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| Section | Weight | Objectives |
|---|---|---|
| Hardware and Network Troubleshooting | 26% | - Network troubleshooting - Troubleshooting methodology - Common symptoms and root causes - Hardware troubleshooting - Printers and multifunction devices - Mobile device troubleshooting |
| Networking | 20% | - Network connectivity - Network troubleshooting - Network hardware and devices - Network protocols and services - Network configurations - IP addressing and subnetting basics |
| Mobile Devices | 15% | - Cellular connectivity and settings - Mobile device troubleshooting - Mobile device management (MDM) - Mobile device configuration - Mobile device synchronization |
| Virtualization and Cloud Computing | 12% | - Virtualization fundamentals - Cloud and virtualization troubleshooting - Virtual machine concepts - Cloud concepts and models (IaaS, PaaS, SaaS) - Cloud connectivity and configuration |
| Hardware | 27% | - PC hardware and peripherals - RAM types and installation - BIOS/UEFI and firmware - Power supplies and connectors - Storage devices (HDD, SSD, NVMe) - Peripheral devices and connections - CPU and expansion cards |
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NEW QUESTION # 145
A network administrator must ensure that a printer will still be assigned a specific IP address even if all addresses are depleted.
Which of the following network configuration concepts is this describing?
Answer: C
Explanation:
A DHCP reservation binds a specific MAC address to an IP address so the device always receives the same IP from the DHCP server. This ensures network devices like printers maintain consistent connectivity and availability even when the IP pool is low.
NEW QUESTION # 146
Which of the following are radio frequency connections? (Select two.)
Answer: B,E
Explanation:
CompTIA A+ explains that radio frequency (RF) connections use electromagnetic waves instead of copper or optical cabling. Satellite uses RF signals transmitted to and from orbiting satellites, while cellular networks (3G/4G/5G) use RF communications via cell towers.
Cable uses coaxial wired infrastructure, DSL uses telephone lines, Ethernet is twisted-pair copper, and fiber uses light instead of RF.
Satellite and cellular are the only technologies in the list that rely on wireless radio frequency transmission as their medium. The A+ networking domain emphasizes understanding the physical media of WAN technologies and distinguishing wired vs. wireless connectivity, making B and D the correct answers.
NEW QUESTION # 147
Some users are unable to access their workstations. An administrator runs ipconfig on one of the workstations and sees the following:
The administrator runs the following command and receives this output:
Which of the following is the source of issue?
Answer: D
Explanation:
The workstation's IP configuration (192.168.1.27/24 with gateway 192.168.1.1) shows that it has a correct IP address, correct subnet mask, and expected default gateway for a typical small office network. Because the IP is in the correct private range and not an APIPA address (169.254.x.x), this also confirms that DHCP is functioning properly. Therefore, option D (DHCP) cannot be the cause.
The user then pings the default gateway at 192.168.1.1, which should be the router-the device providing routing between local devices and outside networks. The repeated "Request timed out" responses indicate the workstation cannot reach the router at all. This type of failure points directly to a router outage, a powered-off router, a failed router interface, or a physical disconnection of the router from the switch.
If DNS (C) were the issue, the user would still be able to ping the IP address of the gateway because DNS is not required for IP-to-IP connectivity. A web server (A) has no relation to local gateway communication and does not affect workstation access.
Since the workstation has a valid IP but cannot reach its default gateway, the failure point is the router.
NEW QUESTION # 148
A user is having trouble with the location services on their smartphone. Location-based applications show incorrect positions when the user is traveling. This issue affects the user's ability to navigate and use location-dependent applications. Which of the following is the best way to resolve this issue?
Answer: D
Explanation:
Wi-Fi assistance in mobile devices helps improve location accuracy by using nearby wireless networks to triangulate the device's position, even when GPS signals are weak (like indoors or in dense areas).
NEW QUESTION # 149
A technician is building a home desktop computer. The technician wants to prioritize cable management when considering the type of power supply. Which of the following power supply types should the technician consider?
Answer: C
Explanation:
A modular power supply is the best choice when cable management is a priority. According to CompTIA Core 1 (220-1201) power supply objectives, modular PSUs allow technicians to connect only the cables that are needed for the system's components, reducing clutter inside the case.
This improves airflow, simplifies troubleshooting, and creates a cleaner internal layout, which is especially beneficial in home-built desktop systems. Semi-modular and fully modular power supplies offer varying degrees of flexibility, but all modular designs reduce unused cables compared to standard power supplies.
A standard (non-modular) power supply has all cables permanently attached, often resulting in excess unused cables that obstruct airflow. A backup power supply refers to an uninterruptible power supply (UPS), which provides battery backup but does not improve internal cable management. A redundant power supply is typically found in enterprise servers and includes multiple PSUs for fault tolerance, not cable management.
CompTIA emphasizes modular power supplies as a best practice for clean builds and efficient system design, making this the correct answer.
NEW QUESTION # 150
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