9 Lesson 2 Networking Questions HOMEWORK

The main Google server is in the United States. When you use Google to find the answer to a question, what transmission medium is used? (Select from satellite transmission, undersea fibre optic cable, copper telephone cables.)

• satellite transmission

• undersea fibre optic cable

• copper telephone cables

Answer explanation

When using Google, data is primarily transmitted via undersea fibre optic cables, which provide high-speed internet connectivity across continents, making them the most efficient medium compared to satellite or copper cables.

Define the term bandwidth.

• The range of frequencies within a given band.

• The speed of data transfer in a network.

• The amount of data that can be carried​ across the network.

• The physical distance between network nodes.

Answer explanation

Bandwidth refers to the range of frequencies within a given band, which is crucial for understanding how much data can be transmitted over a network. The other options describe different concepts related to data transfer.

Explain the difference between uploading and downloading data from the Internet.

• Uploading is sending data from your device to the Internet, while downloading is receiving data from the Internet to your device.

• Uploading is faster than downloading.

• Downloading is sending data from your device to the Internet, while uploading is receiving data from the Internet to your device.

• There is no difference between uploading and downloading.

Answer explanation

The correct choice explains that uploading is the process of sending data from your device to the Internet, while downloading is receiving data from the Internet to your device. This distinction is fundamental to understanding data transfer.

Why is uploading generally much slower than downloading?

• Because upload speeds are typically lower than download speeds.

• Because downloading requires more bandwidth.

• Because uploading uses a different protocol.

• Because upload speeds are prioritized over download speeds.

Answer explanation

Uploading is generally slower than downloading because upload speeds are typically lower than download speeds. Most internet connections are designed to prioritize download speeds for user activities like streaming and browsing.

Buffering is used when you download a film from the Internet because:

• It allows for smooth playback by preloading data.

• It increases the download speed of the film.

• It reduces the file size of the film.

• It enhances the video quality.

Answer explanation

Buffering allows for smooth playback by preloading data, ensuring that the film plays without interruptions. This is essential for a seamless viewing experience, unlike the other options which do not directly relate to playback.

Explain why you may sometimes get a message “Loading…” while you are watching a movie online.

• Due to slow internet connection

• Because of a server issue

• High traffic on the website

• All of the above

Answer explanation

You may see a "Loading..." message due to various reasons: a slow internet connection, server issues, or high traffic on the website. All these factors can affect streaming performance, making "All of the above" the correct answer.