Free Practice Questions for Competitive Exams, Interviews, Certifications

Q:

One of the best preserved Buddhist caves, Karla, is in which of the following states?

A) Bihar	B) Uttar Pradesh
C) Maharashtra	D) Uttarakhand

Answer & Explanation Answer: C) Maharashtra

Explanation:

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Filed Under: Indian Geography
Exam Prep: Bank Exams

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Q:

I don't want my class to be inherited by any other class. What should i do?

Answer

You should declared your class as final. But you can't define your class as final, if it is an abstract class. A class declared as final can't be extended by any other class.

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Subject: Java

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Q:

Formation of curd from milk is chemical reaction.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

The process of conversion of milk into curd is called fermentation. It is a chemical change. Milk consists of globular proteins called casein. As the microorganism lactobacillus react with milk and turn it to curd. For it 37 degree temperature is needed. But sometimes when it does not get favourable condition, then other microorganism react and makes the curd taste different.

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Subject: Chemistry
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

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Q:

What is QUIESCE?

Answer

A QUIESCE flushes all DB2 buffers on to the disk. This gives a correct snapshot of the database and should be used before and after any IMAGECOPY to maintain consistency.

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Subject: Mainframe Interview

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Q:

What of the following describes protected access specifier?

A) The variable is visible only outside inside the block	B) The variable is visible everywhere
C) The variable is visible to its block and to it’s derived class	D) None of these

Answer & Explanation Answer: C) The variable is visible to its block and to it’s derived class

Explanation:

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Filed Under: C++

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Q:

HZF, IWH, KSJ, NNL, ?

A) THN	B) RGM
C) SHM	D) RHN

Answer & Explanation Answer: D) RHN

Explanation:

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Filed Under: Logical Sequence of Words

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Q:

Consider 5 independent Bernoulli’s trials each with probability of success p. If the probability of at least one failure is greater than or equal to 31/32 , then p lies in the interval ?

A) [1, 32]	B) (0, 1)
C) [1, 1/2]	D) (1, 1/2]

Answer & Explanation Answer: C) [1, 1/2]

Explanation:

Probability of atleast one failure
= 1 - no failure > 31/32
= 1 - $P^{5}$ > 31/32
= $P^{5} <$ 1/32
= p < 1/2
Also p > 0
Hence p lies in [0,1/2].

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Filed Under: Probability
Exam Prep: CAT , AIEEE
Job Role: Bank Clerk

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Q:

A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red?

A) 2/3	B) 1/8
C) 3/8	D) 3/4

Answer & Explanation Answer: A) 2/3

Explanation:

Given number of balls = 3 + 5 + 7 = 15

One ball is drawn randomly = 15C1

probability that it is either pink or red = $\frac{7 C_{1} + 3 C_{1}}{15 C_{1}} = \frac{7 + 3}{15} = \frac{10}{15} = \frac{2}{3}$

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Filed Under: Probability
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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