FC0-U71 Infrastructure Practice Test 4 — 15 Questions

Question 1

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.

Answer

Connect via USB cable

Answer

Install a driver

Answer

Enable NFC

Question 2

Which of the following is used to translate human-readable domain names (like www.example.com) into IP addresses that computers use to identify each other on the network?

Accepted Answer

DNS. DNS (Domain Name System) is the hierarchical, distributed naming system that resolves human-readable hostnames such as www.example.com into the numeric IP addresses (e.g., 93.184.216.34) that hosts use for routing. It operates primarily over UDP port 53 for queries, with TCP 53 used for zone transfers and large responses. Without DNS, users would have to memorize IP addresses for every service they access.

Answer

NAT

Answer

HTTP

Answer

DHCP

Question 3

A technician is setting up a virtual machine on a laptop running Windows 10. The technician installs VirtualBox and creates a Linux VM. Which type of hypervisor is VirtualBox?

Accepted Answer

Type 2 hypervisor. VirtualBox is a Type 2 hypervisor because it installs as an application on top of an existing host operating system (Windows 10) and relies on that OS for hardware access and scheduling. It does not run directly on the bare metal like ESXi or Hyper-V. This host-dependent architecture is the defining characteristic of Type 2 (hosted) hypervisors.

Answer

Bare-metal hypervisor

Answer

Type 1 hypervisor

Answer

Container

Question 4

A company wants to ensure that its corporate data is secure if a mobile device is lost. The IT department needs to remotely wipe the device and enforce a passcode policy. Which technology should be implemented?

Accepted Answer

MDM. Mobile Device Management (MDM) is the technology designed to enforce security policies on mobile devices, including remote wipe and passcode requirements. MDM solutions allow IT to remotely wipe corporate data if a device is lost, and enforce passcode complexity, length, and timeout. This directly addresses the company's needs.

Answer

Firewall

Answer

Antivirus

Answer

VPN

Question 5

A user reports that their laptop's Wi-Fi connection is slow and frequently drops when they are in the living room, but works fine in the office near the router. The router supports both 2.4GHz and 5GHz bands. Which band should the user connect to for better performance in the living room?

Accepted Answer

2.4GHz. The 2.4GHz band has longer wavelength and better wall penetration, so it maintains a usable signal at greater distances and through obstacles like walls between the office and living room. Although 5GHz offers higher throughput at close range, its shorter wavelength causes faster attenuation through walls, explaining the drops in the living room. For range and obstacle penetration, 2.4GHz is the correct choice.

Answer

Cellular

Answer

5GHz

Answer

Bluetooth

Question 6

An IT technician is configuring a new server and needs to allocate virtual resources to a VM. Which THREE of the following are virtual resources that can be allocated to a VM? (Choose THREE.)

Accepted Answer

Virtual storage. Virtual storage (B) is a virtual resource because a hypervisor presents VMs with virtual disks (VMDK, VHDX, or qcow2 files) backed by datastores rather than direct physical disk access. vCPU (D) is correct because the hypervisor schedules virtual processors onto physical CPU cores, letting each VM receive one or more vCPUs independent of the underlying socket/core count. vRAM (E) is correct because memory is overcommitted and presented to the guest as virtual RAM backed by host physical memory, swap, or ballooning. Physical USB ports (A) and a physical GPU (C) are hardware devices that must be passed through or mapped to a VM, so they are not virtual resources allocated by the hypervisor in the same sense.

Answer

Physical USB ports

Answer

Physical GPU

Question 7

Which of the following RAM types is the fastest and most recent?

Accepted Answer

DDR5. DDR5 is the fastest and most recent RAM type listed, offering higher data rates (starting at 4800 MT/s and scaling beyond 6400 MT/s), lower operating voltage (1.1V vs DDR4's 1.2V), and greater capacity per module. It was introduced for consumer platforms starting with Intel's 12th Gen (Alder Lake) and AMD's Ryzen 7000 series. DDR4, DDR3, and DDR2 are all older generations with progressively lower speeds and higher voltages.

