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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q56-Q61):

NEW QUESTION # 56
Which of the following could a user employ to maximize module bandwidth when selecting memory for a high-end gaming computer?

A. Error correction
B. Physical module size
C. RAM voltage
D. Channel configuration

Answer: D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
Channel configuration(e.g.,dual-channel,quad-channel) determines how memory modules communicate with the memory controller. Usingmatched pairs in dual- or quad-channel setupscan significantlyincrease memory bandwidth, improving performance - especially for gaming and video-intensive tasks.
* Option A (Error correction):ECC RAM is used in servers for reliability, not performance or gaming.
* Option B (RAM voltage):Affects compatibility and overclocking but not bandwidth.
* Option D (Physical size):Refers to module form factor (e.g., DIMM, SO-DIMM) and does not impact bandwidth.
CompTIA A+ Core 1 Exam Objective Reference:
* Objective 3.2: Given a scenario, install RAM types.

NEW QUESTION # 57
Which of the following DNS record types is used to direct email to a mail server?

A. SOA
B. MX
C. SRV
D. CNAME

Answer: B

Explanation:
An MX (Mail Exchange) record specifies the mail server responsible for receiving email for a domain.
Why Not A (CNAME): CNAME is used for domain aliasing, not for email delivery.
Why Not B (SRV): SRV records are used to locate specific services, not mail servers.
Why Not D (SOA): SOA records provide domain information but do not handle email.
CompTIA A+ Exam Reference: Core 1 (220-1201), Section 2.6, DNS record types.

NEW QUESTION # 58
A financial institution needs a secure way to protect encryption keys used for unlocking chips on its credit cards Which of the following should the institution use?

A. AMD
B. HSM
C. TLS
D. ARM

Answer: B

Explanation:
A Hardware Security Module (HSM) securely manages cryptographic keys, including those used to protect credit card chips.
Why Not A (TLS): TLS secures data in transit, not encryption key storage.
Why Not B (AMD): AMD refers to processors, not security modules.
Why Not D (ARM): ARM is a processor architecture, not a cryptographic security solution.
CompTIA A+ Exam Reference: Core 2 (220-1102), Section 2.5, cryptographic hardware.

NEW QUESTION # 59
An IT specialist compares Bluetooth and NFC technologies for mobile device connectivity. Which of the following statements accurately describes a key difference between the two?

A. NFC is faster than Bluetooth when transferring large files between devices.
B. NFC requires pairing with the receiving host, whereas Bluetooth just needs the available connection.
C. NFC works best within a few centimeters, but Bluetooth can connect devices that are up to 32ft (10m) apart.
D. NFC consumes more power than Bluetooth, making it less suitable for devices in which battery conservation is crucial.

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:
NFC (Near-Field Communication)operates atvery short ranges - usually less than 4cm, and is ideal for quick, secure transactions like contactless payments.Bluetoothsupportslonger ranges (up to 10 meters or 32 feet)and is suited for ongoing connections like wireless headsets or file transfers.
* Option A:Bluetooth is faster for large file transfers.
* Option B:NFC usesless power, not more.
* Option C:NFC doesnotrequire pairing - Bluetooth does.
CompTIA A+ Core 1 Exam Objective Reference:
* Objective 1.5: Given a scenario, connect and configure accessories and ports of mobile devices.

NEW QUESTION # 60
Which of the following is the best to use when testing a file for potential malware?

A. Multitenancy
B. Cross-platform virtualization
C. Sandbox
D. Test development

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
A sandbox is a secure, isolated environment used to test potentially harmful software or code. It prevents the software from affecting the main system, allowing safe malware testing. Thismethod is standard in cybersecurity best practices.
#Reference: "CompTIA A+ Certification All-in-One Exam Guide" by Mike Meyers - Chapter 28, page 1230.

NEW QUESTION # 61
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