Last Attempt H12-811_V1.0 Questions

Detailed Explanation:In this scenario, the MAC address 00e0-fc99-9999 is associated with multiple IP addresses through dynamic ARP learning, indicating that the host’s IP has changed several times. The ARP table on the switch shows multiple entries with different IPs mapped to the same MAC address, which is common when a device frequently updates its IP. As ARP is a dynamic protocol, these entries reflect the device's current and past IP associations. (Reference: HCIA-Datacom Training Material, ARP Operation and IP-MAC Mapping)

The telnetlib module in Python provides functions to interact with Telnet servers, allowing Python scripts to automate Telnet sessions. This module is widely used in network automation and scripting tasks, where Telnet is used to access and manage network devices remotely​.

If host A already has host B’s MAC address in its ARP cache, it can send packets directly to host B without needing to perform an ARP request. This cached information allows immediate packet delivery, assuming no network changes have occurred that would invalidate the ARP entry​.

Detailed Explanation:

Option A is valid; the destination is defined in CIDR format (129.1.0.0/16) with a specified outgoing interface.

Option B is valid; it uses a subnet mask format and specifies a next-hop IP.

Option D is also valid with the destination and mask defined and a next-hop IP.

Option C is incorrect; the syntax reverses the destination and next-hop values.

(Reference: HCIA-Datacom Training Material, Static Routing Configuration)