Exam N10-009 topic 1 question 302 discussion

Actual exam question from CompTIA's N10-009

Question #: 302
Topic #: 1

Users report connectivity issues after a network switch is replaced. There are three separate subnets for users, voice, and servers. The users cannot reach the resources in the server subnet. Upon investigation, a separate voice switch has thousands of discarded packets, but no users report issues making or receiving calls. Which of the following is most likely the issue?

A. Incorrect cable
B. Port administratively disabled
C. VLAN misconfiguration
D. Duplex setting

Show Suggested Answer

Suggested Answer: C 🗳️

by UnicornFlow at May 8, 2025, 1 a.m.

Comments

Submit Cancel

Ayim

1 month, 2 weeks ago

Selected Answer: C

The users are split across three subnets (users, voice, servers), which strongly suggests VLANs are used. After the switch replacement, users cannot reach server resources, which points to inter-VLAN communication failing. The fact that voice switch shows packet discards but no voice issues implies the voice VLAN is working, but other VLANs may not be properly tagged or routed.

upvoted 1 times

...

UnicornFlow

1 month, 2 weeks ago

Selected Answer: C

A VLAN misconfiguration can lead to network segmentation issues, preventing devices from communicating across different subnets. In this scenario, users cannot reach the server subnet, which suggests that VLAN settings may not be properly assigned or propagated across the newly replaced switch. Additionally, the discarded packets on the voice switch indicate that VLAN traffic may not be correctly routed or tagged.

upvoted 1 times

...