FC0-U71 Practice Test 32 — 15 Questions

Question 1

A software developer writes code that interacts with the operating system to access hardware. Which layer of software is being used?

Accepted Answer

System software. System software, specifically the operating system kernel, provides the interface between application software and hardware. When a software developer writes code that interacts with the OS to access hardware, they are using system calls (e.g., Windows API, POSIX syscalls) that are part of the system software layer. This layer manages hardware resources and abstracts them for higher-level programs.

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Application software

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Firmware

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Utility software

Question 2

A software company is using version control for a project. A developer has completed work on a new feature in a separate branch and wants to merge it into the main branch. What TWO steps should typically occur before the merge is accepted?

Accepted Answer

Update the feature branch with the latest main branch changes. Common version control best practices include code review via pull requests and ensuring the feature branch is up to date with the main branch to minimize conflicts.

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Delete the feature branch immediately

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Run unit tests only on the main branch

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Commit changes directly to the main branch

Question 3

A technician is configuring a new workstation for video editing. Which of the following expansion cards would be MOST beneficial for improving video rendering performance?

Accepted Answer

Graphics processing unit (GPU). A Graphics Processing Unit (GPU) is specifically designed for parallel processing of graphics and video rendering tasks, making it the most beneficial expansion card for improving video rendering performance. Video editing and rendering workloads rely heavily on GPU acceleration for effects, encoding, and real-time preview. Adding a dedicated GPU offloads these tasks from the CPU and dramatically reduces render times.

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TV tuner card

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Network Interface Card (NIC)

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Sound card

Question 4

Which THREE of the following are common types of network topologies? (Choose three.)

Accepted Answer

Star. Star, bus, and ring are three of the most common physical network topologies defined in networking standards. In a star topology, all devices connect to a central switch or hub, which manages traffic and isolates failures to individual links. Bus topology uses a single backbone cable with terminators at both ends, while ring topology passes data sequentially from one node to the next using a token-passing mechanism (e.g., Token Ring per IEEE 802.5).

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Circle

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Square

Question 5

A company wants to ensure that if one hard drive fails, no data is lost. Which RAID level should be implemented?

Accepted Answer

RAID 1. RAID 1 (mirroring) writes identical data to two or more drives simultaneously, so if one drive fails, the other contains a complete copy of all data, resulting in zero data loss. This directly meets the requirement that no data is lost upon a single hard drive failure.

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RAID 5

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JBOD

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RAID 0

Question 6

A user wants to connect a Bluetooth keyboard to a tablet. What is the first step the user must perform to establish the connection?

Accepted Answer

Pair the devices. Before a Bluetooth keyboard can communicate with a tablet, the two devices must be paired, which establishes a trusted relationship and exchanges link keys. Pairing is the first step; only after pairing can the devices connect automatically or manually. USB, drivers, and NFC are not required for standard Bluetooth keyboard setup.

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Connect via USB cable

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Install a driver

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Enable NFC

Question 7

A company is considering moving its email system to the cloud and wants to avoid managing the underlying servers and software. Which cloud service model would best suit this need?

Accepted Answer

Software as a Service (SaaS). SaaS delivers fully managed, ready-to-use applications over the internet, with the provider handling all underlying infrastructure, patching, and software maintenance. Moving an email system to a cloud-hosted service like Microsoft 365 or Google Workspace is the canonical SaaS example because the customer only manages users and data, not servers or email software.

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Infrastructure as a Service (IaaS)

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Platform as a Service (PaaS)

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Desktop as a Service (DaaS)

Question 8

Which TWO of the following are core phases of the Software Development Life Cycle (SDLC)?

Accepted Answer

Testing. Testing (C) is a core SDLC phase because it is the formal stage where the built software is verified and validated against requirements before release, covering activities like unit, integration, system, and acceptance testing. Implementation (E) is also a core SDLC phase, as it is the stage in which the design is translated into actual code and the system is built and deployed. The remaining options are not core SDLC phases: algorithm design (A) is a lower-level design activity that may occur within the design phase, flowcharting (B) is a modeling or documentation technique used during analysis/design, and debugging (D) is a defect-fixing activity performed within implementation and testing rather than a distinct SDLC phase.

