220-1101 Practice Test 47 — 15 Questions

Question 1

A technician is troubleshooting inter-subnet connectivity. The network consists of a router with two interfaces: 192.168.1.1/24 for Subnet A and 192.168.2.1/24 for Subnet B. A device on Subnet A (192.168.1.10/24) can ping the router's Subnet A interface (192.168.1.1) and other devices on Subnet A, but cannot ping a device on Subnet B (192.168.2.10/24). The device on Subnet B can ping its gateway (192.168.2.1) and other Subnet B devices. The router has IP routing enabled and no ACLs are configured. Which of the following is the MOST likely cause of the issue?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The device on Subnet A has a software firewall blocking incoming ICMP traffic. The device on Subnet A can reach its own gateway and local hosts, and the router has IP routing enabled with no ACLs, so routing is functional. The device on Subnet B can ping its own gateway, confirming that Subnet B's network and the router's interface are up. The most likely cause is that the device on Subnet A has a software firewall (e.g., Windows Defender Firewall) blocking incoming ICMP Echo Replies, which prevents the ping response from Subnet B from reaching Subnet A. This is a common scenario where outbound ICMP is allowed but inbound ICMP is blocked by the host firewall.

Answer

The router's interface on Subnet A is administratively down

Answer

The subnet mask on the device in Subnet B is incorrect

Answer

The switch port connecting the router to Subnet B is configured as an access port in the wrong VLAN

Question 2

A technician builds a high-performance workstation for video editing. The motherboard supports DDR4 RAM up to 3200 MHz, and the CPU's official memory controller supports DDR4 up to 2933 MHz. The technician installs two 16 GB sticks rated at 3600 MHz. The system boots, but the memory speed is only 2133 MHz. The technician has enabled XMP (Extreme Memory Profile) in the BIOS. Which of the following is the MOST likely reason the RAM is not running at its rated speed?

Accepted Answer

The CPU's memory controller does not support 3600 MHz natively and may not be stable at that overclocked speed. The CPU's official memory controller supports DDR4 up to 2933 MHz natively. The installed RAM is rated at 3600 MHz, which exceeds this specification. Enabling XMP attempts to overclock the memory beyond the CPU's native support, but the system may fall back to a safe default speed (2133 MHz) if the CPU's integrated memory controller (IMC) cannot reliably handle the overclocked frequency. This is the most likely reason the RAM is running at 2133 MHz instead of its rated speed.

Answer

The motherboard only supports a maximum memory speed of 2133 MHz

Answer

The RAM modules are not fully seated in the slots

Answer

The power supply unit (PSU) does not provide enough wattage for the high-speed RAM

Question 3

A company hosts a legacy application on a virtual machine. The application's license is tied to the MAC address of the virtual machine's network interface. The administrator needs to migrate the VM to a different host server without breaking the license. Which of the following virtualization features should the administrator use?

Accepted Answer

MAC address cloning/static assignment. The application's license is tied to the MAC address of the VM's network interface. When a VM is migrated to a different host, the hypervisor typically assigns a new MAC address, which would break the license. By using MAC address cloning or static assignment, the administrator can preserve the original MAC address on the new host, ensuring the license remains valid.

Answer

VLAN tagging

Answer

Jumbo frames

Answer

Network bonding/teaming

Question 4

A small office has 15 desktop computers connected to a single managed switch. The switch is connected to a router that provides DHCP and DNS services. Users report that they can access the internet but cannot communicate with each other using computer names (e.g., \PC1). The technician verifies that all workstations are on the same subnet (192.168.1.0/24) and can successfully ping each other's IP addresses. Which of the following is the MOST likely cause of the issue?

Accepted Answer

NetBIOS over TCP/IP is disabled on the workstations. NetBIOS over TCP/IP (NBT) is required for name resolution of NetBIOS names, which are used in Windows for computer names like \PC1. When NBT is disabled, Windows cannot resolve NetBIOS names to IP addresses, preventing communication by computer name even though IP-based communication (ping) works. Since DNS is functioning (internet access works) and all computers are on the same subnet, the most likely cause is that NetBIOS over TCP/IP is disabled on the workstations.

