C++ Programming Mock Test 2

Sergen Brin and Larry Page are the founder of ____?

1 Mark(s)

Your Answer:

Twitter Twitter
Facebook Facebook
YouTube YouTube
Google Google
Instagram Instagram

A class consists of two interfaces with each interface consisting of three methods. The class had no instance data. Which of the following indicates the correct size of object created from this class?

1 Mark(s)

Your Answer:

12 bytes 12 bytes
16 bytes 16 bytes
0 bytes 0 bytes
24 bytes 24 bytes

Mount Everest has gravitational acceleration of:

1 Mark(s)

Your Answer:

9.80 m/s2 9.80 m/s2
9.71 m/s2 9.71 m/s2
8.70 m/s2 8.70 m/s2
0.225 m/s2 0.225 m/s2

Command which is used to copy files is:

1 Mark(s)

Your Answer:

copy copy
diskcopy diskcopy
type type
cut cut

Output?int a=5; int b=3; cout << a|b;

1 Mark(s)

Your Answer:

6 6
7 7
1 1
0 0

What will be the output of the following PHP code? <?php $num = "123"; if (!filter_var($num, FILTER_VALIDATE_INT)) echo("Integer is not valid"); else echo("Integer is valid"); ?>

1 Mark(s)

Your Answer:

No output is returned No output is returned
Integer is not valid Integer is not valid
Integer is valid Integer is valid
Error Error

Roles can be granted to users, as well as to other:

1 Mark(s)

Your Answer:

Administrators Administrators
Roles Roles
Developers Developers
Creators Creators

In MapReduce, what does the term "Map" refer to?

1 Mark(s)

Your Answer:

Task that processes the Map output Task that processes the Map output
Task that processes the Reduce output Task that processes the Reduce output
Task that processes the Map input Task that processes the Map input
Task that processes the Reduce input Task that processes the Reduce input

7.15x107 m is the radius of:

1 Mark(s)

Your Answer:

Earth Earth
Jupiter Jupiter
Earth's moon Earth's moon
Neutron star Neutron star

Inverse Laplace transform of f(s)=4/(s2-2s-3) is:

1 Mark(s)

Your Answer:

e3t-et e3t-et
e-3t-et e-3t-et
e-3t-e-t e-3t-e-t
e3t-e-t e3t-e-t

When real battery of EMF E and internal resistance r does work on the charge carrier in a current i through the battery, rate P of energy transfer to the charge carrier, if V is potential, is:

1 Mark(s)

Your Answer:

P=iV P=iV
P=V/i P=V/i
P=i/V P=i/V
P=i+V P=i+V

At which level Theme can be applied:

1 Mark(s)

Your Answer:

Page level Page level
Site level (through the Web.config file)
Individual control level Individual control level
All of the above All of the above

What will be the output of the following C++ code? #include <stdio.h> #include <math.h> int main () { printf ("The value of -3.1416 is %lf\n", fabs (-3.1416)); return 0; }

1 Mark(s)

Your Answer:

3.1416 3.1416
-3.1416 -3.1416
-3.141600 -3.141600
3.141600 3.141600

What does DMA stand for?

1 Mark(s)

Your Answer:

Distinct Memory Access Distinct Memory Access
Direct Memory Access Direct Memory Access
Direct Module Access Direct Module Access
Direct Memory Allocation Direct Memory Allocation

What will be the output of the following C code? #include <stdio.h> void main() { int k; for (k = -3; k

1 Mark(s)

Your Answer:

Hello Hello
Infinite hello Infinite hello
Run time error Run time error
Nothing Nothing

What is the purpose of Hadoop ResourceManager in YARN?

1 Mark(s)

Your Answer:

Manage storage layer Manage storage layer
Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs
Manage Hadoop ecosystem tools Manage Hadoop ecosystem tools

The adaptive system management refers to:

1 Mark(s)

Your Answer:

Science of making machine performs the task that would require intelligence when performed by humans.
A computational procedure that takes some values as input and produces some values as the output.
It uses machine learning techniques, in which programs learn from their past experience and adapt themself to new conditions or situations.
All of the above. All of the above.

Which of the following script is used to check scripts that have failed jobs?

1 Mark(s)

Your Answer:

a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]); b = foreach a generate (Chararray) j#'STATUS' as status, j#'PIG_SCRIPT_ID' as id, j#'USER' as user, j#'JOBNAME' as script_name, j#'JOBID' as job; c = filter b by status != 'SUCCESS'; dump c;
a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]); b = foreach a generate j#'PIG_SCRIPT_ID' as id, j#'USER' as user, j#'JOBNAME' as script_name, (Long) r#'NUMBER_REDUCES' as reduces; c = group b by (id, user, script_name) parallel 10; d = foreach c generate group.user, group.script_name, MAX(b.reduces) as max_reduces; e = filter d by max_reduces == 1; dump e;
a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]); b = foreach a generate j#'PIG_SCRIPT_ID' as id, j#'USER' as user, j#'QUEUE_NAME' as queue; c = group b by (id, user, queue) parallel 10; d = foreach c generate group.user, group.queue, COUNT(b); dump d;
None of the mentioned None of the mentioned

One common design problem when designing a database from existing data is the presence of missing values, called blank values, in received data.

