Bluetooth — Questions and answers

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According to Dr. Ben Carter, what was a big problem with digital connections before the late 20th century?

Choices

  1. They were too colorful and distracting.
  2. They were a maze of wires, proprietary ports, and frustrating incompatibilities. ✓
  3. They were too small and hard to see.
  4. They only worked with very new devices.

Answer: They were a maze of wires, proprietary ports, and frustrating incompatibilities.

From page 1

What was the name of the 10th-century Viking king that "Bluetooth" is named after?

Choices

  1. King Harald Redbeard
  2. King Erik the Great
  3. King Harald 'Bluetooth' Gormsson ✓
  4. King Olaf the Strong

Answer: King Harald 'Bluetooth' Gormsson

From page 3

What ingenious technique did Haartsen use to help Bluetooth devices avoid interference?

Choices

  1. Sending signals on only one color.
  2. Using really long cables.
  3. Frequency hopping spread spectrum (FHSS). ✓
  4. Making devices very big.

Answer: Frequency hopping spread spectrum (FHSS).

From page 5

What other common technologies share the same crowded 2.4 GHz ISM band with Bluetooth?

Choices

  1. Only very old televisions.
  2. Wi-Fi, cordless phones, and microwave ovens. ✓
  3. Car radios and satellites.
  4. Only flashlights.

Answer: Wi-Fi, cordless phones, and microwave ovens.

From page 8

When did Bluetooth's use become really popular, especially with more and more mobile phones?

Choices

  1. In the late 1990s.
  2. In the early 2000s. ✓
  3. Just last year.
  4. Back in the 1980s.

Answer: In the early 2000s.

From page 9

According to Dr. Ben Carter, what did Bluetooth successfully do, similar to Harald Bluetooth's legacy?

Choices

  1. It helped people make new friends.
  2. It made everyone wear blue clothes.
  3. It unified different devices into a seamless, personal network. ✓
  4. It taught everyone how to sail a Viking ship.

Answer: It unified different devices into a seamless, personal network.

From page 10