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NSA

chapter1.3

QuestionAnswer
In the OSI model, which of the following functions are performed at the presentation layer? select 2 Encrypt and compress data specify data formats such as file formats
In the OSI model, which of the following functions are performed @ the application layer? Enabling communication between networks clients & services Integration of network functionality into the host operating system
Which of the following functions are performed at the physical layer of the OSI model? Movement of data across network cables
The Data Link Layer of the OSI model is comprised of two sublayers. LLC MAC
Which of the following functions of the MAC sublayer? Defining a unique hardware address for each device on the network Letting devices on the network to have access to the LAN
Which OSI model is responsible for guaranteeing reliable message delivery Transport
At what OSI layer does a router operate to forward network messages? Network
Your company purchased new bridge ,which filter packets based on MAC address of the destination computer. On which layer of the OSI model is this device functioning? Data LInk
Which layer of the OSI model do hubs operate? Physical
Which of the devices operate @ OSI model layer 2? NIC Switch
Which 3 of the devices operate @ the Data Link layer of the OSI model? Bridges Switches NIC
Which 2 are part of the Data Link specifications? controlling how messages are propagated through the network Identifying physical network devices
In the IOS model, what is the primary function of Network layer? Routes messages between networks
Created by: charlareed78
 

 



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