A+exam12 Flashcards

1
Q

You plug in a new eSATA hard drive into the eSATA port on a desktop running Windows 10. The computer will not recognize the hard drive. What is the first thing you should do to resolve the problem?

A

Plug in power to the eSATA drive.

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2
Q

eSATA do not carry what?

A

power

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3
Q

You are setting up a small network that will not connect to the Internet. You want computers to be able to locate each other by using hostnames. What service will do this?

A

DNS

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4
Q

DNS

A

Domain Name Server
known as name resolver on the internet to hostname and IP adresses

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5
Q

DHCP

A

Dynamic Host Configuration protocol
configure IP addresses with clients automatically

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6
Q

FTP

A

File Transport protocol
downloads files

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7
Q

APIPA

A

Automatic Private IP Addressing
assign clients a private IP address automatically when they can’t reach the DHCP server.

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8
Q

When choosing an internal hard drive, which of the following rates of rotation could be considered the optimal speed for the best read and write performance?

A

10,000rpm
also generate the most heat

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9
Q

Which of the following devices works with MAC addresses to determine what to do with network traffic?

A

Switch(Layer 2 device)

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10
Q

Hubs and patch panels work at what layer?
and what do they deal with ?

A

layer 1
bits

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11
Q

Routers work at what layer?

A

layer 3

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12
Q

Which component is not considered a high-voltage hazard?

A

Computer case

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13
Q

OFDMA was introduced with which 802.11 standard?

A

802.11ax(Wi-Fi6)

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14
Q

OFDM

A

Orthogonal Frequency Division Multiple Access
can handle communications with several clients at once.

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15
Q

Your manager wants you to install a networked Internet appliance that prevents network traffic–based attacks and includes antimalware and antispam software. What should you install?

A

UTM
one-stop network protection devices

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16
Q

Which tool can be used to diagnose why Windows 10/11 is slow and sluggish?

A

Resource Monitor
also identify the source of the problem

17
Q

msconfig.exe

A

used to enable or disable services on startup and launch tools

18
Q

Device Manager MMC

A

used to view and modify devices

19
Q

Reliability Monitor

A

will display the reliability of the operating system,

20
Q

Which of the following standards supports communications up to 54 Mbps?

A

802.11g

21
Q
A