Python Programming Mock Test 16

What will be the output of the following PHP code? <?php $a1 = array("a"=>"red", "b"=>"green", "c"=>"blue", "d"=>"yellow"); $a2 = array("e"=>"red", "f"=>"green", "g"=>"blue"); $result = array_diff($a1, $a2); print_r($result); ?>

1 Mark(s)

Your Answer:

Array ( [d] => yellow ) Array ( [d] => yellow )
Array ( [c] => blue ) Array ( [c] => blue )
Array ( [a] => red ) Array ( [a] => red )
Array ( [e] => yellow ) Array ( [e] => yellow )

Which of the following is true about session management in Java Servlets?

1 Mark(s)

Your Answer:

Sessions are managed using SQL queries Sessions are managed using SQL queries
Sessions are not supported in Java Servlets
Sessions can be maintained using cookies or URL rewriting
Sessions can only be managed using cookies

What is the data type of the variable in C#?

1 Mark(s)

Your Answer:

int int
string string
double double
char char

Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?

1 Mark(s)

Your Answer:

show running-config show running-config
show startup-config show startup-config
show interfaces show interfaces
show versions show versions

Computer hardware can't perform any task without:

1 Mark(s)

Your Answer:

processing processing
software software
DOS DOS
operating system operating system

What is the typical time complexity of accessing an element in a Binary Search Tree (BST) in the best case?

1 Mark(s)

Your Answer:

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

What is returned by math.isfinite(float('nan'))?

1 Mark(s)

Your Answer:

True True
False False
None None
error error

The correct method to pass a parameter to an attribute is?

1 Mark(s)

Your Answer:

By name By name
By address By address
By value By value
By reference By reference

Speed of water at 0°C is:

1 Mark(s)

Your Answer:

965 m/s 965 m/s
1482 m/s 1482 m/s
1402 m/s 1402 m/s
1522 m/s 1522 m/s

A data communication system's effectiveness depends on fundamental characteristics of:

1 Mark(s)

Your Answer:

2 types 2 types
3 types 3 types
4 types 4 types
5 types 5 types

Which of the following are automatically loaded and operates as a part of browser?

1 Mark(s)

Your Answer:

Add-ons Add-ons
Plug-ins Plug-ins
Utilities Utilities
Widgets Widgets

Microsoft Office is an example of----------------?

1 Mark(s)

Your Answer:

Horizontal market software Horizontal market software
Open source software Open source software
Vertical market software Vertical market software
Closed source software Closed source software

In Java, which data type is used to store numbers with decimal points?

1 Mark(s)

Your Answer:

double double
int int
float float
decimal decimal

How many types of Website are there?

1 Mark(s)

Your Answer:

Four Four
Two Two
One One
Three Three

What will be the output of the following C++ code? #include <iostream> #include <string> using namespace std; class A{ mutable int a; public: A(){ cout<<"Default constructor called\n"; } A(const A& a){ cout<<"Copy Constructor called\n"; } }; int main(int argc, char const *argv[]) { A obj; A a1 = obj; A a2(obj); }

1 Mark(s)

Your Answer:

Default constructor called Copy Constructor called
Default constructor called Copy Constructor called Copy Constructor called
Default constructor called Default constructor called Copy Constructor called
Copy Constructor called Default constructor called Copy Constructor called

What will be the output of the following Python code? values = [[3, 4, 5, 1], [33, 6, 1, 2]] v = values[0][0] for row in range(0, len(values)): for column in range(0, len(values[row])): if v

1 Mark(s)

Your Answer:

3 3
5 5
6 6
33 33

The highest precedence is of:

1 Mark(s)

Your Answer:

(++,-- )used as prefixes (++,-- )used as prefixes
(++,--) used as suffixes (++,--) used as suffixes
(+,-) (+,-)
(=, *=, /=, %=, +=, -=) (=, *=, /=, %=, +=, -=)

In which data structure would you use a hash table?

