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Thiago Falcão tfalcao

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  • Manaus, Brazil
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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"
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