Skill check — HamChops

Skill check

On Linux, which signal does a default `kill <pid>` send?

SIGKILL (9) SIGTERM (15) SIGHUP (1) SIGINT (2)

What does `chmod 750 file` set the permissions to?

rwxr-xr-x (owner=rwx, group=r-x, other=r-x) rwxr-x--- (owner=rwx, group=r-x, other=---) rwxrwx--- (owner=rwx, group=rwx, other=---) r-xr-x--- (owner=r-x, group=r-x, other=---)

Which TCP flag combination opens a new connection?

SYN only SYN + ACK FIN + ACK RST + ACK

You ran `git reset --hard HEAD~1` then realized you needed those commits back. Best recovery?

They are gone — re-write the code `git revert HEAD` brings them back `git reflog` then `git reset --hard <sha>` from a prior entry `git pull` from origin will restore them

In Kubernetes, what is the smallest deployable unit?

Container Pod Deployment Node

Which metric is a leading indicator of latency-driven user pain in a request-handling service?

CPU utilization average p99 request latency Total request count Memory usage average

The CAP theorem says that during a network partition a distributed system must choose between…

Consistency and Availability Latency and Throughput Durability and Cost Strong consistency and high CPU

Which of these is the most accurate definition of an SLO?

A contract with the customer including refunds An internal target for service reliability, looser than the SLA A dashboard threshold that pages on-call The maximum allowed error budget

Where are you aiming?

Site Reliability Engineer Platform Engineer DevOps Engineer

How much can you study per week?

~2 hours / week ~5 hours / week 10+ hours / week

Building your roadmap…

HamChops

DevOps, SRE & Platform Engineering Learning Platform. Master your craft with spaced repetition.

Learn

Pricing

Support

Help
Privacy Policy
Terms of Service

We use cookies for authentication and to improve your experience. By continuing to use this site, you agree to our Privacy Policy.