- (Topic 2)
A technician receives a ticket that states a mobile payment device is having Issues with Its contactless payment feature. The device is not detecting payment options. Which of the following Is the MOST likely cause of the Issue?
Correct Answer:
A
NFC (Near Field Communication) is the technology used for contactless payment features on mobile payment devices. If a mobile payment device is having issues with its contactless payment feature and is not detecting payment options, it is most likely due to an issue with the NFC functionality of the device.
The contactless payment feature on a mobile payment device uses NFC (Near Field Communication) to detect payment options. If the device is not detecting payment options, the issue may be related to a problem with the NFC feature. References: https://www.techopedia.com/definition/31790/near-field-communication-nfc
- (Topic 1)
Which of the following is a valid use for PaaS?
Correct Answer:
B
PaaS (Platform as a Service) is a cloud computing model in which a provider offers a platform that allows developers to create, run, and manage applications without the complexity of building and maintaining the infrastructure. An application development environment is a valid use for PaaS. References: CompTIA A+ Certification Exam Objectives 1001, 1.7
- (Topic 4)
Which of the following twisted pair cables supports 10GBASE-T data transmission speed?
Correct Answer:
D
The correct answer is D. Cat 6a.
Cat 6a (augmented) is a type of twisted pair cable that supports 10GBASE-T data transmission speed. 10GBASE-T is an Ethernet standard that can deliver 10 gigabits per second (Gbps) over copper cables. Cat 6a can support this speed up to a distance of 100 meters, which is the same as Cat 5e and Cat 6 for lower speeds. Cat 6a has better shielding and crosstalk prevention than Cat 6, which makes it more suitable for high- frequency signals.
Cat 3, Cat 5, and Cat 5e are not capable of supporting 10GBASE-T data transmission speed. Cat 3 can only support up to 10 Mbps, Cat 5 can only support up to 100 Mbps, and Cat 5e can only support up to 1 Gbps. These cables have lower bandwidth, higher attenuation, and more interference than Cat 6a.
Reference: Network Cables - CompTIA A+ 220-1101 - 3.1 - Professor Messer IT Certification Training Courses
- (Topic 1)
Which of the following BEST describes the main function of a web server?
Correct Answer:
D
A web server is a software application that serves HTTP (Hypertext Transfer Protocol) requests by delivering web pages and other files to users' web browsers. The main function of a web server is to host home pages and business portals, making them accessible to users via the internet. References: CompTIA A+ Certification Exam Objectives 220-1001 - Networking - 1.6
- (Topic 4)
A customer's laptop is making clicking sounds in the area where non-volatile storage is installed. A technician examines the laptop and confirms the issue. Which of the following is the most appropriate replacement part?
Correct Answer:
B
NVMe stands for Non-Volatile Memory Express, and it is a type of SSD (solid state drive) that uses PCIe (Peripheral Component Interconnect Express) interface to connect to a computer. NVMe SSDs offer faster performance and lower latency than other types of SSDs, such as SATA (Serial ATA) or M.2 SATA. If a user reports that a PC occasionally fails to boot and makes clicking sounds in the area where non-volatile storage is installed, it indicates that the hard drive is failing and needs to be replaced with an NVMe SSD.
