Olete.in – MCQs, Mock Tests & Government Job Prep

For looping in a list, ____ is used.

1. for
2. fordo
3. foreach
4. while

✅ Correct Answer: 3

perl also supports use of for loop in the following manner. for($i=0;$i<3;$i++){ }

1. True
2. False
3. all of the above
4. none of the above

✅ Correct Answer: 1

For splitting a line or expression into fields, __ is used.

1. foreach
2. for
3. split
4. join

✅ Correct Answer: 3

___ function is used for joining lists.

1. foreach
2. for
3. split
4. join

✅ Correct Answer: 4

perl is ____ of grep, tr, sed and awk.

1. subset
2. superset
3. child
4. parent

✅ Correct Answer: 2

The following will display : perl -e ‘print “UNIX” x 10 . “ ” ;’

1. UNIX
2. UNIX 10 times
3. error message
4.

✅ Correct Answer: 2

Perl scripts are text files.

1. True
2. False
3. all of the above
4. none of the above

✅ Correct Answer: 1

The shebang line is _______

1. #!
2. !#
3. #$
4. $#

✅ Correct Answer: 1

When you're pattern matching, you describe the pattern using:

1. A string in double quotes
2. A MySQL select statement
3. A regular expression
4. A template

✅ Correct Answer: 3

Perl is:

1. A type of interactive web page
2. A programming language
3. An application program
4. A relational database

✅ Correct Answer: 2

The printf format "%6.2f" displays a number …

1. At least six columns wide in total, with two figures after the decimal place
2. Exactly six digits before the decimal place, and two digits after
3. At least six digits before the decimal place, and two digits after
4. Exactly six columns wide in total, with two figures after the decimal place

✅ Correct Answer: 1

The statement open (FH,"abc.txt");

1. opens the file abc.txt for overwriting
2. opens the file abc.txt for reading
3. contains an error, so won't compile
4. opens the file abc.txt for appending

✅ Correct Answer: 2

When you create a variable, you may assume it starts off containing:

1. 1
2. You may not make any assumption
3. The boolean value "false"
4. A null string (or 0 arithmetically)

✅ Correct Answer: 4

Which brackets do you use to change the order of precedence of operations?

1. Curly braces
2. Square brackets
3. Round brackets
4. You don't use brackets in Perl - you write in RPN (Reverse Polish Notation)

✅ Correct Answer: 3

Which of the following tests if the string held in $qn includes the word "perl"?

1. if ($qn =~ /perl/) .....
2. if ($qn == "perl") ....
3. if ($qn = "perl") .....
4. if ($qn eq "perl") .....

✅ Correct Answer: 2

Which of these is NOT available for Perl:

1. Perl, legally, for free
2. Individual and site licenses
3. Full documentation of the language which you can print out yourself
4. A Carribean cruise in 2006 on which you can meet some of the Perl gurus.

✅ Correct Answer: 3

Perl was first released in:

1. 1978
2. 1998
3. Perl hasn't yet been released
4. 1988

✅ Correct Answer: 4

What will be printed by the code below? 58% on 4261 times asked my $val = 'x'; print ref($val);

1. SCALAR
2. empty value
3. STRING
4. "not a reference"

✅ Correct Answer: 2

What is a file handle used for?

1. Reading binary data from a file into a scalar variable
2. Finding where a file is on the disc
3. Accessing a disc file or other input/output stream
4. Deleting, moving or renaming a file

✅ Correct Answer: 1

The "%" operator returns:

1. The larger of two numbers e.g. 200 % 20 would return 200
2. A percentage of a number e.g. 200 % 20 would return 40
3. The remainder when one number is divided by another
4. The remainder when one number is divided by another e.g. 18 % 7 would return 5

✅ Correct Answer: 3

What is Perl?

1. Practical Extraction and Report Language
2. Practice for Exclusive and Report Language
3. Practical Extraction and Report Learning
4. Practical Exclusive and Report Language

✅ Correct Answer: 1

. The $_ variable

1. holds the last pattern matched.
2. holds the output field separator.
3. identifies the current command line argument.
4. none of the above is correct.

✅ Correct Answer: 4

The value of the expression $yards += 10

1. is 10.
2. is true.
3. cannot be determined from the information given.
4. relies on which command line arguments were used.

✅ Correct Answer: 3

$x = @y[2 .. 4] assigns$x the third, fourth and fifth elements of the y array concatenated together.

1. assigns$y[4] to $x.
2. assigns$y[2] to $x.
3. assigns 3 to$x.
4. @a = split(/s/, $str).

✅ Correct Answer: 2

Which of the following commands will turn a scalar ($str)into an array of characters?

1. @a = split($str).
2. @a = split(/s/, $str).
3. This task can be done in Perl but none of the above commands do it.
4. assigns 3 to$x.

