CAT Practice Question and Answer

Q: Which of the following data structure is linear type? 17508 0

  • 1
    Tree
    Correct
    Wrong
  • 2
    Binary Tree
    Correct
    Wrong
  • 3
    Queue
    Correct
    Wrong
  • 4
    Graph
    Correct
    Wrong
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Answer : 3. "Queue"
Explanation :

Answer: C) Queue Explanation: A data structure is a specialized format for organizing and storing data. General data structure types include the array, the file, the record, the table, the tree, and so on. Any data structure is designed to organize data to suit a specific purpose so that it can be accessed and worked with in appropriate ways.   Linear data structure: A linear data structure traverses the data elements sequentially, in which only one data element can directly be reached. Ex: Arrays, Linked Lists, Stack, Queue, Any type of List all are linear.   Trees like Binary Tree, B Tree or B+ Tree are examples of non linear data structure.

Q: The Basic Architecture of Computer was developed by 17214 0

  • 1
    Charles Babbage
    Correct
    Wrong
  • 2
    Blaise Pascal
    Correct
    Wrong
  • 3
    Garden Moore
    Correct
    Wrong
  • 4
    John Von Neumann
    Correct
    Wrong
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Answer : 4. "John Von Neumann"
Explanation :

Answer: D) John Von Neumann Explanation: Computer Architecture refers to how a computer system is designed and what technologies it is compatible with. In brief, Computer architecture is a specification detailing how a set of software and hardware technology standards interact to form a computer system or platform.                                          The Von Neumann Architecture, which is also known as the Von Neumann Model and Princeton architecture, is a computer architecture based on the 1945 description of computer by the mathematician and physicist John von Neumann.

Q: If the LCM and HCF of two numbers are equal, then the numbers must be 17117 0

  • 1
    Prime Numbers
    Correct
    Wrong
  • 2
    Composite Numbers
    Correct
    Wrong
  • 3
    Equal
    Correct
    Wrong
  • 4
    Co- prime Numbers
    Correct
    Wrong
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Answer : 3. "Equal"
Explanation :

Answer: C) Equal Explanation: If LCM = HCF then, the two numbers are equal.

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Answer :
Explanation :

1. Answer (b) Santosh , Ujjwal and Varun must each receive at least three pieces, but Tarun must receive at least four pieces. The maximum number of pieces that any person may receive is six ( 6 + 3+ 3+3 = 15 ), and only Tarun may receive six pieces. Ujjwal and Varun each may receive as many as five pieces, while Santosh may receive only four pieces at maximum.At least one pear.   2. Answer (c) Varun may receive no more than five pieces and Tarun may receive no fewer than four pieces. As a result, if Varun receives more pieces than Tarun, then Varun must receive five pieces, and Tarun must receive four pieces. Thus, statement (a) must be true. Since Varun will receive five pieces, none of the other three friends will receive any apple, accordingly, each of the other three friends must receive at least one orange and at least one pear. Thus, statement (b) and (d) must be true.

Q: Which is a common first indicator of an approaching thunderstorm? 16434 0

  • 1
    too hot
    Correct
    Wrong
  • 2
    heavy wind
    Correct
    Wrong
  • 3
    a buildup of dark clouds
    Correct
    Wrong
  • 4
    lightning
    Correct
    Wrong
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Answer : 3. "a buildup of dark clouds"
Explanation :

Answer: C) a buildup of dark clouds Explanation: The first indicator of an approaching thunderstorm is a buildup of dark clouds. A thunderstorm is a storm with lightning and thunder; it is usually produced by heavy rain, gusty wind, and the cumulonimbus cloud. The thunderstorm is made up of moisture, unstable air and lift.

Q: In 16 minutes, the minute hand gains over the hour hand by - 15479 0

  • 1
    16 deg
    Correct
    Wrong
  • 2
    80 deg
    Correct
    Wrong
  • 3
    88 deg
    Correct
    Wrong
  • 4
    94 deg
    Correct
    Wrong
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Answer : 3. "88 deg"
Explanation :

Answer: C) 88 deg Explanation: In one hour, the minute hand gains 330° over the hour hand. i.e., 60 minute, the minute hand gains 330° over the hour hand. ∴ In 16 minutes, the minute hand gain over the hour hand by

Q: Which of the following is the fastest communication channel? 14888 0

  • 1
    Microwave
    Correct
    Wrong
  • 2
    Optical fiber
    Correct
    Wrong
  • 3
    Radio wave
    Correct
    Wrong
  • 4
    All are operating at nearly the same propagation speed
    Correct
    Wrong
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Answer : 1. "Microwave"
Explanation :

Answer: A) Microwave Explanation: A microwave is the fastest communication channel whereas Optical fiber is a way of transferring data not a way of communication.

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Answer : 4. "321"
Explanation :

Answer: D) 321 Explanation: No. of people who read Hindu = 285No. of people who read TOI = 127No. of people who read IE = 212Now, No. of people who read Hindu and TOI both is = 20No. of people who read TOI and IE both is = 35No. of people who read Hindu and IE both is = 29Let No. of people who read Hindu , TOI and IE all is = x ;So, only Hindu is = 285-20-29-x = 236-x ;Only TOI is = 127-20-35-x = 72-x ;Only IE is = 212-35-29-x = 148-x ;Now, 236-x + 72-x + 148-x + 20 + 29 + 35 + x + 50 = 500 590 -2x = 500 So, x = 45 this is the value who read all the 3 dailies.So, No. of people who read only one paper is = 236-45 + 72-45 + 148-45 = 191 + 27 + 103 = 321.

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