Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A user configures a workstation with a static IP address of 192.168.1.50, subnet mask 255.0.0.0, default gateway 192.168.1.1, and DNS server 8.8.8.8. The workstation can ping other computers on the local network (e.g., 192.168.1.100) but cannot ping the default gateway (192.168.1.1) or access the internet. Other workstations using DHCP on the same network have no issues. Which of the following is the MOST likely cause?
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
The default gateway IP address is incorrect; it should be 192.168.0.1.
The gateway 192.168.1.1 is correct for the 192.168.1.0/24 subnet; the problem is the subnet mask, not the gateway address.
B
Best answer
The subnet mask is incorrectly set to 255.0.0.0, causing the gateway to be considered a remote host.
A subnet mask of 255.0.0.0 places the host in network 192.0.0.0, making the gateway (192.168.1.1) appear to be on a different network. The workstation will attempt to send traffic to a router instead of treating it as local, and since there is no router configured or the gateway is not a router, it fails.
C
Distractor review
The DNS server address is incorrect; the workstation should use a local DNS server.
Incorrect DNS would affect domain name resolution but would not prevent pinging the default gateway by IP address.
D
Distractor review
The static IP address conflicts with another device on the network.
IP conflicts can cause intermittent connectivity, but they would not consistently prevent pinging the gateway while allowing pings to other local devices.
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: The subnet mask is incorrectly set to 255.0.0.0, causing the gateway to be considered a remote host. — With a subnet mask of 255.0.0.0 (Class A), the network address becomes 192.0.0.0, so the IP 192.168.1.50 and gateway 192.168.1.1 are considered to be on different subnets. The workstation will try to route to the gateway via a router, but since it is misconfigured, it cannot reach it. DNS issues would not prevent pinging the gateway by IP. An IP conflict would cause intermittent issues but not necessarily an inability to ping the gateway.
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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