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Networking Quiz 3
Chapter 3
36
Computer Networking
Undergraduate 3
10/17/2014

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Term
How many layers does the OSI model have?
Definition
Seven
Term
How many layers does the TCP/IP model have?
Definition
Four
Term
True/False: The OSI model defines how data is handled at different layers and identifies framework of TCP/IP protocols and hardware
Definition
True
Term
What does OSI stand for?
Definition
Open Systems Interconnection
Term
What are the layers of the OSI model?
Definition
7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data link
1. Physical
Term
What is the goal of the OSI model?
Definition
Operating systems (OS) independence: to allow computers with any OS to communicate
Term
Who was the OSI model created by?
Definition
International Organization for Standardization (ISO)
Term
What does each layer interact with?
Definition
Only adjoining layers
Term
What does the Application layer interact with?
Definition
-Presentation layer
-End user
Term
What is the purpose of the presentation layer?
Definition
To act as a translator and determine how to format and present data
Term
What is the purpose of the Session layer?
Definition
To establish, maintain, and terminate sessions and ensure the data from different applications are kept separate
Term
Term: Lasting connection between two networking devices
Definition
Session
Term
What are the three modes of transmission used by computers?
Definition
-Simplex
-Half-duplex
-Full-duplex
Term
Term: Mode of transmission in which data can only be sent one way (least common)
Definition
Simplex
Term
Term: Mode of transmission in which data can be sent both ways but only one at a time
Definition
Half-duplex
Term
Term: Mode of transmission in which data can be sent and received at the same time
Definition
Full-duplex
Term
What is the purpose of the transport layer?
Definition
To handle flow control, reliability, and error checking
Term
How does the transport layer work?
Definition
It divides the data into segments then reassembles the received data; Also manages the order of the data
Term
Term: Data traveling on the Transport layer
Definition
Segments
Term
What are the two primary protocols of the Transport layer?
Definition
-Transmission Control Protocol (TCP)
-User Datagram Protocol (UDP)
Term
How does the Transmission Control Protocol (TCP) work?
Definition
Establishes a session that will not transmit data until a session is established (Connection-oriented)
Term
How does the User Datagram Protocol (UDP) work?
Definition
Data is sent without first verifying a connection with some data loss; accepts some data loss (Connectionless)
Term
What is the purpose of the network layer?
Definition
To determine the best route to the destination
Term
Term: Data travelling on the Network layer
Definition
Packet; Datagram
Term
What resolves IP addresses to the physical or Media Access Control address?
Definition
Address Resolution Protocol (ARP)
Term
Term: Data travelling on the data link layer
Definition
Frames
Term
Term: Data units in layers 5, 6, and 7
Definition
Protocol Data Unit (PDU)
Term
What are the four layers of the TCP/IP model?
Definition
4. Application layer
3. Transfer layer
2. Internet layer
1. Link layer
Term
What is the function of the TCP/IP model's application layer?
Definition
To access network resources and display them for the end user
Term
What is the function of the TCP/IP model's transfer layer?
Definition
Manages sessions and data transfer
Term
What is the function of the TCP/IP model's internet layer?
Definition
Control movement and routing of packets between networks
Term
What is the function of the TCP/IP model's link layer?
Definition
Defines how data is transmitted over media
Term
A crossover UTP cable is used to connect a switch to a __.
Definition
Router
Term
What is the most common type of local area network used today?
Definition
CAT 5e
Term
True/False: The UDP data packet cannot be tracked
Definition
True
Term
What are the four layers of the TCP/IP model?
Definition
4. Application
3. Transfer
2. Internet
1. Network Interface
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