C Programming Mock Test 11 - Online MCQ Exam

Who Invented the First Computer Mouse?

1 Mark(s)

Your Answer:

Douglas Engelbart Douglas Engelbart
Ada Lovelace Ada Lovelace
Charles Babbage Charles Babbage
None of these None of these

Shooting stars are called __________

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Your Answer:

A) asteroids A) asteroids
B) galaxies B) galaxies
C) meteors C) meteors
D) andromeda D) andromeda

What is returned by math.modf(1.0)?

1 Mark(s)

Your Answer:

(0.0, 1.0) (0.0, 1.0)
(1.0, 0.0) (1.0, 0.0)
(0.5, 1) (0.5, 1)
(0.5, 1.0) (0.5, 1.0)

What does the term "lazy evaluation" refer to in Ruby?

1 Mark(s)

Your Answer:

Repeatedly evaluating a computation until the desired result is obtained
Storing the result of a computation for future use
Delaying the execution of a computation until the result is needed
Evaluating a computation as soon as it is defined

___________ can occur at the individual, group, organizational or extra-organizational level?

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Your Answer:

Planning Planning
Controlling Controlling
Organizing Organizing
Scheduling Scheduling

In HBase, what does the term "MemStore" refer to?

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Your Answer:

A storage format in Hadoop A storage format in Hadoop
A query language for HBase A query language for HBase
A distributed file system A distributed file system
In-memory storage for recent writes In-memory storage for recent writes

In R, what is the purpose of the names() function?

1 Mark(s)

Your Answer:

Retrieve the number of elements in an object
Set or retrieve names of an object Set or retrieve names of an object
Assign names to the elements Assign names to the elements
Remove names from an object Remove names from an object

What is the time complexity to insert a node based on key in a priority queue?

1 Mark(s)

Your Answer:

O(nlogn) O(nlogn)
O(logn) O(logn)
O(n) O(n)
O(n2) O(n2)

Which of the following is the slowest in accessing data?

1 Mark(s)

Your Answer:

Zip disk Zip disk
Hard disk Hard disk
Floppy disk Floppy disk
Magnetic disk Magnetic disk

What will be the output of the following Python code? list(map((lambda x:x**2), filter((lambda x:x%2==0), range(10))))

1 Mark(s)

Your Answer:

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
[0, 4, 16, 36, 64] [0, 4, 16, 36, 64]
Error Error
No output No output

Multiplexing techniques are of:

1 Mark(s)

Your Answer:

3 types 3 types
4 types 4 types
5 types 5 types
6 types 6 types

What does increased chain lengths give?

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Your Answer:

better properties better properties
worse properties worse properties
constant properties constant properties
variable properties variable properties

What will be the output of the following Python code? #generator def f(x): yield x+1 g=f(8) print(next(g))

1 Mark(s)

Your Answer:

8 8
9 9
7 7
Error Error

Why to prefer splay trees?

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Your Answer:

easier to program easier to program
space efficiency space efficiency
easier to program and faster access to recently accessed items
quick searching quick searching

What will be the output of the following Python code snippet? '%d %s %g you' %(1, 'hello', 4.0)

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Your Answer:

Error Error
1 hello you 4.0 1 hello you 4.0
1 hello 4 you 1 hello 4 you
1 4 hello you 1 4 hello you

Window.localStorage HTML object stores data with:

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Your Answer:

Expiration Date Expiration Date
No expiration date No expiration date
One session One session
Both B and C Both B and C

. . . . . . . . is an easy-to-use interface to play digital media files.

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Your Answer:

Wordpad Wordpad
Notepad Notepad
Mediaplayer Mediaplayer
Games Games

Which of the following is used to terminate the structure in C++?

