CompTIA Network+ (N10-008) — Question 468

A junior network engineer is trying to change the native network ID to a non-default value that can then be applied consistently throughout the network environment. Which of the following issues is the engineer attempting to prevent?

Answer options

• A. DDoS
• B. ARP spoofing
• C. VLAN hopping
• D. Rogue DHCP

Correct answer: C

Explanation

The engineer is trying to prevent VLAN hopping, which can occur when a VLAN's native ID is left at its default setting, allowing attackers to gain unauthorized access to multiple VLANs. The other options, such as DDoS and ARP spoofing, are related to different types of network attacks and are not directly mitigated by changing the native network ID.