Roche Diagnostics Technical Lead Interview Questions, Process, and Tips

Q1. Write a program for stack implementation.
Ans. 
Implement a stack using an array in a programming language of your choice.
• Create a class or struct to represent the stack

• Use an array to store the elements of the stack

• Implement push, pop, and peek operations

• Handle stack overflow and underflow cases
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Asked me to sort array 30 discussion how many hair cuts in 1year in india

Q1. What is web socket
Ans. 
Web socket is a communication protocol that provides full-duplex communication channels over a single TCP connection.
• Web socket allows for real-time, bi-directional communication between a client and a server.

• It is commonly used in applications that require live updates, such as chat applications or online gaming.

• Web socket connections are initiated through a handshake process and can remain open for as long as needed.

• ...read more
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Q2. How many haircuts in india in 24 hours
Ans. 
It is impossible to accurately determine the number of haircuts in India in 24 hours without specific data.
• The number of haircuts in India in 24 hours would depend on the population, number of hair salons, and average time taken for a haircut.

• Factors such as holidays, weekends, and special events could also affect the number of haircuts in a day.

• Without concrete data on the above factors, it is not possible to provide
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Q3. Auth2 vs jwt explain in detail
Ans. 
OAuth2 is an authorization framework while JWT is a token format for authentication.
• OAuth2 is an authorization framework used for delegated access to resources.

• JWT is a token format that can be used for authentication and information exchange.

• OAuth2 involves obtaining an access token from an authorization server.

• JWT is a self-contained token that contains user information and can be verified without querying a database...read more
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Q4. How ssl works and proxy works
Ans. 
SSL works by encrypting data transmitted between a client and server, while a proxy acts as an intermediary for requests.
• SSL (Secure Sockets Layer) encrypts data transmitted between a client and server to ensure privacy and security.

• SSL uses cryptographic protocols to establish a secure connection, typically using public key infrastructure (PKI).

• A proxy server acts as an intermediary between a client and server, forwar...read more
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