NEILIT Exam questions

Question

1) which of the following statements is/are true in context of interpreters ?

$S_1.$  interpreters process program according to the logical flow of control through program.

$S_2.$ Interpreter translate and executes the error free first instruction before it goes the second

$S_3.$ Interpreter processing time is less compared to compiler

$S_4.$   LISP and prolog are interpreted languages.

• A. only $S_1$
• B. only $S_3$
• C. only $S_1,S_2 \hspace{0.1cm} and \hspace{0.1cm} S_3$
• D. only $S_1,S_2$ and $S_4$
   

[2].  If the number of networks and number of hosts in class $B$ are $2^m$ , $( 2^n  -  2)$ respectively.then the relation between $m$  & $n$ is

• A. $3m= 2n$
• B. $7m = 8n$
• C. $8m = 7n$
• D. $2m = 3n$

Answer 1

1)

$S_1 :$ Interpreters process program according to the logical flow of control through the program. $TRUE$

$ S_2: $ Interpreter translates and executes the error-free first instruction before it goes the second. $TRUE$

              Interpreter goes line-by-line of the program & executes line by line.

$S_3 :$  Interpreter processing time is less compared to the compiler. $FALSE$

                Compiler processing times is less than the Interpreter because Compiler scans and translates the whole program at a time.

$S_4:$ LISP and prolog are interpreted languages. $TRUE$

So, $\color{Maroon}{S_1,S_2,S_4}$ $\color{Maroon}{\text{ are True.}}$

∴ $\color{Green}{\text{Option D) will be the right option.}}$

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2)

We know that number of networks possible in Class B is = $2^{14}$

& Number of hosts possible in each network in class B is = $2^{16}-2$

Given that, Number of networks in class B are $2^{m}$ & number of hosts are $2^{n}-2$

∴ We can conclude that,

$2^m = 2^{14}$

Or, $m = 14$

& $2^n - 2 = 2^{16}-2$

Or, $n =16$

Now, option A) says that $3m=2n$; But $3 \times 14 \neq 2 \times 16$

option B) says that $7m = 8n$; But $7 \times 14 \neq 8 \times 16$

option C) says that $8m = 7n$; And $8 \times 14 = 7 \times 16$

option D) says that $2m = 3n$; But $2 \times 14 \neq 3 \times 16$

∴ $\color{Blue}{\text{Option C) 8m= 7n is the correct answer}}$