C Programming Mock Test 10 - Online MCQ Exam

The database state is restored to what it was before the first statement of the transaction was executed, in the:

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Your Answer:

Transmit work Transmit work
Trace work Trace work
Commit work Commit work
Rollback work Rollback work

A number of letter that appears a little above the normal text is called?

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Your Answer:

Superscript Superscript
Subscript Subscript
Supertext Supertext
None of these None of these

It was 19th century when scientists discovered that diseases are caused by:

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Your Answer:

microorganisms microorganisms
dead animals dead animals
contaminated water contaminated water
plants plants

The data structure required to check whether an expression contains a balanced parenthesis is?

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Your Answer:

Stack Stack
Queue Queue
Array Array
Tree Tree

Which of the following property defines the style for the bottom border of an element?

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Your Answer:

border-bottom-style border-bottom-style
border-collapse border-collapse
border-style-bottom border-style-bottom
none of the mentioned none of the mentioned

In Ruby, what is the purpose of the Module#prepend method?

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Your Answer:

It includes a module in the inheritance chain after the class itself
It extends a module to add new functionality
It creates a copy of the module and appends it to the end of the inheritance chain
It includes a module in the inheritance chain before the class itself

In R, which package is commonly used for parallel computing, especially for tasks involving loops?

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Your Answer:

parallelR parallelR
doParallel doParallel
foreach foreach
multicore multicore

Sun operating system is an operating system that provides:

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Your Answer:

symmetric multiprocessor symmetric multiprocessor
slave relationship slave relationship
symmetric multiprogramming symmetric multiprogramming
asymmetric multiprocessing asymmetric multiprocessing

How do you display current date only in MS Excel?

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Your Answer:

Date () Date ()
Today () Today ()
Now () Now ()
Time () Time ()

You may specify an object identifier with only one unique tag name.

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Your Answer:

True True
False False

You can specify parameter names and parameter values in one of the ways?

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Your Answer:

As part of a command line. As part of a command line.
In parameter file, as part of a command line
With the declare statement, as part of Pig script
All of the mentioned All of the mentioned

The send window in the Go-Back-N Protocol is an abstract concept defining an imaginary box with:

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Your Answer:

one variable one variable
two variables two variables
three variables three variables
four variables four variables

Which syntax is used to describe elements in CSS?

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Your Answer:

Protectors Protectors
Selectors Selectors
Both Protectors and Selectors Both Protectors and Selectors
None of the mentioned None of the mentioned

Which of the following R code generate a uniform random number?

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Your Answer:

x <- runif(1, 0, 10) if(x > 3) { y <- 10 } else { y <- 0 }
x <- run(1, 0, 10) if(x > 3) { y <- 10 } else { y <- 0 }
x <- random(1, 0, 10) if(x > 3) { y <- 10 } else { y <- 0 }
x <- random(1, 0, 10) if(x > 1) { y <- 0 } else { x <- 0 }

For a more extensive search, which keyword needs to be used?

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Your Answer:

?? ??
? ?
?= ?=
=? =?

Which model assumes that systems are created from reusable components, scripting or database programming ?

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Your Answer:

An application-composition model An application-composition model
A post-architecture model A post-architecture model
A reuse model A reuse model
An early design model An early design model

Which of this keyword can be used in a subclass to call the constructor of superclass?

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Your Answer:

super super
this this
extent extent
extends extends

Predict the output of following C++ program? CPP #include<iostream> using namespace std; class Test { private: int x; public: Test() {x = 0;} void destroy() { delete this; } void print() { cout << "x = " << x; } }; int main() { Test obj; obj.destroy(); obj.print(); return 0; }

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Your Answer:

x = 0 x = 0
compiler error compiler error
runtime error runtime error

What is the significance of the 'extern' storage class?

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Your Answer:

Local scope Local scope
External linkage External linkage
Automatic alloc. Automatic alloc.
Static duration Static duration

Which operator is having the right to left associativity in the following?

