Maersk Senior DBA and Data Engineer Interview Questions and Answers

Q1. Previous project discussion
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Q2. Sql amd python tabluea excel
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Q1. Your experience
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Q2. Where do you live and how much salary do you accept?
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Q1. Tell me about spark internal memory management?
Ans. 
Spark internal memory management involves allocating memory for storage, execution, and caching.
• Spark uses a unified memory management system that dynamically allocates memory between storage and execution.

• Memory is divided into regions for storage (cache) and execution (task memory).

• Spark also uses a spill mechanism to write data to disk when memory is full, preventing out-of-memory errors.

• Users can configure memory a...read more
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Q2. Difference between heap and non heap memory?
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Heap memory is used for dynamic memory allocation, while non-heap memory is used for static memory allocation.
• Heap memory is used for storing objects created at runtime, while non-heap memory is used for storing class files and method information.

• Heap memory is managed by garbage collector for automatic memory management, while non-heap memory is managed by the JVM.

• Examples of heap memory include objects created using ...read more
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Q1. About yourself what about your working?
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Q1. Data entry opretor logistics supply chain solution
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Q2. Received and secondry distbution
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Q3. Ricevied matiriali inbound
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Q4. Despatch materials outbound
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Despatch materials outbound involves preparing and sending out materials to customers or other locations.
• Organize materials for shipment

• Prepare shipping labels and documentation

• Coordinate with shipping carriers

• Track shipments to ensure timely delivery

• Communicate with customers regarding shipment status
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Opretion and logistics supply chain solution werehouse and data entry opretor

Q1. What is Transformer and it's type
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease the voltage in electrical power transmission and distribution systems.

• There are two main types of transformers: step-up transformers and step-down transformers.

• Step-up transformers increase the voltage, while step-down transformers decrease t...read more
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Q2. What is motor and it's type
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A motor is a device that converts electrical energy into mechanical energy. There are various types of motors.
• Motors are used in various applications such as fans, pumps, and vehicles.

• Types of motors include DC motors, AC motors, stepper motors, and servo motors.

• DC motors are commonly used in household appliances and electric vehicles.

• AC motors are used in industrial applications such as conveyor belts and compressors.

• ...read more
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Q3. Transmission line
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Q4. Plc (programable logics controller)
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Q5. Other question related electrical
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Q1. Tell about yourself?
Ans. Good Afternoon sir, My name is Arjun Chauhan. I'm from Sultanpur UP. I'm twenty six years old. If I talk about my family, apart my mother I have two brothers and two sisters. As far as my study is concerned I have done graduation. Besides it I have done these courses related computer like ADCA, CCC,and Typing course. I have two years' experience as a data entry operator in Best Roadways Limited and one year as a
Answered by Arjun Singh
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Q2. What's your strength?
Ans. Sir I am a hard working person. I'm punctual and loyal towards my work.
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Q3. How can you say you are a hard working person,loyal and punctual towards your work?
Ans. Sir because whatever task is assigned to me, l just get into it and don't even see the time.I always value the time, sir I understand that time once gone can never be regained.
Answered by Arjun Singh
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Q4. Why should we hire you?
Ans. Sir I will turn out to be a key player of your company and I will assure you, you will never regret for the decision to hire me.
Answered by Arjun Singh
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Q5. Can you work under pressure?
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He said to me, I want to see your typing speed then I did typing of one paragraph and the speed 40 words per minute then he said good

Math calculation computer typing speed test

Who to do work
Working time
Shifting

Who to deliver customer

A process or record of research in which detailed consideration is given to the development of a particular person, group, or situation over a period of time.

Q1. My self.Iam Naresh Majhi I belongs to Keonjhar district. I have completing class 10th from kiit University Bhubaneswar 2018. Under 12th from kiit University Bhubaneswar 2020. I have completing Graduation ...read more
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Q2. Hubby. My hubby is the Basketball.Netball. I have play two Netball National Matches. One National Basketball Matches Book reading. Plantation.
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My hubby is the Basketball.Netball. I have play two Netball National Matches. And One Basketball matches.
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Q3. What is your experience. Data entry, word typing speed one minute +27
Ans. 
My Computer experience. Data entry, word typing speed one minute +27 words Work in Excel sheet About Vlookup entire.H lookup entire, poivotable.
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Q4. About the excl sheet. I know V lookup entre.H lookup entire. Poivotable
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Q5. What is your salary package you know. YesI know my salary package is 12k
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