FC0-U71 Practice Test 48 — 15 Questions

Question 1

A company wants to run multiple operating systems on a single physical server to maximize resource utilization. Which technology should they use?

Accepted Answer

Virtual machines. Virtual machines use a hypervisor (such as VMware ESXi, Hyper-V, or KVM) to abstract physical hardware and run multiple independent guest operating systems concurrently on a single physical server. Each VM has its own virtual CPU, memory, storage, and network, allowing full OS isolation and high resource utilization without rebooting. This is the standard technology for server consolidation and maximizing hardware utilization.

Answer

Dual booting

Answer

Cloud computing

Answer

Containerization

Question 2

A user notices that their computer runs slowly when multiple applications are open simultaneously. Which hardware component is most likely insufficient for the current workload?

Accepted Answer

RAM. When multiple applications run simultaneously, each active process and its working data must reside in memory for the CPU to access it quickly. If RAM is insufficient, the OS resorts to paging/swapping to disk, which is orders of magnitude slower and manifests as system-wide sluggishness under multitasking. Adding more RAM directly addresses this bottleneck by allowing more concurrent processes to stay resident in fast memory.

Answer

GPU

Answer

CPU

Answer

Hard drive

Question 3

A technician is troubleshooting a network issue where a client cannot reach a server on a different subnet. The client's IP is 192.168.1.10/24, and the server's IP is 10.0.0.50/24. The client can ping its default gateway. Which device is most likely misconfigured?

Accepted Answer

The router between subnets. The client can ping its default gateway, indicating that its local subnet (192.168.1.0/24) connectivity and the gateway's interface are working. However, the client cannot reach a server on a different subnet (10.0.0.0/24). This points to a routing issue: the router between the subnets is likely misconfigured—either missing a route to the 10.0.0.0/24 network or not performing inter-VLAN routing correctly. Without proper routing, the router drops or fails to forward packets destined for the server's subnet.

Answer

The client's DNS settings

Answer

The server's firewall

Answer

The switch

Question 4

After a network upgrade, a user reports that their computer intermittently loses network connectivity. The link light remains on, but the activity light flashes rapidly and irregularly. What is the most likely cause?

Accepted Answer

Bad Ethernet cable. The intermittent connectivity with the link light on but the activity light flashing rapidly and irregularly is a classic symptom of a faulty or marginal Ethernet cable. A bad cable can cause excessive collisions or frame errors, leading to retransmissions that manifest as rapid, irregular activity light flashing while the physical link (link light) remains established. This is distinct from issues like IP conflicts or driver corruption, which typically do not produce this specific link/activity light behavior.

Answer

IP address conflict

Answer

Driver corruption

Answer

Faulty NIC

Question 5

Which file extension typically indicates a compressed archive in Windows?

Accepted Answer

.zip. .zip is the standard compressed archive format on Windows, bundling one or more files into a single compressed container. Windows Explorer natively supports creating and extracting .zip files without third-party tools, making it the default archive extension.

Answer

.docx

Answer

.jpg

Answer

.mp4

Question 6

A user is setting up a new wireless router at home. During configuration, they see options for Wi-Fi 5 (802.11ac) and Wi-Fi 6 (802.11ax). Which standard offers faster speeds and better performance in congested environments?

Accepted Answer

Wi-Fi 6. Wi-Fi 6 is the newer standard with higher data rates, improved efficiency, and better handling of multiple devices.

Answer

Neither affects speed

Answer

Both are identical in speed

Answer

Wi-Fi 5

Question 7

Which of the following BEST describes the primary function of an operating system?

Accepted Answer

Manage hardware resources. The primary function of an operating system is to manage hardware resources, including the CPU, memory, storage, and input/output devices, by abstracting them into a usable interface for applications. Without an OS, software cannot directly coordinate hardware access, as the OS handles scheduling, memory allocation, and device drivers. This resource management is fundamental to all other OS roles, such as file system management and process control.

Answer

Secure network traffic

Answer

Create documents

Answer

Provide internet access

Question 8

A technician is recommending a device to protect a server from data loss during a power outage. Which device should the technician recommend?

Accepted Answer

Uninterruptible Power Supply (UPS). An Uninterruptible Power Supply (UPS) provides battery backup power to the server during a power outage, allowing for a safe shutdown or continued operation until power is restored. This directly prevents data loss by ensuring the server does not abruptly lose power while writing data to disk. Unlike other devices, a UPS combines surge protection with battery backup, making it the correct choice for this scenario.

