Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A user's smartphone is unable to make or receive calls. The device shows full signal bars but when attempting to place a call, it immediately ends. The technician checks airplane mode and it is off. Which of the following should the technician check FIRST?
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
Reboot the phone.
Rebooting can resolve temporary software glitches, but the symptom of full signal bars with immediate call failure is more indicative of a SIM or account issue. The technician should check the SIM first as it's a hardware component that can be easily verified.
B
Best answer
Check the SIM card.
The SIM card holds the subscriber identity and carrier provisioning. If it is not properly seated, damaged, or deactivated, the phone may show signal bars (from the baseband) but cannot register on the network to make calls. Removing and reinserting the SIM or trying it in another phone can quickly diagnose this.
C
Distractor review
Check the Bluetooth settings.
Bluetooth settings do not affect cellular calling capability. While some phones may have a Bluetooth-related call audio routing issue, that would not prevent the call from starting. This is not a relevant first step.
D
Distractor review
Check the Wi-Fi calling settings.
Wi-Fi calling is a feature that routes calls over Wi-Fi when cellular signal is weak. Since the phone has full signal bars, Wi-Fi calling is likely not the cause. Moreover, if Wi-Fi calling were misconfigured, it would typically affect calls only in specific conditions, not cause immediate failure.
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: Check the SIM card. — When a device shows signal bars but calls fail immediately, the issue is often with the SIM card (Subscriber Identity Module). The SIM card may be loose, damaged, or not properly provisioned by the carrier. Rebooting should be tried later if the SIM check doesn't resolve it, but checking the SIM is the most direct and common fix for this symptom.
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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