Assuming a fairly reliable connection, if you have to send an ACK for each packet you get, for N packets you'll send N responses (ACK) back.
However, if you only send a response for missing/broken packets (NACK), if 1 of N packets arrived broken you'll only send 1 NACK.
Answer: The working memory model is a cognitive model of short term memory comprised of three main components; the central executive, the visuo-spatial sketchpad and the phonological loop. ... they suggests the components of working memory all have limited capacity.
Answer:-
The typedef specifier cannot be combined with any other specifier except for type-specifiers. The typedef-names are aliases for existing types, and are not declarations of new types. Typedef cannot be used to change the meaning of an existing type name (including a typedef-name).