tfalcao

Below are the Big O performance of common functions of different Java Collections.


List                 | Add  | Remove | Get  | Contains | Next | Data Structure
---------------------|------|--------|------|----------|------|---------------
ArrayList            | O(1) |  O(n)  | O(1) |   O(n)   | O(1) | Array
LinkedList           | O(1) |  O(1)  | O(n) |   O(n)   | O(1) | Linked List
CopyOnWriteArrayList | O(n) |  O(n)  | O(1) |   O(n)   | O(1) | Array

tfalcao

Questions are not from any actual exam!!!  


Q: Create a secret that has the following username password data:
username=missawesome
password=123kube321
Create a pod running nginx that has access to those data items in a volume mount path at /tmp/secret-volume
log into the nginx pod you created and list the items and cat the output of the data items to a file "credentials.txt"