Component 9/Unit 1 Self-Assessment Questions
Instructions: Choose the best answer for each of the following questions.
1. Starting with the layer that is closest to the user what is the correct order of layers of
the OSI model?
a. Physical, Data Link, Network, Transport, Session, Presentation, Application
b. Presentation, Data Link, Network, Transport, Session, Physical, Application
c. Application, Presentation, Session, Transport, Network, Data Link, Physical
d. Application, Physical, Session, Transport, Network, Data Link, Presentation
2. Starting with the layer closest to the network media/medium what is the correct order
of the layers of the TCP/IP model?
a. Network Access, Internetwork, Transport, Application
b. Network Access, Network, Transport, Application
c. Application, Transport, Internet, Network Access
d. Physical, Transport, Internet, Application
3. In the Network Layer of the OSI model, what is the protocol data unit (PDU) called?
a. Data
b. Packets
c. Segments
d. Frames
4. Which Application Layer protocol is used for converting host names and domain
names into IP addresses?
a. DHCP
b. SMTP
c. HTTP
d. DNS
5. Which Presentation Layer protocol specifies how messages must be formatted so
that they can be exchanged between different email systems?
a. SMTP
b. MIME
c. SSL
d. XDR
6. T/F IPv4 has 128 bits.
7. 132.16.9.0 is what class of IPv4 address?
a. Class A
b. Class B
c. Class C
d. Class D
8. A ____ is a term used to describe the movement of data from one router to another.
a. hop
b. skip
c. route
d. jump
Component 9/Unit 1
Health IT Workforce Curriculum
Version 2.0/Spring 2011
1
This material was developed by Duke University, funded by the Department of Health and Human Services, Office of the National
Coordinator for Health Information Technology under Award Number IU24OC000024.
9. T/F Ethernet uses CSMA/CA.
10. A _______________ is a unique address assigned to most network interface cards
(NICs) by the manufacturer for identification.
a. IP address
b. Unicast
c. Ethernet address
d. MAC address
Component 9/Unit 1
Health IT Workforce Curriculum
Version 2.0/Spring 2011
2
This material was developed by Duke University, funded by the Department of Health and Human Services, Office of the National
Coordinator for Health Information Technology under Award Number IU24OC000024.