1 Mark(s)

Your Answer:

True True
False False

Which command will copy the IOS to a backup host on your network?

1 Mark(s)

Your Answer:

transfer IOS to 172.16.10.1 transfer IOS to 172.16.10.1
copy run start copy run start
copy start tftp copy start tftp
copy flash tftp copy flash tftp

What is the output of the following code: char str[] = "Hello"; cout << strlen(str); in C++?

1 Mark(s)

Your Answer:

Hello Hello
5 5
Compilation error Compilation error
Runtime error Runtime error

Which of the following is true? 1. A class can extend more than one class. 2. A class can extend only one class but many interfaces. 3. An interface can extend many interfaces. 4. An interface can implement many interfaces. 5. A class can extend one class and implement many interfaces.

1 Mark(s)

Your Answer:

1 and 2 1 and 2
2 and 4 2 and 4
3 and 5 3 and 5
3 and 4 3 and 4
2 and 5 2 and 5

The recommended basic size for a favicon is ___________ pixels

1 Mark(s)

Your Answer:

16×16 16×16
26×26 26×26
48×48 48×48
both a and c both a and c

What will be the output of the following Java code? class output { public static void main(String args[]) { String s1 = "Hello i love java"; String s2 = new String(s1); System.out.println((s1 == s2) + " " + s1.equals(s2)); } }

1 Mark(s)

Your Answer:

true true true true
false false false false
true false true false
false true false true

The defines a:

1 Mark(s)

Your Answer:

link to reset all the form values link to reset all the form values
Reset button Reset button
Reset field Reset field
Reset radio button Reset radio button

To add a new element to a list we use which command?

1 Mark(s)

Your Answer:

list1.add(5) list1.add(5)
list1.append(5) list1.append(5)
list1.addLast(5) list1.addLast(5)
list1.addEnd(5) list1.addEnd(5)

Collision in which kinetic energy is not conserved is termed as:

1 Mark(s)

Your Answer:

singular collision singular collision
inelastic collision inelastic collision
head on collision head on collision
elastic collision elastic collision

When drawing off cylinders rotate in a positive direction, it takes the fibers forward by around:

1 Mark(s)

Your Answer:

1-2 cm 1-2 cm
3-4 cm 3-4 cm
6-7 cm 6-7 cm
8-9 cm 8-9 cm

How do you filter rows where a specific variable is not equal to a given value using filter() in dplyr?

1 Mark(s)

Your Answer:

filter(variable != value) filter(variable != value)
filter(not_equal(variable, value)) filter(not_equal(variable, value))
filter(variable <> value) filter(variable <> value)
filter(variable not in value) filter(variable not in value)

Which Ruby tool is commonly used for automated testing to ensure code quality and reliability?

1 Mark(s)

Your Answer:

RSpec RSpec
Cucumber Cucumber
MiniTest MiniTest
RuboCop RuboCop

Which operator is used to check whether the expression is "NULL"?

1 Mark(s)

Your Answer:

IS NULL IS NULL
NOT NULL NOT NULL
ON ON
None of the mentioned None of the mentioned

NRZ-L and NRZ-J both have a problem of:

1 Mark(s)

Your Answer:

conversion conversion
phase shift phase shift
doesn't changes at all doesn't changes at all
DC component DC component

Which operator is used to access the member functions and variables of an object in C++?

1 Mark(s)

Your Answer:

: :
:: ::
-> ->
. .

Determine Output: void main() { int i = -1; +i; printf("i = %d, +i = %d", i, +i); }

1 Mark(s)

Your Answer:

i = -1, +i = 1 i = -1, +i = 1
i = 1, +i = 1 i = 1, +i = 1
i = -1, +i = -1 i = -1, +i = -1
None of These None of These

If you select Insert > Picture > From File

1 Mark(s)

Your Answer:

You can insert pictures and clipart You can insert pictures and clipart
You can insert clipart only You can insert clipart only
You can insert pictures only You can insert pictures only
None of above None of above

When comparing two values of type char, if they are of different lengths, then for comparison:

1 Mark(s)

Your Answer:

Extra bits are added Extra bits are added
Extra characters are added Extra characters are added
Extra spaces are added Extra spaces are added
Special characters are added Special characters are added

What does public int end(int group) return?

1 Mark(s)

Your Answer:

offset from last character of the subsequent group
offset from first character of the subsequent group
offset from last character matched offset from last character matched
offset from first character matched offset from first character matched

Evaluating Your Answers

C++ Programming Mock Test 2 : Question 1 of 37