Verifone Interview Questions and Answers

Q1. Criteria for selecting test cases for automation
Ans. 
Test cases for automation should be selected based on criteria such as frequency of execution, complexity, and criticality.
• Select test cases that are executed frequently to save time and effort.

• Choose test cases that are complex and require multiple steps to execute.

• Prioritize test cases that cover critical functionalities or high-risk areas.

• Consider test cases that involve integration between different systems or modu...read more
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Q2. Program to count number of repeating characters in a string
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This program counts the number of repeating characters in a given string.
• Iterate through each character in the string

• Use a hash map to store the count of each character

• If a character is already present in the hash map, increment its count

• Finally, iterate through the hash map and print the characters with their counts
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Q3. What will you do if you are not able to convince manager for not giving sign off
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Q4. Scenario of picking test cases for automation
Ans. 
Test cases for automation should be selected based on their frequency of execution, complexity, and stability.
• Identify frequently executed test cases

• Select test cases with high complexity

• Choose stable test cases

• Consider test cases with high risk and impact

• Prioritize regression test cases

• Evaluate the feasibility of automating the test case
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It consist of 4 DSA ques and few quiz and opps concept based ques
1st was string based Medium level ques.
2nd was a ques based on 2 pointer
And other 2 was from Vector and Linked list easy ques

Q1. It was stock buy and sell ques on leetcode where we need to find Max profit and what day to buy and sell
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Q2. 2d array ques to print natural numbers in spiral form
Ans. 
Print natural numbers in spiral form using a 2D array.
• Create a 2D array with dimensions n x n.

• Initialize variables for row and column boundaries.

• Iterate through the array in a spiral pattern, filling in natural numbers.
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Q3. Hard level linked list ques
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Q1. Reverse a string
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Q2. Oops
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Exam to test reasoning and aptitude, and speed to answer them

Dsa question easy to medium level

Q1. Just culture fit question, and medium dsa questions
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Q2. Print pyramid from Fibonacci sequence
Ans. 
Print pyramid from Fibonacci sequence
• Generate Fibonacci sequence up to a certain number

• Use the Fibonacci numbers to create the pyramid structure

• Print each row of the pyramid with appropriate spacing
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Q3. Linked list sort
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Q4. Design SQL tables for library management system
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Design SQL tables for library management system
• Create tables for books, authors, members, transactions, etc.

• Use primary and foreign keys to establish relationships between tables

• Include columns like book title, author name, member ID, due date, etc.
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Q5. Valid bracket dsa question
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