Check Your Understanding Questions
Complete all the review questions listed here to test your understanding of the topics and concepts in this chapter. Appendix A, “Answers to the ‘Check Your Understanding‛ Questions,” lists the answers.
Which organization publishes and manages the Request for Comments (RFC) documents?
TIA/EIA
IETF
ISO
IEEE
What identifier is used at the data link layer to uniquely identify an Ethernet device?
MAC address
Sequence number
IP address
UDP port number
TCP port number
Which layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)
Data link
Transport
Network
Presentation
Application
Session
Physical
Which term refers to a common set of rules that are developed to define rules by which network equipment from different vendors can interoperate?
Domain
Standard
Model
Protocol
Which standards organization publishes current Ethernet standards?
ANSI
CCITT
IEEE
EIA/TIA
Which statement describes a MAC address?
It contains two portions: the network portion and a host portion.
It is 128 bits in length.
It identifies the source and destination addresses of hosts on the Internet.
It is a physical address assigned to an Ethernet NIC by the manufacturer.
Which elements do all communication methods have in common? (Choose three.)
Message priority
Message source
Transmission medium
Message type
Message data
Message destination
Which layers of the OSI model specify protocols that are associated with Ethernet standards? (Choose two.)
Physical layer
Transport layer
Session layer
Data link layer
Network layer
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
Network
Presentation
Transport
Session
Application
Which statement defines a data communications protocol?
An alliance of network device manufacturers
A set of product standards for types of network devices
An exchange agreement of network devices among vendors
A set of rules that govern the communication process