1 Mark(s)

Your Answer:

; ;
: :
;; ;;
} }

What will be the output of the following Python code? d = {0: 'a', 1: 'b', 2: 'c'} for x, y in d: print(x, y)

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Your Answer:

0 1 2 0 1 2
a b c a b c
0 a 1 b 2 c 0 a 1 b 2 c
none of the mentioned none of the mentioned

Ampere's law define:

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Your Answer:

gravitational force gravitational force
tension force tension force
rotational force rotational force
electromagnetic force electromagnetic force

In MS Word, Key Tips appear whenever you press the:

1 Mark(s)

Your Answer:

Ctrl key Ctrl key
Alt key Alt key
Shift key Shift key
Tab key Tab key

What will be the output of the following C# code? static void Main(string[] args) { int a = 4, b = 5, c = 7, u = 9; int h; h = (Convert.ToInt32(u < b)) + (a + b--) + 2; Console.WriteLine(h); Console.WriteLine(b); Console.WriteLine(u < b); }

1 Mark(s)

Your Answer:

12, 5, 0 12, 5, 0
11, 4, False 11, 4, False
11, 5, 0 11, 5, 0
12, 4, False 12, 4, False

Flats of sliver count autoleveller vary from:

1 Mark(s)

Your Answer:

100 to 400mm per min 100 to 400mm per min
500 to 900mm per min 500 to 900mm per min
900 to 1,200mm per min 900 to 1,200mm per min
1,200 to 1,500mm per min 1,200 to 1,500mm per min

Which Java class is used to read input from the keyboard?

1 Mark(s)

Your Answer:

InputStreamReader InputStreamReader
BufferedReader BufferedReader
System.in System.in
Scanner Scanner

Which array method adds a new element to the end of an array?

1 Mark(s)

Your Answer:

push() push()
pop() pop()
shift() shift()
join() join()

We can declare the schema of our data either in a . . . . . . . . file.

1 Mark(s)

Your Answer:

JSON JSON
XML XML
SQL SQL
R R

What are some ethical considerations for web scraping?

1 Mark(s)

Your Answer:

Scraping any data without permission Scraping any data without permission
Ignoring robots.txt guidelines Ignoring robots.txt guidelines
Scraping personal or sensitive data Scraping personal or sensitive data
Scraping freely accessible public data Scraping freely accessible public data

Which one of the following correctly refers to the command line arguments?

1 Mark(s)

Your Answer:

Arguments passed to the main() function Arguments passed to the main() function
Arguments passed to the structure-function
Arguments passed to the class functions Arguments passed to the class functions
Arguments passed to any functions Arguments passed to any functions

Which command will you choose to convert a column of data into row?

1 Mark(s)

Your Answer:

Cut and Paste Cut and Paste
Paste Special > Transpose Paste Special > Transpose
Both of above Both of above
None of above None of above

The following statements are about EOF. Which of them is true?

1 Mark(s)

Your Answer:

Its value is defined within stdio.h Its value is defined within stdio.h
Its value is implementation dependent Its value is implementation dependent
Its value can be negative Its value can be negative
Its value should not equal the integer equivalent of any character
All of the these All of the these

Which of the following constructor of class Thread is valid one?

1 Mark(s)

Your Answer:

Thread(Runnable threadOb, int priority) Thread(Runnable threadOb, int priority)
Thread(int priority) Thread(int priority)
Thread(Runnable threadOb, String threadName)
Thread(String threadName, int priority) Thread(String threadName, int priority)
None of these None of these

A magnet exerts a force called:

1 Mark(s)

Your Answer:

electrical force electrical force
chemical force chemical force
magnetic force magnetic force
magnetic field magnetic field

Which statement about sequences is not true?

1 Mark(s)

Your Answer:

A sequence is an object that generates a sequential series of unique numbers.
Sequences are most often used to provide values for surrogate keys.
NextVal and CurrVal are both sequence methods.
Sequences guarantee valid surrogate key values.

If the math class had add property with get accessors then which of the following statements will work correctly?

