IBS Software Services Project Lead Interview Questions and Answers

Q1. Basic questions and implementations on matlab and simulink MiL and SIL. Simulink tutorial videos on utube will help to prepare for the interview for MBD.
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Q1. About project and about myself was asked.
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Q1. About myself was asked
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Data structures, string operation bitwise, algorithm, vector, map

Q1. Again coding questions verbal and approx answer
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Q2. What kind of error comes when we did mistake with data type
Ans. 
Type mismatch error occurs when incorrect data type is used in a program.
• Type mismatch error can occur when trying to assign a string to an integer variable.

• It can also happen when performing operations on incompatible data types, such as adding a string to a number.

• Type mismatch errors are common in programming languages like Java, C++, and Python.
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Q1. Salary discussion
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Q1. Final round, about joining date
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Q1. Describe your current profile
Ans. 
I am currently working as a Technical Lead in a software development company.
• Leading a team of developers in designing and implementing software solutions

• Providing technical guidance and support to team members

• Collaborating with stakeholders to gather requirements and define project scope

• Ensuring code quality and adherence to best practices

• Participating in code reviews and mentoring junior developers
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Q1. Description about projects
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Q1. Discussion about job profile
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Q1. Discussion regarding CTC expectation
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Q1. MBD questions basics.
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Q2. Statflow and simulink basics
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Q1. Managerial round.
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Q2. Basic managerial questions and HR round
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Q1. Explain firmware update over the air.
Ans. 
Firmware update over the air is the process of remotely updating the software on a device without requiring physical access.
• OTA updates allow for seamless and convenient updates to devices without user intervention.

• Devices must be connected to the internet to receive OTA updates.

• OTA updates can be scheduled to minimize disruption to users.

• Security measures must be in place to ensure the integrity of OTA updates.

• Example...read more
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Q2. Is CAN communication encrypted.
Ans. 
CAN communication is not encrypted by default.
• CAN communication is not encrypted by default

• Encryption can be implemented on top of CAN communication for added security

• Examples of encrypted communication protocols include CAN FD with Secure Onboard Communication (SOC)
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Q1. About system engineering
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Q1. Multithreading(write a thread program to print 0-100 using two threads. One for odd numbers and another for even numbers
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Q2. Observer design pattern with sample code
Ans. 
The Observer pattern allows objects to subscribe and receive updates from a subject when its state changes.
• Decouples the subject from its observers, promoting loose coupling.

• Useful in event handling systems, like GUI frameworks.

• Example: A weather station (subject) notifies multiple display devices (observers) when the weather changes.

• Supports dynamic subscription and unsubscription of observers.
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