Lesson 1 Terms

Question 1

ARPANET

Answer 1

Early internet, first connection of four nodes between UCLA, Stanford, UCSB, Univ. of Utah

Question 2

NCP

Answer 2

Network Control Protocol, an early protocol that was part of ARPANET for host-to-host protocol

Question 3

TCP/IP

Answer 3

Transmission Control Protocol / Internet Protocol

Question 4

DNS

Answer 4

Domain Name System, designed to translate domain names to IP addresses by a scalable distributed mechanism

Question 5

OSI

Answer 5

Open System Integration

Question 6

7 layers of OSI

Answer 6

Application, Presentation, Session, Transport, Network, Data Link, Physical

Question 7

5 layers of IP Stack

Answer 7

Application, Transport, Network, Data Link, Physical

Question 8

Message

Answer 8

Packet of information in the Application layer

Question 9

Segment

Answer 9

Packet of information at the Transport layer

Question 10

Datagram

Answer 10

Packet of information at the Network layer

Question 11

Frame

Answer 11

Packet of information at the Data Link layer

Question 12

Role of the Application layer

Answer 12

Top layer for interactions

Question 13

Role of Presentation layer

Answer 13

Intermediate role for formatting information and delivery to top layer

Question 14

Role of Session layer

Answer 14

Mechanism that manages different transport streams that belong to the same session between end-user applications

Question 15

Role of the Transport layer

Answer 15

End-to-end communication between hosts

Question 16

Role of Network layer

Answer 16

Moving datagrams from one internet host to another

Question 17

Role of Data Link layer

Answer 17

Move frames from one node to next node

Question 18

Role of Physical layer

Answer 18

Interactions with actual hardware

Question 19

Describe E2E Principle

Answer 19

Application functionality resides at a higher level at the ends of the network, allowing the middle to be simple and can evolve