In VOIP, change in payload and code sizes of MPDUs sent by SS depends on which of the following?

Which duplexing technologies does 802.16 support?

Which certificate is used to allow the base station to identify the subscriber stations?

Length (size) of the key encryption (in bits) that the DES (data encryption standard) provides?

Length (in bits) of the header check sequence (HCS) field in a generic MAC header?

In the mobile WiMAX profiles, which one is mandatory?

Which multiplexing technology is more spectrum-efficient and cost-efficient?

Connection used for short, time-urgent MAC management messages?

Encryption algorithms included in the 802.16 standard security sublayer?

How many hash-based message authentication code (HMAC) keys are derived from the authorization key (AK) for communication between the subscriber station (SS) and the base station (BS)?

In OFDM the original signal is divided into how many subcarriers or subchannels?