Question 400
An acceptance check at Harborview Logistics has two requirements: (1) form a modified EUI-64 interface identifier from a 48-bit MAC, and (2) connect two IP subnets and forward packets between them. Which plan correctly handles both requirements?
Explanation
Correct Answer
Both outcomes are covered: (1) Modified EUI-64 expands the 48-bit MAC and flips the U/L bit to form a 64-bit identifier. (2) Routing selects a next hop from a destination IP prefix instead of forwarding solely by MAC address. Neither action is a substitute for the other.
Incorrect Answers
The second step covers (2), but the first addresses protect wireless payloads from unauthenticated eavesdropping. A protected WLAN uses authenticated key establishment and link encryption, not only SSID hiding. It leaves outcome (1) unfulfilled.
Neither step is the requested pair: Inspect show ipv6 interface for the FE80::/10 link-local address is for verify that an IPv6 interface has a link-local address, and Investigate collisions and faulty transmission or cabling is for identify a surge of runts on a shared half-duplex Ethernet link. Link-local addresses are used for on-link neighbor discovery and routing adjacencies. The proposed plan misses the two stated outcomes.
The first step covers (1), but the second addresses learn which switch port owns a newly seen source MAC. A learning switch updates its CAM table from the incoming frame's source address. It leaves outcome (2) unfulfilled.