Cognizant Stacks & Queues Quiz

June 23, 2019

Question 1

Time: 00:00:00
Which of the following is the correct postfix format for this infix format  A + B – C + D

-+DC+BA

-+DC+BA

AB+CD+-

AB+CD+-

+BA-+CD

+BA-+CD

None of these

None of these

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Question 2

Time: 00:00:00
Match the following -
Group A             Group B

A. Stacks           1. Matrix Multiplication

B. Queue            2. Fastest Search

C. Arrays           3. FIFO

D. Trees            4. LIFO

A1, B3, C4, D2

A1, B3, C4, D2

A4, B3, C1, D2

A4, B3, C1, D2

A4, B3, C2, D1

A4, B3, C2, D1

A1, B3, C2, D4

A1, B3, C2, D4

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Question 3

Time: 00:00:00
Priya has a box that looks like a stack and she does the following operations on empty box

  • PUSH(8)

  • PUSH(7)

  • POP

  • PUSH(1)

  • PUSH(3)

31_8

31_8

8_1_7

8_1_7

8_1_

8_1_

None of these

None of these

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answer should be 318

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Question 4

Time: 00:00:00
Cloe has x number of stacks her father wants her to write a program that can perform as a queue. What will you suggest to her how many stacks must she use?

1

1

2

2

4

4

3

3

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Question 5

Time: 00:00:00
Shalaka wants to implement a priority queue using stacks. What is the minimum number of stacks that she needs to be able to write a code for this

1

1

2

2

3

3

4

4

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Question 6

Time: 00:00:00
These operations can be performed on which type of structure?

Push, Pop, Peek

Queue

Queue

Priority Queue

Priority Queue

Stack

Stack

Both 1 and 2

Both 1 and 2

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Question 7

Time: 00:00:00
Which one of the following is an application of Queue Data Structure?

When a resource is shared among multiple consumers.

When a resource is shared among multiple consumers.

When data is transferred asynchronously (data not necessarily received at same rate as sent) between two processes

When data is transferred asynchronously (data not necessarily received at same rate as sent) between two processes

Load Balancing

Load Balancing

All the above

All the above

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Question 8

Time: 00:00:00
The retrieval of items in a stack is ……….. operation.

 

push

push

pop

pop

retrieval

retrieval

access

access

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Question 9

Time: 00:00:00
In a queue, the initial values of front pointer f rare pointer r should be …….. and ……….. respectively.

-1, -1

-1, -1

0, -1

0, -1

0, 0

0, 0

-1, 0

-1, 0

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Question 10

Time: 00:00:00
When new data are to be inserted into a data structure, but there is not available space; this situation is usually called .......

Memory Leak

Memory Leak

Memory Full

Memory Full

OverLeak

OverLeak

Overflow

Overflow

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["0","40","60","80","100"]
["Need more practice! \r\n \r\n","Keep trying! \r\n \r\n","Not bad! \r\n \r\n","Good work! \r\n \r\n","Perfect! \r\n \r\n"]
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