Explore topic-wise MCQs in General Awareness.

This section includes 1698 Mcqs, each offering curated multiple-choice questions to sharpen your General Awareness knowledge and support exam preparation. Choose a topic below to get started.

151.

Statement in BASIC language 150 IF A1=A2 THEN ComparisonINR = EQUAL is an example of

A. If then statement
B. If else statement
C. Else one statement
D. Then else statement
Answer» B. If else statement
Discussion
152.

Task of the lexical analysis phase is

A. To parse the source program into basic elements or tockens of the language
B. To build a literal literal table and an identifier table
C. To build a uniform symbol table
D. All of these
Answer» A. To parse the source program into basic elements or tockens of the language
Discussion
153.

Which is a permanent database in the general model of compiler

A. Literal table
B. Identifier table
C. Terminal table
D. Source code
Answer» D. Source code
Discussion
154.

Which table is a permanent databases that has an entry for each terminal symbol ?

A. Terminal table
B. Literal table
C. Identifier table
D. Reductions
Answer» B. Literal table
Discussion
155.

The output of lexical analyser is

A. A set of regular expressions
B. Syntax tree
C. Set of tokens
D. Strings of characters
Answer» D. Strings of characters
Discussion
156.

Machine independent phase of the compiler is

A. Syntax analysis
B. Lexical analysis
C. Intermediate code generation
D. All of these
Answer» E.
Discussion
157.

Which of the following is used for grouping of characteristics into tokens ?

A. Parser
B. Code optimization
C. Code generator
D. Lexical analyser
Answer» E.
Discussion
158.

which of the following grammer is LR(1) ?

a)A->aAa
A->bAb
A->a
A->b

b)A->aAa
A->aAb
A->c

c)A->A+A
A->a

d)both a and b

A. A
B. B
C. C
D. D
Answer» C. C
Discussion
159.

Which of the following parser is the most powerful ?

A. Operator precedence
B. Canonical LR
C. LALR
D. SLR
Answer» C. LALR
Discussion
160.

A parser with valid prefix property is advantageous because it

A. Detects error as soon as possible
B. Detects errors as and when they occur
C. Limits the amount of erroneous output passed to the next phase
D. All of these
Answer» D. All of these
Discussion
161.

Back-patching is useful for handling

A. Conditional jumps
B. Unconditional jumps
C. Backward reference
D. Forward references
Answer» E.
Discussion
162.

Access time of the symbol table will be logarithmic,if it is implemented by

A. Linear list
B. Search tree
C. Hash table
D. Self-organizing list
Answer» C. Hash table
Discussion
163.

A shift reduce parser carries out the actions specified within braces immediately after reducing,with
the corresponding rule of the grammar

s->xxW{print 1 }
s->y{print 2 }
w->sz{print 3 }

what is the translation of xxxxyzz ?

A. 11231
B. 11233
C. 23131
D. 233321
Answer» D. 233321
Discussion
164.

which of the following cannot be used an an intermediate code form ?

A. Post fix notation
B. Three address codes
C. Syntax trees
D. Quadraples
Answer» E.
Discussion
165.

It has encoded within it information on the possible sequences of characters that can be contained within any of the tokens it handles.
Above motioned function is performed by?

A. Scanner
B. Parser
C. Syntactic Analyser
D. All of the mentioned
Answer» B. Parser
Discussion
166.

Which one is a lexer Generator ?

A. ANTLR
B. DRASTAR
C. FLEX
D. All of the mentioned
Answer» E.
Discussion
167.

Which of the lexical analyser can handle Unicode ?

A. Java CC
B. JFLex
C. Quex
D. All of the mentioned
Answer» E.
Discussion
168.

Which phase of compiler is Syntax Analysis ?

A. First
B. Second
C. Third
D. None of the mentioned
Answer» C. Third
Discussion
169.

Syntax Analyser also known as

A. Hierarchical Analysis
B. Hierarchical Parsing
C. None of the mentioned
D. Both of the mentioned
Answer» E.
Discussion
170.

syntax analyzer or parser takes the input from a ______________.

A. Lexical analyser
B. Syntactic Analyser
C. Semantic Analyser
D. None of the mentioned
Answer» B. Syntactic Analyser
Discussion
171.

Output file of Lex is _____ , if the input file is Myfile.

A. Myfile.e
B. Myfile.yy.c
C. Myfile.lex
D. Myfile.obj
Answer» C. Myfile.lex
Discussion
172.

If E be a shifting operation applied to a function f, such that E(f) = f (x + ), then

A. E ( f + g )= E (f+g )
B. E ( f + g )= E (f + g)
C. E ( f+ g) = E(f) + E (g)
D. E ( f + g )=. ( + )+ E (f + g)
Answer» D. E ( f + g )=. ( + )+ E (f + g)
Discussion
173.

