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CompTIA A+ Core 1 > Core 1 > Flashcards

Core 1 Flashcards

1
Q

Color Depth

A

Either the number of bits used to indicate the color of a single pixel, video frame buffer, or the number of bits used

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2
Q

How to reset the BIOS password

A

Removing the CMOS battery, wait a few minutes, reinsert the CMOS battery, and then attempt to power on the computer again

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3
Q

Which of the following DC voltages are not found within a printer when the laser printer converts AC power into DC power for use?

A
  • 24 VDC
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4
Q

Rapid Elasticity

A

Can be a security threat to data due to data remanences.

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5
Q

Metered Services

A

Pre-paid or pay-per-use based on the actual usage of the service resources

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6
Q

Resource Pooling

A

Allows a virtual environment to allocate memory and processing capacity of a VMs use

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7
Q

On-Demand

A

available at any time

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8
Q

Coaxial Cable

A

used to transmit video, communications, and audio
protect the data transmission from the effects of EMI

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9
Q

Optical Fiber

A

ultra fine core of glass to carry the light pulses along the core and a protective coating

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10
Q

Fiber Optic

A

terminated by a connect
use light signals to carry data across a cable at high bandwidths

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11
Q

VM Escapes

A

malware running on a guest OS jumping to another guest or host
BIGGEST THREAT to virtualized systems

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12
Q

Virtual Network Interface card (vNIC)

A

the configuration of a VM connected to a network

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13
Q

Rogue VM

A

a VM that has been installed without authorization

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14
Q

VM sprawl

A

the uncontrolled deployment of more and more VMs

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15
Q

Lights steady on a network interface card (NIC)

Light is blinking on the NIC

A

There is no network activity

Data is passing over the NIC to the network

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16
Q

Service Location Protocol ( SLP)

A

is a protocol or method of organizing and locating the resources ( printers, disk drives, etc)

uses port 427

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17
Q

HTTPS

A

secure protocol used to provide web content to browsers
Port 443

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18
Q

LDAP

A

protocol used to access and update information
uses port 389

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19
Q

Server Message Block ( SMB)

A

used for requesting files from windows servers and delivering them
port 445

20
Q

FTP

A

sends the data over port 20

21
Q

eSATA

A

used for connecting external drives to provide additional storage, must use shielded cable

22
Q

Syslog server

A

used to capture logs from different devices

23
Q

Proxy Server

A

acts as the in between for a client requesting a resource and the server providing the resource

24
Q

Domain Name System (DNS)

A

uses port 53

25
Q

Dynamic Host Configuration Protocol (DHCP)

A

port 67
automatically assign IP addresses

26
Q

Intrusion prevention system (IPS)

A

detects and prevents threats

27
Q

Intrusion detection system (IDS)

A

detects threats

28
Q

Accelerated Graphics Port (AGP)

A

parallel expansion card standard that was designed for attaching a video card to a computer system

29
Q

What can cause system reboots / continuous reboots

A

a bad or faulty RAM module
diminished system performance
slow loading of websites and programs

30
Q

OS not found, error at boot time is an indication that

A

MBR (Master Boot Record) is corrupted or faulty
Reboot into the windows recovery mode and use the bootrec/fixboot

31
Q

USB 1.1
USB 2.0

A

12 Mbps
480 Mbps

32
Q

If there were configuration changes to the DNS or DHCP server then

A

it would limit connectivity completely instead of simply slowing down the connection

33
Q

If the network changed from DHCP to static assignments, then

A

the workstations would not get an APIPA address and would not have connected to the network at a slower speed

34
Q

Clicking noises means

A

most likely a hard drive failure

35
Q

Whirring or grinding noise mean

A

most likely the cooling fan

36
Q

Double images or ghost printing occurs

A

Drum is the issue

37
Q

Zigbee

A

is an open-source wireless communication protocol used for home automation
2.4 GHz frequency

38
Q

192.168.1.254

A

IPv4

39
Q

00:AB:FA:B1:07:34

A

Mac Address

40
Q

::1

A

IPv6 address

41
Q

The computer continually crashing when using certain apps, the system will stop working and BSOD. What is the cause of the error

A

Failure or corruption of the memory

42
Q

Latency

A

time of delay between when a packet is sent and recieved

43
Q

Throttling

A

slowing or speeding of an internet service

44
Q

Refresh rate

A

describes how many times the image on the monitor changes per second

45
Q

Frame rate

A

the number of times the image in a video stream changes per second

46
Q

Resolution

A

the measure of the number of picture pixels

47
Q
A

CompTIA A+ Core 1 (1 decks)

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