220-1101 Practice Test 28 — 15 Questions

Question 1

A user reports that they can access the company's internal web server by IP address (192.168.2.10) but not by its hostname (intranet.company.local). Other users on the same network can access the server by hostname without issues. The technician checks the user's network settings and sees that the DNS server is correctly set to the company's internal DNS server. Which of the following should the technician check NEXT?

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

Accepted Answer

Check the local hosts file for an incorrect entry. Since the user can reach the server by IP but not by hostname, and other users can resolve the hostname correctly, the issue is isolated to this specific workstation's name resolution. An incorrect entry in the local hosts file (C:\Windows\System32\drivers\etc\hosts) can override DNS lookups, mapping the hostname to a wrong or unreachable IP. This explains why the user fails to resolve 'intranet.company.local' while the DNS server setting itself is correct.

Answer

Check the default gateway configuration

Answer

Run ipconfig /flushdns to clear the DNS resolver cache

Answer

Change the DNS server to a public DNS server like 8.8.8.8

Question 2

A user reports that their iPhone 12 is not receiving incoming phone calls. When someone calls, the call goes directly to voicemail after one ring. The phone shows full signal strength, and Do Not Disturb (DND) is confirmed to be off. The user can make outgoing calls and send/receive text messages. Which of the following should the technician check NEXT to resolve the issue?

Accepted Answer

Check the call forwarding settings under Phone settings. The symptom—calls going directly to voicemail after one ring while the user can make outgoing calls and send texts—strongly suggests that incoming calls are being redirected. Call forwarding settings, specifically unconditional forwarding (CFU) or forwarding on no reply, can cause this behavior even when DND is off and signal is strong. Checking the Phone > Call Forwarding settings is the logical next step because it directly addresses the call routing issue without unnecessary resets or restarts.

Answer

Restart the iPhone

Answer

Update carrier settings

Answer

Reset network settings

Question 3

A user reports that their iPhone will not connect to a Bluetooth speaker that is in pairing mode. The speaker is visible to other smartphones in the area. The technician has already restarted the iPhone and ensured Bluetooth is enabled. Which of the following should the technician do NEXT?

Accepted Answer

Forget the device on the iPhone and re-pair. The speaker is visible to other smartphones, which confirms the speaker's Bluetooth radio and pairing mode are functional. The iPhone can see the speaker (since it's visible to other devices), but fails to connect, indicating a corrupted or stale pairing profile on the iPhone. Forgetting the device removes the stored link key and Bluetooth cache, forcing a fresh pairing handshake (SDP and LMP procedures) that typically resolves such connection failures.

Answer

Reset network settings on the iPhone

Answer

Replace the Bluetooth antenna in the iPhone

Answer

Update the firmware on the Bluetooth speaker

Question 4

A technician is assembling a new desktop computer with an AMD Ryzen 5 CPU on a B550 motherboard. After installing the CPU, heatsink, RAM, and graphics card, and connecting all power cables, the technician powers on the system. The case fans spin, the motherboard LEDs light up, but there is no display output and no beep codes. The motherboard has a set of diagnostic LEDs; the LED labeled 'CPU' remains lit. Which of the following should the technician check FIRST?

Accepted Answer

Verify that the 8-pin CPU power cable is connected to the motherboard. The CPU diagnostic LED remaining lit indicates a problem with the CPU or its power delivery. The most common cause is the 8-pin EPS12V CPU power cable not being connected, which supplies dedicated 12V power to the processor. Without this cable, the CPU cannot initialize, even though case fans and motherboard LEDs receive power from the 24-pin ATX connector.

Answer

Reseat the RAM modules and try different slots

Answer

Reinstall the dedicated graphics card

Answer

Update the motherboard BIOS to support the CPU

Question 5

A server administrator live-migrates a virtual machine (VM) from one hypervisor host to another within a cluster. After the migration, the VM powers on and the operating system boots, but it cannot communicate with any network resources. Other VMs on the destination host can communicate normally. The VM uses a virtual switch with a custom port group. Which of the following is the MOST likely cause of the network connectivity loss?

Accepted Answer

The destination host does not have the required virtual switch port group configured.. When a VM is live-migrated to a new hypervisor host, the virtual switch configuration must be identical on both hosts. If the destination host lacks the custom port group that the VM's virtual NIC is attached to, the VM will lose network connectivity because the virtual switch port cannot be created. Other VMs on the destination host work normally because they use port groups that are present on that host.

Answer

The VM's virtual NIC MAC address changed during migration.

Answer

The VM's IP address is statically assigned and conflicts with a device on the destination network.

Answer

The hypervisor version on the destination host is incompatible with the VM's virtual hardware version.

Question 6

A technician replaced the cracked display on a smartphone. After reassembly, the touchscreen works perfectly, but the physical home button (which also houses the fingerprint sensor) does not respond to presses. The display and touch functionality are normal. Which of the following components is MOST likely the cause of this issue?

Accepted Answer

The home button flex cable. The home button flex cable is the dedicated connection for both the physical button's tactile input and the fingerprint sensor. Since the display and touchscreen work fine, the digitizer and LCD cables are intact, and the battery connector is not related to button functionality. A damaged or improperly seated home button flex cable would prevent the button from registering presses while leaving other functions unaffected.

Answer

The digitizer flex cable

Answer

The battery connector

Answer

The LCD cable

Question 7

An IT administrator is planning a server virtualization project for a small company. The environment must run a mix of modern operating systems (Windows Server, Linux) and one legacy application that requires direct access to a physical PCIe device (e.g., a proprietary capture card). The administrator wants to maximize performance and minimize overhead. Which virtualization type is BEST suited for this requirement?

Accepted Answer

A. Type 1 (bare-metal) hypervisors, such as VMware ESXi or Microsoft Hyper-V, run directly on the host hardware without an underlying OS, providing near-native performance and minimal overhead. This is essential for the legacy application that requires direct PCIe passthrough (e.g., VT-d/IOMMU), as Type 1 hypervisors natively support PCIe device assignment with low latency, while Type 2 hypervisors would add significant overhead and often lack robust PCIe passthrough support.

Answer

B

Answer

C

Answer

D

Question 8

A server administrator configures two identical virtual machines on two separate physical host servers. The VMs are kept in constant synchronization using a hypervisor-level clustering feature. If one host fails, the other VM instantly takes over with no interruption in service and no data loss. This scenario describes which of the following virtualization features?

Accepted Answer

Fault tolerance. The scenario describes fault tolerance, a hypervisor-level feature that creates a shadow VM in constant lockstep synchronization with the primary VM. If the primary host fails, the secondary VM takes over instantaneously with no interruption and no data loss, because every instruction and state change is mirrored in real time. This is distinct from high availability, which involves restarting the VM on a surviving host after a failure, causing a brief outage.

Answer

High availability

Answer

Live migration

Answer

Snapshots

Question 9

A user reports that their Android smartphone is not recognized by a Windows 10 computer when connected via USB. The user wants to transfer photos from the phone to the computer. The phone charges when connected. The technician checks the computer's Device Manager and sees an unknown device with a yellow exclamation mark. The user has already tried different USB cables and ports. Which of the following is the MOST likely cause?

Accepted Answer

The phone's USB mode is set to 'Charging only' instead of 'File Transfer'.. When an Android phone is connected to a computer for file transfer, the phone must be set to a mode that allows data access, such as 'File Transfer' or 'MTP'. If the mode is set to 'Charging only' (or similar), the computer will see the device as a charger and may not recognize it as a storage device, leading to the unknown device error. The user needs to change the USB mode from the phone's notification area or settings. A damaged USB port (A) is unlikely because charging works; battery defect (C) is unrelated; Apple Mobile Device driver (D) is for iOS devices, not Android.

Answer

The USB port on the computer is damaged.

Answer

The phone's battery is defective.

Answer

The computer is missing the Apple Mobile Device driver.

Question 10

A technician needs to install a PCIe x4 network adapter into a desktop computer. The motherboard has the following available slots: one PCIe x16 slot (occupied by a graphics card), two PCIe x1 slots, and one PCIe x8 slot. Which slot can the technician use to install the x4 card?

