CompTIA A+ case studies
CompTIA A+ · Put your knowledge to work in context.
CompTIA A+ is CompTIA's entry-level certification for people beginning a career in information technology support. CompTIA describes it as covering "core IT support and troubleshooting" - the day-to-day work of keeping end-user devices, networks, and user accounts running. The CompTIA A+ case studies are 5 cases and about 4,619 words.
1The Fleet That Discharges While Docked
A regional parcel carrier operates 60 rugged Android tablets mounted in delivery vans. Drivers scan 400-600 parcels per 10-hour shift, and the tablets run GPS, a cellular data connection, and the scanning app continuously.
865 words, about 4 min2One Uplink, Four Subnets, and a 3 P.M. Backup
A client is consolidating three small offices into one three-floor building: 140 desk employees, 60 VoIP handsets, 30 wireless access points, 20 networked printers, and a guest network serving roughly 200 visitors per week. The previous tenant left a flat 192.168.1.0/24 with a single DHCP scope, unmanaged 24-port switches, and one Cat5e uplink daisy-chaining each floor's IDF to the MDF.
861 words, about 4 min3Twelve CAD Workstations, One Circuit
Your firm is standardizing 12 engineering workstations for 2D and 3D CAD. The approved build is a 16-core CPU (125 W TDP, roughly 200 W package peak), a 320 W professional GPU, 2 x 32 GB DDR5-5600, an 850 W 80+ Gold PSU, and a motherboard with two M.2 slots and two x16-length PCIe slots.
1,028 words, about 5 min4Everything to the Cloud, Including the Drawings
An 85-person architecture firm runs 14 VMs on two hosts (32 cores and 512 GB RAM each) backed by a 40 TB SAN with 22 TB used. Workloads are two domain controllers, a file server, an ERP application with SQL Server, two CAD license servers, a VDI pool for 20 contract drafters, and backup.
899 words, about 4 min5The Dock Doors, the Conveyor, and the Rebooting AP
A 120 m by 80 m distribution warehouse with 8 m steel racking runs 40 handheld Wi-Fi scanners on 2.4 GHz and 14 access points set to channels 1, 6, and 11 at full transmit power. Between 06:00 and 08:00, when the north dock doors open and three 480 V conveyors run, scanners near the dock lose association and re-roam every 30 to 90 seconds.
966 words, about 5 min