1.1.f (ii) Latency
In UDP we have less data protocol latency as compared to TCP. TCP would have to ack and even set up a connection before sending.
In UDP we just start sending. However it is important to note that UDP applications themselves are more latency prone.
The choice of UDP means the application needs real-time repsonse/data. So any latency due to congestion or queueing is going to be detrimental to the receiver.
The most famous example of this is voice, which requires low jitter, and low latency.
1.1.f (ii) Latency