A user reports that their smartphone's Bluetooth will not pair with their car's hands-free system after a recent OS update. The car's system has been successfully paired with other phones. The technician has reset the phone's network settings and forgotten the car from the Bluetooth list, but the pairing still fails. Which of the following should the technician try NEXT?
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.
Distractor review
Perform a factory reset of the smartphone
This is a drastic step that may not address a compatibility issue between the OS and car firmware. It should be used as a last resort after all other troubleshooting.
Best answer
Check for a firmware update for the car's infotainment system
A recent smartphone OS update may have changed Bluetooth protocol behavior. Many car manufacturers release firmware updates to maintain compatibility. This is the most targeted next step.
Distractor review
Replace the Bluetooth antenna in the smartphone
The Bluetooth antenna is not likely the issue since the phone can still discover and attempt to pair. Antenna failure would typically result in no Bluetooth functionality at all.
Distractor review
Disable Wi-Fi on the smartphone before pairing
Disabling Wi-Fi can reduce interference but is not a common fix for pairing failures caused by OS update incompatibility. Network reset already clears similar settings.
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.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Check for a firmware update for the car's infotainment system — After network settings reset and forgetting the device, the next logical step is to check if the car's firmware is compatible with the new OS version. Car infotainment systems sometimes require firmware updates to maintain compatibility with updated smartphone OS versions. A factory reset (A) is drastic and may not resolve the compatibility issue; it should be a last resort. Replacing the Bluetooth antenna (C) is unlikely since the phone can still detect and attempt to pair with the car. Disabling Wi-Fi (D) might help with interference in some cases but is not the best next step after a network reset. Checking for car firmware updates is a targeted and non-intrusive step.
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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