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Hash Tables with Quadratic Probing MCQs

1. Which of the following is the correct function definition for quadratic probing?

a) F(i)=i2

b) F(i)=i

c) F(i)=i+1

d) F(i)=i2+1

Answer: F(i)=i2

2. How many constraints are to be met to successfully implement quadratic probing?

a) 1

b) 2

c) 3

d) 4

Answer: 2

3. Which among the following is the best technique to handle collision?

a) Quadratic probing

b) Linear probing

c) Double hashing

d) Separate chaining

Answer: Quadratic probing

4. Which of the following techniques offer better cache performance?

a) Quadratic probing

b) Linear probing

c) Double hashing

d) Rehashing

Answer: Linear probing

5. What is the formula used in quadratic probing?

a) Hash key = key mod table size

b) Hash key=(hash(x)+F(i)) mod table size

c) Hash key=(hash(x)+F(i2)) mod table size

d) H(x) = x mod 17

Answer: Hash key=(hash(x)+F(i2)) mod table size

6. Which of the following schemes does quadratic probing come under?

a) rehashing

b) extended hashing

c) separate chaining

d) open addressing

Answer: open addressing

7. Quadratic probing overcomes primary collision.

a) True

b) False

Answer: True

8. What kind of deletion is implemented by hashing using open addressing?

a) active deletion

b) standard deletion

c) lazy deletion

d) no deletion

Answer: lazy deletion

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