Think Positive Cyber

Climbing Higher in Cybersecurity
Posted May 1, 2025 by Jeremiah O’Neal at 7265 Jackson Dr, San Diego, CA

Today, I hiked up Cowles Mountain in just over 27 minutes—a personal best that reflects how far I’ve come physically and mentally. After the hike, I headed to the library (computer 50, Room 104) and dove into Professor Messer’s Infrastructure Considerations lesson for Security+ (SY0-701 – 3.1 Availability).

I learned that organizations strive for 99.9999% uptime. Achieving that means investing in resilience—from redundant systems to rapid replacements. Mean Time To Repair (MTTR) measures how quickly a failed system can be fixed, impacting downtime and cost. Responsiveness and speed matter for user-facing applications, while scalability and elasticity help manage changing demands. Deploying applications smoothly takes coordination between web servers, databases, firewalls, and more—making project management critical.

I also learned about risk transference like cybersecurity insurance, and ease of recovery, such as reimaging systems to restore operations quickly. While most systems receive patches, others—like HVAC or time clocks—require network isolation for security.

Later, I updated my resume and applied for a promising role:
🔗 Cybersecurity Incident Support Technician – Joint Tactics and Technologies

Up next: I’ll continue studying with this video:
👉 https://www.youtube.com/watch?v=l64La1xYXL4

Tomorrow, I’ll share more about my resume progress.