1. Consider the language I-(All strings of odd length) over the input alphabet {a, b). Which of the following is the correct regular expression for the language I? a) ((a+b)a(a+b))*+((a+b)b(a+b))* b) a(a+b)* (a+b)*+b(a+b) *(a+b)* c) a(a+b)(a+b))*+b((a+b)(a+b))* d) None of the above 2. What is the output of the following code? import java.util.*; class Main { public static void main(String args []) { ArrayList mylist = new ArrayList (); mylist.add("C"); mylist. add("H"); ArrayList mylist2 = new Arraylist (); mylist2.add("C"); mylist2.add(1, "H"); System.out.printin(mylist.equals (mylist2)); } a. 0 B. false c. true d. 1 3. Which statement is true about fourth normal form? Answer Choices: a. Every determinant must be a candidate key. b. There should not be any transitive dependency. c. There should not be any partial dependency. d. There should not be any multi-valued dependency. 4. What is the output of the following C program? #include int main () { printf ("8d", sizeof (2.7f)); return 0; a) 4 b) 8 c) 2 d. Compilation error 5. Which of the following statements) is/are true about the // operator in python: 1. It always returns an integer value 2. It performs floor division. (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
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1. Consider the language I-(All strings of odd length) over the input alphabet {a, b).
Which of the following is the correct regular expression for the language I?
a) ((a+b)a(a+b))*+((a+b)b(a+b))*
b) a(a+b)* (a+b)*+b(a+b) *(a+b)*
c) a(a+b)(a+b))*+b((a+b)(a+b))*
d) None of the above
2. What is the output of the following code?
import java.util.*;
class Main
{
public static void main(String args [])
{
ArrayList mylist = new ArrayList ();
mylist.add("C");
mylist. add("H");
ArrayList mylist2 = new Arraylist ();
mylist2.add("C");
mylist2.add(1, "H");
System.out.printin(mylist.equals (mylist2));
}
a. 0
B. false
c. true
d. 1
3. Which statement is true about fourth normal form?
Answer Choices:
a. Every determinant must be a candidate key.
b. There should not be any transitive dependency.
c. There should not be any partial dependency.
d. There should not be any multi-valued dependency.
4. What is the output of the following C program?
#include<stdio.h>
int main ()
{
printf ("8d", sizeof (2.7f));
return 0;
a) 4
b) 8
c) 2
d. Compilation error
5. Which of the following statements) is/are true about the // operator in python:
1. It always returns an integer value
2. It performs floor division.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
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