3i Infotech Placement: Sample Questions 1241 - 1242 of 1245

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Question 1241


Write in Short

Short Answer▾

There are 5 red shoes, 4 green shoes. If one draw randomly a shoe what is the probability of getting a red shoe?


There are 5 red shoes and 4 green shoes.

We are asked to find the probability of drawing a red shoe.

Probability of one ball out of 9 shoes = 9C1

Probability of one ball out of 5 red shoes = 5C1

So, probability of one red shoe gets selected

Question 1242



In a CLIENT/SERVER environment, which of the following would not be done at the client?


Choice (4)


Responding to user events.


User interface part


Data validation at entry line


None of the above




Understanding of Client-Server Application
  • In the oracle database environment, the database application and the database are divided into client-server architecture.
    • The client runs the database application, for ex, SQL ⚹ Plus basic data entry program, that accesses database information and interacts with a user.
    • The server runs the oracle database software and shared data access to an oracle database
  • The client application and database can run on the same compute- however greater efficiency is achieved when the client portions and server portion are run by different computers.

Oracle client-server architecture provide following benefits:

  • Client applications are not responsible for performing data processing. The server present data using display capability of client.
  • The shared memory and multitasking facilities of its operating system.
  • Client application is not dependent on the physical location of data.
  • In networked environments, we can use client workstations to access the server effectively.

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