220-1101 Practice Test 27 — 15 Questions

Question 1

A technician is troubleshooting a workstation that loses network connectivity for a few seconds at random intervals. The technician observes that during the outage, the network icon in the system tray shows 'Unidentified network' or 'No internet access', but the IP configuration still shows a valid address from DHCP. The technician has already replaced the NIC and the Ethernet cable. 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 speed and duplex settings on both the NIC and the switch port. The symptom of intermittent connectivity with a valid DHCP address but 'Unidentified network' or 'No internet access' points to a Layer 2 issue, often caused by a speed/duplex mismatch between the NIC and the switch port. When one side is set to auto-negotiation and the other is manually set (or fails to negotiate), the link may appear up but drops frames, causing brief outages. Since the NIC and cable have already been replaced, checking and aligning the speed and duplex settings on both ends is the logical next step.

Answer

Verify that the DNS server is reachable and responsive

Answer

Disable the Windows firewall temporarily

Answer

Increase the DHCP lease time on the router

Question 2

A company hosts a critical database on a virtual machine in a public cloud. The database requires persistent storage that must be retained even if the VM is terminated. The storage must also be accessible from multiple VMs simultaneously for a future high-availability configuration. Which type of cloud storage BEST meets these requirements?

Accepted Answer

File storage. File storage (C) is correct because it provides a shared, persistent file system that can be mounted by multiple VMs simultaneously, typically using NFS or SMB/CIFS protocols. This meets the requirement for persistent storage that survives VM termination and supports concurrent read/write access for a future high-availability configuration.

Answer

Object storage

Answer

Block storage

Answer

Ephemeral storage

Question 3

A system administrator manages a cluster of hosts running a Type 1 hypervisor. The administrator needs to move a virtual machine (VM) from one physical host to another in the cluster without turning off the VM or interrupting its services. The hypervisor supports this capability. Which of the following features should the administrator use?

Accepted Answer

Live migration. Live migration (also known as vMotion in VMware environments) allows a running virtual machine to be moved between physical hosts with zero downtime and no service interruption. The hypervisor transfers the VM's memory state and storage access over a dedicated network while the VM continues to operate, then briefly pauses execution to switch over the final state. This matches the requirement of moving a VM without turning it off or interrupting services.

Answer

High availability

Answer

Snapshot

Answer

Cloning

Question 4

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?

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 5

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 6

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 7

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 8

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 9

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 10

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 11

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 12

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 set to 'Charging only' USB mode, it presents no USB data interface to the host, so Windows enumerates an unknown device (yellow exclamation) and cannot mount it as MTP. Switching to 'File Transfer' (MTP) mode exposes the media storage interface, allowing photo transfer. The fact that charging works confirms the cable and port are electrically functional.

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 13

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 14

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 15

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