1 Mark(s)

Your Answer:

For sorted data storage For sorted data storage
For maintaining hierarchical relationships
For implementing a priority queue For implementing a priority queue
For fast data retrieval and storage For fast data retrieval and storage

What term describes a background that appears as a grainy, non-smooth surface?

1 Mark(s)

Your Answer:

Texture Texture
Velvet Velvet
Pattern Pattern
Gradient Gradient

Data type integer is declared by syntax:

1 Mark(s)

Your Answer:

int int
integer integer
INt INt
INT INT

Micro-blogging can be defined as __________.

1 Mark(s)

Your Answer:

Mobile related blogs Mobile related blogs
Blogs posted by companies instead of an individual
Blogs encompassing limited individual posts, which are typically limited by character count.
None of the above None of the above

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 feature makes C++ so powerful?

1 Mark(s)

Your Answer:

Easy implementation Easy implementation
Reusing the old code Reusing the old code
Easy memory management Easy memory management
All of the above All of the above

Which of the following specifies the width of an outline?

1 Mark(s)

Your Answer:

outline-size outline-size
outline-width outline-width
outline-height outline-height
both a and b both a and b

A simple parity-check code can detect:

1 Mark(s)

Your Answer:

odd number of errors odd number of errors
even number of errors even number of errors
positive number of errors positive number of errors
negative number of errors negative number of errors

In computer, customized and package softwares are type of:

1 Mark(s)

Your Answer:

application softwares application softwares
system softwares system softwares
utility programs utility programs
operating systems operating systems

In derivative equation, 'F(x,y,y', ...,yn)=0' first derivative is represented as:

1 Mark(s)

Your Answer:

y'=∂y/∂x y'=∂y/∂x
y'=∂x/∂y y'=∂x/∂y
y'=∂y x ∂x y'=∂y x ∂x
y'=∂/∂x y'=∂/∂x

In HTML, a color can be specified using a hexadecimal value in the form of:

1 Mark(s)

Your Answer:

#000000 #000000
#0 - #255 #0 - #255
#RRGGBB #RRGGBB
None None

Which one of the following is not a maintenance model ?

1 Mark(s)

Your Answer:

Waterfall model Waterfall model
Reuse-oriented model Reuse-oriented model
Iterative enhancement model Iterative enhancement model
Quick fix model Quick fix model

Which of the following ISO level is more closely related to the physical communications facilities?

1 Mark(s)

Your Answer:

Application Application
Session Session
Networking Networking
Data Link Data Link

__________maintain (s) database of webpages containing information on variety of topics.

1 Mark(s)

Your Answer:

Newsgroup Newsgroup
News server News server
Search Engines Search Engines
World wide web World wide web

Choose a framework that corresponds to Issue Based Information System (IBIS) ?

1 Mark(s)

Your Answer:

Idea -> Question -> Argument Idea -> Question -> Argument
Question -> Idea -> Argument Question -> Idea -> Argument
Issue -> Position -> Justification Issue -> Position -> Justification
Both Question -> Idea -> Argument and Issue -> Position -> Justification

All compounds are molecules but not all molecules are:

1 Mark(s)

Your Answer:

atoms atoms
electrons electrons
molecules molecules
compounds compounds

What is the purpose of database transactions?

1 Mark(s)

Your Answer:

To improve database performance To improve database performance
To create new databases To create new databases
To manage data integrity and consistency
To encrypt database files To encrypt database files

What is the highest index of an array with 10 elements in Java?

1 Mark(s)

Your Answer:

9 9
10 10
0 0
1 1

What does the "bang" (!) operator do when appended to a method name in Ruby?

1 Mark(s)

Your Answer:

It indicates that the method returns a new object instead of modifying the receiver
It raises an exception if the method fails
It indicates that the method mutates the receiver object
It performs a bitwise operation on the receiver object

Which of the following is a valid range reference?

1 Mark(s)

Your Answer:

C3/E5 C3/E5
C3+E5 C3+E5
C3:E5 C3:E5
None of these None of these

What is the primary role of the HBase Compaction Scheduler?