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Your Answer:

Array subscripting Array subscripting
Function call Function call
Addition and subtraction Addition and subtraction
Type cast Type cast

Computer that uses microprocessor as its central processing unit is known as:

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Your Answer:

personal computer personal computer
micro computer micro computer
mini computer mini computer
both A and B both A and B

What is the purpose of the pending keyword in RSpec?

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Your Answer:

Skips a test or example without running it
Marks a test or example as failing Marks a test or example as failing
Marks a test or example as passing Marks a test or example as passing
Marks a test or example as pending, meaning it has not been implemented yet

The number of edges from the node to the deepest leaf is called . . . . . . . . of the tree.

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Your Answer:

Height Height
Depth Depth
Length Length
Width Width

In Hadoop MapReduce, what is the role of the Hadoop Counters?

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Your Answer:

Track the progress of MapReduce jobs Track the progress of MapReduce jobs
Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs
Manage Hadoop ecosystem tools Manage Hadoop ecosystem tools

What will be the output of the following Python code? try: if '1' != 1: raise "someError" else: print("someError has not occurred") except "someError": print ("someError has occurred")

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Your Answer:

someError has occurred someError has occurred
someError has not occurred someError has not occurred
invalid code invalid code
none of the mentioned none of the mentioned

What is the output of the given code? print "Hey" puts "Everyone!" print "We are learning Ruby"

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Your Answer:

Error Error
Hey everyone we are learning Ruby Hey everyone we are learning Ruby
Hey everyone Hey everyone
Hey Everyone We are learning Ruby Hey Everyone We are learning Ruby

In the following C++ code how many times the string "A's constructor called" will be printed? #include <iostream> #include <string> using namespace std; class A{ int a; public: A(){ cout<<"A's constructor called"; } }; class B{ static A a; public: B(){ cout<<"B's constructor called"; } static A get(){ return a; } }; A B::a; int main(int argc, char const *argv[]) { B b; A a1 = b.get(); A a2 = b.get(); A a3 = b.get(); }

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Your Answer:

3 3
4 4
2 2
1 1

Which of the following is not a type of computer's memory ROM?

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Your Answer:

PROM PROM
EPROM EPROM
EEPROM EEPROM
FPROM FPROM

To select one hyperlink after another during a slide presentation, what do you press?

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Your Answer:

Tab Tab
Ctrl + K Ctrl + K
Ctrl + h Ctrl + h
All of above All of above

Can the following C code be compiled successfully? #include <stdio.h> struct p { int k; char c; float f; }; int main() { struct p x = {.c = 97, .f = 3, .k = 1}; printf("%f\n", x.f); }

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Your Answer:

Yes Yes
No No
Depends on the standard Depends on the standard
Depends on the platform Depends on the platform

Hadoop is used for:

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Your Answer:

Web hosting Web hosting
Big Data Big Data
Graphics Graphics
Email Email

A guard against accidental damage to the database, is known to be:

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Your Answer:

Redundancy constraints Redundancy constraints
Integrity constraints Integrity constraints
Isolated integrity Isolated integrity
Atomicity Atomicity

#pragma GCC poison should be followed by a list of identifiers that are . . . . . . . .

1 Mark(s)

Your Answer:

even in number even in number
odd in number odd in number
valid valid
invalid invalid

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

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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

What does the __FILE__ constant represent in Ruby?

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Your Answer:

The name of the script being executed The name of the script being executed
The name of the directory containing the current file
The name of the current file being executed
The current line number in the source file

What will be the output? String str1 = "abcde"; System.out.println(str1.substring(1, 3));

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Your Answer:

abc abc
bc bc
bcd bcd
abcd abcd
None of these None of these

Which of the following function is used to insert an element at the end of a vector?

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Your Answer:

push_back() push_back()
pop_back() pop_back()
front() front()
end() end()

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C Programming Mock Test 10 : Question 1 of 37