Package Tracking Was Traceroute All Along — Understanding Route Tracing Through TTL
Introduction While studying CompTIA Network+, I couldn't fully understand how Traceroute and Tracert work. I could memorize them as the tool for traci…
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RTO vs RPO vs MTTR vs MTBF: the Security+ metrics people mix up, and how to keep them straight
You get a scenario question on the SY0-701. A company's database can lose at most 15 minutes of transactions, and it has to be back online within 2 ho…
Even Without Typing a Command — Understanding What show vlan Actually Shows
Introduction While studying for CompTIA Network+, I couldn't totally understand what "show VLAN command" shows. I have never typed command on my compu…