Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A user reports that their desktop computer loses network connectivity intermittently. When the problem occurs, the link light on the network interface card (NIC) is off. The technician has replaced the Ethernet cable and tried a different port on the switch, but the issue persists. The technician notices that the desktop is located in a cubicle next to a large metal filing cabinet. Which of the following is the MOST likely cause of the intermittent connectivity?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Electromagnetic interference (EMI) from the metal cabinet
EMI from large metal objects can disrupt Ethernet signals, causing intermittent link drops and connectivity loss. The symptom of the link light turning off indicates a physical layer issue, which is consistent with EMI.
B
Distractor review
Faulty router causing periodic DHCP lease failures
A faulty router would affect multiple users simultaneously, not just a single desktop. Additionally, DHCP failures would not cause the NIC link light to turn off; the physical link would remain active.
C
Distractor review
Incorrect static IP address configuration on the desktop
An incorrect IP address would prevent network communication, but the link light on the NIC would remain solid or blinking because the physical connection to the switch is still intact.
D
Distractor review
Duplicate IP address conflict on the network
A duplicate IP address can cause intermittent connectivity, but it would not cause the NIC link light to turn off. The link light indicates the physical layer status, which would remain functional.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A user reports intermittent network connectivity on a desktop computer. The technician observes that the Ethernet link light on the NIC turns off for a few seconds and then turns back on. The cable passes a wiremap test, the switch port is verified good with another device, and the NIC driver is updated. The issue occurs more frequently when the computer's case fan runs at high speed. Which of the following is the MOST likely cause?
Question 2
A workstation is unable to connect to the internet. The technician runs the 'ipconfig' command and sees the IPv4 address is 169.254.15.200 with a subnet mask of 255.255.0.0. The workstation can ping other devices on the local subnet but cannot ping the default gateway or any external addresses. Which TWO actions should the technician take to resolve this issue? (Select two.)
Question 3
A workstation is connected to a managed switch. It obtains a valid IP address (192.168.10.50) from the DHCP server, but it cannot ping the default gateway (192.168.10.1). The link light on both the workstation NIC and the switch port are solid green. Other workstations on the same switch CAN ping the default gateway successfully. The technician accesses the switch management interface and finds that the workstation's port is configured as an access port on VLAN 10. The default gateway is located on VLAN 20. An inter-VLAN router is configured but not explicitly allowing VLAN 10 access to VLAN 20. Which of the following is the MOST likely cause of the problem?
Question 4
A company develops a web application that relies on a custom library available only for a specific Linux distribution. They want to deploy the application in the cloud with minimal administrative overhead, but they need full control over the software stack, including the ability to install the custom library and configure the web server. Which cloud service model BEST meets these requirements?
Question 5
A company has a legacy virtual machine running on a deprecated hypervisor (Hyper-V). They want to migrate this VM to a new hypervisor (VMware vSphere) hosted in a private cloud while preserving the VM's configuration, installed applications, and data. The migration must be performed with minimal downtime. Which of the following methods is MOST appropriate?
Question 6
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?
FAQ
Questions learners often ask
What does this 220-1101 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Electromagnetic interference (EMI) from the metal cabinet — The most likely cause is electromagnetic interference (EMI) from the large metal filing cabinet. EMI can interfere with the electrical signals in the Ethernet cable, causing signal degradation or loss, which would cause the NIC link light to turn off and connectivity to drop. Replacing the cable and switch port did not resolve the issue, and the proximity to a large metal object points to an environmental interference source. Faulty router (option B) is unlikely because other users would likely be affected. Incorrect IP configuration (option C) would not cause the link light to turn off; it would affect network communication but the physical link would still be up. Duplicate IP address (option D) would cause intermittent connectivity but the link light would remain on because the physical connection is still established.
What should I do if I get this 220-1101 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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