An LTM Administrator receives an email from the NOC stating that the switch connected to the backend server was shut down for maintenance. The BIG-IP device handles only UDP traffic. The BIG IP device did not fail over to a DR location when no pool members were available.
When the LTM Administrator checks the pool, it confirms that the monitor is still marking UP the pool member.
A tcpdump of the traffic shows the following output:

A list of the monitor configuration shows the following:

Which two modifications to the LTM configuration will mark this pool member down, when the switch is down? (Choose two.)