Name:
Class:
Date:
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1. The Transport layer is the same in both the OSI model and the TCP/IP model.
a.
True
b.
False
ANSWER:
True
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
2. The IEEE separated the OSI model Physical layer into the LLC sublayer and the MAC sublayer.
a.
True
b.
False
ANSWER:
False
POINTS:
1
REFERENCES:
IEEE 802 Extensions to the OSI Reference Model
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
3. The Network layer communicates with the Data Link layer and the Session layer.
a.
True
b.
False
ANSWER:
False
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
4. The maximum transmission unit for Ethernet is 1518 bytes.
a.
True
b.
False
ANSWER:
True
POINTS:
1
REFERENCES:
Transport Layer
QUESTION TYPE:
True / False
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
Name:
Class:
Date:
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Class:
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b.
Application, Session, Transport, Presentation, Network, Data Link, Physical
c.
Physical, Data Link, Network, Transport, Session, Presentation, Application
d.
Physical, Session, Network, Data Link, Transport, Presentation, Application
ANSWER:
c
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
9. What is a PDU?
a.
It is an Application layer protocol that handles delivery of messages.
b.
It is a unit of measurement for the maximum amount of data that can be transferred.
c.
It is the name given to the unit of information used by each layer.
d.
It is a Network layer protocol that handles path determination
ANSWER:
c
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
10. What information would you find in the header of a Transport layer PDU?
a.
destination IP address
b.
cyclic redundancy check
c.
source MAC address
d.
window size
ANSWER:
d
POINTS:
1
REFERENCES:
Transport Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
11. At each layer of the OSI model, data is appended to the original message and then sent on to the next lower
layer. What is this process called?
a.
encapsulation
b.
deencapsulation
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c.
packetization
d.
checkpointing
ANSWER:
a
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
12. What does the Transport layer use to make sure that a message is reassembled correctly on the receiving
device?
a.
source port number
b.
window Size
c.
destination port number
d.
sequence number
ANSWER:
d
POINTS:
1
REFERENCES:
Transport Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
13. What is the IEEE standard that governs all forms of Ethernet media and interfaces?
a.
802.11
b.
802.3
c.
802.15
d.
802.2
ANSWER:
b
POINTS:
1
REFERENCES:
IEEE 802 Specifications
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
14. What is the IEEE standard that sets the standards for wireless networking?
a.
802.16
b.
802.3
c.
802.15
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d.
802.11
ANSWER:
d
POINTS:
1
REFERENCES:
IEEE 802 Specifications
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
15. You are using tracert to determine the path a packet takes across your internetwork. Which OSI Model
layer are you examining?
a.
Network
b.
Transport
c.
Session
d.
Data Link
ANSWER:
a
POINTS:
1
REFERENCES:
Network Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
16. One job that a router performs is that of gatekeeper, which means that it can be configured to only allow
certain packets access into the network based on a list of rules. What is that process called?
a.
media control
b.
packet forwarding
c.
access control
d.
signal bounce
ANSWER:
c
POINTS:
1
REFERENCES:
Network Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
17. You are working at the help desk and you get a message that a user cannot access the Internet. You open a
command prompt, ping the workstation’s IP address, and get a response. You ask the user to try the Internet
again. He does so with the same result-no connection. Which type of device is most likely to be the problem?
a.
Physical layer device
b.
Data Link layer device
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c.
Network layer device
d.
Presentation layer device
ANSWER:
c
POINTS:
1
REFERENCES:
Network Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:53 PM
18. What function does the Logical Link Control sublayer of the Data Link layer provide?
a.
coordinates communication between applications
b.
error recovery and flow control
c.
physical device addressing
d.
controls access to network media
ANSWER:
b
POINTS:
1
REFERENCES:
IEEE 802 Extensions to the OSI Reference Model
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
19. What layer is responsible for making sure that the data that it sends and receives is in a format that the
receiving and sending computers can understand?
a.
7
b.
6
c.
5
d.
4
ANSWER:
b
POINTS:
1
REFERENCES:
Presentation Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
20. At what layer do NICs operate?
a.
Transport
b.
Data Link
c.
Physical
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d.
Network
ANSWER:
b
POINTS:
1
REFERENCES:
Data Link Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
21. Which layer is responsible for the encoding of signals?
a.
3
b.
1
c.
5
d.
7
ANSWER:
b
POINTS:
1
REFERENCES:
Physical Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
22. What does the Transport layer use to determine the size of a segment?
a.
MTU
b.
LLC
c.
PDU
d.
TCP
ANSWER:
a
POINTS:
1
REFERENCES:
Transport Layer
QUESTION TYPE:
Multiple Choice
HAS VARIABLES:
False
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
23. At which layer would you find errors that were caused by EMI?
a.
Data Link
b.
Transport
c.
Physical
d.
Network
ANSWER:
c
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Class:
Date:
Name:
Class:
Date:
Name:
Class:
Date:
Name:
Class:
Date:
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Page 11
37. Hubs operate at this layer.
ANSWER:
g
POINTS:
1
38. This sublayer manages access to the physical medium.
ANSWER:
h
POINTS:
1
39. This sublayer is responsible for error recovery.
ANSWER:
i
POINTS:
1
40. This is the general framework for how networking systems should operate.
ANSWER:
j
POINTS:
1
41. What are the benefits to using a layered approach?
ANSWER:
In a layered approach, each layer is only responsible for a specific task instead of the end-to–
end communication. Therefore, when a problem occurs, it is easier to pinpoint the layer that
is affected and then troubleshoot only that issue. In addition, by using a layered approach,
upgrades in technology can be to individual layers without affecting the others.
POINTS:
1
REFERENCES:
Role of a Reference Model
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:35 PM
42. List the layers of the OSI model from the top down, along with their counterparts in the TCP/IP model.
ANSWER:
Application-Application Presentation-Application Session-Application Transport-
Transport Network-Internetwork Data Link-Network Access Physical-Network
Access
POINTS:
1
REFERENCES:
Structure of the OSI Model
QUESTION TYPE:
Subjective Short Answer
HAS VARIABLES:
False
STUDENT ENTRY MODE:
Basic
DATE CREATED:
7/19/2019 2:35 PM
DATE MODIFIED:
7/19/2019 2:54 PM
43. Name the PDU at each layer of the OSI model.
ANSWER:
The PDU for the Application, Presentation, and Session layers is data. The PDU at the
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Name:
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Date: