DigitalTrust Technologies Private Interview Questions and Answers

C programming coding

Q1. Introduction , Family background , why iasys, why should hire you, salary expectation
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Q1. Introduction, in which programming language are you comfortable( 45 min)
Ans. 
I am comfortable with C, C++, and Python for embedded software development.
• Proficient in C for low-level programming

• Experienced in C++ for object-oriented design

• Skilled in Python for scripting and automation tasks
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Q2. What is class object, inheritance, function overloading ,function overriding, difference between encapsulation and abstraction, volatile keyword
Ans. 
Class object is an instance of a class, inheritance allows a class to inherit properties and methods from another class, function overloading is defining multiple functions with the same name but different parameters, function overriding is redefining a function in a subclass, encapsulation is bundling data and methods that operate on the data into a single unit, abstraction is hiding the implementation details and sho...read more
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Q3. What is pointer and it's type
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Types of pointers include null pointers, void pointers, function pointers, and array pointers.

• Example: int *ptr; // pointer to an integer variable

• Example: char *str = 'hello'; // pointer to a character array
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Q4. Static function with implementation , virtual function with code, multilevel inheritance implementation
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Q5. Projects deep, what challenges faced and how to overcome, your role in project
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Q1. Technical 2 (1 hour)
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Q2. Introduction, what is Embedded system, Project deep
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Q3. What is semaphore and mutex, binary semaphore, thread and process
Ans. 
Semaphores and mutex are synchronization mechanisms in multithreading. Threads are lightweight processes, while processes are independent execution units.
• Semaphore: used to control access to a shared resource by multiple threads. Example: controlling access to a printer in a networked system.

• Mutex: similar to a semaphore but only allows one thread to access a resource at a time. Example: protecting a critical section o...read more
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Q4. How to stored data in memory , Interrupt service routine ,interrupt latency, UART,SPI,
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Q5. Watchdog timer, 8051 microcontroller architecture, volatile keyword, static function, global and local variable
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Logic test and personality test

Q1. Introduce yourself
Ans. 
I am a sustainability consultant with a background in environmental science and experience in implementing sustainable practices.
• Background in environmental science

• Experience in implementing sustainable practices

• Passionate about promoting sustainability in various industries
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Q2. Why are you interested
Ans. 
Passionate about promoting sustainable practices and making a positive impact on the environment.
• Passionate about environmental conservation and sustainability

• Believe in the importance of implementing sustainable practices in businesses

• Excited about the opportunity to help organizations reduce their carbon footprint

• Previous experience in sustainability projects or initiatives
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Q1. Strength and witness
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Q2. A challenge you faced
Ans. 
I faced a challenge in my previous role when implementing a sustainability program for a large corporation.
• Resistance from upper management to allocate resources for sustainability initiatives

• Difficulty in engaging employees at all levels to participate in sustainability efforts

• Lack of buy-in from stakeholders outside of the organization

• Balancing short-term financial goals with long-term sustainability objectives
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Q1. Questions about AWS services
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Q2. Data manipulation using Python
Ans. 
Python is commonly used for data manipulation tasks due to its powerful libraries like Pandas and NumPy.
• Use Pandas library for data manipulation tasks in Python

• Pandas provides data structures like DataFrame for easy manipulation

• Use NumPy for numerical operations on data arrays

• Example: df['new_column'] = df['column1'] + df['column2']
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Q1. Technical what you do in last job
Ans. 
Implemented and executed test plans, conducted inspections, and ensured quality standards were met in last job as QA QC Engineer.
• Developed test plans and procedures for various projects

• Conducted inspections and audits to ensure compliance with quality standards

• Identified and resolved quality issues through root cause analysis

• Collaborated with cross-functional teams to improve quality processes

• Utilized testing tools and
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Q2. Question regarding QC
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They given me to solve 50 appittude question on different topics such as probability and statistics and various mathematics concepts etc

Q1. Introduce your self
Ans. 
I am a dedicated and detail-oriented Business Analyst with experience in data analysis and process improvement.
• Experienced in conducting data analysis to identify trends and insights

• Skilled in process improvement and optimization

• Strong communication and presentation skills

• Proficient in using tools like Excel, SQL, and Tableau

• Certified in Business Analysis (e.g. CBAP)
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Q2. Technical questions regarding our domains
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Q1. What is your mangerial style?
Ans. 
My managerial style is collaborative, empowering, and focused on fostering a positive work environment.
• I believe in open communication and involving team members in decision-making processes.

• I empower my team by providing them with the resources and support they need to succeed.

• I prioritize creating a positive work environment where team members feel valued and motivated.

• I believe in setting clear goals and expectation...read more
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Q2. Tell us about a time you resolved a conflist in the workplace.
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Q1. Asked law related questions. In which sections FIR can be filed if someone broke the gas pipeline.
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Q2. Asked about laws governing gas licence. Consumer laws.
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Electrical design like substation