Dhiva Senior Software Engineer Interview Questions and Answers

Q1. Difference between ref and out
Ans. 
ref is used for passing a variable by reference, out is used for returning a variable by reference
• ref is used for passing a variable by reference, allowing the method to modify the variable

• out is used for returning a variable by reference, typically used for returning multiple values from a method

• Example: int x = 10; SomeMethod(ref x); // x can be modified inside SomeMethod

• Example: int result; SomeMethod(out result); /
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Q2. Ref needs to be initialized before passing and will change, out no need to be initialized and
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Q1. How would you design tiny url implementation?
Ans. 
Design a system to create and manage short URLs for long URLs.
• Use a database to store mappings of short URLs to long URLs.

• Generate a unique short URL for each long URL using a hashing algorithm.

• Implement a redirect service to redirect users from short URLs to long URLs.

• Consider adding expiration dates for short URLs to manage storage.

• Implement analytics to track usage of short URLs.
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Linear search dsa questions

Q1. Basic java oops concept
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70 mins 4 topics, 1/2 easy, 3 would be easy+, need detail orientation, 4 would be medium,

Easy case study, code review and find the bug

20 mins java leetcode

Q1. 60 mins discussion by tech lead
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Q1. How would you design tiny url implementation?
Ans. 
Design a system to create and manage short URLs for long URLs.
• Use a database to store mappings of short URLs to long URLs.

• Generate a unique short URL for each long URL using a hashing algorithm.

• Implement a redirect service to redirect users from short URLs to long URLs.

• Consider adding expiration dates for short URLs to manage storage.

• Implement analytics to track usage of short URLs.
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