1 Mark(s)

Your Answer:

math m = new math(); m.add = 10; math m = new math(); m.add = 10;
math m = new math(); m.add = m.add + 20;
math m = new math(); int i; i = m.add; math m = new math(); int i; i = m.add;
math.add = 20; math.add = 20;

What will be the output of the following R code? options(digits = 16) 20/6

1 Mark(s)

Your Answer:

3.33 3.33
3.333 3.333
3.3333333 3.3333333
3.3333333333333333 3.3333333333333333

Huffman Coding is a greedy algorithm used for?

1 Mark(s)

Your Answer:

Data Compression Data Compression
Encryption Encryption
Shortest Path Shortest Path
Sorting Sorting

Which of the following is a stringizing operator?

1 Mark(s)

Your Answer:

# #
% %
## ##

Defining the types of values associated with each attribute, is the task done by:

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Your Answer:

View definition View definition
SQL DML SQL DML
SQL DML SQL DML
SQL DDL SQL DDL

What is the type of sys.argv?

1 Mark(s)

Your Answer:

set set
list list
tuple tuple
string string

Computer software which is available free for a limited period of time is called:

1 Mark(s)

Your Answer:

freeware freeware
groupware groupware
shareware shareware
vertical vertical

In which process, a local variable has the same name as one of the instance variables?

1 Mark(s)

Your Answer:

Serialization Serialization
Variable Shadowing Variable Shadowing
Abstraction Abstraction
Multi-threading Multi-threading

The equivalent infix expression and value for the postfix form 1 2 + 3 * 4 5 * - will be . . . . . . . .

1 Mark(s)

Your Answer:

1 + 2 * 3 - 4 * 5 and -13 1 + 2 * 3 - 4 * 5 and -13
(2 + 1) * (3 - 4) * 5 and 13 (2 + 1) * (3 - 4) * 5 and 13
1 + 2 * (3 - 4) * 5 and -11 1 + 2 * (3 - 4) * 5 and -11
(1 + 2) * 3 - (4 * 5) and -11 (1 + 2) * 3 - (4 * 5) and -11

Suppose all web material is located within the directory /home/www. To prevent users from viewing and manipulating files such as /etc/password, which one of the following statements should you use?

1 Mark(s)

Your Answer:

open_dir = “/home/www/” open_dir = “/home/www/”
open_dir = /home/www/ open_dir = /home/www/
open_basedir = /home/www/ open_basedir = /home/www/
open_basedir = “/home/www/” open_basedir = “/home/www/”

A 16-bit port address represents:

1 Mark(s)

Your Answer:

one single number one single number
four chunks of numbers four chunks of numbers
two numbers two numbers
three number three number

Which short cut key used for help ?

1 Mark(s)

Your Answer:

F1 F1
F2 F2
F3 F3
F4 F4

What are the events generated by the Node objects called?

1 Mark(s)

Your Answer:

generators generators
emitters emitters
dispatchers dispatchers
highevents highevents

What will the following code result into byte destinationVar; short sourceVar = 281; destinationVar = (byte)sourceVar; Console.WriteLine("sourceVar val: {0}", sourceVar); Console.WriteLine("destinationVar val: {0}", destinationVar); :

1 Mark(s)

Your Answer:

sourceVar val: 281 destinationVar val: 25
sourceVar val: 281 destinationVar val: 281
sourceVar val: 281 destinationVar val: ?
sourceVal val:281 destinationVar val: e^25

The device linking all the nodes in a network that uses bus topology, is called:

1 Mark(s)

Your Answer:

Router Router
Repeater Repeater
Hub Hub
Backbone Backbone

(STREET ADDRESS, CITY, STATE, ZIP) is an ideal primary key.

1 Mark(s)

Your Answer:

True True
False False

Which of the following statements is true about the VPN in Network security?

1 Mark(s)

Your Answer:

It is a type of device that helps to ensure that communication between a device and a network is secure.
It is usually based on the IPsec( IP Security) or SSL (Secure Sockets Layer)
It typically creates a secure, encrypted virtual "tunnel" over the open internet
All of the above All of the above

According to Pareto’s principle, x% of defects can be traced to y% of all causes. What are the values of x and y ?

