easymultiple choiceObjective-mapped

A technician runs a new Cat6 Ethernet cable between a switch in the server room and a workstation in an office. The cable run is approximately 120 meters long. The workstation shows a 'Network cable unplugged' error and the switch port LED does not light. The technician confirms the cable is properly terminated with T568B on both ends and the switch port is enabled. Which of the following is the MOST likely cause of the issue?

Question 1easymultiple choice
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A technician runs a new Cat6 Ethernet cable between a switch in the server room and a workstation in an office. The cable run is approximately 120 meters long. The workstation shows a 'Network cable unplugged' error and the switch port LED does not light. The technician confirms the cable is properly terminated with T568B on both ends and the switch port is enabled. Which of the following is the MOST likely cause of the issue?

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

The cable length exceeds the maximum allowable segment length

The maximum length for Ethernet over twisted pair is 100 meters. A 120-meter run exceeds this limit, causing signal loss and link failure.

B

Distractor review

Electromagnetic interference from nearby power cables

Cat6 cable is designed to reduce EMI; if shielding were an issue, it would likely cause intermittent errors, not a complete failure at this distance.

C

Distractor review

The switch does not support auto-MDIX

Auto-MDIX automatically corrects for straight-through or crossover cables. Even if disabled, a straight-through cable (as typical) would work, but length is the primary issue.

D

Distractor review

A poor crimp on one of the RJ45 connectors

A bad crimp could cause a link failure, but the technician confirmed proper termination. The length is a more likely cause given the distance.

Common exam trap

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Technical deep dive

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

  • Static NAT maps one inside address to one outside address.
  • PAT allows many inside hosts to share one public address using ports.
  • Inside local and inside global describe the private and translated addresses.
  • NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

  • Identify inside and outside interfaces first.
  • Check whether the scenario needs static NAT, dynamic NAT or PAT.
  • Do not confuse NAT matching ACLs with normal packet-filtering intent.

Related practice questions

Related 220-1101 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

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?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: The cable length exceeds the maximum allowable segment length — Ethernet over twisted-pair copper cable (e.g., Cat5e, Cat6) is limited to a maximum segment length of 100 meters (328 feet) by the IEEE 802.3 standard. At 120 meters, the signal attenuation is too high for reliable communication, causing the link to fail. The cable must be shorter or a repeater/switch must be added midway. EMI is unlikely with Cat6 STP, and auto-MDIX handles crossover issues. A bad crimp would usually show intermittent connectivity, not a complete failure at this distance.

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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