Network TroubleshootingCâu 86 / 100
A network experiences a sudden broadcast storm after a technician added a second cable between two switches. What is the most likely cause?
a.A DNS misconfiguration
b.An expired DHCP lease
c.An incorrect subnet mask
d.A switching loop from a redundant link without STP
Giải thích
Adding a redundant link between switches without a working Spanning Tree Protocol creates a Layer 2 loop, producing a broadcast storm. Enabling or verifying STP resolves it. Broadcast storms rapidly saturate switch bandwidth and CPU.
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- A user reports they can access internal resources but not the internet. Other users are unaffected. What should the technician check first on that host?
- Which command tests basic reachability to a remote host by sending ICMP echo requests?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với CompTIA Network+ (N10-009) · Quy trình kiểm tra