50 Hertz Interview Questions, Process, and Tips

Q1. How to run linear regression model in R
Ans. 
To run a linear regression model in R, use the lm() function with the formula specifying the relationship between variables.
• Use the lm() function to fit a linear regression model, specifying the formula with the dependent and independent variables.

• For example, to predict sales based on advertising spend, use lm(sales ~ advertising, data = dataset).

• Use summary() to view the results of the linear regression model, includ...read more
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Q2. How to run linear regression model without intercept in R
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To run linear regression model without intercept in R, set the intercept parameter to 0
• Set the intercept parameter to 0 in the lm() function in R

• Example: lm(y ~ x - 1, data = dataset) will fit a linear regression model without intercept
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It was good experience, it build my confident

Q1. Servlet,collection framework, spring ,springboot, jsp,Ajax,Jdbc etc
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Q1. Questions related to desktop support, network, outlook
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Q2. How to assemble a system ?
Ans. 
To assemble a system, start by gathering all necessary components and tools, then follow a step-by-step guide or manual for installation.
• Gather all necessary components such as CPU, motherboard, RAM, GPU, storage devices, power supply, and case.

• Ensure you have the necessary tools like screwdrivers, thermal paste, and cable ties.

• Follow a step-by-step guide or manual for installation to ensure proper assembly and connect...read more
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Q3. How to create a outlook account?
Ans. 
To create an Outlook account, go to the Outlook website and click on 'Create account'. Fill in the required information and follow the prompts to set up your account.
• Go to the Outlook website

• Click on 'Create account'

• Fill in the required information

• Follow the prompts to set up your account
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Q4. How to format a system?
Ans. 
Formatting a system involves wiping the hard drive and reinstalling the operating system.
• Back up important data before formatting

• Boot from installation media or recovery partition

• Follow on-screen prompts to format the hard drive and reinstall the OS
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Q1. Director ask some normal questions about your background.
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Basic aptitude followed with english and reasoning

Q1. Core java technical questions , spring , spring boot
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Q2. What is JIT in java
Ans. 
JIT stands for Just-In-Time compilation in Java. It dynamically compiles bytecode into machine code at runtime for improved performance.
• JIT is a part of the Java Virtual Machine (JVM) that optimizes the execution of Java programs.

• It analyzes the frequently executed parts of the bytecode and compiles them into native machine code.

• This compilation happens at runtime, just before the code is executed, hence the name Just-...read more
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Q3. Explain lifecyxle of thread in java
Ans. 
The lifecycle of a thread in Java includes several stages from creation to termination.
• A thread is created using the Thread class or implementing the Runnable interface.

• The thread goes through the new, runnable, and blocked states before running.

• Once running, the thread can be paused, resumed, or stopped.

• Finally, the thread reaches the terminated state and cannot be restarted.
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