Enterprise Distributed 2024

Question 1

When do yaml changes take affect? Can they be branch deployed?

Answer 1

When merged into master

Question 2

When deleting a resource method what are 3 necessary steps to take.

Answer 2

1. Check if the resource method is being called still (logfetch)
2. Delete the corresponding Client code
3. Check for references to that client code (should show up on logfetch)

Question 3

When deleting a client method what are 2 necessary steps to take?

Answer 3

1. Check for usages of that client
2. Check for usage’s of the underlying resource method and delete that as well.

Question 4

What 3 things are necessary for an app to be installed?

Answer 4

User, portal, and

Question 5

What does the LIMIT_BY_READ_WRITE parameter do?

Answer 5

On Vitess, this allows non transactional select statements to run in their own pool.

Question 6

What is a recommended way to santize username input from the login attempt to avoid security breach?

Answer 6

PreparedStatement - it uses the inputs as query parameters.

Question 7

How does one prevent Path Traversal Vulnerabilities?

Answer 7

1. Test for vulnerabilities
2. Work without user input when using fs calls
3. Use indexes instead of file names

Question 8

What is an OS command injection?

Answer 8

When commands are sent from a user and executed in the system shell without validation.

Question 9

What is an SSRF attack?

Answer 9

Server Side Request Forgery attack.

Question 10

What is a @Stashed Provider?

Answer 10

In Dependency Injection, it stores an instance of a dependency. Usually for use within the same request or session. Want to ensure the same instance is used throughout the scope of a call.

Question 11

What is Sharding vs Partitioning?

Question 12

What do you need to do before sharding?

Answer 12

Optimize queries, increase performance space. If disk is approaching 500GB.

Question 13

What do you need to do for I/O optimization?

Answer 13

Generally not sharding, optimize queries instead.