Cybage SDE Interview Questions and Answers

Q1. Reverse a string
Ans. 
Function to reverse a given string.
• Create an empty string to store the reversed string.

• Iterate through the input string in reverse order and append each character to the new string.

• Return the reversed string.
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60 minutes of coding round with medium level of question asked

Coding and Aptitude MCQ questions

Q1. How i can design a login system for client?
Ans. 
Designing a login system for clients involves creating secure authentication methods and user management.
• Implement secure password hashing algorithms like bcrypt to store passwords securely.

• Use HTTPS to encrypt data transmission between client and server.

• Implement multi-factor authentication for added security.

• Utilize session management to keep track of user login status.

• Consider implementing account lockout mechanisms
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Q2. What is foreign key and how you can you can use foreign key in your DBMS system?
Ans. 
Foreign key is a key used to link two tables in a database, enforcing referential integrity.
• Foreign key is a column or a set of columns in one table that references the primary key in another table.

• It ensures that the values in the foreign key column(s) match the values in the primary key column of the referenced table.

• Foreign key constraints help maintain data integrity by preventing actions that would destroy links b...read more
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