Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A technician is troubleshooting a workstation that is connected to a managed switch. The link lights on both the workstation and switch are illuminated, but the workstation cannot obtain an IP address from the DHCP server. The technician manually configures a static IP address (192.168.1.100, subnet mask 255.255.255.0, default gateway 192.168.1.1) on the workstation, but it still cannot ping the router (192.168.1.1). Other workstations on the same switch can ping the router successfully. Which of the following is the MOST likely cause of this 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
Distractor review
Duplicate IP address on the network
A duplicate IP address would cause an address conflict warning, but other workstations on the same switch can communicate, and the static IP 192.168.1.100 is unlikely to be duplicated since the technician just configured it. More importantly, a duplicate IP would typically still allow some connectivity, but here there is no connectivity at all.
B
Best answer
Speed/duplex mismatch between the switch port and the workstation NIC
A speed/duplex mismatch can cause the link to be up but with severe packet loss or complete communication failure, even though the link lights are on. This explains why the workstation cannot ping the router while other workstations on the same switch can.
C
Distractor review
Incorrect subnet mask
The subnet mask 255.255.255.0 is correct for the 192.168.1.0/24 network, and the workstation can ping other local devices? Actually, the problem states it cannot ping the router. If the subnet mask were incorrect, the workstation might still be able to ping local devices but not the gateway. However, the technician set the mask correctly.
D
Distractor review
Damaged Ethernet cable
A damaged cable would typically cause the link lights to be off or to blink intermittently. Since both link lights are solidly on, a damaged cable is unlikely. Moreover, other workstations on the same switch work fine, so the cable is probably not the issue.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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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?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Speed/duplex mismatch between the switch port and the workstation NIC — A speed/duplex mismatch between the switch port and the network interface card (NIC) can cause the link to appear active at both ends, yet the connection may have a high rate of errors and collisions, preventing successful communication. This is a common issue when one side is configured for auto-negotiation and the other is forced to a specific speed/duplex, or when auto-negotiation fails. The technician should verify the speed and duplex settings on both the switch port and the workstation’s NIC.
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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