Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A user reports that their iPhone displays 'No SIM' even though the SIM card is properly inserted. The technician has already removed and reinserted the SIM, and performed a restart. Which of the following should the technician do NEXT to isolate 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
Distractor review
Reset network settings.
Resetting network settings might resolve software-related SIM detection issues, but it is not the best first step after a restart. It should be attempted after isolating the SIM card.
B
Distractor review
Check for a carrier settings update.
Carrier settings updates can address some SIM issues, but this is a less common cause and should be checked after confirming the SIM is functional.
C
Best answer
Try the SIM card in another compatible phone.
Testing the SIM in another phone directly isolates whether the issue is with the SIM or the iPhone. This is a fundamental troubleshooting step.
D
Distractor review
Replace the SIM card with a new one.
Replacing the SIM prematurely may not solve the problem if the iPhone is at fault. Isolating the SIM first is the correct procedure.
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.
CompTIA A+ hardware practice questions
Practise 220-1101 questions linked to CompTIA A+ hardware.
CompTIA A+ mobile devices practice questions
Practise 220-1101 questions linked to CompTIA A+ mobile devices.
CompTIA A+ networking practice questions
Practise 220-1101 questions linked to CompTIA A+ networking.
CompTIA A+ operating systems practice questions
Practise 220-1101 questions linked to CompTIA A+ operating systems.
CompTIA A+ security practice questions
Practise 220-1101 questions linked to CompTIA A+ security.
CompTIA A+ software troubleshooting questions
Practise 220-1101 questions linked to CompTIA A+ software troubleshooting questions.
CompTIA A+ operational procedures questions
Practise 220-1101 questions linked to CompTIA A+ operational procedures questions.
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: Try the SIM card in another compatible phone. — The best next step is to try the SIM card in another compatible phone. This helps determine whether the problem is with the SIM card or the iPhone. If the SIM works in another phone, the issue is likely with the iPhone's SIM reader or software. If it does not work, the SIM card may be faulty and needs replacement. Resetting network settings or checking for carrier updates are possible later steps, but isolating the SIM first is more efficient.
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.
Discussion
Loading comments…
Sign in to join the discussion.