Computer A cannot reach Computer B in this network: Which of the following will resolve the issue?

The correct answer is C. Establish a trunk connection between Switch A and Switch B. Both PCs reside in VLAN 1, but the only live link between the switches (Gi0/9) is currently in access VLAN 8, so VLAN 1 traffic never crosses. Turning the inter-switch port(s) into a trunk (allowing VLAN 1 across) will carry the users’ VLAN and restore end-to-end connectivity.

Submitted by tyler.j· Mar 6, 2026Network troubleshooting

Question

Computer A cannot reach Computer B in this network:

Which of the following will resolve the issue?

Exhibits

Options

ASet up link aggregation between Switch A and Switch B on Gi0/9 and Gi0/10.
BConfigure spanning tree on Switch A and Switch B.
CEstablish a trunk connection between Switch A and Switch B.
DPut Computer A and Computer B in the same /24 subnet.

How the community answered

(27 responses)

A
19% (5)
B
7% (2)
C
70% (19)
D
4% (1)

Explanation

Both PCs reside in VLAN 1, but the only live link between the switches (Gi0/9) is currently in access VLAN 8, so VLAN 1 traffic never crosses. Turning the inter-switch port(s) into a trunk (allowing VLAN 1 across) will carry the users’ VLAN and restore end-to-end connectivity.

Community Discussion

No community discussion yet for this question.

Full N10-009 Practice