Refer to the Exhibit

Multiple Choice

Refer to the exhibit. Which two statements about MQTT messaging are true? (Choose two.)

A) Result code 5 means the connection is accepted; result code 0 means the connection is "refused, not authorized".
B) Redundant ClientIDs are supported by MQTT brokers.
C) MQTT does not support a "keep alive" functionality because it runs on top of TCP.
D) Result code 0 means the connection is accepted; result code 5 means the connection is "refused, not authorized".
E) Brokers can send the Last Will and Testament messages on behalf of the client.