Answer

Generator

Answer

Power strip

Answer

Surge protector

Question 9

A company is evaluating different software licenses for a new project. Which THREE of the following are characteristics of open-source licenses such as the MIT License or Apache License? (Select THREE.)

Accepted Answer

Users can modify the source code.. Option C is correct because open-source licenses such as MIT and Apache explicitly grant the right to modify the source code, which is a core requirement of the Open Source Initiative definition. Option D is correct because these licenses permit redistribution of the software, including in original or modified form, subject only to attribution or notice requirements. Option E is correct because open-source licenses grant freedom of use for any purpose, including commercial use, without field-of-use restrictions. Option A is incorrect because open-source licenses do not require modifications to be kept private; in fact, they permit and often encourage public distribution of modified versions. Option B is incorrect because MIT and Apache licenses are royalty-free and do not require payment of a fee to use the software.

Answer

Users must keep their modifications private.

Answer

Users must pay a fee to use the software.

Question 10

A user reports that their printer is not working. The printer is connected via USB to a workstation, and other users can print to the same printer over the network. Which of the following should the technician check FIRST?

Accepted Answer

USB cable connection. Since other users can print to the same printer over the network, the printer itself is operational and reachable. The issue is isolated to the local workstation, making the USB cable connection the most likely point of failure. A loose, damaged, or disconnected USB cable would prevent the workstation from communicating with the printer, so checking the physical connection is the quickest and simplest first step.

Answer

Paper jam in the printer

Answer

Printer driver on the workstation

Answer

Printer sharing settings on the network

Question 11

A programmer writes code to run a block of instructions repeatedly until a condition is met. Which programming concept is being used?

Accepted Answer

Loop. A loop is a programming construct that repeats a block of instructions until a specified condition is met. The scenario describes exactly that: code that runs repeatedly until a condition becomes true. Loops are fundamental for iteration, such as processing items in a list or repeating a task until a user quits.

Answer

Conditional

Answer

Function

Answer

Variable

Question 12

A database designer is modeling a system where each book can have multiple authors and each author can write multiple books. Which type of relationship should be used between the Book and Author entities?

Accepted Answer

Many-to-many. The scenario describes a many-to-many relationship because each book can have multiple authors and each author can write multiple books. In relational database design, this is modeled using a junction (or associative) table that contains foreign keys referencing both the Book and Author primary keys, enabling the bidirectional association without data redundancy.

Answer

One-to-one

Answer

Hierarchical

Answer

One-to-many

Question 13

A technician is troubleshooting a computer that fails to boot. The technician suspects corrupted firmware. Which component stores the firmware that initializes hardware during boot?

Accepted Answer

ROM chip on motherboard. Firmware that initializes hardware during boot (BIOS/UEFI) is stored in a ROM chip on the motherboard, typically a flash EEPROM or SPI flash chip. This non-volatile memory retains the firmware even when power is removed, allowing the system to begin the boot process.

Answer

RAM

Answer

Hard drive

Answer

CMOS battery

Question 14

An IT technician is setting up a virtualized server environment. The server will host multiple virtual machines for different departments. Which type of hypervisor should the technician install directly on the server hardware to maximize performance and resource efficiency?

Accepted Answer

Type 1 hypervisor. A Type 1 hypervisor (bare-metal) runs directly on the server hardware without an underlying host OS, giving VMs direct access to CPU, memory, and I/O resources. This architecture minimizes overhead and maximizes performance and resource efficiency, which is exactly what a multi-VM production server environment requires. Examples include VMware ESXi, Microsoft Hyper-V (Server role), and KVM.

Answer

Containerization platform

Answer

Dual-boot configuration

Answer

Type 2 hypervisor

Question 15

Which device converts the signal from an ISP into a digital signal that a computer can use?

Accepted Answer

Modem. A modem (modulator-demodulator) converts the ISP's signal — whether analog (DSL, cable, POTS) or optical (fiber ONT) — into a digital signal that a computer or router can use. It is the demarcation device between the ISP's WAN medium and the customer's LAN. This matches the question's definition exactly.

Answer

Switch

Answer

Access point

Answer

Router