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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Mobile Devices | 13% | - Mobile device security & troubleshooting - Network connectivity & configuration - Hardware components & replacement - Synchronization & data management |
| Topic 2: Virtualization and Cloud Computing | 11% | - Cloud infrastructure & resource management - Virtualization concepts & hypervisors - Virtual & cloud security - Cloud service models & deployment types |
| Topic 3: Networking | 23% | - IP addressing & protocols - Network devices & configuration - Wireless networking standards & security - Network types, topologies & cables - Network connectivity & troubleshooting |
| Topic 4: Hardware and Network Troubleshooting | 28% | - Component failure diagnosis & repair - Hardware problems & solutions - Network issues & resolution - Troubleshooting methodology |
| Topic 5: Hardware | 25% | - PC components, installation & configuration - Power supply & cooling systems - Custom PC builds & specialized hardware - Peripherals & storage devices - Hardware maintenance & upgrades |
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NEW QUESTION # 140
Which of the following best characterizes the use of a virtual machine as a sandbox?
Answer: C
Explanation:
A sandbox in virtualization allows testing an application in an isolated environment to observe its behavior without affecting the host system.
NEW QUESTION # 141
Which of the following types of RAM is most likely used in data centers and in high-performance machines?
Answer: D
Explanation:
Data centers and high-performance servers prioritize stability and fault tolerance. CompTIA A+ identifies ECC (Error-Correcting Code) RAM as the standard memory used in such environments. ECC RAM automatically detects and corrects single-bit memory errors, preventing system crashes, data corruption, and downtime-critical requirements for servers running mission-critical workloads.
ECC memory is commonly paired with registered/buffered modules (RDIMM) for additional stability, but ECC itself is the defining feature required in data center environments. Non-ECC, unbuffered memory is used in consumer desktops where minor memory errors pose minimal risk.
Single-channel memory (B) is simply a configuration and does not imply reliability. Unbuffered RAM (C) is not used in enterprise-grade systems because it lacks error correction and electrical stabilization. RDIMM (D) includes buffering but may come with or without ECC; however, ECC is the key requirement highlighted by the question.
Therefore, the correct answer is ECC RAM.
NEW QUESTION # 142
Which of the following is typically found in server memory modules?
Answer: C
Explanation:
Server memory modules commonly use error-correcting code memory, which can detect and correct single-bit memory errors to improve system reliability and stability in mission-critical environments.
NEW QUESTION # 143
A projector has been shutting down after 30 minutes of use, and it has a strange smell The technician confirms the power source is not the cause of the issue.
Which of the following steps should the technician take next to resolve this issue?
Answer: A
Explanation:
Projectors have air filters that prevent dust from entering the internal components. A clogged filter can cause the projector to overheat, resulting in shutdowns and even strange smells due to overheating components. Cleaning the filter is a standard troubleshooting step when projectors exhibit overheating symptoms.
NEW QUESTION # 144
A technician is unable to join a computer to the domain. The technician runs ipconfigand gets the following output:
Which of the following is the most likely cause?
Answer: A
Explanation:
Joining a domain requires the computer to use the organization's internal DNS so it can locate domain controllers and domain services. With public DNS servers configured, the computer cannot resolve the internal domain records needed to complete the domain join.
NEW QUESTION # 145
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