20+ Mekins Industries Interview Questions and Answers

Optical fibre communication takes place at different wavelengths, with some providing better performance than others.

• Optical fibre communication can take place at various wavelengths, including 850 nm, 1310 nm, and 1550 nm.

• The 850 nm wavelength is commonly used for short-distance communication, such as within buildings or data centers.

• The 1310 nm wavelength is often used for medium-distance communication, such as metropolitan area networks.

• The 1550 nm wavelength is typically ...read more

Timers in microprocessors are hardware components that measure and control time intervals. They can be triggered by external events or programmed instructions.

• Timers in microprocessors are used for various purposes such as generating accurate time delays, measuring time intervals, and controlling the execution of tasks.

• They are typically implemented as hardware registers that count clock cycles or external events.

• Timers can be triggered by external events, such as a signal ch...read more

Interrupts in microprocessors are signals that temporarily halt the normal execution of a program to handle a specific event or request.

• Interrupts are used to handle time-critical events or to interface with external devices.

• They allow the microprocessor to respond to external stimuli without constantly checking for them.

• Interrupts have different priority levels and can be masked or enabled/disabled.

• Examples of interrupts include keyboard input, timer events, and hardware err...read more

I have worked on various cloud systems such as AWS, Azure, and Google Cloud Platform. I have configured these systems for optimal performance and scalability.

• Worked on AWS, Azure, and Google Cloud Platform

• Configured cloud systems for optimal performance and scalability

• Implemented high availability and disaster recovery solutions

• Managed cloud resources such as EC2 instances, S3 buckets, and VPCs

• Automated deployment and scaling using tools like Terraform and Kubernetes

The fundamental principle of an operational amplifier (OPAMP) is to amplify the difference between the input voltages.

• OPAMP amplifies the voltage difference between its two input terminals

• The output voltage of an OPAMP is proportional to the difference between the input voltages

• OPAMP has a high gain and high input impedance

• The input terminals of an OPAMP draw negligible current

• OPAMP operates in a closed-loop configuration to achieve desired amplification

Losses in optical fibre include attenuation, dispersion, and bending losses.

• Attenuation is the reduction in signal strength as it travels through the fibre.

• Dispersion is the spreading of the signal due to different wavelengths traveling at different speeds.

• Bending losses occur when the fibre is bent too tightly, causing signal loss.

• Other losses include splice losses, connector losses, and modal noise.

Servo motors are devices that convert electrical signals into precise mechanical motion.

• Servo motors are commonly used in robotics and automation systems.

• They consist of a motor, a control circuit, and a feedback mechanism.

• Servo motors are capable of rotating to a specific angle and maintaining that position.

• They are often used in applications that require accurate positioning, such as robotic arms or camera gimbals.

• Servo motors can be controlled using pulse width modulation ...read more

S/4 Hana is an ERP software suite that runs on SAP Hana database and provides real-time data processing and analytics.

• S/4 Hana is the successor to SAP ERP and is designed to run on SAP Hana database.

• It provides real-time data processing and analytics, enabling faster decision-making.

• The architecture of S/4 Hana is based on a simplified data model, which reduces data redundancy and improves performance.

• It also includes a Fiori-based user interface, which provides a modern and ...read more

There are three types of replications process in Hana Db: trigger-based, ETL-based, and log-based.

• Trigger-based replication uses triggers to capture changes in source tables and replicate them to target tables.

• ETL-based replication involves extracting data from source tables, transforming it, and loading it into target tables.

• Log-based replication reads the transaction logs of the source database and replicates the changes to the target database.

• Examples of tools that support...read more

To check if two random variables are independent and its importance in Naive Bayes classification.

• Check if the joint probability of the two variables is equal to the product of their marginal probabilities.

• If the joint probability is not equal to the product of the marginal probabilities, then the variables are dependent.

• Independence assumption is important in Naive Bayes classification as it simplifies the calculation of conditional probabilities.

• Naive Bayes assumes that the...read more

PWM stands for Pulse Width Modulation. It is a technique used to control the amount of power delivered to a device by varying the width of the pulse of a periodic signal.

• PWM is commonly used in electronic devices to control the speed of motors or the brightness of LEDs.

• It works by rapidly switching a signal between ON and OFF states at a fixed frequency.

• The ratio of the ON time to the total period is called the duty cycle, which determines the average power delivered.

• By adjus...read more

Hana DB replication is the process of copying data from one Hana database to another in real-time.

• Hana DB replication ensures high availability and disaster recovery.

• It can be done using various methods such as trigger-based replication, log-based replication, and ETL-based replication.

• It allows for real-time reporting and analytics on the replicated data.

• Examples of Hana DB replication tools include SAP Landscape Transformation and SAP Hana Smart Data Integration.

