Cigniti Technologies Softwaretest Engineer Interview Questions and Answers for Experienced

Plc coding scada configuration

Q1. What advantages of closed loop system
Ans. 
Closed loop systems provide real-time feedback and control, leading to increased efficiency and accuracy.
• Real-time feedback allows for quick adjustments to be made, improving efficiency and accuracy

• Controlled environment reduces the impact of external factors on the system

• Can be used in a variety of industries, such as manufacturing, aerospace, and healthcare

• Examples include automated insulin pumps for diabetes managem
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Q2. Open loop system
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Q3. U can check the feed back in closed loop system
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Q4. No able to see
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2 leetcode questions medium level

Q1. Real life scenario based java questions based on resume and indepth resume discussion
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Q1. Some behavioural and one coding question
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Q1. Same as above indepth discussion
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Q1. Explain truncate vs drop?
Ans. 
Truncate removes all records from a table, while drop deletes the table itself.
• Truncate is a DDL command, while drop is a DDL command.

• Truncate is faster than drop as it does not log individual row deletions.

• Truncate can be rolled back, while drop cannot be rolled back.

• Truncate resets the identity seed of the table, while drop does not.

• Example: TRUNCATE TABLE TableName; DROP TABLE TableName;
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Q1. What is agile methodology
Ans. 
Agile methodology is a software development approach that emphasizes flexibility, collaboration, and iterative development.
• Focus on delivering working software in short, iterative cycles

• Emphasizes collaboration between cross-functional teams

• Allows for changes and adjustments throughout the development process

• Prioritizes customer feedback and continuous improvement

• Common frameworks include Scrum, Kanban, and XP
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Q2. Defect life cycle
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Q1. Java program for prime no
Ans. 
Java program to check if a number is prime or not
• Create a function to check if a number is prime or not

• Iterate from 2 to n/2 and check if n is divisible by any number

• If n is divisible by any number, it is not prime

• If n is not divisible by any number, it is prime
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Q2. Dynamic web table element program
Ans. 
A dynamic web table element program involves identifying and interacting with elements in a table that change dynamically.
• Identify the table element using unique identifiers like class or id

• Use Selenium WebDriver to locate and interact with the table element

• Handle dynamic changes in the table by using dynamic XPath or CSS selectors

• Iterate through rows and columns to extract data or perform actions
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Java code , oops, sql , spring bbot

Q1. Maximum area of Stack
Ans. 
The maximum area of a stack is determined by the size of the stack and the items it can hold.
• The maximum area of a stack is calculated by multiplying the height of the stack by the width of the stack.

• For example, if a stack has a height of 10 units and a width of 5 units, the maximum area would be 50 square units.
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Q2. Length of longest substring
Ans. 
Find the length of the longest substring without repeating characters.
• Iterate through the string and keep track of the characters seen so far in a set.

• Use two pointers to mark the start and end of the current substring.

• Update the maximum length of the substring as you iterate through the string.
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Not great they have tied up with hacker rank and multiple times same set of questions

Q1. Basic questions easy rounds they make and no use
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There was aptitude round