Application Developer 2 Interview Questions and Answers

Design a scalable database to handle user requests during peak hours in a university setting.

• Implement load balancing to distribute user requests evenly across servers.

• Use caching mechanisms to reduce database load and improve response times.

• Optimize database queries and indexes to improve performance during peak hours.

• Consider sharding or partitioning the database to distribute data across multiple servers.

• Implement failover mechanisms to ensure high availability during peak...read more

A University Software Portal for students, faculty, and staff to access academic resources and information.

• User authentication for students, faculty, and staff

• Dashboard with personalized information and notifications

• Course registration and scheduling

• Access to grades, transcripts, and academic records

• Online library resources and research databases

• Communication tools for students and faculty (e.g. messaging, forums)

• Integration with learning management systems (e.g. Moodle, Blac...read more

SQL query to copy table structure without data

• Use CREATE TABLE AS SELECT statement

• Include WHERE clause to avoid copying data

• Example: CREATE TABLE new_table AS SELECT * FROM old_table WHERE 1=0

Print the first non-repeating character in a given string.

• Create a hash table to store the frequency of each character in the string.

• Iterate through the string and update the frequency of each character in the hash table.

• Iterate through the string again and return the first character with a frequency of 1.