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

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To ensure seamless connectivity during (and after) migrating an application server, the best DNS approach in CompTIA A+ Core 1 (220-1201) terms is to use a CNAME (Canonical Name) record, which creates an alias from one hostname to another. Instead of users connecting directly to a server’s changing hostname, they connect to a consistent service name (for example, app.company.com). That name can be configured as a CNAME pointing to the current host (such as server1.company.com). When the application is moved to a new server, the technician updates what the alias ultimately resolves to (or updates the target host’s A/AAAA record), and clients continue using the same familiar application URL/name—minimizing disruption and avoiding the need to reconfigure endpoints across devices.

The other record types are not designed for this purpose. TXT records store text-based information (often verification or policy data). SPF and DKIM are email authentication-related mechanisms (typically implemented via TXT records) used to validate authorized mail senders and message integrity—not application server migration. Because the goal is maintaining a stable name for a service while the underlying host changes, CNAME is the correct record type.

The correct answer is B. NVMe SSD.

According to CompTIA A+ Core 1 220-1201 objectives under Hardware and Storage:

NVMe (Non-Volatile Memory Express) SSDs provide the fastest data access and retrieval speeds compared to other storage types, especially on laptops. NVMe SSDs use the PCIe interface, which allows significantly higher throughput and lower latency than SATA-based storage.

This improves boot times, application load times, and overall system responsiveness.

Why the other options are incorrect:

A. SATA M.2: While faster than traditional 2.5” SSDs and HDDs, SATA M.2 is limited by the SATA III interface (~600 MB/s), which is slower than NVMe SSDs (~3,000–7,000 MB/s).

C. Optical disk: Optical media (CD/DVD/Blu-ray) is extremely slow and not suitable for quick access or retrieval.

D. 7,200rpm HDD: Mechanical hard drives have the slowest access times and throughput compared to SSDs.

The most likely cause is system overheating . Laptops have limited internal space and depend on properly functioning fans, heat sinks, vents, and thermal controls. Dust accumulation, blocked vents, a malfunctioning fan, dried thermal compound, or sustained high processing load can cause the internal temperature to increase.

When the CPU or another component reaches a critical temperature, the laptop may shut down automatically to prevent permanent hardware damage. These shutdowns may appear unpredictable because they depend on temperature and workload rather than the displayed battery percentage.

Malware can increase processor usage and indirectly contribute to heat, but it is not the most direct answer.

RAM corruption generally produces crashes, freezes, memory errors, or operating-system stop errors.

Outdated drivers can cause instability but are less closely associated with repeated thermal shutdown behavior.

CompTIA objective 5.4 specifically lists overheating as a common mobile-device issue. Dell also identifies random shutdowns and reboots as symptoms of an overheating laptop.

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In the CompTIA A+ Core 1 (220-1201) exam objectives, cloud deployment models describe how and where computing resources are hosted and who has access to them. A private cloud is defined as a cloud environment that is dedicated to a single organization and may be hosted on-premises within the company’s own data center or in a dedicated external facility. Since the question states that the directory services server is located on premises, it indicates that the organization is hosting and managing its own infrastructure internally. This aligns directly with the definition of a private cloud deployment model.

Directory services—such as Microsoft Active Directory or LDAP-based services—are commonly deployed internally to manage user authentication, authorization, group policies, and resource access within an organization. When these services run on company-owned hardware inside the organization’s network, the infrastructure remains under the organization’s full administrative control, security policies, and management.

The other options do not match this scenario. A public cloud is hosted by third-party providers and shared among multiple customers ☁. A hybrid cloud combines on-premises infrastructure with public cloud services. A community cloud is shared by multiple organizations with similar requirements. Because the system is hosted internally for a single organization, the correct classification is Private Cloud .

An MX, or Mail Exchanger, record is a type of DNS resource record. It identifies the mail server responsible for accepting email for a particular domain. Consequently, an MX record is created or modified in the domain’s DNS zone , which is hosted on a DNS server.

Although the MX record points to a mail server, the record itself is configured through DNS. The mail server is the destination identified by the record, not the service in which the DNS record is stored.

A proxy server intermediates network requests, commonly for filtering, caching, or privacy.

A mail server sends, receives, and stores email, but DNS tells other systems how to locate it.

A print server manages printers and print jobs.

CompTIA objective 2.4 specifically includes DNS record types such as A, AAAA, CNAME, MX, and TXT. Microsoft also defines an MX record as a DNS resource record that identifies a domain’s mail server.

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The correct answer is D. Dual channel.

In the CompTIA A+ Core 1 (220-1201) hardware objectives, memory bandwidth refers to the amount of data that can be transferred between RAM and the CPU in a given amount of time.

Dual channel memory architecture increases bandwidth by:

Allowing the memory controller to access two memory modules simultaneously

Effectively doubling the data transfer rate compared to single-channel configurations

Improving overall system performance, especially in memory-intensive tasks

Why the other options are incorrect:

A. CAS latency

CAS latency measures the delay before data is available after a request. Lower latency improves response time, but it does not significantly increase total bandwidth.

B. ECC

ECC (Error-Correcting Code) improves reliability by detecting and correcting errors, but it does not increase data transfer bandwidth.

C. High clock speed

Higher clock speed does increase bandwidth, but not as significantly as enabling dual channel, which allows parallel data transfer paths and provides a greater overall increase.

Final Answer: D. Dual channel

The correct answer is A. 2.4GHz.

In the CompTIA A+ Core 1 220-1201 networking objectives, wireless networking technologies include frequency bands such as 2.4GHz, 5GHz, and 6GHz, along with related concepts like channels, regulations, channel selection, Bluetooth, 802.11 standards, NFC, and RFID.

The 2.4GHz band supports the most devices because it is the oldest and most widely adopted Wi-Fi frequency listed. Many legacy devices, including older laptops, printers, IoT devices, smart home devices, and wireless peripherals, still rely on 2.4GHz. It also has better range and wall penetration than higher-frequency bands, although it is usually more crowded and slower.

Why the other options are incorrect:

B. 5GHz

5GHz is newer than 2.4GHz and generally provides faster speeds with less interference, but it does not support as many older legacy devices.

C. 6GHz

6GHz is the newest Wi-Fi frequency option used with newer Wi-Fi standards, so it has the least legacy device support among the Wi-Fi frequency choices.

D. NFC

NFC is a short-range communication technology, not a Wi-Fi frequency band. It is used for close-proximity functions such as tap-to-pay, pairing, and access cards, so it is not the best answer.

Final Answer: A. 2.4GHz