After some testing, World Wide Hosting finds that their servers are not completely independent. If a server crashes due to a power surge, all backups after the failed server have a $20\%$ increased chance of failing. Note: The $20\%$ increased chance of failing will only be applied to each server one time.

a$.$ During a storm, the main server fails due to an electrical surge. What is the new probability of two backup servers given that an electrical surge has occurred?$|$

b$.$ What is the probability of a network outage if the main server fails due to an electrical surge?