Boeing Data Engineer Interview Questions and Answers

Q1. Core Java Spring EJB Rest API
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Q1. Core Java Spring Design Pattern
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Q1. C++ fundamental
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Q2. Reverse linked list
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Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with basic DSA questions. Questions on Selenium and Linux commands were also asked.

Q1. 
Reverse a String Problem Statement
Given a string STR containing characters from [a-z], [A-Z], [0-9], and special characters, determine the reverse of the string.
Input:
The input starts with a single i...read more
Ans. 
Reverse a given string containing characters from [a-z], [A-Z], [0-9], and special characters.
• Iterate through the characters of the string from end to start and append them to a new string to get the reversed string.

• Use built-in functions like reverse() or StringBuilder in languages like Java for efficient reversal.

• Handle special characters and numbers along with alphabets while reversing the string.

• Ensure to print eac...read more
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Q2. 
Duplicate Characters in a String
Given a string 'S' of length 'N', identify and return all the characters in the string that appear more than once along with their frequency.
Example:
Input:
 N = 5
 S =...read more
Ans. 
Identify and return all characters in a string that appear more than once along with their frequency.
• Iterate through the string and count the frequency of each character using a hashmap.

• Return characters with frequency greater than 1 in an array of tuples.
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Q3. What is the cut command in Linux and how do you use it?
Ans. 
The cut command in Linux is used to extract sections from each line of input.
• Used to cut out specific sections of text from a file or input stream

• Can specify the delimiter used to separate fields

• Options include -c for characters, -f for fields, and -d to specify the delimiter

• Example: cut -d',' -f1,3 file.txt
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Q4. What is the Find command in Linux and how is it used?
Ans. 
The Find command in Linux is used to search for files and directories based on specified criteria.
• Used to search for files and directories in a specified directory

• Criteria can include file name, size, permissions, and more

• Can be combined with other commands like -exec to perform actions on found files
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There were easy to moderate difficulty level questions

Q1. Explain your resume
Ans. 
My resume showcases my experience in data engineering, including projects involving ETL processes, data modeling, and database management.
• Experience with ETL processes, including extracting data from various sources, transforming it, and loading it into a data warehouse

• Proficiency in data modeling techniques to design efficient database structures

• Strong skills in database management, including SQL queries, performance ...read more
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Q2. Do you know about cloud
Ans. 
Yes, cloud computing refers to the delivery of computing services over the internet.
• Cloud computing allows for on-demand access to a shared pool of resources, such as servers, storage, and applications.

• Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

• Cloud computing offers scalability, flexibility, and cost-efficiency for businesses and individuals.

• Common cloud de...read more
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Tree algorithm about some riddels