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Algorithm design

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Flowcharting

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Debugging

Question 9

A network engineer is configuring a device and needs to enter a MAC address. Which notational system is typically used for MAC addresses?

Accepted Answer

Hexadecimal. MAC addresses are 48-bit identifiers written as 12 hexadecimal digits, typically grouped in pairs separated by colons or hyphens (e.g., 00:1A:2B:3C:4D:5E). Hexadecimal is used because each hex digit maps cleanly to 4 bits, so 12 hex digits represent exactly 48 bits without ambiguity. This makes hexadecimal the standard notational system for MAC addresses.

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Octal

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Decimal

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Binary

Question 10

A quality assurance team is executing system testing on a new banking application. They need to verify that the entire application works correctly from start to finish. Which THREE of the following testing types would be included in system testing?

Accepted Answer

Security testing. System testing validates the complete, integrated application against its requirements, so Security testing (A) is included because it verifies authentication, authorization, encryption, and protection against vulnerabilities across the whole banking system. Functional testing (C) is included because it confirms end-to-end business functions and requirements work correctly from start to finish. Performance testing (E) is included because it assesses responsiveness, throughput, scalability, and stability of the fully integrated application under load. Integration testing (B) is not part of system testing because it focuses on interfaces between combined units/modules and is performed earlier at the integration level. Unit testing (D) is not included because it tests individual components or functions in isolation, typically done by developers before integration.

Answer

Integration testing

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Unit testing

Question 11

A user wants to store 100 high-resolution photos. Which unit of measurement is MOST appropriate for the total file size?

Accepted Answer

Gigabytes. High-resolution photos typically range from 5 to 25 megabytes each, so 100 such photos would total hundreds of megabytes to several gigabytes. Gigabytes (GB) is the most appropriate unit because it matches the expected order of magnitude for this data volume, whereas smaller units like kilobytes or bytes would require unwieldy large numbers. This aligns with common storage measurements in IT, where GB is standard for large file collections.

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Kilobytes

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Bytes

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Bits

Question 12

Which of the following is a primary advantage of using a database instead of a flat file system?

Accepted Answer

Supports concurrent multi-user access with data integrity. A database management system (DBMS) provides concurrent multi-user access with mechanisms like locking, transactions, and ACID properties to maintain data integrity. This is a primary advantage over flat file systems, which lack built-in concurrency control and integrity enforcement, leading to data corruption or inconsistency when multiple users access the same file.

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No need for data validation

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Data is stored in a single file for easy backup

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Simpler to set up and maintain

Question 13

A company wants to ensure that data is not lost if a hard drive fails. Which of the following best practices should be implemented?

Accepted Answer

Performing regular backups. Regular backups create copies of data that can be restored if the original is lost due to hard drive failure. This directly addresses data loss by providing a recovery point, unlike other options that focus on security or power protection.

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Using strong passwords

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Regularly updating antivirus software

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Using a surge protector

Question 14

A user wants to connect a high-resolution 4K monitor to their desktop computer for gaming at 144Hz. Which port should they use to ensure the best performance?

Accepted Answer

DisplayPort. DisplayPort is the correct choice because it supports 4K resolution at 144Hz (and higher) with sufficient bandwidth, and it is the standard interface for high-refresh-rate gaming monitors. DisplayPort 1.4 and later natively handle 4K@144Hz without compression, making it the best performance option among the listed ports.

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DVI

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VGA

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HDMI 1.4

Question 15

Which component of the CIA triad ensures that data cannot be modified by unauthorized users?

Accepted Answer

Integrity. Integrity, the 'I' in the CIA triad, specifically ensures that data remains accurate, complete, and unaltered unless modified by authorized parties. It protects against unauthorized modification, deletion, or corruption, whether the data is at rest, in transit, or in use. Authentication verifies identity, availability ensures access, and confidentiality prevents unauthorized disclosure—none of these directly address modification prevention.

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Authentication

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Availability

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Confidentiality