Author: Cree Dalene
-
Introduction to Linux Desktop & Bash
Linux on a workstation gives a technician a desktop GUI plus a shell that talks straight to the kernel. A+ Core 2 tests whether you can identify that client stack and drive it with the command set in objective 1.9. Helpdesk tickets still land on Ubuntu laptops, Fedora workstations, and mixed labs.
-
Provisioning Your First Virtual Machine
Provision a cloud VM by completing the launch wizard steps in order, then answer service-model and shared-responsibility questions.
-
Cloud Concepts: IaaS vs PaaS vs SaaS for A+
Technicians lose tickets when they treat every cloud product as the same product. CompTIA A+ Core 1 (220-1201) objective 4.2 requires you to summarize cloud computing concepts, and the exam separates those products by who provisions the stack and who still owns the work.
-
N10-009 Lab: Configuring Single-Area OSPF
On the edge router, bring up OSPF area 0 across the LAN and WAN links, verify adjacency, then lock down management access with an extended ACL.
-
Routing Protocols Explained: OSPF vs BGP (CompTIA Network+ N10-009)
Routers move packets between networks. They do that job only when they know a next hop for each destination. Static routes and dynamic routing protocols fill that table. CompTIA Network+ N10-009 objective 2.1 tests how those sources compete: static vs dynamic, OSPF vs BGP vs EIGRP, then administrative distance, prefix length, and metric. Candidates who…
-
Securing the Software Pipeline: SAST vs DAST for Security+
Unpatched application flaws reach production when teams scan too late, scan only one layer, or treat a green build as a secure build. CompTIA Security+ (SY0-701) treats that failure as a vulnerability-management problem: you identify weaknesses in code at rest and in the running application, then you confirm, prioritize, and fix them before attackers reuse…
-
Securing API Authorization: OAuth 2.0 Grant Types and Token Hardening
Broken API authorization hands an attacker a valid session without stealing a password. CompTIA SecurityX (CAS-005) treats that failure as an architecture and engineering problem: objective 2.5 requires API authorization, logging, and rate limiting; objective 2.6 requires continuous authorization and explicit subject-object relationships; objective 3.1 requires you to operate Open Authorization (OAuth) and to rotate…
-
Software Troubleshooting Frameworks for CompTIA A+ Core 2 (220-1202)
Software troubleshooting frameworks exist to stop guesswork. They force a technician to isolate a symptom, name a probable cause, test that cause, and restore the system without destroying user data. CompTIA A+ Core 2 (220-1202) weights Software Troubleshooting at 23 percent of the exam and tests that process across Windows, mobile operating systems, and security…
-
Network Hardware: Switches, Routers & Firewalls
Switches, routers, and firewalls keep local traffic moving, move packets between networks, and block traffic that policy rejects. CompTIA A+ Core 1 (220-1201) objective 2.5 asks you to compare these devices by the problem each one solves, the address it reads, and the OSI layer where it makes its decision.