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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Networking | 23% | - Network devices & configuration - Network connectivity & troubleshooting - Network types, topologies & cables - IP addressing & protocols - Wireless networking standards & security |
| Topic 2: Hardware | 25% | - PC components, installation & configuration - Custom PC builds & specialized hardware - Peripherals & storage devices - Hardware maintenance & upgrades - Power supply & cooling systems |
| Topic 3: Mobile Devices | 13% | - Mobile device security & troubleshooting - Network connectivity & configuration - Synchronization & data management - Hardware components & replacement |
| Topic 4: Hardware and Network Troubleshooting | 28% | - Hardware problems & solutions - Component failure diagnosis & repair - Network issues & resolution - Troubleshooting methodology |
| Topic 5: Virtualization and Cloud Computing | 11% | - Virtual & cloud security - Virtualization concepts & hypervisors - Cloud service models & deployment types - Cloud infrastructure & resource management |
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NEW QUESTION # 58
A technician receives a tablet that looks like it has a bulge inside. The bulge is pushing the screen away from the backplate. The tablet still turns on when it is plugged in, but the screen looks damaged and turns off when unplugged.
Which of the following is the most likely cause of this issue?
Answer: A
Explanation:
A bulging tablet casing is a classic sign of as wollen lithium-ion battery, often caused by age, overheating, or overcharging. This is a dangerous condition, as swollen batteries can rupture or catch fire. It also explains why the tablet only works when plugged in -- the battery is no longer holding a charge.
NEW QUESTION # 59
Which of the following offers access to business productivity applications for a recurring fee?
Answer: A
Explanation:
Software as a Service (SaaS) provides users access to fully managed applications hosted in the cloud. CompTIA A+ explains that SaaS is subscription-based and typically billed monthly or annually, which aligns perfectly with the phrase "recurring fee." Business productivity applications-such as Microsoft 365, Google Workspace, Zoom, Slack, and Salesforce-are classic examples of SaaS offerings.
SaaS applications run entirely in the provider's cloud environment, eliminating the need for installation, maintenance, or management by the customer. This makes SaaS ideal for businesses that need reliable, scalable tools without maintaining their own infrastructure.
DaaS (Desktop as a Service) provides virtual desktops.
PaaS (Platform as a Service) offers a development framework for building applications.
IaaS (Infrastructure as a Service) provides virtual servers, storage, and networking-not end-user productivity apps.
Thus, SaaS is the correct and only model that matches the description of subscription-based access to productivity applications.
NEW QUESTION # 60
A technician must upgrade a computer system to improve its overall processing performance.
Which of the following should the technician focus on to ensure maximum system performance?
Answer: B
Explanation:
Clock frequency is one of the most significant factors influencing a computer system's processing performance, clock speed-measured in gigahertz (GHz)-determines how many instruction cycles a processor can perform per second.
Higher clock frequencies generally result in faster execution of instructions, leading to improved performance in both single-threaded and multi-threaded workloads. While modern CPUs also rely on core count, cache size, and architecture efficiency, clock frequency remains a primary metric for evaluating raw processing speed.
NEW QUESTION # 61
An employee's screen keeps flashing. Sometimes the picture goes out and comes back. The employee checks the power cord and confirms the device is plugged in fully. Which of the following should a technician check for first?
Answer: D
Explanation:
Intermittent display issues, such as a screen flashing on and off, are most commonly caused by a loose or faulty video cable connection. If the power cable is confirmed secure, the next logical step is to check the video (data) cable between the monitor and the computer.
From the CompTIA A+ 220-1101 Official Study Guide, Objective 4.1 - Troubleshoot common hardware problems:
"Common video issues include intermittent display or loss of picture. The most likely causes are a loose or faulty video cable or connector. Check all cable connections before troubleshooting internal components." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Troubleshooting Hardware Problems
* CompTIA Exam Objectives 220-1101, Domain 4.1
NEW QUESTION # 62
A student configures a wireless SOHO network to connect four laptops and one multifunction printer. All laptops must have internet access and be able to use the printer. Which of the following settings ensures the printer is always available?
Answer: A
Explanation:
Static IP for the printer: A printer needs a consistent, unchanging IP address so that all devices on the network can reliably find and connect to it. If the printer uses a dynamic IP (DHCP) and the address changes (e.g., after a power outage or a lease expiration), other devices will not be able to find it using the old address.
Dynamic IPs for the laptops: Laptops are mobile devices that frequently connect to and disconnect from networks. Using dynamic IP addresses assigned by the SOHO router's DHCP server is a standard and efficient way to manage their network configurations automatically.
Same subnet: All devices must be on the same local network subnet to communicate directly with each other (including the router for internet access) in a SOHO environment.
NEW QUESTION # 63
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