CompTIA 220-1201 Dumps Questions Answers

DHCP Dynamic Host Configuration Protocol is the service that automatically assigns IP addresses and other essential network settings to devices when they join a network. Instead of manually configuring each device with an IP address, subnet mask, default gateway, and DNS servers, a DHCP server provides these settings dynamically from a defined address pool. This reduces configuration errors, prevents IP conflicts, and makes network administration easier—especially in environments with many devices or frequent changes. In the DHCP process, a client broadcasts a request, the DHCP server offers an address, the client requests that offered address, and the server acknowledges it, granting the device a lease for a specific period. The lease can be renewed, and administrators can also configure reservations to always give the same IP to a particular device based on its MAC address.

DNS is used for resolving hostnames to IP addresses, not assigning them. SMTP is for sending email between mail servers and clients. SNMP is used for monitoring and managing network devices. Therefore, DHCP is the correct service for automatically assigning IP addresses.

The IEEE standard for Wi-Fi 7 is 802.11be, also known as Extremely High Throughput (EHT). According to CompTIA Core 1 (220-1201) networking standards objectives, each Wi-Fi generation corresponds to a specific IEEE 802.11 amendment. Wi-Fi 7 builds upon Wi-Fi 6/6E by offering significantly higher throughput, lower latency, and improved performance in high-density environments.

Option 802.11be is the only choice that represents a wireless LAN (WLAN) standard. 802.1X is an authentication framework used for network access control, not a Wi-Fi standard. 802.3at defines Power over Ethernet Plus (PoE+), which supplies electrical power over Ethernet cables. 802.15.1 is the IEEE standard for Bluetooth.

CompTIA expects candidates to recognize and differentiate wireless standards and their IEEE designations, especially newer technologies such as Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7. Identifying 802.11be as Wi-Fi 7 is essential for both exam success and real-world networking scenarios.

OLED (Organic Light-Emitting Diode) technology can turn off individual pixels completely, producing “true black” and resulting in the highest contrast ratios compared to other display types.

From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 – Display types and features:

“OLED displays provide superior contrast by emitting light per pixel, allowing perfect black and extremely high contrast ratios.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Display Technologies

CompTIA Exam Objectives 220-1101, Domain 3.1

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