- (Topic 4)
An online retailer is working to support increased sales and boost server capacity by installing additional servers. Which of the following should be used to ensure each new
server will be properly utilized?
Correct Answer:
A
Virtualization is a technology that allows creating multiple virtual machines (VMs) on a single physical server. Each VM can run its own operating system and applications, and share the resources of the physical server, such as CPU, memory, disk, and network1. Virtualization can help improve server utilization and management in several ways, such as:
•Reducing the number of physical servers needed to run the same workload, which can lower the costs of hardware, power, cooling, and maintenance1.
•Increasing the flexibility and scalability of the server infrastructure, as VMs can be created, deleted, moved, or resized on demand without affecting the other VMs or the physical server1.
•Enhancing the availability and reliability of the server applications, as VMs can be backed up, restored, or migrated to another physical server in case of failure or maintenance1.
•Improving the security and isolation of the server data, as VMs can be configured with different levels of access and protection, and separated from each other and the physical server1.
- (Topic 1)
A technician is setting up a new desktop computer and will be installing the hard drive directly on the motherboard without using cables to connect it. Which of the following will the technician be installing?
Correct Answer:
C
M.2 is a form factor for solid-state drives (SSDs) that enables direct attachment to the motherboard without the need for cables. Thunderbolt is a high-speed interface that supports data transfer, video output, and charging. eSATA is an external interface for connecting SATA devices. SCSI is an older interface standard for connecting hard drives, printers, and other peripherals.
Installing a hard drive directly on the motherboard without using cables is usually done with an M.2 slot. References: CompTIA A+ Certification Exam Guide, Ninth Edition, Chapter 5
- (Topic 4)
Which of the following should the label on a network jack faceplate refer to?
Correct Answer:
B
A network jack faceplate is a device that covers and protects the network jack or outlet on a wall or a floor. A network jack or outlet is a physical interface that allows a network cable, such as an Ethernet cable, to be plugged into a network device, such as a computer or a printer. A network jack faceplate usually has one or more ports that correspond to different types of network cables, such as RJ-45, RJ-11, or coaxial.
A label on a network jack faceplate should refer to the patch panel port that the network jack or outlet is connected to. A patch panel is a device that connects multiple network cables in an organized and convenient way. A patch panel has a number of ports that correspond to different cables, such as Ethernet, coaxial, or fiber-optic cables. A patch panel can help simplify the wiring and management of a network, as well as provide flexibility and scalability for adding or changing network devices.
By labeling the network jack faceplate with the patch panel port, the network technician can easily identify and trace the cable that is connected to the network jack or outlet. This can help to troubleshoot and resolve network issues, such as connectivity, performance, or configuration problems. It can also help to avoid confusion or errors when installing or modifying network cables.
- (Topic 4)
A laser printer is making humming and grinding noises, and the printouts have ghost images on the pages. Which of the following should be replaced?
Correct Answer:
C
The most likely answer is C. Fuser.
A fuser is a component in a laser printer that uses heat and pressure to fuse the toner powder onto the paper. If the fuser is damaged or worn out, it can cause humming and grinding noises, as well as ghost images on the printouts. Ghost images are faint copies of previous images that appear on the same page. They are caused by the fuser not heating the toner properly, or by the toner sticking to the fuser roller and transferring to the next page12.
To fix this problem, you should replace the fuser unit with a new one. You can check your printer manual for instructions on how to remove and install the fuser unit. You can also use a diagnostic ruler to measure the distance between the ghost images and determine if the fuser is the source of the problem2. If the ghost images are far apart (between 4cm and 5cm), then the fuser is likely to be faulty.
References:
1: Solved: “Ghost Images” When Printing - HP Support Community
2: How to Fix Ghosting When Using a Laser Printer and Toner Cartridges – Inksaver
- (Topic 2)
Which of the following wireless technologies has the MOST range and wireless throughput?
Correct Answer:
B
802.11ax, also known as Wi-Fi 6, has the longest range and the highest wireless throughput of all the wireless technologies listed. References: CompTIA A+ Certification Exam Guide, 220-1001, Chapter 3
