Internet Structure, POP, Cable Modem, and DSL: What You Need to Know
What is the basic structure of the internet? What is a POP? Compare and contrast cable modem and DSL.
a) Internet structure: Hierarchical; POP: Point of Presence; Cable modem: Shared bandwidth; DSL: Dedicated line
b) Internet structure: Mesh; POP: Packet Overload Protocol; Cable modem: Dedicated line; DSL: Shared bandwidth
c) Internet structure: Decentralized; POP: Place of Origin Protocol; Cable modem: High latency; DSL: Low latency
d) Internet structure: Centralized; POP: Point of Origin Protocol; Cable modem: Low bandwidth; DSL: High bandwidth
Answer:
The basic structure of the internet is hierarchical, with Tier 1 networks forming the backbone. POPs are locations where ISPs house equipment to connect to the internet. Cable modem uses shared bandwidth, while DSL has a dedicated line. Therefore, the correct answer is: (a).
Explanation:
The basic structure of the internet is hierarchical. The internet is composed of various layers, including servers, routers, and clients. At the top of the hierarchy are Tier 1 networks, which are interconnected to form the backbone of the internet. These networks are responsible for routing data across the internet. Below the Tier 1 networks are Internet Service Providers (ISPs), which provide connectivity to individual users.
A POP, or Point of Presence, is a location where ISPs house equipment to connect to the internet. It is typically a physical location with routers, switches, and other networking devices. POPs help distribute internet traffic and improve connectivity speed.
When it comes to comparing and contrasting cable modem and DSL, there are several differences:
Cable modem: It uses shared bandwidth, which means the available speed is divided among users in the same area. This can lead to a decrease in speed during peak usage times.
DSL: It uses a dedicated line, which means the user has a direct connection to the ISP. This generally provides more consistent speed and lower latency compared to cable modem.