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: PostgreSQL Row-Level Security for Multi-Tenancy

    The shared ‘reports’ table lets the app role read every tenant’s rows. Enable Row-Level Security and add a policy so each session only sees its own tenant — defense in depth at the data layer.

  • Securing Cloud Storage: S3 Bucket Policies and IAM Hardening

    Cloud storage leaks when identity and object permissions do not match. CompTIA Security+ (SY0-701) tests that control pattern: who may touch stored data, under which rule, and who still owns the configuration after the provider hosts the disks. Amazon Simple Storage Service (S3) is one vendor’s object store. An object store keeps files as objects…

  • 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.

  • Defending the Enterprise Core: Active Directory Forest Hardening & Kerberos Security

    Active Directory Domain Services (AD DS) stores identities, group memberships, and trust decisions for most Windows enterprises. Kerberos is the ticket protocol those domain controllers use to prove who a user or service is without sending a password to every server.

  • 220-1202 Lab: Bash Scripting for File Management

    Use the Linux shell to create a directory tree, move a report into it, set least-privilege permissions with chmod, and verify with stat.

  • 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.

  • 220-1201 Lab: 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…