CompTIA 220-1201 - CompTIA A+ Core 1 Exam (2026)

Comprehensive and Detailed Explanation From Exact Extract (Aligned With CompTIA A+ 220-1201 Study Guide)

To run Secure Boot, the system must have:

✔ UEFI firmware (not legacy BIOS)

Secure Boot is a UEFI feature that validates bootloaders using digitally signed keys stored in secure firmware.

✔ TPM (Trusted Platform Module)

The TPM stores cryptographic keys in tamper-resistant hardware, enabling secure key management that cannot be altered by normal users.

CompTIA materials describe TPM as essential for enhanced platform security and for storing validated boot keys when Secure Boot is enabled.

Together, UEFI + TPM provide:

Verified boot loader

Hardware-level key protection

Prevention of unauthorized OS tampering

Non-user-controllable secure key storage

Why the other options are incorrect

A. VDI – Virtual desktops; unrelated to Secure Boot hardware requirements.

B. BIOS password – Helps protect firmware settings but is not required for Secure Boot.

E. Disabled boot drive – Irrelevant to Secure Boot.

F. USB permissions – Not part of Secure Boot requirements.

Final Answer: C, D

If print quality remains poor after replacing the ink cartridge, the next step is to clean the printheads. Printheads can become clogged with dried ink, especially in inkjet printers, causing streaks or faded output.

From the CompTIA A+ 220-1101 Official Study Guide, Objective 4.3 – Troubleshoot printing problems:

“Poor print quality after replacing cartridges is commonly caused by clogged or dirty printheads. Use the printer ' s cleaning cycle or manually clean the printheads as needed.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Printer Troubleshooting

CompTIA Exam Objectives 220-1101, Domain 4.3

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When a device shows asnot connectedeven though it previously paired, the most effective action is tore-pair the devices. This resets the Bluetooth connection, clears any corruption in pairing profiles, and re-establishes communication.

Option A:Entering a PIN is only relevant during initial pairing and may not be prompted again.

Option B:Turning off Wi-Fi doesn’t typically affect Bluetooth; they operate on similar frequencies but don’t conflict this way in normal use.

Option D:If Bluetooth were disabled, the device wouldn’t appear at all, not just show as “not connected.”

CompTIA A+ Core 1 Exam Objective Reference:

Objective 1.5: Given a scenario, connect and configure accessories and ports of mobile devices.

If a user can send email but cannot receive email, the most likely issue is with the incoming mail configuration rather than the outgoing mail configuration. SMTP is primarily used for sending mail from a client to a mail server (and between mail servers), so working outbound email strongly suggests SMTP settings are correct. To receive email, the client must connect to an incoming mail service such as IMAP (or POP3). Therefore, the first setting to verify on the laptop is the IMAP configuration, including the incoming server address, port number, encryption method (SSL/TLS), and authentication credentials. If any of these are wrong, the client may fail to synchronize the mailbox, making it appear that mail is not arriving even though messages exist on the server.

DNS can affect both sending and receiving because clients must resolve mail server hostnames, but when the symptom is specifically “send works, receive fails,” checking the dedicated incoming protocol settings is the most direct and likely fix. DMARC is an email authentication policy used at the domain level and is not a laptop-side setting the technician would check first for a single user’s inbound mail problem.

When a printer only provides basic functionality (such as simple printing without duplexing, color management, stapling, or finishing options), this typically indicates that the system is using a generic or basic printer driver rather than the full-featured driver from the printer manufacturer. According to CompTIA Core 1 (220-1201) printing and troubleshooting objectives, advanced printer features are enabled through manufacturer-specific drivers, which expose all hardware capabilities to the operating system.

Operating systems often install default or class drivers automatically, especially when printers are connected via USB or discovered on a network. While these drivers allow basic printing, they do not include proprietary features such as high-resolution settings, tray selection, finishing units, or secure printing options. Installing the correct driver package from the printer manufacturer ensures full compatibility and unlocks advanced functionality.

Restarting the OS or modifying printer settings will not add missing features if the correct driver is not installed. OS-provided patches are designed to fix bugs or compatibility issues, not to enable vendor-specific printer capabilities.

CompTIA explicitly emphasizes verifying and installing manufacturer-recommended drivers as a key troubleshooting step when printer features are missing or limited.

F-type connectors are commonly used to terminate coaxial cables in cable internet, cable TV, and satellite connections.

From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 – Network cables and connectors:

“F-type connectors are used for coaxial cable terminations in cable modem and TV installations.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Networking Cables and Connectors

CompTIA Exam Objectives 220-1101, Domain 3.1

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The most effective solution to resolve this issue and prevent it from happening again is to assign the printer a static IP address. According to CompTIA Core 1 (220-1201) networking and printer configuration objectives, network printers should use static IP addresses to ensure consistent accessibility by client devices.

In this scenario, the printer was initially reachable using its assigned network address, but after several days it became unavailable. This commonly occurs when the printer is configured to receive its IP address via DHCP. When the DHCP lease expires or the printer is rebooted, the router may assign a different IP address, causing all workstations configured with the old address to lose connectivity.

By configuring a static IP address (or DHCP reservation), the printer’s IP address remains constant, ensuring that all workstations can reliably send print jobs without interruption.

A network gateway is used to route traffic between networks and does not address printer addressing issues. A USB cable would eliminate network printing entirely and is not appropriate for a SOHO network environment. APIPA addresses indicate a DHCP failure and would worsen connectivity rather than fix it.

