- (Topic 3)
A technician is troubleshooting connectivity issues and needs to promiscuously route a copy of traffic to a separate machine for analysis. Which of the following physical tools v/ould BEST accomplish this task?
Correct Answer:
C
A network tap is a physical device that allows promiscuous monitoring of network traffic by creating a copy of the data packets for analysis. A toner probe is used to trace and identify cables. A Wi-Fi analyzer is used to measure wireless signal strength and interference. A loopback plug is used to test network ports or cables by sending and receiving signals from the same device.
- (Topic 2)
A technician is preparing to set up a gaming computer with the following components:
✑ Discrete, high-end graphics card
✑ Video capture card
✑ High-end processor
✑ Multiple hard drives
✑ USB 3.0 hub
✑ Sound card
Which of the following options is the MOST important for the technician to consider before building the gaming computer?
Correct Answer:
D
This is because high-end graphics cards, processors, and multiple hard drives require a significant amount of power to operate. A power supply with insufficient wattage could cause stability issues or even damage the components.
The CompTIA A+ Core1 certification guide emphasizes the importance of selecting an appropriate power supply for a computer build. In addition to wattage, other factors to consider when selecting a power supply include efficiency, modularity, and the number and type of connectors required to power the components. However, of the options listed, the wattage rating is the most critical consideration.
Therefore, the technician should ensure that the power supply they select has a wattage rating that is sufficient to power all the components in the gaming computer. It is always a good practice to select a power supply with a wattage rating that exceeds the estimated power usage of t
- (Topic 3)
A printer technician receives a support request for a laser printer that sometimes cuts off the bottom of the print job. During troubleshooting the technician notices that affected jobs are set for 8.5in x 14in (216mm x 356mm) paper and only print from a particular paper tray. Which of the following actions should the technician perform NEXT?
Correct Answer:
A
Reference: https://partners.comptia.org/docs/default-source/resources/a-core-1-content- guide (page 16)
- (Topic 4)
A developer is requesting permission to utilize client-side virtualization. The developer would like to write code in a setting isolated from other infrastructure to avoid negative impacts of experimental code. Which of the following provides the best solution for the developer?
Correct Answer:
D
The best solution for the developer is D. Sandbox environment.
Client-side virtualization is a technology that allows users to run multiple operating systems and applications on the same device, without affecting the host system or the network1. A sandbox environment is a type of client-side virtualization that creates a secure and isolated space for testing, debugging, or experimenting with code, without risking any damage or interference to the rest of the system2.
A sandbox environment can provide several benefits for the developer, such as23:
•It can simulate different scenarios and conditions for the code, such as different operating systems, browsers, devices, network settings, etc.
•It can protect the code from external threats, such as malware, hackers, or unauthorized access.
•It can prevent the code from affecting other applications or processes on the device or the network, such as consuming resources, causing errors, or leaking data.
•It can allow the developer to easily revert any changes or restore the original state of the system, if something goes wrong.
Therefore, a sandbox environment can provide the best solution for the developer who wants to write code in a setting isolated from other infrastructure to avoid negative impacts of experimental code.
References:
1: Client-side Virtualization – CompTIA A+ 220-1001 – 4.2 2: What is a Sandbox Environment? | VMware Glossary 3: What is Sandbox Testing? - Definition from Techopedia
- (Topic 4)
A user reports that a printer pulls multiple sheets of paper from the paper tray instead of a single sheet. Which of the following should a technician
investigate to resolve this issue? (Select two).
Correct Answer:
CD
The correct answers are C. Pickup roller and D. Separation pad.
A pickup roller is a rubber wheel that grabs the paper from the paper tray and feeds it into the printer. A separation pad is a small piece of cork or rubber that prevents more than one sheet of paper from being fed at a time. If the pickup roller or the separation pad is worn out, dirty, or damaged, it can cause the printer to pull multiple sheets of paper instead of a single sheet. This can lead to paper jams, misprints, or wasted paper.
To resolve this issue, a technician should investigate the condition of the pickup roller and the separation pad and replace them if necessary. The technician should also clean the paper tray and make sure the paper is loaded correctly and not stuck together.
A toner cartridge is a component that contains the toner powder used to create the printout on a laser printer. A tractor feed is a mechanism that uses sprockets to move continuous paper through a dot matrix printer. A duplexer is a device that allows a printer to print on both sides of the paper automatically. A fuser is a part of a laser printer that melts the toner onto the paper using heat and pressure. None of these components are related to the issue of pulling multiple sheets of paper from the paper tray.
Reference: Types of Printers—What You Need to Know for the CompTIA A+ Exams