1.3 Connecting Mobile Devices Flashcards

1
Q

What is USB used for? (2)

A

charging and data transfer

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2
Q

What does a micro-B USB plug look like?

A

Like a smaller version of an upside-down HDMI connector

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3
Q

Older devices may use: micro-B or mini-B USB?

A

Mini-B USB

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4
Q

Which is larger, micro or mini USB?

A

Mini-B USB

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5
Q

What does Mini-B USB look like?

A

like a slightly flatter piece of bread

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6
Q

How many pins is USB-C?

A

24 pins

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7
Q

What can act as a USB 2.0/3.0/3.1/4 connection?

A

USB-C

(different signals can use the same connector)

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8
Q

What 3 other signals can USB-C transmit?

A
  1. DisplayPort
  2. HDMI
  3. Thunderbolt
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9
Q

What is Thunderbolt?

A

a powerful connectivity standard that delivers data, video signal, and laptop charging over a single connection.

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10
Q

What is Lightning?

A

An 8-pin digital proprietary Apple connector

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11
Q

What does a Lightning connector look like?

A

it’s flatter, white rectangle with copper lines

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12
Q

What are 3 advantages a lightning connector has over micro-USB?

A
  1. Higher power output for phones/tablets
  2. Can be inserted either way
  3. Simpler design
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13
Q

What is DB-9 also called?

A

DE-9

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14
Q

What signals are DB-9 connectors used for?

A

RS-232 signals

(industry standard since 1969)

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15
Q

What is DB-9 connectors traditionally used for?

A

as serial communication standards for modem connections

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16
Q

What does serial communication mean?

A

a communication method that uses 1 or 2 transmission lines to send and receive data continuously

17
Q

What are DB-9 serial interfaces now used for? Using what type of cable?

A

switches, routers, and firewalls using a USB to DB-9 converter cable

18
Q

How is NFC made available on your phone?

A

It’s built into it

19
Q

NFC acts as an ___ token or ____ card

A

NFC acts as an access token or identity card

20
Q

How much data is sent in NFC?

A

small amounts of data over a limited area

21
Q

What type of communication speed is Bluetooth? Over what range?

A

High speed communication over short distances

22
Q

Bluetooth uses a ____

A

PAN (personal area network)

23
Q

What is a Hotspot?

A

Extends the cellular data network on your phone by turning it into a personal wireless router