What will be the output of the following PHP code? 
 <?php $a1 = array_fill(3, 4, "blue"); $b1 = array_fill(0, 1, "red"); print_r($a1); echo "
"; print_r($b1); ?>

A. Array ( [3] =&gt; blue [4] =&gt; blue)
B. Array ( [4] =&gt; blue [5] =&gt; blue [6] =&gt; blue)
C. Array ( [3] =&gt; blue [4] =&gt; blue [5] =&gt; blue [6] =&gt; blue )
D. Array ( [3] =&gt; blue [4] =&gt; blue [5] =&gt; blue [6] =&gt; blue )
Answer» E.
Discussion
174.

What will be the output of the following PHP code? 
 <?php $a1 = array("red", "green"); $a2 = array("blue", "yellow"); print_r(array_merge($a1, $a2)); ?>

A. Array ( [0] =&gt; red [1] =&gt; green)
B. Array ( [0] =&gt; blue [1] =&gt; yellow [2] =&gt; red [3] =&gt; green )
C. Array ( [0] =&gt; red [1] =&gt; green [2] =&gt; blue [3] =&gt; yellow )
D. Array ( [0] =&gt; blue [1] =&gt; yellow )
Answer» D. Array ( [0] =&gt; blue [1] =&gt; yellow )
Discussion
175.

What will be the output of the following PHP code? 
 <?php $a = array("a"=>"red", "b"=>"green", "c"=>"blue"); echo array_shift($a); print_r ($a); ?>

A. Green
B. Red
C. Blue
D. None of the mentioned
Answer» C. Blue
Discussion
176.

What will be the output of the following PHP code? 
 <?php $a = array("red", "green", "blue"); array_pop($a); print_r($a); ?>

A. Array ( [0] =&gt; red [1] =&gt; green )
B. Array ( [0] =&gt; green [1] =&gt; blue )
C. Array ( [0] =&gt; red [1] =&gt; blue )
D. Array ( [0] =&gt; blue [1] =&gt; blue )
Answer» B. Array ( [0] =&gt; green [1] =&gt; blue )
Discussion
177.

What will be the output of the following PHP code? 
 <?php $fruits = array ("mango", "apple", "pear", "peach"); $fruits = array_flip($fruits); echo ($fruits[0]); ?>

A. Mango
B. Error
C. Peach
D. 0
Answer» C. Peach
Discussion
178.

What will be the output of the following PHP code? 
 <?php $fruits = array ("mango", "apple", "peach", "pear"); $fruits = asort ($fruits); printr ($fruits); ?>

A. Array ( [1] =&gt; apple [0] =&gt; mango [2] =&gt; peach [3] =&gt; pear )
B. Array ( [0] =&gt; apple [1] =&gt; mango [2] =&gt; peach [3] =&gt; pear )
C. Error
D. Array ( [1] =&gt; apple [0] =&gt; mango [3] =&gt; peach [2] =&gt; pear )
Answer» B. Array ( [0] =&gt; apple [1] =&gt; mango [2] =&gt; peach [3] =&gt; pear )
Discussion
179.

What will be the output of the following PHP code? 
 <?php $arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg"); sort($arr); print_r($arr); ?>

A. Array ( [0] =&gt; picture1.JPG [1] =&gt; Picture10.jpg [2] =&gt; picture2.jpg [3] =&gt; picture20.jpg )
B. Array ( [0] =&gt; picture1.JPG [1] =&gt; picture2.jpg [2] =&gt; Picture10.jpg [3] =&gt; picture20.jpg )
C. Array ( [0] =&gt; Picture10.jpg [1] =&gt; picture1.JPG [2] =&gt; picture2.jpg [3] =&gt; picture20.jpg )
D. Array ( [0] =&gt; Picture10.jpg [1] =&gt; picture1.JPG [2] =&gt; picture20.jpg [3] =&gt; picture2.jpg )
Answer» D. Array ( [0] =&gt; Picture10.jpg [1] =&gt; picture1.JPG [2] =&gt; picture20.jpg [3] =&gt; picture2.jpg )
Discussion
180.

What will be the output of the following PHP code? 
 <?php $face = array ("A", "J", "Q", "K"); $number = array ("2","3","4", "5", "6", "7", "8", "9", "10"); $cards = array_merge ($face, $number); print_r ($cards); ?>