1 Mark(s)

Your Answer:

60, 40 60, 40
70, 30 70, 30
80, 20 80, 20
No such principle exists No such principle exists

If no force acts on a body, the body's velocity cannot change, that is the body cannot accelerate, is the Newton's:

1 Mark(s)

Your Answer:

1st Law 1st Law
2nd Law 2nd Law
3rd Law 3rd Law
4th Law 4th Law

MidJourney.com is used for what purpose?

1 Mark(s)

Your Answer:

Code generation Code generation
Video editing Video editing
Art generation Art generation
Text summarization Text summarization

In congestion control, DVL stands for:

1 Mark(s)

Your Answer:

Delay versus Lose Delay versus Lose
Delay Variable Line Delay Variable Line
Delay versus Load Delay versus Load
Delay Variable Load Delay Variable Load

Ratio of Electric field and current density is called:

1 Mark(s)

Your Answer:

resistivity resistivity
resistance resistance
capacitance capacitance
conductivity conductivity

Which Java keyword is used to define a subclass that inherits from another class?

1 Mark(s)

Your Answer:

implements implements
inherits inherits
extends extends
subclass subclass

Ambari leverages . . . . . . . . for system alerting and will send emails when your attention is needed.

1 Mark(s)

Your Answer:

Nagios Nagios
Nagaond Nagaond
Ganglia Ganglia
All of the mentioned All of the mentioned

Which of the following gives the 4th element of the array?

1 Mark(s)

Your Answer:

Array[0]; Array[0];
Array[0]; Array[0];
Array[3]; Array[3];
None of the above None of the above

Choose the correct properties of weak-heap.

1 Mark(s)

Your Answer:

Every node has value greater than the value of child node
Every right child of node has greater value than parent node
Every left child of node has greater value than parent node
Every left and right child of node has same value as parent node

Which command is used to rename a column in MySQL?

1 Mark(s)

Your Answer:

UPDATE COLUMN UPDATE COLUMN
ALTER TABLE ALTER TABLE
MODIFY NAME MODIFY NAME
REPLACE REPLACE

Energy associated with a set of electric charges arranged in a certain configuration is called:

1 Mark(s)

Your Answer:

Electric Potential Energy Electric Potential Energy
Magnetic Potential Energy Magnetic Potential Energy
Poynting Potential Energy Poynting Potential Energy
Dipole Potential Energy Dipole Potential Energy

Which things in UML are the explanatory parts of UML models ?

1 Mark(s)

Your Answer:

Structural things Structural things
Behavioral things Behavioral things
Grouping things Grouping things
Annotational things Annotational things

Naturally formed fibrils have a thickness of about:

1 Mark(s)

Your Answer:

4 nm 4 nm
5 nm 5 nm
8 nm 8 nm
10 nm 10 nm

What will be the output of the following Python code snippet? bool(‘False’) bool()

1 Mark(s)

Your Answer:

True True True True
False True False True
False False False False
True False True False

What will the following script output? <?php $array = array (1, 2, 3, 5, 8, 13, 21, 34, 55); $sum = 0; for ($i = 0; $i

1 Mark(s)

Your Answer:

78 78
19 19
NULL NULL
5 5

Number of byte to be read into the buffer of the system is:

1 Mark(s)

Your Answer:

DWORD bytesTowrite DWORD bytesTowrite
DWORD bytesToread DWORD bytesToread
WORD bytesTowrite WORD bytesTowrite
WORD bytesToread WORD bytesToread

What is the main function of the Drafts folder in Gmail?

1 Mark(s)

Your Answer:

To store emails that have been sent successfully.
To store incoming emails from other people.
To store emails that are written but not yet sent.
To store deleted emails temporarily. To store deleted emails temporarily.

Which function is used to free allocated memory but does not remove the pointer in C?

1 Mark(s)

Your Answer:

clear() clear()
free() free()
release() release()
deallocate() deallocate()

__________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

Evaluating Your Answers

C Programming Mock Test 11 : Question 1 of 69