CREDITSAFE TECHNOLOGY Database Engineer Interview Questions and Answers

Basic java questions along with aptitude questions.

Q1. Basic oops concept, java functionalities, spring framework.
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Q1. Basic Hr questions, when you can join, expected ctc...
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Some maths related questions

Q1. Related to testing
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Q1. Tell me about projects you have worked upon
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Q2. PEP-8 standards
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Q1. Architecture of project on which you were working
Ans. 
The project utilized a microservices architecture to enhance scalability and maintainability for a web-based application.
• Microservices architecture: Each service handles a specific business capability, e.g., user authentication, payment processing.

• API Gateway: Acts as a single entry point for clients, routing requests to appropriate microservices, e.g., using AWS API Gateway.

• Database per service: Each microservice has ...read more
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Q2. Pandas and Numpy
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Q1. Tell me your Current CTC
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Q2. Tell me your Expected CTC
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There are three sections: -
1. Quants
2. English
3. Reasoning
All sections are accessible medium but you have maintained the speed and accuracy.
after that coding snippet are in java/python.

Code snippets are there in coding sections.

Q1. What is Go Module?
Ans. 
Go Modules are a dependency management system for Go programming language, enabling versioning and isolation of packages.
• Introduced in Go 1.11 to manage dependencies more effectively.

• Allows developers to define module dependencies in a 'go.mod' file.

• Supports semantic versioning, making it easier to manage package versions.

• Modules can be versioned, allowing for reproducible builds.

• Example: 'module example.com/my/module'...read more
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Q2. What is difference between Goroutine and Thread.
Ans. 
Goroutines are lightweight, managed by Go runtime, while threads are OS-level, heavier, and managed by the OS.
• Goroutines are cheaper in terms of memory and resources compared to threads.

• Goroutines are multiplexed onto a smaller number of OS threads, allowing for efficient concurrency.

• Creating a goroutine is as simple as using the 'go' keyword, e.g., 'go myFunction()'.

• Threads require more overhead for creation and manag...read more
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Q1. Tell me about your self
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Q2. Tell me if you have any past experience
Ans. 
I have extensive experience in software development, focusing on full-stack solutions and agile methodologies.
• Full-Stack Development: Worked on both front-end and back-end technologies, including Java, Spring Boot, and React, to create seamless applications.

• Agile Methodologies: Participated in agile sprints, collaborating with cross-functional teams to deliver features iteratively and improve product quality.

• Database M...read more
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Q1. Technical Question and basic knowledge in post which you are applied
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Q1. Related to Linux and Networking
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Q2. Services Samba FTP, Maintenance Mode
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Q3. Troubleshooting of Network
Ans. 
Troubleshooting network involves identifying and resolving issues related to network connectivity and performance.
• Start by identifying the symptoms of the problem

• Check network cables and connections

• Verify network settings and configurations

• Use network diagnostic tools to identify and isolate the problem

• Resolve the issue by applying appropriate fixes

• Test the network to ensure the problem is resolved
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Q1. Qts related to Bootprocess AWS etc
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Q2. Port Forwarding of services
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