Hard 220-1201 practice questions
Challenge — multi-step scenarios, trade-offs, and subtle distinctions. 8 hard questions available — no sign-up, always free.
A technician deploys a new DHCP server in the server VLAN (10.10.1.0/24). Workstations in the accounting VLAN (10.10.5.0/24) are all receiving 169.254.x.x addresses, while devices in the server VLAN get proper leases. The router between the VLANs is functioning and can route traffic once addresses are set manually. What should the technician configure to fix the accounting VLAN?
A technician installs an add-on M.2 NVMe SSD into the second M.2 slot on a desktop motherboard. After booting, they notice that two of the board's SATA ports no longer detect the drives that were previously connected to them. All other hardware works normally. What is the MOST likely cause?
A technician replaces a workstation's Ethernet cable and reconnects it to the switch. The link comes up, but users report extremely slow file transfers and intermittent connectivity. Checking the switch, the port shows a large number of late collisions and CRC errors, and the port is running at 100 Mbps while the NIC reports 100 Mbps full duplex. Which of the following is the MOST likely cause?
A user reports that their laptop's display shows faint horizontal bands and occasionally flickers, but only after the machine has been running for about 30 minutes. When cold, the screen is perfectly clear. An external monitor connected to the laptop never shows any bands or flickering, even after hours of use. Which component is the MOST likely cause?
A conference room DLP projector has recently started showing brief flashes of red, green, and blue streaks across the image, accompanied by a faint rattling sound from inside the unit. The image is otherwise sharp and correctly aligned. The technician has already verified the source cable and confirmed the same behavior occurs with multiple input devices. Which component is the MOST likely cause of this symptom?
A technician is setting up a small office network and needs to fit exactly 30 usable host addresses on a single subnet while wasting as few addresses as possible. Which subnet mask should the technician assign?
A technician installs a new PCIe x16 graphics card in a desktop. After the upgrade, the system boots normally but the M.2 NVMe data drive (a secondary drive, not the boot drive) no longer appears in the OS or in the UEFI storage list. The boot drive and all other components work fine. What is the MOST likely cause?
Users in an open-plan office report that Wi-Fi becomes noticeably slow every weekday afternoon but performs fine in the mornings. The office is on the 5th floor of a building shared with several other tenants. A wired connection to the same access point remains fast at all times of day. What is the MOST likely cause of the afternoon slowdown?