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CompTia A+ > Number 3 > Flashcards

Number 3 Flashcards

1
Q

What does EMI stands for ? Pg 160

A

Electromagnetic interference

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2
Q

USB 3.0 is also known as what ? Pg159

A

Super speed connectors

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3
Q

T/F USB 2.0 supports bursting and streaming. Pg 160

A

False

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4
Q

T/F USB 2.0 is a full-duplex technology, meaning that all other devices will not share bandwidth. Pg 160

A

False. USB 2.0 is half duplex

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5
Q

T/F USB 2.0 provides a maximum of 100 milliamperes of current at low power and 550mA at high power. Pg 160

A

False. Lower power at 500mA not 550mA

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6
Q

The IEEE 1394 is about two things ___________ and ___________ . Pg 161

A

Speed and efficiency

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7
Q

What is the maximum data throughput of an IEEE ? Pg 161

A

400Mbps in half duplex

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8
Q

FireWire 800 uses a nine wire implementation known as ? Pg 162

A

Beta connectors

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9
Q

__________ and ___________ originally referred to the different encoding methods used with FireWire 400 and FireWire 800. Pg 162

A

Alpha and beta

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10
Q

There are two contacts on each RCA connector, what are they? Pg 163

A

The ground ring and the positive data pin in the middle

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11
Q

What is the most important input device for a PC ? Pg 163

A

Keyboard

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12
Q

The _________ is a 6-pin mini-DIN connector. Pg 164

A

The PS/2 connector

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13
Q

What does DVI stands for ? Pg 166

A

Digital video ( or visual ) interface

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14
Q

DVI-L is an combination of analog/digital pg167

A

False.

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15
Q

The DVI-D and DVI-I connectors come in two varieties, what are they? Pg 167

A

Single link and dual link

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16
Q

T/F DVI-A and DVI-I are both analog connectors. Pg 167

A

True.

17
Q

What does HDMI stands for? Pg 167

A

High definition multimedia interface

18
Q

Higher motion picture frame rates and digital audio comes from what connector. Pg 167

A

HDMI

19
Q

What is Luma ?

A

The colorless version of the original signal

20
Q

USB 3.0 requires that each pair in the cable should assembly be shielded. Why? Pg 160

A

To withstand the EMI in here to with transmission at higher frequencies

CompTia A+ (21 decks)

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