DV Chapter 5 & 6 Flashcards
Chapter 5 & 6 notes
32-bit address is called
IPv4
128- bit address is called
IPv6
What layer is the Data link layer?
Layer 2
What gets encapsulated in Layer 2
Frames
Identifies which network layer protocol is being used
Logical Link Control (LLC)
It is responsible for data encapsulation and media access control. It provides data link layer addressing and it is integrated with various physical layer technologies.
Media Access Control (MAC)
What is the responsibility of the MAC sublayer?
Provides the method to get the frame on and off the media.
Four different types of Topology’s
Star / Extended Star / Bus / Ring
Duplex Communication
Simplex
Data can only flow in one direction
Half.
Dat flows in one direction at a time
Full.
Data flows in both directions at the same time
CSMA/CD
CSMA/CA
Carrier sense multiple access with collision
(CD)detection legacy Ethernet LAN’s
(CA)avoidance Wireless
What three parts does a Frame have
Header
Data
Trailer
NIC
Network Interface Card
What does the data link layer add to a Layer 3 packet to create a frame?
Header
Trailer
Data link layer protocols include:
Ethernet 802.11 Wireless Point-to-Point Protocol (PPP) High-Level Data ling Control (HDLC) Frame Relay
Layer 2 and Layer 3 address fields in the correct order?
Destin. NIC address / Source NIC address
Destin. IP address / Source IP address