Legacy Haven University

Category: A+ Core 1 (220-1201)

The CompTIA A+ Core 1 (220-1201) exam serves as the foundational standard for understanding physical IT hardware, peripheral connectivity, local networking, and client-side virtualization. Modern helpdesk and field technicians must be proficient at configuring motherboards, troubleshooting mobile display assemblies, provisioning virtual machines, and maintaining multi-function printers.

This resource category provides technical reference sheets, performance-based question (PBQ) preparation workflows, and systematic troubleshooting flowcharts aligned directly with the 220-1201 objectives. Explore component compatibility matrices, cable and connector pinout guides, wireless frequency standards, and hardware diagnostic methodologies to ensure first-time exam success and day-one operational effectiveness.

  • SY0-701 Lab: Linux Live-Response DFIR Triage

    A Linux web host is beaconing out. Do live-response triage: list processes to find the masquerading binary, find its C2 connection, uncover cron persistence, then kill the process to contain — collecting volatile evidence in the right order.

  • Architecting High Availability: Active-Active vs Active-Passive Clusters

    High availability (HA) keeps a service reachable when a node, a path, or a site fails.

  • CAS-005 Lab: Vault & Kubernetes Secrets Management

    Stop hardcoding database credentials in manifests. Store them in Vault’s KV engine, then create and verify a Kubernetes secret the app pod can mount.

  • Never Hardcode Secrets: Scaling Enterprise Secrets Management with HashiCorp Vault

    Hardcoded secrets turn source code, images, and pipelines into credential stores. CompTIA SecurityX (CAS-005) treats that as an identity problem and as an attack-surface problem. Domain 3.1 names secrets management as tokens, certificates, passwords, and keys, plus rotation and deletion.

  • 220-1202 Lab: Encrypting Drives with BitLocker & EFS

    The HR laptop stores sensitive files. Encrypt the whole OS drive with BitLocker (TPM + recovery key), then encrypt just the HR folder with EFS — and learn exactly when to reach for each.

  • Security Best Practices: BitLocker & EFS

    A stolen drive still holds every file on it unless the technician encrypted the data first. CompTIA A+ Core 2 (220-1202) groups three Windows controls for that job under objective 2.2: BitLocker, BitLocker-To-Go, and Encrypting File System (EFS).

  • 220-1201 Lab: MDM Configuration Basics

    The company is rolling out managed iPhones and Android tablets. Build the MDM security baseline: pick the policies that actually harden a fleet, then map MDM concepts and complete an enrollment profile.

  • Mobile Device Hardware & Screen Replacements

    A cracked lid is a ticket, not a 1.1 parts list. Core 1 asks you to monitor the hardware CompTIA names, pick the right replacement technique for those parts, and tell a broken panel apart from a dead digitizer, a dim backlight, or a swollen battery.

  • N10-009 Lab: HAProxy Load Balancing & Health Checks

    A single web server is a bottleneck and a SPOF. Inspect the HAProxy config, add a second backend server with round-robin balancing and health checks, validate, reload, and prove requests alternate across servers.

  • Wireless Networking: Wi-Fi 6, 7 & WPA3

    Wireless fails when the access point (AP) sits on a crowded channel, uses a weak passphrase, or advertises the same name as a rogue radio. CompTIA Network+ (N10-009) tests whether you can select the band, the channel plan, the encryption mode, and the AP type before clients join.