A. Array ( [0] =&gt; A [1] =&gt; J [2] =&gt; Q [3] =&gt; K [4] =&gt; 2 [5] =&gt; 3 [6] =&gt; 4 [7] =&gt; 5 [8] =&gt; 6 [9] =&gt; 7 [10] =&gt; 8 [11] =&gt; 9 [12] =&gt; 10 )
B. Array ( [0] =&gt; A [1] =&gt; 2 [2] =&gt; J [3] =&gt; 3 [4] =&gt; Q [5] =&gt; 4 [6] =&gt; K [7] =&gt; 5 [8] =&gt; 6 [9] =&gt; 7 [10] =&gt; 8 [11] =&gt; 9 [12] =&gt; 10 )
C. Error
D. Array ( [0] =&gt; 2 [1] =&gt; 3 [2] =&gt; 4 [3] =&gt; 5 [4] =&gt; 6 [5] =&gt; 7 [6] =&gt; 8 [7] =&gt; 9 [8] =&gt; 10 [9] =&gt; A [10] =&gt; J [11] =&gt; Q [12] =&gt; K )
Answer» B. Array ( [0] =&gt; A [1] =&gt; 2 [2] =&gt; J [3] =&gt; 3 [4] =&gt; Q [5] =&gt; 4 [6] =&gt; K [7] =&gt; 5 [8] =&gt; 6 [9] =&gt; 7 [10] =&gt; 8 [11] =&gt; 9 [12] =&gt; 10 )
Discussion
181.

What will be the output of the following PHP code? 
 <?php $fruits = array ("apple", "mango", "peach", "pear", "orange"); $subset = array_slice ($fruits, 2); print_r ($subset); ?>

A. Array ( [0] =&gt; peach )
B. Array ( [0] =&gt; apple [1] =&gt; mango [2] =&gt; peach )
C. Array ( [0] =&gt; apple [1] =&gt; mango )
D. Array ( [0] =&gt; peach [1] =&gt; pear [2] =&gt; orange )
Answer» E.
Discussion
182.

What will be the output of the following PHP code? 
 <?php $fruits = array ("apple", "mango", "peach", "pear", "orange"); $subset = array_splice ($fruits, 2); print_r ($fruits); ?>

A. Error
B. Array ( [0] =&gt; apple [1] =&gt; mango [2] =&gt; peach )
C. Array ( [0] =&gt; apple [1] =&gt; mango )
D. Array ( [0] =&gt; pear [1] =&gt; orange )
Answer» D. Array ( [0] =&gt; pear [1] =&gt; orange )
Discussion
183.

What will be the output of the following PHP code? 
 <?php $number = array ("4", "hello", 2); echo (array_sum ($number)); ?>

A. 4hello2
B. 4
C. 2
D. 6
Answer» E.
Discussion
184.

What will be the output of the following PHP code? 
 <?php $array1 = array ("KA", "LA", "CA", "MA", "TA"); $array2 = array ("KA", "IA", "CA", "GA", "TA"); $inter = array_intersect ($array1, $array2); print_r ($inter); ?>

A. Array ( [0] =&gt; KA [1] =&gt; LA [2] =&gt; CA [3] =&gt; MA [4] =&gt; TA [5] =&gt; IA [6] =&gt; GA )
B. Array ( [0] =&gt; KA [2] =&gt; CA [4] =&gt; TA )
C. Array ( [1] =&gt; IA [3] =&gt; GA )
D. Array ( [1] =&gt; LA [3] =&gt; MA )
Answer» C. Array ( [1] =&gt; IA [3] =&gt; GA )
Discussion
185.

Which one of the following functions can be used to compress a string?

A. Zip_compress()
B. Zip()
C. Compress()
D. Gzcompress()
Answer» E.
Discussion
186.

What will be the output of the following PHP code? 
 <?php echo "chr(52)"; ?>

A. 106
B. 103
C. 104
D. 209
Answer» D. 209
Discussion
187.

What will be the output of the following PHP code? 
 <?php echo ucwords("i love my country"); ?>

A. I love my country
B. I love my Country
C. I love my Country
D. I Love My Country
Answer» E.
Discussion
188.

What will be the output of the following PHP code? 
 <?php echo lcfirst("welcome to America"); ?>

A. Welcome to America
B. Welcome to America
C. Welcome to America
D. Welcome to America
Answer» B. Welcome to America
Discussion
189.

Pi is aan

A. Trigonometry function
B. Exponential function
C. Base conversion function
D. None of them
Answer» B. Exponential function
Discussion
190.

$multi_array [1] [2] [3] [4] = I am working on PHP ; will create

A. One dimensional array
B. 5 dimensional array
C. 4 dimensional array
D. None of them
Answer» D. None of them
Discussion
191.

What will be the output of the following PHP code ? 
  <?php $age = array("Harry" => "21", "Ron" => "23","Malfoy" => "21"); array_change_key_case($age, CASE_UPPER); array_pop($age); print_r($age); ?>

A. Array ( [Harry] =&gt; 21 [Ron] =&gt; 23 [Malfoy] =&gt; 21 )
B. Array ( [HARRY] =&gt; 21 [RON] =&gt; 23 [MALFOY] =&gt; 21 )
C. Array ( [HARRY] =&gt; 21 [RON] =&gt; 23 )
D. Array ( [Harry] =&gt; 21 [Ron] =&gt; 23 )
Answer» D. Array ( [Harry] =&gt; 21 [Ron] =&gt; 23 )
Discussion
192.

