After a user builds their first PC, the user needs to install the operating system from a USB drive. Which of the following should the user configure next?
Correct Answer: D
To install an operating system from a USB drive, the system must be configured to check the USB device before the internal storage during startup. Setting the boot order ensures the computer boots from the USB drive so the operating system installer can run.
Question 17
Which of the following offers access to business productivity applications for a recurring fee?
Correct Answer: A
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.
Question 18
Which of the following DNS record types is used to identify an email server?
Correct Answer: D
An MX (Mail Exchanger) record in DNS specifies the mail server responsible for accepting email messages on behalf of a domain.
Question 19
Which of the following is an isolated virtual machine?
Correct Answer: A
A sandbox is an isolated virtual environment, often used for testing code or software safely without affecting the host system. From CompTIA A+ 220-1101 Official Study Guide, Objective 3.7 - Virtualization: "A sandbox provides an isolated environment, often implemented as a virtual machine, to safely test applications or code." Verified Source: * CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Virtualization * CompTIA Exam Objectives 220-1101, Domain 3.7
Question 20
Which of the forming connector types would best suit a company that experiences a large volume of internet traffic?
Correct Answer: B
RG11 coaxial cable with quad shielding is designed to handle large volumes of internet traffic, providing excellent resistance to interference and high bandwidth capacity. Why Not A (USB 3.1): USB 3.1 is used for connecting peripherals, not for high-volume internet traffic. Why Not C (SATA3.0): SATA is used for internal data storage connections, not for network traffic. Why Not D (Unshielded plenum RJ45): While RJ45 cables are commonly used, unshielded cables are prone to interference and are not ideal for high-volume traffic. CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.1, cable types and their characteristics.
