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| Section | Weight | Objectives |
|---|---|---|
| Networking | 20% | - Network fundamentals
|
| Virtualization and Cloud Computing | 11% | - Cloud computing concepts
|
| Hardware and Network Troubleshooting | 29% | - Troubleshooting methodology
|
| Hardware | 25% | - PC hardware components
|
| Mobile Devices | 15% | - Mobile device hardware and components
|
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NEW QUESTION # 354
Which of the following servers is used to collect data and information about events from a network-connected host?
Answer: A
Explanation:
A Syslog server gathers and stores log messages and event data sent over the network from various hosts and devices, centralizing system and application logs for monitoring and analysis.
NEW QUESTION # 355
A technician must install a printer at a corporate office for all employees to use. Which of the following is the best option?
Answer: C
Explanation:
A print server centrally manages print jobs and allows multiple employees to share the same printer over the corporate network. It provides better control, queue management, and access permissions than direct or ad hoc printing methods.
NEW QUESTION # 356
Which of the following cables should be installed if nearby electromagnetic interference is a possibility?
Answer: D
Explanation:
Shielded Twisted Pair (STP) cabling is specifically designed to protect data transmissions from electromagnetic interference (EMI) and radio frequency interference (RFI). According to CompTIA Core 1 (220-1201) networking cabling objectives, STP cables include an additional shielding layer-either around individual wire pairs or the entire cable-that reduces the impact of external electrical noise.
In environments where network cables are installed near heavy machinery, fluorescent lighting, power cables, or radio transmitters, EMI can cause data corruption, retransmissions, and reduced network performance. STP helps maintain signal integrity in these high-interference environments.
Unshielded Twisted Pair (UTP) relies only on wire twisting to reduce interference and is more susceptible to EMI compared to STP. Thunderbolt and USB are peripheral interface standards, not structured network cabling solutions, and they are not intended for long-distance network installations.
CompTIA emphasizes selecting the appropriate cabling type based on environmental factors, particularly when interference is a concern. For locations with potential EMI, STP is the recommended choice.
References:CompTIA A+ Core 1 (220-1201) Official Study Guide - Network Cabling, EMI, and Installation Best Practices
NEW QUESTION # 357
Which of the following characteristics differentiates DDR4 RAM from DDR3 RAM?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract (Aligned With CompTIA A+ 220-1201 Study Guide) CompTIA A+ Core 1 memory standards describe the differences between DDR generations. One of the key improvements in DDR4 over DDR3 is reduced operating voltage, which allows lower power consumption and increased efficiency.
DDR3 operates at 1.5V (some variants 1.35V)
DDR4 operates at 1.2V (some variants 1.05V LPDDR4)
This lower voltage is a recognized defining characteristic separating DDR4 from DDR3.
Other differences such as increased speed and internal bank structure exist, but the question specifically asks for the characteristic that differentiates DDR4 from DDR3 - and voltage is the correct, primary distinction used in CompTIA A+ materials.
Why the other options are incorrect
B . Higher latency
DDR4 generally has slightly higher CAS latency numbers, but due to increased speed, real latency is similar. This is not the standard differentiator referenced by CompTIA.
C . Increased DIMM width
DDR3 and DDR4 standard DIMMs both have a 64-bit data width.
D . Single-sided modules
Both DDR3 and DDR4 can be single- or double-sided; not a differentiating factor.
NEW QUESTION # 358
After troubleshooting a computer's connectivity, the network team determines there is a port-mapping issue.
After plugging the patch cable into a different port, the issue persists. Which of the following troubleshooting steps should a technician take next to resolve the issue?
Answer: D
Explanation:
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
NEW QUESTION # 359
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