United Wholesale Mortgage Developer Interview Questions and Answers

Coding test followed by technical discussion

Q1. Governer limits and usage
Ans. 
Governer limits are restrictions set by Salesforce to prevent code from consuming too much resources.
• Governer limits are restrictions set by Salesforce to ensure efficient use of resources.

• They include limits on CPU time, heap size, SOQL queries, DML statements, etc.

• Exceeding these limits can result in exceptions like 'Apex CPU time limit exceeded'.
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Q2. Integration related questions
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Q1. Reverse a string
Ans. 
Reverse a given string by iterating through it backwards and appending each character to a new string.
• Create a new empty string to store the reversed string

• Iterate through the original string from the last character to the first character

• Append each character to the new string

• Return the new string as the reversed string
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Q2. Pallindrome number
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Design rental sharing

Q1. What is Azure Databricks
Ans. 
Azure Databricks is a unified analytics platform that combines big data processing and machine learning.
• Collaborative environment for data scientists, data engineers, and business analysts

• Integrated with Azure services for data storage, processing, and analytics

• Supports popular programming languages like Python, Scala, and SQL

• Provides tools for data visualization and machine learning model development
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Q2. What is cache in Databricks
Ans. 
Cache in Databricks is a mechanism to store intermediate results of computations for faster access.
• Cache in Databricks is used to store intermediate results of computations in memory for faster access.

• It helps in reducing the time taken to recompute the same data by storing it in memory.

• Data can be cached at different levels such as DataFrame, RDD, or table.

• Example: df.cache() will cache the DataFrame 'df' in memory fo
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Good Interview process. Django and DSA were asked.

Q1. Authentication and authorisation
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Q1. What is rabbitqe
Ans. 
RabbitMQ is a message broker software that implements the Advanced Message Queuing Protocol (AMQP).
• Message broker software

• Implements AMQP protocol

• Used for asynchronous messaging between applications
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Q1. Basics of any programming language required
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Q1. Good communication required
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