Data Transmission Technologies Quiz

Date First Published: 22nd June 2022

This is the quiz about the data transmission technologies subtopic. All 10 questions in this quiz are covered in the articles.

Quiz Instructions

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Question 1

The correct answer is: c: They provide a much higher bandwidth and data transfer rate than other data transmission technologies.

They are much faster than copper cables because copper uses electrons for data transmission, whilst fibre is lighter and uses photons. Because light is faster than electrical pulses, fibre is capable of providing much higher bandwidth and data transfer rates. Fibre-optic cables actually provide the fastest data transfer rates of any data transmission medium.

Option A is incorrect as fibre optic cables are expensive to install due to special test equipment being required. The costs of producing fibre-optic cabling are higher than copper.

Option B is incorrect as fibre-optic cables are fragile and more vulnerable to damage. If they are twisted or bent too much, they will break and stop working.

Option D is incorrect as fibre optic cables are difficult to join together since they are fragile.

Question 2

The correct answer is: b: The measure of the maximum amount of data that can be transmitted within a physical or wireless communication network in a given period of time.

Option C is incorrect as that is baud rate.

Question 3

The correct answer is: a: Crossover cables connect devices using a central router, hub, or switch.

Crossover cables never connect devices using a central router, hub, or switch. They are used for directly connecting computers together and enabling host-to-host networking.

Option B, C, and D are true statements about crossover cables.

Question 4

The correct answer is: b: False

Even though it has been believed that it is short for ‘Wireless Fidelity’ for a long time, that has never been the official full word for Wi-Fi as 'Wi-Fi' is actually a brand name owned by the Wi-Fi Alliance.

Question 5

The correct answer is: b: Bluebugging.

Bluebugging is a step beyond bluesnarfing, since unlike that type of attack, where an attacker steals data and information from a device, such as text messages, photos, videos, calendars, emails, and contacts without the user’s permission, a bluebugged device allows an attacker to gain complete control, enabling them to do almost anything on the device, such as sending junk mail, spreading viruses, monitoring phone calls, sending and reading text messages, and accessing private photos and videos.

Question 6

The correct answer is: d: Through radio waves.

Options A and C are completely incorrect as those are different technologies.

Question 7

The correct answer is: a: Audio and video files can be transferred and played over the internet in a continuous flow without the need for them to be downloaded to a computer.

Question 8

The correct answer is: b: Receiving.

When downloading content from the internet, the user is receiving data from the internet and saving data to their device. If a user was sending data from their device to the internet, they would be uploading.