220-1201 Questions Bank

Identifying changes made to the system is the next step to troubleshoot why an application no longer launches, as recent changes often cause such issues.

Why Not A (Research the symptoms): Research is broader and should come after identifying changes.

Why Not C (Determine which steps need to be performed): This comes after identifying the issue.

Why Not D (Check the vendor's website): This is a later step if further guidance is needed.

CompTIA A+ Exam Reference: Core 2 (220-1102), Section 3.1, troubleshooting methodology​.

The scenario states that the Wi-Fi signal is weak in the user’s office, but the laptop works perfectly in other locations. CompTIA A+ stresses that weak signal strength is caused by distance from the access point, physical obstructions, or poor AP placement. Since other users are not affected and the laptop works elsewhere, the issue is localized signal weakness.

Disabled RJ45 ports (Option C) matter only for wired connections, and the user relies on Wi-Fi. Malware (Option D) would affect performance everywhere, not just in one office. Brute-force attacks (Option B) would trigger security logs and affect multiple users.

Weak signal caused by AP distance or line-of-sight issues is the cause, as detailed in A+ wireless troubleshooting procedures related to low RSSI, interference, and AP placement.

Ultra HD (UHD), also referred to as4K UHD, has a resolution of3840x2160. It's four times the resolution of standard 1080p (Full HD), offering more screen real estate and sharper images.

Option A (1920x1080):Full HD (FHD), not UHD.

Option B (2048x1080):DCI 2K used in cinema, not common for Ultra HD.

Option D (7680x4320):Known as 8K UHD, not standard Ultra HD.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 1.7: Compare and contrast display technologies and their features.

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An A record maps a domain name to an IPv4 address in a DNS server.

From CompTIA A+ 220-1101 Official Study Guide, Objective 2.6 – DNS records:

“A records map hostnames to IPv4 addresses, while AAAA records map to IPv6 addresses.”

Verified Source:

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

CompTIA Exam Objectives 220-1101, Domain 2.6

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