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What is the definition of a network?
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A network is a group of intelligent entities connected to exchange information.
What does the Presentation Layer of the OSI model handle?
Data translation and encryption.
What is a MAC address?
A unique identifier assigned to network interfaces for communications at the Data Link Layer.
What is the difference between LAN and WAN?
LAN (Local Area Network) is within a close geographical area; WAN (Wide Area Network) interconnects multiple LANs over large distances.
What kind of communication is one-to-many within a LAN?
Broadcast.
What type of cables are used in wired networks for robustness and reliability?
Twisted pair cables (Cat5, Cat6) and Fiber optics.
What is the main function of the Network Layer in the OSI model?
It deals with logical addressing and routing via smart switches.
Describe a bus topology.
Devices share a single communication line.
What distinguishes a switch from a hub in a network?
Switches direct data to the correct recipient using MAC addresses, while hubs repeat signals to all devices.
What is the dominant technology for computer networks?
Ethernet Networks.
What starts at the Data Link Layer in the OSI model?
Ethernet and the interpretation of 1s and 0s using MAC addresses.
What does the OSI model stand for?
Open Systems Interconnection model.
At which OSI layer does TCP/UDP operate?
The Transport Layer.
Explain the concept of AV over IP.
AV over IP involves the transmission of audiovisual data over standard network infrastructure, requiring high bandwidth and intelligent switches.
What is the role of the Physical Layer in the OSI model?
Handles voltage on wire, RF energy, light on fiber optics, essentially transmitting 1s and 0s.
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