Technique Polytechnic Institute Interview Questions and Answers

To obtain minimum value of a function without using derivatives, use methods like bisection, golden section search, or simulated annealing.

• Bisection method involves repeatedly dividing the interval in half and checking which half contains the minimum value.

• Golden section search is similar to bisection but uses a fixed ratio to divide the interval.

• Simulated annealing is a probabilistic method that randomly explores the

To define 3D array in MATLAB or Python, use array indexing. To obtain maximum from matrix elements, use max() function.

• In MATLAB, use array indexing with three dimensions: A(x,y,z)

• In Python, use numpy library to create 3D array: np.array([[[1,2],[3,4]],[[5,6],[7,8]]])

• To obtain maximum from matrix elements, use max() function: max(A)

• In Python, use np.max() function to obtain maximum from matrix elements

To get the median of a data sequence, sort the data and find the middle value.

• Sort the data sequence in ascending or descending order

• If the sequence has an odd number of values, the median is the middle value

• If the sequence has an even number of values, the median is the average of the two middle values

• Example: For the sequence [3, 1, 4, 2, 5], sort it to [1, 2, 3, 4, 5] and the median is 3

• Example: For the sequence [3,...read more

Microprocessors are general-purpose devices used in computers, while controllers are specialized devices used in embedded systems.

• Microprocessors are designed for general-purpose computing tasks, while controllers are designed for specific control applications.

• Microprocessors typically have higher processing power and are used in computers, smartphones, etc., while controllers have lower processing power and are used i...read more

End to end project execution involves managing all aspects of a project from initiation to completion.

• Developing project plans and timelines

• Assigning tasks and responsibilities to team members

• Monitoring progress and addressing any issues that arise

• Ensuring project deliverables meet quality standards

• Communicating with stakeholders and providing updates

• Conducting post-project evaluations to identify areas for improvement

GPS and GSM modules are hardware components used in tracking devices to determine location and communicate data wirelessly.

• GPS module receives signals from satellites to determine location coordinates

• GSM module uses cellular network to transmit data to a remote server or device

• Both modules work together in tracking devices to provide real-time location updates

• Example: A GPS module like NEO-6M and a GSM module like SIM8

RTOS is designed for real-time applications with strict timing requirements, while normal OS is more general-purpose.

• RTOS is optimized for deterministic response times, ensuring tasks are completed within specific time constraints.

• Normal OS prioritizes multitasking and resource sharing, which may lead to less predictable response times.

• RTOS is commonly used in embedded systems, automotive control systems, and industria...read more

Types of databases suitable for storing various types of information

• Relational databases: Organized into tables with rows and columns, suitable for structured data. Example: MySQL, PostgreSQL

• NoSQL databases: Flexible schema design, suitable for unstructured data. Example: MongoDB, Cassandra

• Graph databases: Focus on relationships between data entities, suitable for interconnected data. Example: Neo4j

• Document databases: ...read more