Answer

DDR4

Answer

DDR2

Answer

DDR3

Question 8

A technician is selecting a storage interface for a new solid-state drive that offers the fastest data transfer speeds. Which interface should they choose?

Accepted Answer

NVMe M.2. NVMe M.2 is the fastest storage interface listed because it uses the PCIe bus and the NVMe protocol, bypassing the older SATA/AHCI stack. NVMe drives deliver far higher IOPS and sequential throughput than SATA SSDs, often exceeding 3,000 MB/s versus SATA's ~550 MB/s ceiling. For a technician selecting the fastest SSD interface, NVMe M.2 is the correct choice.

Answer

SATA

Answer

PATA

Answer

USB 2.0

Question 9

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.

Answer

DVI

Answer

VGA

Answer

HDMI 1.4

Question 10

A company needs to manage and secure a fleet of employee smartphones used for work. Which technology should they implement?

Accepted Answer

MDM. Mobile Device Management (MDM) allows organizations to enforce policies, manage apps, and secure data on mobile devices.

Answer

DNS

Answer

NAC

Answer

VPN

Question 11

A user's home wireless network is experiencing interference. Which frequency band is more prone to interference from devices like microwaves and cordless phones?

Accepted Answer

2.4 GHz. The 2.4 GHz frequency band is more prone to interference from common household devices like microwaves, cordless phones, and Bluetooth devices because these devices operate in the same unlicensed ISM band. This band is crowded and only has three non-overlapping channels (1, 6, and 11), making it susceptible to signal degradation. In contrast, 5 GHz and 60 GHz bands are less congested and have more channels, reducing interference.

Answer

60 GHz

Answer

5 GHz

Answer

900 MHz

Question 12

Which wireless standard is commonly known as Wi-Fi 5 and operates on the 5 GHz band?

Accepted Answer

802.11ac. 802.11ac is the IEEE standard marketed as Wi-Fi 5, and it operates primarily on the 5 GHz band (with some early dual-band implementations). It introduced wider channels (up to 160 MHz), MU-MIMO, and higher-order modulation to boost throughput over 802.11n. This makes 802.11ac the correct answer for Wi-Fi 5 on 5 GHz.

Answer

802.11ax

Answer

802.11g

Answer

802.11n

Question 13

A technician is setting up a virtualized environment on a laptop to run multiple operating systems for testing. Which type of hypervisor is most appropriate?

Accepted Answer

Type 2 hypervisor. A Type 2 hypervisor runs as an application on top of an existing host operating system, making it ideal for a laptop where the user needs to keep the host OS running while testing multiple guest VMs. Examples include VMware Workstation, Oracle VirtualBox, and Parallels. This is the standard choice for desktop virtualization and lab environments.

Answer

Bare-metal hypervisor

Answer

Type 1 hypervisor

Answer

Container

Question 14

A company wants to implement a private network for devices within a single building. Which type of network should they use?

Accepted Answer

LAN. A LAN (Local Area Network) is the correct choice because it is designed to cover a single building or a limited geographic area such as an office, home, or campus floor. It provides high-speed connectivity among devices within that scope and is the standard classification for intra-building networks. WAN, MAN, and PAN describe larger or smaller scopes, respectively.

Answer

WAN

Answer

MAN

Answer

PAN

Question 15

A user wants to sync their contacts and calendar between their Android phone and tablet. Which method is most commonly used?

Accepted Answer

Google account sync. Android devices natively integrate with Google accounts, which sync contacts, calendar, Gmail, and other Google services across devices when the same account is signed in. This is the default and most common method for syncing an Android phone and tablet. No third-party tools or pairing are required — signing into the same Google account on both devices enables automatic sync.

Answer

iCloud sync

Answer

Bluetooth pairing

Answer

NFC