✅ Correct Answer: 3

<ARGV>

1. more than one of the above is correct.
2. identifies any command line arguments starting with a-.
3. will read the standard input if no arguments are listed on the command line.
4. can be used to read each line in every file name listed on the command line.

✅ Correct Answer: 1

In Perl, a/n ________ is a special character or a sequence that will define the number of times the previous character or sequence appears.

1. character class
2. metacharacter
3. assertion
4. quantifier

✅ Correct Answer: 4

In Perl, the following will result in which of the following, if the prize is currently "5 dollars" print 'You won $prize';

1. You won $5.00
2. You won 5 dollars
3. You won $prize
4. You won $5

✅ Correct Answer: 3

In Perl, which of the following are file handles?

1. stdquit
2. stdend
3. stdin
4. stdout

✅ Correct Answer: 3

In Perl, which switch is used for printing out warnings about typographical errors in your script?

1. -P
2. -W
3. -p
4. -w

✅ Correct Answer: 4

In Perl, "stat" returns a thirteen element array with which of the following values?

1. Perl version ID
2. Web server ID
3. Last access
4. Inode number

✅ Correct Answer: 3

CGI is a programming language.

1. True
2. False
3. all of the above
4. none of the above

✅ Correct Answer: 1

In Perl, scalar variables always begin with a ________ sign.

1. #
2. @
3. %
4. $

✅ Correct Answer: 4

What will be printed by the code below? my $val = {}; print ref($val);

1. empty value
2. ARRAY
3. HASH
4. Scalar

✅ Correct Answer: 3

. What will be printed by the code below? my @a = (0, 1, 2); my $b = @a; print $b;

1. 0
2. 1
3. 2
4. 3

✅ Correct Answer: 4

What output will be generated by this statement: print("Hello world This is Perl ");?

1. Hello world This is Perl
2. Hello world This is Perl
3. Hello World This is Perl
4. Hello world This is Perl

✅ Correct Answer: 3

What is the result of this script: $a = "This is Perl"; $b="This is Perl "; chomp($a); chomp($b);?

1. $a contains "This is Perl"; $b contains "This is Perl "
2. $a contains "This is Per"; $b contains "This is Perl "
3. $a contains "This is Perl"; $b contains "This is Perl"
4. $a contains "This is Perl "; $b contains "This is Perl "

✅ Correct Answer: 1

What will be the value in the variable $a after these two statements: $a = "Hello"; $a = "world";?

1. "Hello world"
2. "Helloworld"
3. "Hello"
4. "world"

✅ Correct Answer: 4

I want to write an appointment manager program for Microsoft Windows users. It must have a GUI, it must be very fast, and it depends on special GUI features found on only Microsoft Windows. What is the best language for the job?

1. Perl
2. Java
3. C++
4. Java, Perl, and C++ are equally good for the job.

✅ Correct Answer: 3

There is another popular scripting language called Python. Like Perl, it reads and runs scripts in one step instead of compiling them ahead of time. What would I need on my computer to use Python?

1. A Python compiler
2. A Python editor
3. A Python virtual machine
4. A Python interpreter

✅ Correct Answer: 4

Who designed and developed Perl?

1. Larry Wall
2. Guido van Rossum
3. Ross Ihaka
4. Martin Odersky

✅ Correct Answer: 1

Which are the permitted file extensions of perl?

1. .pl,.p
2. .t,.p
3. .pl, .pm
4. .pl,.perl

✅ Correct Answer: 3

PONIE is an acronym for?

1. Perl Of New Information Engine
2. Perl Of Next Information Engineering
3. Perl On Next Internal Engine
4. Perl On New Internal Engine

✅ Correct Answer: 4

Which symbol is owned by the Perl Foundation?

1. Elephant
2. Onion
3. Parrot
4. Turnip

✅ Correct Answer: 2

Which among the following statements are true with respect to Perl? S1: Perl is procedural in nature S2: Perl do automatic data-typing S3: All variables are marked with leading sigils

1. S1 and S2
2. S2 and S3
3. S1 and S3
4. S1,S2 and S3

✅ Correct Answer: 4

Which keyword can be used instead of print to have the carriage return added automatically? (v5.10 or higher)

1. println
2. $print
3. say
4. out

✅ Correct Answer: 3

Which option can be used to use perl on the command line?

1. $ perl -e
2. $ perl -i
3. $ perl -p
4. $ perl -r

✅ Correct Answer: 1

How are single-line commented in Perl?

1. ! Comment goes here
2. <-- Comment goes here -->
3. # Comment goes here
4. // Comment goes here

✅ Correct Answer: 3

How are multi-line commented in Perl?

1. !
2. =
3. /*
4. #

✅ Correct Answer: 2

Which statement enables Plain Old Documentation?

1. =cut
2. =doc
3. =pod
4. =end

✅ Correct Answer: 1

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