FC0-U61 Infrastructure Practice Test 3 — 15 Questions

Question 1

Match each database concept to its description.

Question 2

Match each cable type to its typical use.

Question 3

A user cannot connect to the internet. Which step is most appropriate to start troubleshooting?

Accepted Answer

Check the network cable connection. The most appropriate first step in troubleshooting a network connectivity issue is to check the physical layer (Layer 1 of the OSI model). A loose or unplugged network cable is a common cause of connectivity loss, and verifying the cable connection is quick, non-invasive, and follows the principle of starting with the simplest possible cause before escalating to more complex solutions.

Answer

Update the graphics driver

Answer

Replace the router

Answer

Reinstall the operating system

Question 4

A company wants to ensure data redundancy in case of a single hard drive failure. Which RAID level should they use?

Accepted Answer

RAID 1. RAID 1 (mirroring) writes identical data to two or more drives simultaneously, providing full data redundancy. If one drive fails, the system continues to operate using the mirrored copy, ensuring no data loss and minimal downtime. This makes RAID 1 the correct choice for protecting against a single hard drive failure.

Answer

RAID 0

Answer

RAID 5

Answer

JBOD

Question 5

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 6

A technician is selecting a storage solution for a home server that requires fast access speeds and redundancy against a single drive failure. Which TWO technologies should be considered?

Accepted Answer

SSD. SSD (Solid State Drive) provides fast access speeds due to its use of NAND flash memory, which eliminates mechanical seek times and rotational latency found in HDDs. This makes it ideal for a home server requiring rapid data retrieval. RAID 1 (mirroring) writes identical data to two drives, offering redundancy against a single drive failure by allowing the system to continue operating if one drive fails.

Answer

Cloud storage

Answer

HDD

Answer

RAID 0

Question 7

A small business is expanding and needs to ensure their network infrastructure supports growth. Which THREE practices should they implement?

Accepted Answer

Deploy redundant power supplies for critical devices. Redundant power supplies ensure that critical network devices like switches and routers remain operational even if one power supply fails, minimizing downtime during business expansion. This practice directly supports network availability and growth by providing fault tolerance for essential infrastructure components.

Answer

Use a single subnet for simplicity

Answer

Use static IP addressing for all devices

Question 8

A user reports that their computer is not turning on. Which TWO hardware components should be checked first?

Accepted Answer

Power outlet. The power outlet is the first component to check because it is the most basic point of failure in the power delivery chain. If the outlet is dead or switched off, no power reaches the system, making it impossible for the computer to turn on. Verifying the outlet with a known working device (e.g., a lamp) quickly isolates this common issue before inspecting internal hardware.

Answer

CPU

Answer

RAM

Answer

Hard drive

Question 9

Refer to the exhibit. A user is able to browse the internet using the Ethernet connection but not the Wi-Fi. What is the most likely cause?

Accepted Answer

The Wi-Fi adapter is not connected to any network. The exhibit shows that the Ethernet interface has an IP address (192.168.1.114) and is connected to the internet, while the Wi-Fi interface shows 'Not connected' with no IP address assigned. Since the user can browse the internet via Ethernet but not Wi-Fi, the most likely cause is that the Wi-Fi adapter is not connected to any network, meaning it has not associated with a wireless SSID or obtained an IP address via DHCP.

Answer

The Wi-Fi adapter is disabled

Answer

The DNS suffix is missing

Answer

The default gateway is incorrect

Question 10

Refer to the exhibit. A system administrator notices that the computer occasionally freezes and data read errors occur. What should the administrator do?

Accepted Answer

Replace Disk 0. Disk 0 is the system disk (as indicated by the 'System' label in the exhibit), and the described symptoms—occasional freezing and data read errors—are classic indicators of a failing hard drive. Replacing Disk 0 addresses the root cause because a failing system disk can cause intermittent read failures and system hangs. Running CHKDSK or updating drivers would only mask the problem temporarily, and replacing Disk 1 (a non-system disk) would not resolve system-level freezes.

Answer

Update the storage controller driver

Answer

Replace Disk 1

Answer

Run CHKDSK on both disks

Question 11

Refer to the exhibit. A user cannot access the internet. What does this output indicate?

Accepted Answer

The default gateway cannot reach the remote network. The output shows a successful ping to the default gateway (192.168.1.1) but a failed ping to a remote IP (8.8.8.8). This indicates that the user's local network connectivity is intact, but the default gateway cannot forward traffic to the remote network, likely due to a missing or incorrect route on the gateway or an upstream connectivity issue.

Answer

The user's IP address is invalid

Answer

The DNS server is down

Answer

The local network cable is unplugged

Question 12

A technician is configuring a small office network with 15 computers. The computers need to share files and a printer. The technician decides to use a topology where each computer is connected to a central device. Which physical topology is being implemented?

Accepted Answer

Star. The star topology connects each computer directly to a central device, such as a switch or hub. This allows all 15 computers to share files and a printer through the central device, making it the correct choice for the described small office network.

Answer

Ring

Answer

Mesh

Answer

Bus

Question 13

A user wants to access a website but types the wrong URL. Which technology resolves domain names to IP addresses?

Accepted Answer

DNS. DNS (Domain Name System) is the technology that translates human-readable domain names (like www.example.com) into machine-readable IP addresses (like 192.0.2.1). When a user types a wrong URL, the browser still sends a DNS query to resolve the domain portion of the URL; if the domain is valid but the path is wrong, DNS resolves correctly, but if the domain itself is mistyped, DNS may fail or redirect to a different IP. This resolution is essential for locating the web server on the internet.

Answer

HTTP

Answer

NAT

Answer

DHCP

Question 14

A company stores sensitive data and wants to ensure that if a hard drive is stolen, the data cannot be read. Which security measure should be implemented?

Accepted Answer

Full disk encryption. Full disk encryption (FDE) encrypts the entire contents of a hard drive, including the operating system, applications, and all data, using algorithms such as AES-256. If the drive is stolen, the data remains unreadable without the decryption key or passphrase, even if the drive is physically removed and attached to another system. This directly addresses the requirement of protecting data at rest on a stolen drive.

Answer

RAID 1

Answer

Antivirus software

Answer

Strong passwords

Question 15

A network technician is setting up a wireless network. To minimize interference from neighboring networks, which wireless frequency band is typically less congested?

Accepted Answer

5 GHz. The 5 GHz band is typically less congested than the 2.4 GHz band because it has more non-overlapping channels (23 vs. 3) and is used by fewer devices, including legacy Wi-Fi clients. This reduces co-channel interference from neighboring networks, making 5 GHz the preferred choice for minimizing interference in dense wireless environments.

Answer

900 MHz

Answer

2.4 GHz

Answer

60 GHz