CWAP - Chapter 1 questions with correct answers

What are the 3 types of frames used for 802.11 communications? Answer Control, Management and Data Frames What are the 7 layers of the OSI model? Answer Application, Presentation, Session, Transport, Network, Data Link, Physical The Data Link Layer is broken up into these 2 sub layers? Answer The upper portion or Logical Link Control (LLC) and the lower portion or Media Access Control (MAC) sublayer A unit of data at the network layer? Answer Packet A unit of data at the Data-Link layer? Answer Frame What is a bit? Answer A binary digit, taking a value of either 0 or 1. Binary digits are a basic unit of communication in digital computing. A byte of information comprises of 8 bits What is the MSDU? Answer The Mac Service Data Unit (MSDU) is the data payload that contains the IP Packet plus some LLC Data. This data unit is created when the Network Layer sends data to the Data Link Layer. What type of frame can carry as MSDU payload in the frame body? Answer Data Frames