1 Mark(s)

Your Answer:

Execute MapReduce jobs Execute MapReduce jobs
Manage computation resources Manage computation resources
Perform data analytics in Hadoop Perform data analytics in Hadoop
Schedule and coordinate compaction tasks in HBase

In the TSP problem of n cities, the time taken for traversing all cities, without having prior knowledge of the length of the minimum tour will be_______.

1 Mark(s)

Your Answer:

O(n) O(n)
O(n2) O(n2)
O(n!) O(n!)
O(n/2) O(n/2)

Which of these statement is incorrect?

1 Mark(s)

Your Answer:

Every class must contain a main() method
Applets do not require a main() method at all
There can be only one main() method in a program
main() method must be made public main() method must be made public

Commit command is used to:

1 Mark(s)

Your Answer:

Undo Undo
Save permanently Save permanently
Start transaction Start transaction
Delete Delete

What will be the output when the following program is compiled and executed? abstract class TestAbstract{ String my_name; String myName(){ my_name = "Examveda"; return my_name; } abstract void display(); } public class Test extends TestAbstract{ void display(){ String n = myName(); System.out.print("My name is "+ n); } public static void main(String args[]){ Test t = new Test(); t.display(); } }

1 Mark(s)

Your Answer:

Program will compile and execute successfully and prints
Compilation error as class can not be declared as abstract.
Program compiles but leads to runtime exception.
Compilation error occurs as the abstract class TestAbstract contains a non-abstract method.
None of these None of these

In Access, which data type is used for "quantity"?

1 Mark(s)

Your Answer:

Number Number
Currency Currency
Text Text
None None

The web UI provides information about . . . . . . . . job statistics of the Hama cluster.

1 Mark(s)

Your Answer:

MPP MPP
BSP BSP
USP USP
ISP ISP

What kind of exception is being thrown if Wait(), Pulse() or PulseAll() is called from code that is not within synchronized code?

1 Mark(s)

Your Answer:

System I/O Exception System I/O Exception
DivideByZero Exception DivideByZero Exception
SynchronizationLockException SynchronizationLockException
All of the mentioned All of the mentioned

F5 is used for ______?

1 Mark(s)

Your Answer:

Refresh program Refresh program
Universal help Universal help
To help To help
None of these None of these

A software component____________________?

1 Mark(s)

Your Answer:

Implements some functionality Implements some functionality
Has explicit dependencies through provides and required interfaces
Communicates through its interfaces only
All of the mentioned All of the mentioned

Two for one twisting machine have gauges:

1 Mark(s)

Your Answer:

200 mm 200 mm
240 mm 240 mm
300 mm 300 mm
all of above all of above

In R, what is the role of the ifelse() function?

1 Mark(s)

Your Answer:

To check a single condition and execute different code based on the result
To iterate over elements of a vector and apply a condition
To generate random numbers based on a condition
To switch between different conditions and values

Semimajor axis of planet Mercury is:

1 Mark(s)

Your Answer:

5.79x1010 m 5.79x1010 m
10.8x1010 m 10.8x1010 m
15.0x1010 m 15.0x1010 m
22.8x1010 m 22.8x1010 m

Which of the following jQuery method is used to merge the content of two or more objects into the first object?

1 Mark(s)

Your Answer:

jQuery extend() method jQuery extend() method
jQuery eq() method jQuery eq() method
jQuery data() method jQuery data() method
jQuery param() method jQuery param() method

Element of a computer protocol specifies the information structure needed for coordination among machines and for data handling is:

1 Mark(s)

Your Answer:

syntax syntax
semantic semantic
format format
timing timing

In MS Word, the function of the "Header & Footer" tool is to ______?

1 Mark(s)

Your Answer:

Display repeating text across pages Display repeating text across pages
Insert comments Insert comments
Add references Add references
None of these None of these

Time complexity to build a Heap:

1 Mark(s)

Your Answer:

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

In a computer spreadsheet, command used to merge number of selected cells into one cell is called:

1 Mark(s)

Your Answer:

merge merge
split split
merge and center merge and center
one unit one unit

Evaluating Your Answers

Python Programming Mock Test 16 : Question 1 of 55