-Identifying physical network devices.
-Controlling how messages are propagated through the network.
answer
Which two of the following are included as part of Data Link layer specifications?
-Composition of electrical signals as they pass through the transmission medium.
-Identifying physical network devices.
-Synchronizing individual bits as they are transmitted through the network.
-Controlling how messages are propagated through the network.
question
-Routes messages between networks
answer
In the OSI model, what is the primary function of the Network layer?
-Allows applications to establish, use, and end a connection
-Ensures that packets are delivered with no loss or duplication
-Transmits data frames
-Routes messages between networks
question
-Specify data format (such as file formats)
-Encrypt and compress data
answer
In the OSI model, which of the following functions are performed at the Presentation layer? (Select two.)
-Maintain separate client connections
-Specify data format (such as file formats)
-Handle general network access, flow control, and error recovery
-Transmit data frames
-Encrypt and compress data
-Provide network services
question
-Integration of network functionality into the host operating system
-Enabling communication between network clients and services
answer
In the OSI model, which of the following functions are performed at the Application layer? (Select all that apply.)
-Integration of network functionality into the host operating system
-Conversation identification
-Enabling communication between network clients and services
-Data translation
question
-Movement of data across network cables
answer
Which of the following functions are performed at the Physical layer of the OSI model?
-Conversation identification
-Enablement of network services
-Movement of data across network cables
-Provision of an environment in which to run network applications
-Data translation
question
-LLC
-MAC
answer
The Data Link Layer of the OSI model is comprised of two sublayers. What are they?
(Select two.)
-DLC
-LAT
-LLC
-SAN
-MAC
question
-Defining a unique hardware address for each device on the network
-Letting devices on the network have access to the LAN
answer
Which of the following are functions of the MAC sublayer? (Select two.)
-Defining a unique hardware address for each device on the network
-Mapping hardware addresses to linklayer addresses
-Creating routing tables based on MAC addresses
-Letting devices on the network have access to the LAN
question
-Transport
answer
Which OSI model layer is responsible for guaranteeing reliable message delivery?
-Application
-Data Link
-Transport
-Session
Match each layer of the TCP/IP model on the left with the corresponding layer of the OSI model on the right. Each option on the left can be used more than once.
-Network Interface -------Presentation
-Application --------------Data Link
-Internet ------------------Application
-Transport -----------------Session
-Network
-Transport
question
(Device or Function) ----(OSI Model Layer)
-HTTP --------------------Application
-ASCII --------------------Presentation
-Session ID number -----Session
-Port numbers -----------Transport
-Router -------------------Network
-Switch -------------------Data Link
-Wireless access point ---Physical
answer
Match the networking function or device on the left with the OSI model layer it is associated with on the right.
-Application ----Session ID number
-Presentation ---Wireless access point
-Session --------Router
-Transport ------Switch
-Network -------Port numbers
-Data Link ------ASCII
-Physical -------HTTP
question
-Network
answer
At what OSI layer does a router operate to forward network messages?
-Physical
-Data Link
-Session
-Network
-Transport
question
-Physical
answer
At which layer of the OSI model do hubs operate?
-Data Link
-Layer 3
-Physical
-Internet
question
-Network interface card
-Switch
answer
Which of the following devices operate at OSI model layer 2? (Select two.)
-Hub
-Repeater
-Router
-Network interface card
-Switch
-Firewall
Which three of the following devices operate at the Data Link layer of the OSI model ?
-Switches
-Repeaters
-Hubs
-Network interface cards (NICs)
-Routers
-Bridges
question
-Data Link
answer
Your company purchases a new bridge, which filters packets based on the MAC address of the destination computer. On which layer of the OSI model is this device functioning?
-Transport
-Data Link
-Presentation
-Session
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