Hertz Interview Questions and Answers

Q1. Q1/- How to extract data from database
Ans. 
To extract data from a database, one can use SQL queries or programming languages like Python or R.
• Use SQL queries to extract data from a database

• Use programming languages like Python or R to extract data from a database

• Connect to the database using appropriate credentials

• Identify the tables and columns from which data needs to be extracted

• Write the query or code to extract the data

• Save the extracted data in a desired
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Q2. Q2/- What are the Tableau Datatypes
Ans. 
Tableau has 14 datatypes including string, integer, float, date, boolean, and more.
• Tableau has 14 datatypes

• String, Integer, Float, Date, Boolean, and more

• Data types can be changed in Tableau

• Data types affect how data is displayed and aggregated

• Examples: String - 'John Smith', Integer - 25, Float - 3.14, Date - 01/01/2021, Boolean - True/False
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Q1. Q1/- Related company example along with Excel
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Q2. Q2.- Vlookup() copy record from one sheet to another sheet
Ans. 
Vlookup() is a function in Excel that can be used to copy records from one sheet to another based on a common identifier.
• The Vlookup() function searches for a value in the first column of a table array and returns a corresponding value in the same row from a specified column.

• The common identifier used in the Vlookup() function should be present in both the source and destination sheets.

• The Vlookup() function can be use...read more
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Dsa round was conducted

Q1. Anything related to past exp
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Q1. Be well-versed with C, SDLC and protocol standards
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Q1. Storage classes, Volatile, Programs on arrays
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Q2. Describe my project
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Q3. SDLC in general
Ans. 
SDLC stands for Software Development Life Cycle, which is a process used by software development teams to design, develop, and test high-quality software.
• SDLC consists of several phases including planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables to ensure the software meets the requirements and quality standards.

• Examples of SDLC models include...read more
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Q4. CAN protocol functionality
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CAN protocol is a communication standard used in automotive and industrial applications.
• CAN protocol stands for Controller Area Network

• It is a message-based protocol used for communication between electronic control units (ECUs)

• CAN protocol allows for high-speed communication and real-time data transmission

• It is commonly used in automotive applications for functions such as engine control, transmission control, and bod...read more
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Q1. Asked related to introduction and about previous company profile
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Q1. Related to advanced excel
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Q1. System design, binary search related questions
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Q1. Basic Linked list, recursion question.
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Q1. Past experience
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Q2. Current responsibilities
Ans. 
As a Senior Engineer, my current responsibilities include leading a team of engineers, overseeing project timelines, and ensuring technical excellence.
• Leading a team of engineers

• Overseeing project timelines

• Ensuring technical excellence
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