Answer

The DNS server is not configured correctly

Answer

Windows Firewall is blocking file and printer sharing

Answer

Workgroups are not configured the same on all computers

Question 5

A user in a small office can access internal network resources by IP address but cannot access any websites by domain name. Other users on the same network can browse the internet without issues. The user's workstation obtains an IP address via DHCP and can successfully ping the default gateway. Which of the following is the MOST likely cause of the issue?

Accepted Answer

Incorrect DNS server address on the workstation. The user can access internal resources by IP address and ping the default gateway, confirming Layer 2/3 connectivity is intact. The inability to resolve domain names to IP addresses while other users can browse normally points directly to a DNS resolution failure. Since the workstation obtains its IP via DHCP, the most likely cause is that the DHCP server provided an incorrect or no DNS server address, or the workstation's DNS settings were manually misconfigured, preventing name resolution.

Answer

Faulty network cable

Answer

DHCP scope exhaustion

Answer

Firewall blocking outbound traffic

Question 6

A graphic design company needs to render a complex 3D animation that will take approximately 4 hours to complete. The rendering software requires a powerful CPU and a large amount of RAM. The company's on-premises workstations are not powerful enough, and they do not want to purchase new hardware. Which cloud computing characteristic would BEST allow them to complete this task cost-effectively?

Accepted Answer

Elasticity. Elasticity allows the company to provision cloud-based virtual machines with the required CPU and RAM for the duration of the rendering task (4 hours) and then de-provision them immediately after, paying only for the compute time used. This avoids the capital expenditure of purchasing new hardware and is cost-effective because resources scale up on demand and scale down when no longer needed.

Answer

Metered service / measured service

Answer

Resource pooling

Answer

High availability

Question 7

A technician is building a desktop computer for a graphic designer. The motherboard supports both SATA and M.2 NVMe SSDs. The technician installs a 500GB M.2 NVMe SSD in the primary M.2 slot and a 2TB SATA HDD for additional storage. The computer boots from the NVMe SSD without issue. However, the SATA HDD is not detected in Windows Disk Management or in the BIOS. The technician has verified the SATA cable is connected securely and the HDD is receiving power. Which of the following is the MOST likely cause of the issue?

Accepted Answer

The M.2 NVMe SSD disables specific SATA ports on this motherboard. The M.2 NVMe SSD uses PCIe lanes that, on many consumer motherboards, share bandwidth with specific SATA ports. When an M.2 NVMe drive is installed in the primary M.2 slot, the motherboard firmware automatically disables certain SATA ports (often SATA port 5 or 6) to avoid lane conflicts. This explains why the SATA HDD is not detected even though it is powered and the cable is secure.

Answer

The SATA HDD is too large to be recognized alongside an NVMe drive

Answer

The SATA controller is disabled in the BIOS

Answer

The SATA HDD requires a jumper setting for 2TB mode

Question 8

A user reports that their smartphone's screen appears to be slightly bulging outward and the back cover is separating from the chassis. The phone still powers on and functions normally. Which of the following components is MOST likely causing this issue?

Accepted Answer

Battery. A bulging screen and separating back cover are classic signs of a swollen lithium-ion battery. As the battery degrades, internal chemical reactions produce gas, causing the battery casing to swell and physically push against the phone's chassis. This occurs even if the phone still powers on and functions normally, as the battery can still deliver voltage while its physical integrity is compromised.

Answer

Digitizer

Answer

LCD panel

Answer

Charging port

Question 9

A user reports that their smartphone's 3.5mm headphone jack is not working. When headphones are inserted, the music continues to play from the built-in speaker, and the headphone icon does not appear in the status bar. The technician has cleaned the jack with compressed air and tested with multiple headphones. Which of the following components is MOST likely faulty?

Accepted Answer

The headphone jack assembly.. The headphone jack assembly contains a mechanical switch that detects when a plug is inserted and routes audio away from the built-in speaker. Since cleaning and multiple headphones did not resolve the issue, the most likely fault is a broken or stuck detection mechanism within the jack assembly itself, preventing the device from recognizing that headphones are connected.

Answer

The audio codec chip.

