Extra Network

Question 1

Internet Protocol (IP)

Answer 1

OSI layer 3. Provides connectionless delivery routing of datagrams

Question 2

Internet Control Message Protocol (ICMP)

Answer 2

Layer 3. Provides control and messaging capabilities

Question 3

Address Resolution Protocol (ARP)

Answer 3

Determines the data link layer address for known IP addresses

Question 4

Reverse Address Resolution Protocol (RARP)

Answer 4

Determines network addresses when data link layer addresses are known

Question 5

Point-to-Point Protocol (PPP)

Answer 5

OSI Layer 2, establishes a connection between 2 nodes

Question 6

Protocol Data Unit (PDU)

Answer 6

Used to refer to a unit of data in the OSI layer. E.G. Data link = Frame

Question 7

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Answer 7

Layer 2. A collision avoidance technology. Wireless uses this.

Question 8

Domain Name System (DNS)

Answer 8

A system that translates PC hostnames into IP addresses