3i Infotech Placement: Sample Questions 407 - 409 of 1245

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Question 407

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Write in Short

Short Answer▾

Three cards are drawn at random from an ordinary pack of cards. Find the probability that they will consist of a king, a queen and an ace.

Explanation

Three cards are drawn at random from a pack of 52 cards.

So, probability of sample space,

We are asked to find the probability that card will be a king, a queen and an ace.

We know that there are total 4 kings, 4 queens and 4 aces in the pack of 52 cards.

So, probability of event,

So, probability of getting a king, a queen and an ace

Question 408

Question

MCQ▾

For MB memory, the number of address lines required is?

Choices

Choice (4)

a.

24

b.

22

c.

11

d.

20

Answer

d.

Explanation

  • is memory in bytes accessible using n lines (for byte addressable memory)
  • In the questions bytes

  • So, the number of address line required is .

Question 409

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Describe in Detail

Essay▾

What is a JAR file?

Explanation

Understanding of JAR File
  • “JAR” stands for java Archive.
  • It is a file format based on the popular ZIP file format and used for aggregating many files into one.
  • A JAR file is contains compressed version of class files, audio file, image files- as an aggregation of resources into a single, compressed file.

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