Answer

The battery.

Answer

The motherboard.

Question 10

A user reports that a laptop connects to Wi-Fi at home but cannot connect to a corporate docking station's wired network through USB-C. Other peripherals on the dock work. What should the technician check first?

Accepted Answer

Whether the dock's Ethernet driver or firmware is installed and current. The Ethernet function over USB-C requires a dedicated driver or firmware for the docking station's network interface. Since other peripherals (e.g., USB devices, video) work, the USB-C data path is intact, isolating the issue to the Ethernet adapter itself. Checking and updating the dock's Ethernet driver or firmware is the logical first step before any hardware replacement or OS reinstall.

Answer

Disable the wireless adapter permanently

Answer

Replace the laptop display panel

Answer

Reinstall the operating system immediately

Question 11

A user reports that their smartphone will not charge when connected to a USB port on their laptop, but it charges fine when plugged into a wall charger. The laptop's other USB ports work with a mouse and keyboard. Which of the following is the MOST likely cause?

Accepted Answer

Laptop USB port power output is too low. The most likely cause is that the laptop's USB port does not provide enough power to charge the smartphone. USB 2.0 ports typically supply up to 500 mA, while many modern smartphones require 1 A or more for charging. The wall charger can supply higher current, which is why charging works there. The fact that the mouse and keyboard work confirms the port is functional for low-power devices.

Answer

Faulty USB cable

Answer

Smartphone's battery is defective

Answer

Laptop USB drivers are outdated

Question 12

A company needs to move a virtual machine (VM) from one physical host to another in the same datacenter. The VM must remain accessible via its current private IP address, and downtime must be kept to an absolute minimum. Which cloud feature BEST enables this migration?

Accepted Answer

Live migration. Live migration (also known as vMotion in VMware environments) allows a running virtual machine to be moved from one physical host to another with zero downtime and without changing its network identity. The VM's memory and CPU state are transferred over a dedicated network while the disk storage remains shared, ensuring the private IP address remains accessible throughout the process.

Answer

Load balancing

Answer

Auto-scaling

Answer

Elasticity

Question 13

A company needs to migrate its customer relationship management (CRM) application to the cloud. The application runs on a custom operating system, and the IT team requires full administrative control over the OS and all installed software. Additionally, compliance regulations mandate that the underlying physical servers must be dedicated solely to the company's workloads. Which cloud service model BEST meets these requirements?

Accepted Answer

Infrastructure as a Service (IaaS) with dedicated hosts. Infrastructure as a Service (IaaS) with dedicated hosts provides full administrative control over the custom operating system and all installed software, while ensuring that the physical servers are not shared with other tenants. This model meets the compliance requirement for dedicated hardware because the cloud provider allocates specific physical servers exclusively to the company, giving the IT team the same level of control as on-premises infrastructure.

Answer

Platform as a Service (PaaS)

Answer

Software as a Service (SaaS)

Answer

Public cloud with shared servers

Question 14

A user reports that their Android smartphone's battery drains much faster than usual after a recent system update. The phone is two years old and has been working normally until now. The user has already restarted the device. Which of the following should the technician recommend FIRST?

Accepted Answer

Check for updates to installed apps. After a system update, app compatibility issues or background processes can cause excessive battery drain. Checking for app updates ensures that apps are optimized for the new OS version, as outdated apps may use more CPU or keep the device awake unnecessarily. This is the least invasive and most logical first step before considering hardware replacement or disabling core features.

Answer

Perform a factory reset

Answer

Replace the battery

Answer

Disable location services

Question 15

A user dropped their Android smartphone and now the touchscreen is unresponsive in a small area near the top of the display. The screen is not cracked, and the LCD portion of the display still shows images correctly. Which component is MOST likely damaged?

Accepted Answer

Digitizer. The digitizer is the touch-sensitive layer that registers touch input. When a specific area of the touchscreen becomes unresponsive after a drop, but the LCD still displays images correctly, the digitizer is the most likely damaged component because it is a separate glass layer bonded to the LCD and is susceptible to impact damage even without visible cracks.

Answer

LCD panel

Answer

Battery

Answer

Motherboard