15 Questions
What is the unit of measurement for frequency as described in the text?
Kilohertz (kHz)
What does TDM stand for in the context of telecommunications?
Time Division Multiplexing
What is the purpose of Traceroute program in networking?
Displays the route from source to destination and measures delay
What is the process of packet-switching in networking?
Hosts break application-layer messages into packets for transmission
What is FDM in the context of telecommunications?
(FDM) Frequency Division Multiplexing
What is the unit of measurement for frequency as described in the text?
Kilohertz (kHz)
What does Time Division Multiplexing (TDM) do in telecommunications?
Divides time into slots for data transmission
What does Frequency Division Multiplexing (FDM) do in telecommunications?
Divides frequencies into narrow frequency bands
What is the purpose of Traceroute program in networking?
Displays the route from source to destination and measures the delay
What is packet-switching in networking?
Hosts break application-layer messages into packets for transmission
What is the unit of measurement for frequency as described in the text?
Megahertz (MHz)
What is the function of Traceroute program in networking?
Displays the route from source to destination and measures the delay
What does Time Division Multiplexing (TDM) do in telecommunications?
Divides time into slots for data transmission
What is the process of packet-switching in networking?
Hosts break application-layer messages into packets for transmission
What does Frequency Division Multiplexing (FDM) do in telecommunications?
Divides frequencies into narrow frequency bands for data transmission
Study Notes
Internet Structure
- The internet consists of three components: network edge, access networks, and network core
- Network edge comprises hosts (clients and servers) often located in data centers
- Access networks include residential, institutional, and mobile access networks
- Residential access networks connect to the internet from home
- Institutional access networks connect to the internet from school or company
- Mobile access networks connect to the internet through Wi-Fi, 4G, or 5G
Access Networks
- Wireless access networks connect via base stations (access points)
- Physical media used in access networks include guided media (copper, fiber, coaxial) and unguided media (radio)
Network Core
- The network core consists of interconnected routers and networks of networks
- Data is transmitted through the network using either circuit switching or packet switching
- Circuit switching dedicated a circuit per call with guaranteed performance and no sharing
- Packet switching sends data in discrete chunks with shared or dedicated access among users
Connecting to the Internet
- A dedicated internet connection provides a dedicated resource with no sharing
- A shared cable internet connection allows multiple users to share the speed or connection
Test your knowledge of internet structure and access networks with this quiz. Learn about how end systems are connected to edge routers and the different types of access networks including residential, institutional, and mobile networks.
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