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

A. Array ( [red] =&gt; red [green] =&gt; green [blue] =&gt; blue [yellow] =&gt; yellow )
B. Array ( [a] =&gt; a [b] =&gt; b [c] =&gt; c [d] =&gt; d )
C. Array ( [red] =&gt; a [green] =&gt; b [blue] =&gt; c [yellow] =&gt; d )
D. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue [d] =&gt; yellow )
Answer» D. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue [d] =&gt; yellow )
Discussion
193.

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"); $result = array_intersect($a1, $a2); print_r($result); ?>

A. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue )
B. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue [d] =&gt; yellow )
C. Array ( [e] =&gt; red [f] =&gt; green [g] =&gt; blue )
D. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue [d] =&gt; yellow [e] =&gt; red [f] =&gt; green [g] =&gt; blue )
Answer» B. Array ( [a] =&gt; red [b] =&gt; green [c] =&gt; blue [d] =&gt; yellow )
Discussion
194.

What will be the output of the following PHP code ? 
  <?php $a = array(12, 5, 2); echo(array_product($a)); ?>

A. 024
B. 120
C. 010
D. 060
Answer» C. 010
Discussion
195.

What will be the output of the following PHP code ? 
 <?php $a = array("a" => "Jaguar", "b" => "Land Rover", "c" => "Audi", "d" => "Maseratti"); echo array_search("Audi", $a); ?>

A. a
B. b
C. d
D. d
Answer» D. d
Discussion
196.

What will be the output of the following PHP code ? 
  <?php $city_west = array("NYC", "London"); $city_east = array("Mumbai", "Beijing"); print_r(array_replace($city_west, $city_east)); ?>

A. Array ( [1] =&gt; Mumbai [0] =&gt; Beijing )
B. Array ( [0] =&gt; NYC [1] =&gt; London )
C. Array ( [1] =&gt; NYC [0] =&gt; London )
D. Array ( [0] =&gt; Mumbai [1] =&gt; Beijing )
Answer» E.
Discussion
197.

What will be the output of the following PHP code ? 
  <?php $people = array("Peter", "Susan", "Edmund", "Lucy"); echo pos($people); ?>

A. Lucy
B. Peter
C. Susan
D. Edmund
Answer» C. Susan
Discussion
198.

What will be the output of the following PHP code ? 
  <?php $number = range(0, 5); print_r ($number); ?>

A. Array ( [0] =&gt; 0 [1] =&gt; 1 [2] =&gt; 2 [3] =&gt; 3 [4] =&gt; 4 [5] =&gt; 5 )
B. Array ( [0] =&gt; 0 [1] =&gt; 0 [2] =&gt; 0 [3] =&gt; 0 [4] =&gt; 0 [5] =&gt; 0 )
C. Array ( [0] =&gt; 5 [1] =&gt; 5 [2] =&gt; 5 [3] =&gt; 5 [4] =&gt; 5 [5] =&gt; 5 )
D. Array ( [0] =&gt; 0 [5] =&gt; 5 )
Answer» B. Array ( [0] =&gt; 0 [1] =&gt; 0 [2] =&gt; 0 [3] =&gt; 0 [4] =&gt; 0 [5] =&gt; 0 )
Discussion
199.

What will be the output of the following PHP code ? 
  <?php $array = array("red", "green"); array_push($array, "blue", "yellow"); print_r($array); ?>

A. Array ( [0] =&gt; red [1] =&gt; green [2] =&gt; blue [3] =&gt; yellow )
B. Array ( [0] =&gt; blue [1] =&gt; yellow [2] =&gt; red [3] =&gt; green )
C. Array ( [0] =&gt; red [1] =&gt; green )
D. Array ( [0] =&gt; blue [1] =&gt; yellow )
Answer» B. Array ( [0] =&gt; blue [1] =&gt; yellow [2] =&gt; red [3] =&gt; green )
Discussion
200.

What will be the output of the following PHP code? 
 <?php $age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43"); print_r(array_change_key_case($age, CASE_UPPER)); ?>

A. Array ( [Peter] =&gt; 35 [Ben] =&gt; 37 [Joe] =&gt; 43 )
B. Array ( [peter] =&gt; 35 [ben] =&gt; 37 [joe] =&gt; 43 )
C. Array ( [PETER] =&gt; 35 [BEN] =&gt; 37 [JOE] =&gt; 43 )
D. Array ( [PeTeR] =&gt; 35 [BeN] =&gt; 37 [Joe] =&gt; 43 )
Answer» D. Array ( [PeTeR] =&gt; 35 [BeN] =&gt; 37 [Joe] =&gt; 43 )
Discussion