Backbone around the world is connected through:
Correct answer: D. All of these
- A. Undersea cables
- B. Satellite links
- C. Fiber optic cables
- D. All of these
Explanation
The answer is (d) All of these. The backbone of the internet is the high-speed infrastructure that connects major networks around the world. This infrastructure uses a combination of technologies, including:Undersea cables: These are fiber optic cables laid on the ocean floor to carry data traffic between continents.Satellite links: Satellites can be used to provide internet connectivity to remote areas or for backup purposes. However, satellite links typically have higher latency (delay) compared to undersea cables or fiber optics.Fiber optic cables: Fiber optic cables are made of glass fibers that transmit data using light pulses. They offer very high bandwidth and low latency, making them ideal for carrying large amounts of data traffic.
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About Networking and Internet
Networking covers LAN, MAN, WAN and wireless networks, network topologies, transmission media, devices such as switches, routers and modems, and the OSI and TCP/IP models. Internet concepts include IP addresses, DNS, URLs, web browsers, email, protocols such as HTTP, HTTPS, FTP and SMTP, and basic network security.
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