Optical fiber is a technology that uses thin strands of glass or plastic to transmit data as pulses of light.

• Optical fibers are made of a core, cladding, and a protective outer layer.

• Light signals are transmitted through the core of the fiber by bouncing off the cladding due to total internal reflection.

• Fiber optic cables can transmit data over long distances with minimal loss of signal strength.

• They are used in telecommunications, internet connections, cable television, and ...read more

It depends on the specifics of the policy.

• What is the coverage amount?

• What is the deductible?

• Are pre-existing conditions covered?

• What is the cost to employees?

• What is the network of providers?

• What is the policy on maternity leave?

• Is there a wellness program?

Hana DB HA and DR set up involves configuring high availability and disaster recovery for Hana databases.

• Configure Hana system replication for HA and DR

• Set up secondary site for DR

• Ensure proper network connectivity and bandwidth

• Test failover and failback procedures

• Implement backup and recovery strategies

The difference is that temperature is a measurable physical quantity, while being the best software engineer is subjective and based on skills and experience.

• Temperature is a physical quantity that can be measured with instruments, while being the best software engineer is subjective and based on individual skills and experience.

• Temperature is objective and can be quantified with numbers, while being the best software engineer is a qualitative assessment.

• Temperature can be in...read more

Fraud involves intentional deception for financial or personal gain.

• Fraud is a deliberate act of deception to secure unfair or unlawful gain.

• Common types of fraud include identity theft, credit card fraud, and insurance fraud.

• Fraud can occur in various industries such as finance, healthcare, and e-commerce.

• Preventative measures against fraud include implementing security protocols, conducting regular audits, and educating employees.

• Examples of fraud include Ponzi schemes, phi...read more

Risk management is the process of identifying, assessing, and prioritizing risks followed by coordinated and economical application of resources to minimize, monitor, and control the probability and impact of unfortunate events.

• Identifying potential risks that could impact an organization's objectives

• Assessing the likelihood and impact of each risk

• Prioritizing risks based on their potential impact and likelihood

• Developing strategies to mitigate or manage risks

• Monitoring and r...read more

The best software engineer is someone who is highly skilled in coding, problem-solving, communication, and teamwork.

• Strong coding skills in multiple languages

• Ability to solve complex problems efficiently

• Excellent communication skills to work with team members and clients

• Strong teamwork and collaboration abilities

• Continuous learning and staying updated with new technologies

• Creativity and innovation in developing software solutions

Improving Company growth can be achieved by implementing effective marketing strategies, expanding product lines, and investing in employee training.

• Develop and implement effective marketing strategies to increase brand awareness and attract new customers

• Expand product lines to cater to a wider range of customers and increase revenue streams

• Invest in employee training to improve productivity, efficiency, and customer service

• Explore new markets and partnerships to expand the c...read more

Negotiating CTC requires research, preparation, and effective communication.

• Research industry standards and salary ranges for the position

• Identify your own value and experience to the company

• Be clear about your expectations and priorities

• Consider non-monetary benefits such as flexible work hours or additional vacation time

• Be willing to compromise and find a mutually beneficial solution

A software engineer is a professional who designs, develops, and maintains software applications and systems.

• Responsible for writing code to create software programs

• Collaborates with team members to design and implement solutions

• Tests and debugs software to ensure functionality

• Updates and maintains existing software applications

• Stays current with industry trends and technologies

I am a software developer with expertise in designing, coding, testing, and debugging software applications.

• Proficient in programming languages such as Java, Python, C++

• Experience with software development tools like Git, Jira, and Jenkins

• Strong problem-solving skills and attention to detail

• Ability to work collaboratively in a team environment

• Familiarity with Agile development methodologies

My strengths include strong leadership skills, excellent organizational abilities, and a keen eye for detail.

• Strong leadership skills - I have experience in leading teams and delegating tasks effectively.

• Excellent organizational abilities - I am able to prioritize tasks, manage inventory efficiently, and ensure smooth operations.

• Keen eye for detail - I pay close attention to details to prevent errors and maintain high standards of quality.

Difference between @Inject and @Autowire in Java Spring

• Both are used for dependency injection in Spring framework

• @Inject is a standard annotation defined in Java EE, while @Autowired is a Spring-specific annotation

• @Inject is more powerful and flexible as it supports optional dependencies and custom qualifiers

• @Autowired is more commonly used in Spring applications and is more concise

Garbage collector is a feature in programming languages that automatically manages memory by reclaiming unused memory.

• Garbage collector is responsible for identifying and freeing up memory that is no longer in use by the program.

• It helps prevent memory leaks and improves performance by automatically deallocating memory.

• Different programming languages have different garbage collection algorithms, such as mark-and-sweep, reference counting, and generational garbage collection.

• E...read more