the mentioned

Which of the following is the name of the node having child nodes?

1 Mark(s)

Your Answer:

Brother Brother
Sister Sister
Mother Mother
Parent Parent

The macro offset expands to a constant of type . . . . . . . .

1 Mark(s)

Your Answer:

size_t size_t
print_t print_t
ptrdiff_t ptrdiff_t
null null

Which of the following is use to view or print the data in organized manner?

1 Mark(s)

Your Answer:

Query Query
Report Report
Table Table
Form Form

The data warehouse DBMS needs to be the same DBMS used for the operational database.

1 Mark(s)

Your Answer:

True True
False False

The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.

1 Mark(s)

Your Answer:

Residual Error Rate. Residual Error Rate.
Transfer Failure Probability. Transfer Failure Probability.
Connection release failure probability. Connection release failure probability.
Connection establish. Connection establish.

What is the significance of the Hadoop Rack Awareness feature?

1 Mark(s)

Your Answer:

Optimizes data locality by considering rack information
Balances data across racks Balances data across racks
Allocates more resources to specific racks
Randomly assigns tasks to racks Randomly assigns tasks to racks

What happens if an exception occurs but is not caught by the program in C#?

1 Mark(s)

Your Answer:

The program terminates with an unhandled exception
The program continues execution The program continues execution
The program prompts the user for input The program prompts the user for input
The program enters an infinite loop The program enters an infinite loop

Law which states that the direction of an induced current is always such as to oppose the change in the circuit or the magnetic field that produces it is called:

1 Mark(s)

Your Answer:

Lenz's law Lenz's law
Ohm's law Ohm's law
Newton's law Newton's law
Biot Savart Law Biot Savart Law

Short Key Of Window Refreshing ?

1 Mark(s)

Your Answer:

F12 F12
F9 F9
F2 F2
F5 F5

Which of the following format is more compression-aggressive?

1 Mark(s)

Your Answer:

Partition Compressed Partition Compressed
Record Compressed Record Compressed
Block-Compressed Block-Compressed
Uncompressed Uncompressed

Which is the secondary storage device? ROM, CD-ROM, Hard Disk, Both B and C

1 Mark(s)

Your Answer:

ROM ROM
CD-ROM CD-ROM
Hard Disk Hard Disk
Both B and C Both B and C

Which keyword is commonly used in Cucumber feature files to define a scenario?

1 Mark(s)

Your Answer:

Then Then
When When
Given Given
And And

What will be the output of the following C# code? static void Main(string[] args) { int X = 6,Y = 2; X *= X / Y; Console.WriteLine(X); Console.ReadLine(); }

1 Mark(s)

Your Answer:

12 12
6 6
18 18
Compile time error Compile time error

Files created with Lotus 1-2-3 have an extension?

1 Mark(s)

Your Answer:

123 123
DOC DOC
WK1 WK1
XLS XLS

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

A workgroup typically comprises between 25 and 100 persons.

1 Mark(s)

Your Answer:

True True
False False

The type of comments in c# are:

1 Mark(s)

Your Answer:

Single Line Comment E.g. : // Single Line Comment E.g. : //
Multiline Comments E.g.: /* */ Multiline Comments E.g.: /* */
XML Comments E.g. : /// XML Comments E.g. : ///
All of the above All of the above

In Access press . . . . . . . . to Paste the contents of the Clipboard in the upper- left corner of the selected section

1 Mark(s)

Your Answer:

CTRL+C CTRL+C
CTRL+X CTRL+X
CTRL+V CTRL+V
None of these None of these

The clause that is first evaluated to get a relation, is:

1 Mark(s)

Your Answer:

Select clause Select clause
Define clause Define clause
From clause From clause
Where clause Where clause

What is the default exception handler in C# called?

1 Mark(s)

Your Answer:

Standard Exception Handler Standard Exception Handler
Unhandled Exception Handler Unhandled Exception Handler
Global Exception Handler Global Exception Handler
None of the above None of the above

What is a lint?

1 Mark(s)

Your Answer:

C compiler C compiler
Interactive debugger Interactive debugger
Analyzing tool Analyzing tool
C interpreter C interpreter

Which of the following is an interface?

1 Mark(s)

Your Answer:

Time Time
Timing Timing
Performance Performance
PerformanceTiming PerformanceTiming

How does Dynamic Programming solve problems that exhibit "overlapping subproblems"?

1 Mark(s)

Your Answer:

By storing the results of subproblems to avoid redundant work.
By solving each subproblem independently.
By ignoring redundant subproblems. By ignoring redundant subproblems.
By using a stack to manage subproblems. By using a stack to manage subproblems.

What does the 'remove' function in C do?

1 Mark(s)

Your Answer:

Deletes a file Deletes a file
Renames a file Renames a file
Closes a file Closes a file
Appends data to a file Appends data to a file

What is the time complexity of searching for an element in a well-distributed hash table using chaining?

1 Mark(s)

Your Answer:

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

Which are the events that have default actions that can be canceled by event handlers?

1 Mark(s)

Your Answer:

Submit and form-related events Submit and form-related events
Reset and form-related events Reset and form-related events
Submit and reset events Submit and reset events
None of the mentioned None of the mentioned

Which of the following functions of Excel would you use to extract the substring 'Pak' from the word 'Pakistan'?

1 Mark(s)

Your Answer:

=LEFT() =LEFT()
=SUBSTRING() =SUBSTRING()
=FIND() =FIND()
None of these None of these

ADF stands for ________?

1 Mark(s)

Your Answer:

All Disc Feeder All Disc Feeder
Automatic Document Feeder Automatic Document Feeder
Automatic Document Finder Automatic Document Finder
Automatic Disc Finder Automatic Disc Finder

Which of the following is the correct way to settle down values into the structure variable 'e' defined in the following C# code snippet? struct emp { public String name; public int age; public Single sal; } emp e = new emp();

1 Mark(s)

Your Answer:

e.name = "Jone"; e.age = 24; e.sal = 200;
With emp e { .name = "Jone"; .age = 24; .sal = 200; }
name = "Jone"; age = 24; sal = 200; name = "Jone"; age = 24; sal = 200;
All of the mentioned All of the mentioned

Gravitational force is defined as the force of attraction between:

1 Mark(s)

Your Answer:

two masses two masses
three masses three masses
magnets magnets
two poles two poles

In a periodic table, the row of elements is called:

1 Mark(s)

Your Answer:

sets sets
group group
column column
periods periods

What will happen while using pass by reference?

1 Mark(s)

Your Answer:

The values of those variables are passed to the function so that it can manipulate them
The location of variable in memory is passed to the function so that it can use the same memory area for its processing
The function declaration should contain ampersand (& in its type declaration)
The function declaration should contain $

Typically, there should be at least two different copies of the database schema used in the redesign process.

1 Mark(s)

Your Answer:

True True
False False

Which of the following is the file extension of the PowerPoint application?

1 Mark(s)

Your Answer:

.ppt .ppt
.jpg .jpg
.html .html
.docs .docs

Interposes Communication (IPC) related system calls used by Linux for:

1 Mark(s)

Your Answer:

Termination Termination
Development Development
Execution Execution
Communication Communication

Evaluating Your Answers

Java Programming Mock Test 2 : Question 1 of 65