220-1201 Exam Dumps - CompTIA A+ Questions and Answers

ECC (Error-Correcting Code) RAM is commonly used in servers to provide error detection and correction, improving reliability in critical systems. It is designed to detect and correct single-bit errors, ensuring data integrity in environments where stability is paramount.

Option A (SODIMM): Incorrect. SODIMM is typically used in laptops, not servers.

Option B (Rambus): Incorrect. Rambus is an outdated RAM type and not commonly used today.

Option C (DDR3): Incorrect. While DDR3 is a type of RAM, it is not specific to servers and does not provide error correction.

Older motherboards use 20-pin connectors, while newer power supplies use 24-pin connectors. An adapter resolves the compatibility issue cost-effectively.

Why Not A (Adjust the input voltage): Input voltage adjustment is unrelated to connector compatibility.

Why Not B (Install a modular power supply): While modular supplies are versatile, this doesn’t address the connector issue directly.

Why Not C (Rebuild the failed power supply): Rebuilding is costly and complex compared to using an adapter.

CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.4, power supply compatibility​.

Comprehensive and Detailed Explanation From Exact Extract:

RAID 6 uses two parity blocks, allowing it to tolerate the failure of two drives without losing data.

Tethering refers to sharing a mobile phone’s internet connection with another device, such as a laptop, either through USB, Bluetooth, or Wi-Fi. Tethering effectively turns the mobile phone into a personal hotspot for internet access.

Option A (IR): Incorrect. Infrared (IR) is used for short-range communication, such as remote controls, but it does not support internet sharing.

Option B (NFC): Incorrect. Near-field communication (NFC) is used for close-proximity data transfer, not for internet sharing.

Option C (Wi-Fi Direct): Incorrect. Wi-Fi Direct enables device-to-device communication but does not inherently provide internet sharing.

When port issues persist after moving to a different switch port, the next logical troubleshooting step is to test the patch cable. Faulty or damaged cables are a common cause of network connectivity problems. Using a cable tester between the computer and the network closet verifies the integrity of the cable and rules out a physical layer issue.

From CompTIA A+ 220-1101 Official Study Guide, Objective 4.2 – Troubleshoot wired and wireless networks:

“If a device continues to experience connectivity issues after switching ports, test the cabling with a cable tester to check for continuity, shorts, or pinout issues before replacing hardware.”

Verified Source:

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

CompTIA Exam Objectives 220-1101, Domain 4.2

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A hybrid environment combines both on-premises infrastructure and cloud-based resources, allowing virtual machines to operate seamlessly between the two. CompTIA A+ describes hybrid cloud as a deployment model where organizations maintain their own private servers or virtualization hosts while also leveraging public cloud platforms such as AWS, Azure, or Google Cloud. This model supports flexibility, scalability, and gradual migration, making it ideal for businesses not ready to fully abandon local infrastructure.

In this model, workloads can move between the local environment and the cloud depending on performance requirements, cost considerations, or redundancy needs. Additionally, hybrid clouds allow resource sharing, data synchronization, and load balancing across both environments.

A public cloud hosts resources entirely in the provider’s data center, offering no on-premises integration. A private cloud exists solely within the organization’s infrastructure with no external shared resources. SaaS delivers applications, not infrastructure, meaning it cannot host or manage virtual machines.

Therefore, an environment where VMs exist both on-site and in the cloud is best described as a Hybrid cloud.

The first security step after deploying a new router is to change the default administrative password. Default credentials are well known and pose a security risk if left unchanged.

From CompTIA A+ 220-1101 Official Study Guide, Objective 2.3 – Secure a wireless network:

“Always change default administrative credentials before further configuration to prevent unauthorized access.”

Verified Source:

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

CompTIA Exam Objectives 220-1101, Domain 2.3

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A PoE (Power over Ethernet) switch transmits both data and electrical power over Ethernet cables to devices like wireless access points or VoIP phones. This is especially useful in areas where separate power sources are not available.

ECC (Error-Correcting Code) RAM is commonly used in servers because it can detect and correct memory errors, providing greater stability and reliability for mission-critical environments.

From CompTIA A+ 220-1101 Official Study Guide, Objective 3.2 – Types of RAM:

“Servers often require ECC memory, which can detect and correct single-bit errors, preventing data corruption and increasing system reliability.”

Verified Source:

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

CompTIA Exam Objectives 220-1101, Domain 3.2

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Comprehensive and Detailed Explanation (100–150+ words):

Secure printing ensures that print jobs are not immediately output to the tray but instead held in a secure queue. The user must enter a PIN, password, or badge authentication directly at the printer to release the job. CompTIA A+ emphasizes secure printing as the correct method for environments where sensitive information such as HR files, performance reviews, or confidential reports must not be viewed by unauthorized individuals.

Audit logging tracks usage but does not protect documents from being seen on the printer tray. Wired connectivity has no relation to security or confidentiality. Duplex is simply a printing mode.

Secure printing is widely used in corporate environments so shared devices can remain shared without compromising sensitive data. The A+ curriculum describes this as a security control that ensures confidentiality in shared-print environments, making Secure Printing the proper solution.