CompTIA strongly emphasizes using static IP addressing for shared network devices such as printers to ensure stability and prevent recurring access problems.

In networked print environments, print jobs are processed through a system service called the print spooler. CompTIA A+ stresses that when shared printers fail due to job overload, the problem often lies with a hung or overloaded spooler service, especially when multiple jobs are sent simultaneously. The spooler queues, organizes, and processes print jobs; if it becomes overwhelmed or corrupted, printing stops completely even though the network and printer hardware remain functional.

After verifying network connectivity—as the question states— the next logical and CompTIA-aligned troubleshooting step is to restart the spooler service (D). Restarting it clears stuck or corrupt jobs, reinitializes print processing, and restores functionality without requiring a full server reboot or reinstallation of drivers.

Rebooting the server (A) may work but is unnecessarily disruptive and affects multiple services. Reinstalling printer drivers (B) is only warranted for driver corruption issues and is not the first step for spooler congestion. Resetting the printer to factory defaults (C) erases settings and is far too drastic for a simple print queue issue.

Therefore, the most efficient and technically correct action is restarting the print spooler service, restoring printing immediately while maintaining normal server operations.

Firewalls are specifically designed to monitor, filter, and control network traffic using Access Control Lists (ACLs). ACLs define which traffic is allowed or denied based on parameters like IP address, protocol, or port.

From CompTIA A+ 220-1101 Official Study Guide, Objective 2.2 – Networking hardware and security:

“Firewalls use access control lists (ACLs) to allow or deny traffic based on rules. Unmanaged switches and PoE injectors do not support ACLs.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Networking Security Devices

CompTIA Exam Objectives 220-1101, Domain 2.2

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APrivate Cloudis operated solely for a single organization. It ishosted on-premises or in a dedicated off-site data center, giving the company full control over data, security, and compliance often hosted in theorganization’s own local data center.

Option B (Public):Hosted by third-party providers and shared by multiple clients.

Option C (Hybrid):Combines private and public cloud resources.

Option D (Community):Shared by several organizations with similar goals.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 4.1: Compare and contrast cloud computing concepts.

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Desktop computers most commonly use DIMM modules (Dual Inline Memory Module) for system memory. DIMMs are the standard full-size RAM sticks installed in desktop motherboard memory slots and are available in modern DDR generations such as DDR4 and DDR5. CompTIA A+ Core 1 expects you to distinguish common form factors: desktops use DIMM, while laptops typically use SO-DIMM (Small Outline DIMM).

The other options are either specialized memory types or not the typical “type” used to describe desktop installation. Static refers to SRAM (static RAM), which is used for CPU cache and other internal high-speed buffers, not for installing system RAM modules in a desktop. ECC (Error-Correcting Code) memory is used mainly in servers/workstations where data integrity is critical and requires motherboard/CPU support; it is not the most likely choice for a typical desktop upgrade. Registered (buffered) memory is also primarily for servers and compatible platforms, improving stability with large memory configurations but not common in standard desktops. Therefore, the best answer for typical desktop RAM installation is DIMM.

If a printer is set to use a special tray (for cards/invitations) but a different type of print job is attempted (like a letter), a paper tray setting mismatch can cause errors. Changing the tray setting to match the print media resolves the issue.

From CompTIA A+ 220-1101 Official Study Guide, Objective 4.3 – Troubleshooting printers:

“If print jobs fail when media type changes, verify and adjust the paper tray settings to match the required output.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Printer Troubleshooting

CompTIA Exam Objectives 220-1101, Domain 4.3

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System overheating is the most likely cause of repeated shutdowns when the battery still has sufficient charge. Modern laptops monitor CPU, GPU, and internal system temperatures. If temperatures exceed safe limits, the system may first reduce processor performance through thermal throttling and then shut down automatically to prevent permanent component damage. Common causes include blocked ventilation openings, accumulated dust, a failed cooling fan, dried thermal compound, or using the laptop on a surface that obstructs airflow. Malware, corrupted RAM, and outdated drivers can cause instability, crashes, or performance problems, but they are less directly associated with protective power shutdowns. The technician should inspect airflow, verify fan operation, check internal temperatures, and clean the cooling system before replacing other hardware. Repeated shutdowns during demanding workloads provide especially strong evidence of a thermal problem.

Channel width can be adjusted to improve wireless performance when multiple nearby networks are competing for radio spectrum. Wider channels can provide greater theoretical throughput, but they consume more spectrum and are more likely to overlap with neighbouring networks. In a congested environment, reducing the channel width—for example, from 40MHz to 20MHz on the 2.4GHz band—can reduce interference, retransmissions, and channel contention. The correct configuration therefore depends on the surrounding wireless environment, but channel width is the only listed setting that directly affects spectrum usage and performance. Hiding the SSID merely prevents the network name from appearing in ordinary discovery lists and does not reduce interference. MAC filtering is an access-control mechanism and provides no meaningful performance improvement. AES is an encryption algorithm used with wireless security protocols; it protects traffic confidentiality but does not resolve overlapping-channel or congestion problems.

Cellular networks offer broad coverage in rural or less populated areas where laying fiber, cable, or DSL lines may not be feasible or cost-effective. Cellular broadband (4G LTE/5G) provides fast speeds using existing mobile network infrastructure.

From CompTIA A+ 220-1101 Official Study Guide, Objective 2.7 – Compare and contrast Internet connection types:

" Cellular connections offer high speed and extensive coverage, especially in areas where other wired infrastructure may not exist or be practical. "

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Internet Connections

CompTIA Exam Objectives 220-1101, Domain 2.7

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