Accepted Answer

The PCIe x8 slot. The PCIe x8 slot is the correct choice because PCIe is designed to be backward and forward compatible in terms of lane width. A PCIe x4 card can physically and electrically operate in a PCIe x8 slot, as the slot provides at least the required number of lanes and the card will negotiate down to x4 mode. The other slots either lack the physical size (x1) or are occupied by a critical component (x16).

Answer

Any of the PCIe x1 slots

Answer

The PCIe x16 slot after removing the graphics card

Answer

A PCI slot

Question 11

A technician is building a new desktop computer. After installing the CPU, RAM, and a high-end graphics card, the system powers on but shuts down after about 10 seconds. The CPU fan spins erratically during this time. The technician has verified the CPU is supported and properly seated. The heatsink came with pre-applied thermal paste. Which of the following should the technician check NEXT?

Accepted Answer

Ensure the CPU fan cable is connected to the CPU_FAN header. The CPU fan cable must be connected to the motherboard's CPU_FAN header, not a chassis fan header, because the system monitors the CPU_FAN header for a tachometer signal. If the fan is connected elsewhere, the motherboard detects no fan RPM on the CPU_FAN header and may shut down after a few seconds to prevent CPU overheating, even if the fan is spinning. The erratic fan behavior suggests the fan is receiving power but not being properly controlled or monitored by the CPU_FAN header.

Answer

Replace the CPU with a known-good unit

Answer

Remove and reseat the graphics card

Answer

Check the RAM modules are in the correct slots

Question 12

A company uses a managed PoE switch to power IP phones. A new IP phone is connected to a wall jack that is patched to the switch. The switch port shows 'not powered' in the management interface, even though PoE is enabled globally and the phone is known to work. Which of the following is the MOST likely cause?

Accepted Answer

The PoE power budget for the switch has been exceeded. The most likely cause is that the PoE power budget for the switch has been exceeded. Even though PoE is enabled globally, the switch can only supply a finite amount of total power (e.g., 370W for a Cisco 3750X). If the cumulative power draw of all connected devices surpasses this budget, the switch will deny power to new devices, showing the port as 'not powered' while the phone itself is known to work.

Answer

The patch cable is a crossover cable

Answer

The IP phone requires a higher PoE standard than the switch supports

Answer

The port is administratively disabled

Question 13

A user reports that their Android smartphone's battery drains very quickly, even when the phone is idle. The phone also feels unusually warm near the back cover. The technician has already checked that no apps are running abnormally in the background and the screen brightness is set to auto. Which component is MOST likely faulty?

Accepted Answer

Battery. The battery is the most likely faulty component because a degraded or internally shorted lithium-ion battery can cause rapid self-discharge and excessive heat generation even when the device is idle. The technician has already ruled out abnormal background apps and screen brightness, which isolates the issue to the battery's internal chemistry or protection circuit.

Answer

Charging port

Answer

Display screen

Answer

Processor (SoC)

Question 14

A network technician is configuring a managed switch for a small office. The security requirement is that only specific authorized devices should be allowed to connect to the network via the switch ports. The technician wants to automatically learn the MAC addresses of devices as they connect and lock them to the port to prevent unauthorized devices from using the same port. Which switch feature should be configured to accomplish this?

Accepted Answer

Port security with sticky MAC. Port security with sticky MAC addresses allows the switch to dynamically learn MAC addresses from connected devices and then 'stick' them to the port, preventing any other device from using that port. This meets the requirement of automatically learning and locking authorized devices without manual MAC entry.

Answer

MAC filtering

Answer

VLAN tagging (IEEE 802.1Q)

Answer

Spanning Tree Protocol (STP)

Question 15

A small business uses a public cloud IaaS provider to host its website. The business is charged monthly based on the total amount of CPU time, storage capacity used, and data transferred. The business can view detailed usage reports through the provider's portal. Which essential cloud characteristic does this billing model BEST demonstrate?

Accepted Answer

Measured service. The billing model charges based on actual usage metrics (CPU time, storage, data transfer), which is the defining characteristic of measured service. In cloud computing, measured service means that resource usage is monitored, controlled, and reported, enabling pay-per-use billing. This is distinct from simply provisioning resources on demand or pooling them.

Answer

Resource pooling

Answer

Rapid elasticity

Answer

On-demand self-service