AgreeYa Solutions National Manager Interview Questions and Answers

Q1. Basic Oracle Architecture, RAC Setup, Golden Gate Troubleshooting, Data Guard recover, RMAN restoration
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Math and verbal round .

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Q1. Duplicates in array College Projects Hashmap implementation
Ans. 
Implement a function to find duplicates in an array of strings using Hashmap.
• Create a Hashmap to store the frequency of each string in the array

• Iterate through the array and check if the frequency of any string is greater than 1

• If yes, add it to the list of duplicates

• Return the list of duplicates
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Q1. Hashmap implementation
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Hashmap is a data structure that stores key-value pairs and provides constant time complexity for insertion, deletion, and retrieval.
• Hashmap uses hashing function to map keys to indices in an array

• Collisions can occur when two keys map to the same index, which can be resolved using separate chaining or open addressing

• Java implementation: HashMap map = new HashMap<>()
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Q2. Server and environment
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Q3. Differentce Between een Spring boot,spring
Ans. 
Spring is a framework while Spring Boot is a tool that simplifies Spring application development.
• Spring Boot provides auto-configuration and embedded servers.

• Spring requires more configuration and setup.

• Spring Boot is opinionated and follows 'convention over configuration'.

• Spring Boot reduces boilerplate code.

• Spring Boot is ideal for microservices and standalone applications.
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Q4. Type of conttoler in spring and type of annotations
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The type of controller in Spring is @Controller and the type of annotations are @RequestMapping and @ResponseBody.
• @Controller is used to mark a class as a Spring MVC controller.

• @RequestMapping is used to map a URL to a method in a controller.

• @ResponseBody is used to indicate that the return value of a method should be serialized and returned as the response body.
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Q5. What is junkins why we use
Ans. 
Junkins is not a known term in software engineering.
• Junkins is not a term used in software engineering.

• It is possible that the interviewer misspoke or meant to ask a different question.

• It is important to clarify any confusion or misunderstandings during an interview.
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