10 Questions
What is a commonly used network cable for transferring data between devices?
Category 5 cable with RJ-45 connector
Which device is used to connect different computer networks and transfer data packets?
Router
What type of device is a multiport repeater with several input/output ports?
Hub
Which network device forwards data to a specific destination device, unlike broadcasting it across the entire network?
Switch
What is the purpose of a bridge in a network?
Connect two separate Ethernet network segments
What is the main function of a gateway in a network?
Connecting different networks that use different protocols
Which reference model conceptualizes communication between heterogeneous systems?
OSI Model
What are the four layers of the TCP/IP Protocol Suite?
Application layer, Transport layer, Internet layer, Network access layer
Which function does the physical layer perform in a network?
Transmitting bits from one device to another
What is the role of a network interface card (NIC) in a computer?
Enabling the computer to connect to a network
Study Notes
Network Hardware
- Network cables are transmission media that transfer data between devices
- Category 5 cable with RJ-45 connector is a commonly used network cable
- Routers are connecting devices that transfer data packets between different computer networks
- Routers contain RJ-45 ports for connecting computers and devices using network cables
- Repeaters, hubs, and switches connect network devices together as a single segment
- Repeaters receive signals, regenerate them, and re-transmit to extend transmission distance
- Hubs are multiport repeaters with several input/output ports, broadcasting input to all ports
- Switches receive data, use packet switching to resolve destinations, and forward to specific devices
Network Software
- No notable points mentioned in the text
Reference Models
- OSI Model is a layered networking framework developed by International Standards Organization (ISO)
- OSI Model has seven interconnected layers: physical, data link, network, transport, session, presentation, and application
- TCP/IP Protocol Suite is a suite of protocols for communication structured in four layers: application, transport, internet, and network access
Physical Layer
- Physical layer transmits bits between devices, managing physical and electrical details
- Physical layer defines encoding types, communication modes, network connection types, physical topologies, and media bandwidth
- Functions of physical layer include representing encoding types, communication modes, network connection types, physical topologies, and media bandwidth
Test your knowledge on the basic concepts and components of computer networks, including network hardware, network software, and reference models. Explore the physical layer of the network and different types of transmission media like guided and wireless.
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