Fitato Health Solutions Interview Questions and Answers

ReactJS and PHP based User Management Portal

Q1. DSA - to find frequency of numbers in an array
Ans. 
Use a hashmap to store the frequency of each number in the array.
• Create a hashmap to store the frequency of each number in the array.

• Iterate through the array and update the frequency in the hashmap.

• Return the hashmap with the frequency of each number.
Answered by AI
Add your answer
Q2. Default Session time in PHP
Ans. 
The default session time in PHP is 24 minutes.
• Default session time in PHP is 24 minutes

• Session time can be changed using the 'session.gc_maxlifetime' directive in php.ini file

• Session time can also be set using the 'session_set_cookie_params()' function in PHP
Answered by AI
Add your answer
Q3. SQL - Get list of duplicate emails
Ans. 
SQL query to retrieve duplicate email addresses from a table
• Use GROUP BY and HAVING clause to identify duplicates

• Select the email column and count the occurrences

• Filter the results to show only emails with count greater than 1
Answered by AI
Add your answer
Q4. React useContext
Add your answer
Q5. CORS applications and how to enable it
Ans. 
CORS allows web applications to make requests to a different domain than the one it originated from.
• CORS is enabled on the server side by setting the 'Access-Control-Allow-Origin' header to specify which domains are allowed to make requests.

• Options requests are sent by the browser to check if the server allows the actual request. The server should respond with the appropriate headers.

• CORS can be configured to allow spe...read more
Answered by AI
Add your answer
Q6. How to fetch lakhs of records fast in an application?
Ans. 
Use indexing, pagination, caching, and optimized queries to fetch large amounts of data quickly.
• Utilize indexing on database columns to speed up search queries.

• Implement pagination to limit the number of records fetched at once.

• Use caching mechanisms to store frequently accessed data and reduce database load.

• Optimize queries by selecting only necessary columns and avoiding unnecessary joins.

• Consider using asynchronous ...read more
Answered by AI
Add your answer