CompTIA A+ Core 1 · 220-1101
Objective 5.7: Troubleshoot problems with wired and wireless networks
Practice questions for A+ Core 1 objective 5.7, “Troubleshoot problems with wired and wireless networks.” Every question is original, written to the 220-1101 exam objectives, and comes with a full explanation — answer them below to see instant grading.
This objective sits in Domain 5.0: Hardware and Network Troubleshooting, which is about 29% of the exam — so mastering it moves your readiness score meaningfully.
1.A user in a large open office reports intermittent wireless connectivity drops. A wireless survey shows their laptop is connecting to an AP 150 feet away instead of one 20 feet away. What is the MOST likely cause?
2.A remote branch office can access internal resources but cannot access the internet. The main office has internet access. What is the MOST likely cause?
3.A small office recently upgraded from a 100 Mbps switch to a Gigabit switch. Users report that network speeds have not improved. What is the MOST likely cause?
4.A technician runs `ipconfig` on a workstation and notes it has a valid IP address, subnet mask, and gateway, but cannot access network resources. The technician pings the gateway and gets a response. What should the technician check NEXT?
5.New devices connecting to the network are receiving IP addresses in the 10.10.200.x range instead of the expected 192.168.1.x range. A technician traces the issue to an unauthorized wireless router plugged in by an employee. What has occurred?
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