SFO Technologies Supplier Quality Assurance Engineer Interview Questions and Answers

Q1. What is meant by Polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.

• Example: Function overloading
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Q2. Write a program to find no of repeated characters in a string
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Program to find number of repeated characters in a string
• Iterate through each character in the string

• Use a hashmap to store the count of each character

• Increment the count if character is already present in the hashmap

• Return the count of characters with count greater than 1
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Q3. About config file
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Q4. About scenario outline
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Q5. Tell me about yourself
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I am a dedicated Quality Engineer with a strong background in ensuring product quality and compliance with industry standards.
• Experienced in conducting quality control tests and inspections

• Skilled in analyzing data and identifying areas for improvement

• Proficient in implementing quality management systems

• Strong attention to detail and problem-solving skills

• Excellent communication and teamwork abilities
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Basic programs from java

Q1. Basic java selenium framework related questions
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Q1. What is the spc?
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SPC stands for Statistical Process Control, a method used to monitor and control processes to ensure they are stable and in control.
• SPC involves collecting and analyzing data to understand variation in a process

• It helps identify when a process is out of control and in need of adjustment

• Common tools used in SPC include control charts, histograms, and Pareto charts
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Q2. What is msa?
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MSA stands for Measurement System Analysis. It is a method used to assess the measurement system's capability to provide accurate and reliable data.
• MSA helps in identifying sources of variation in measurement systems.

• It includes studies like Gage R&R (Repeatability and Reproducibility) to evaluate measurement system precision.

• MSA ensures that the measurement system is capable of providing accurate and reliable data...read more
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Q1. What is your job role?
Ans. 
Quality Engineers are responsible for ensuring products meet quality standards through testing and analysis.
• Develop and implement quality control systems

• Conduct tests and inspections to identify defects

• Analyze data to improve processes and reduce errors

• Collaborate with production teams to address quality issues

• Document findings and recommend improvements
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Q2. How you manage your daily work management?
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I manage my daily work management by prioritizing tasks, creating to-do lists, setting deadlines, and utilizing time management techniques.
• Prioritize tasks based on urgency and importance

• Create to-do lists to keep track of tasks

• Set deadlines to ensure timely completion

• Utilize time management techniques such as Pomodoro technique or Eisenhower matrix

• Regularly review and adjust the plan as needed
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Q1. What is etl and why is it used
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ETL stands for Extract, Transform, Load. It is used to extract data from various sources, transform it into a consistent format, and load it into a data warehouse for analysis.
• Extract: Data is extracted from different sources such as databases, files, or APIs.

• Transform: The extracted data is cleaned, filtered, and transformed into a consistent format.

• Load: The transformed data is loaded into a data warehouse for analys...read more
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Q2. What is scd types
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SCD types refer to slowly changing dimensions in data warehousing, used to track historical changes in data over time.
• SCD Type 1: Overwrites old data with new data, losing historical information.

• SCD Type 2: Keeps multiple versions of the same record, creating new records for each change.

• SCD Type 3: Keeps some historical data in the same record, adding new columns for changes.

• SCD Type 4: Uses separate tables to store hi...read more
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Q1. Selenium Framework ;String manipulation programs
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Selenium Framework is used for automated testing of web applications. String manipulation programs are used to modify strings.
• Selenium Framework is used to automate web application testing by simulating user actions.

• String manipulation programs are used to modify strings by adding, removing, or replacing characters.

• Examples of string manipulation programs include substring, replace, and split.
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Q2. DB Queries related to like and select
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Bubble sort, binary search

Basic Aptitude test on Quant and Verbal

Coding Test in prefered language

Q1. What are opps concepts
Ans. 
Oops concepts refer to Object-Oriented Programming concepts in software development.
• Encapsulation: bundling data and methods that operate on the data into a single unit

• Inheritance: ability of a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for different data types

• Abstraction: hiding the complex implementation details and showing only the necessary feature
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Q2. Explain mentioned concepts with examples
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Quality Engineer concepts explained with examples
• Statistical Process Control (SPC) - monitoring and controlling a process through statistical analysis, e.g. tracking defects in manufacturing

• Root Cause Analysis - identifying the underlying cause of a problem, e.g. using fishbone diagram to determine why a product failed

• Failure Mode and Effects Analysis (FMEA) - assessing potential failure modes of a product or process a...read more
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Basic questions of maths , computer and english

Q1. Testing related questions
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Q1. Brief interview on technical skills
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