Name: 
 

Chapter2


True/False
Indicate whether the statement is true or false.
 

 1. 
Standards assist in network design.
 

 2. 
Network functions are associated with only one layer of the OSI model.
 

 3. 
The Application layer includes software applications.
 

 4. 
Not all Transport layer protocols are concerned with reliability.
 

 5. 
For greater network efficiency, segmentation is preferred.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
Standards define the ____ performance of a product or service.
a.
ideal
c.
minimum acceptable
b.
most acceptable
d.
maximum acceptable
 

 2. 
The goal of ____ is to establish international technological standards to facilitate the global exchange of information and barrier free trade.
a.
ANSI
c.
ITU
b.
ISO
d.
ISOC
 

 3. 
The ____ is a specialized United Nations agency that provides developing countries with technical expertise and equipment to advance those nations’ technological bases.
a.
ANSI
c.
ITU
b.
ISO
d.
ISOC
 

 4. 
____ oversees the IAB (Internet Architecture Board).
a.
EIA
c.
ICANN
b.
ISOC
d.
ISO
 

 5. 
Which statement accurately describes the OSI model?
a.
It describes how software programs interact with humans.
b.
It prescribes the type of hardware or software that should support each layer.
c.
It describes how software programs interact with other software programs.
d.
It describes a theoretical representation of what happens between two nodes communicating on a network.
 

 6. 
Which OSI model layer initiates the flow of information?
a.
Physical
c.
Application
b.
Session
d.
Presentation
 

 7. 
Which OSI model layer manages data encryption?
a.
Physical
c.
Application
b.
Session
d.
Presentation
 

 8. 
In which OSI model layer does TCP operate?
a.
Physical
c.
Network
b.
Transport
d.
Data Link
 

 9. 
Which type of protocol is useful when data must be transferred quickly?
a.
connection-oriented
c.
TCP
b.
connectionless
d.
IP
 

 10. 
Transport layer protocols break large data units into ____.
a.
PDUs
c.
frames
b.
segments
d.
block IDs
 

 11. 
____ is the process of reconstructing segmented data.
a.
Reassembly
c.
Resegmenting
b.
Reengineering
d.
Realigning
 

 12. 
Each network node has ____ types of addresses.
a.
two
c.
four
b.
three
d.
five
 

 13. 
The process of determining the best path from Point A on one network to Point B on another is known as ____.
a.
mapping
c.
reconfiguring
b.
enhancing
d.
routing
 

 14. 
In which OSI model layer does IP operate?
a.
Physical
c.
Network
b.
Transport
d.
Data Link
 

 15. 
Which Data Link sublayer manages flow control?
a.
LLC
c.
Management layer
b.
MAC
d.
Addressing layer
 

 16. 
Which Data Link sublayer manages access to the physical medium?
a.
LLC
c.
Management layer
b.
MAC
d.
Addressing layer
 

 17. 
The ____ is a fixed number associated with a device’s NIC.
a.
LLC address
c.
logical address
b.
frame address
d.
physical address
 

 18. 
In which OSI model layer do hubs operate?
a.
Physical
c.
Data Link
b.
Network
d.
Physical and Data Link
 

 19. 
In which OSI model layer(s) do NICs operate?
a.
Physical
c.
Data Link
b.
Network and Physical
d.
Physical and Data Link
 

 20. 
Which IEEE standard describes Ethernet?
a.
802.1
c.
802.5
b.
802.3
d.
802.11
 

 21. 
Which IEEE standard describes specifications for wireless transmissions?
a.
802.1
c.
802.5
b.
802.3
d.
802.11
 

Completion
Complete each statement.
 

 1. 
____________________ are documented agreements containing technical specifications or other precise criteria that stipulate how a particular product or service should be designed or performed.
 

 

 2. 
The Application layer separates data into ____________________, or discrete amounts of data.
 

 

 3. 
____________________ is the process of gauging the appropriate rate of transmission based on how fast the recipient can accept data.
 

 

 4. 
____________________ protocols establish a connection with another node before they begin transmitting data.
 

 

 5. 
A network’s ____________________ represents the largest data unit the network will carry.
 

 

Matching
 
 
Match each item with a statement below:
a.
ANSI
f.
Session layer
b.
ISO
g.
Transport layer
c.
IEEE
h.
Network layer
d.
ISOC
i.
Physical layer
e.
Presentation layer
 

 1. 

 A professional membership society that helps to establish technical standards for the Internet.
 

 2. 

 A collection of standards organizations representing 162 countries.
 

 3. 

 Determines standards for the electronics industry and other fields, such as chemical and nuclear engineering, health and safety, and construction.
 

 4. 

 An international society composed of engineering professionals with goals of promoting development and education in the electrical engineering and computer science fields.
 

 5. 

 Translates network addresses into their physical counterparts.
 

 6. 

 Serves as a translator.
 

 7. 

 Generates signals as changes in voltage at the NIC.
 

 8. 

 Manages end-to-end delivery of data.
 

 9. 

 Coordinates and maintains communications between two nodes on the network.
 

Short Answer
 

 1. 
Describe the OSI model Session layer’s functions.
 

 2. 
Define a checksum and describe how Transport layer protocols implement them to ensure data integrity.
 

 3. 
Define and describe sequencing.
 

 4. 
Describe a network address including its addressing scheme, formats and alternate names.
 

 5. 
Describe the role of Network layer protocols including the formation of packets, routing and factors considered in routing decisions.
 

 6. 
Describe how error checking is handled in the Data Link layer.
 

 7. 
Define and describe the two parts of a physical address.
 

 8. 
Describe Physical layer protocol functions when receiving data.
 

 9. 
Compare Ethernet and Token Ring frames in terms of their operation on a network.
 

 10. 
Briefly describe IEEE’s Project 802.
 



 
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