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Core 1 > Core 1 > Flashcards

Core 1 Flashcards

1
Q

A remote facility cannot utilize a wired internet connection for a short period. When relying on a wireless solution, the company uses a technology that must be provisioned with a motor so it can periodically realign with the array. Which internet access technology is in use?

A

Power Injector

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2
Q

Which well-known mailbox access protocols utilize mailbox servers to allow the user’s client email software to retrieve messages from the mailbox and what are their port numbers?

A

IMAP - 143 TCP, POP3 -110 TCP

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3
Q

A basic firewall configuration has rules, referred to as network access control lists (ACLs). What are the basic properties needed for a firewall ACL to implement the desired security features configured?

A

-Block / allow property
- Source and destination, Network / devices
-Protocol

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4
Q

What problem does a screensaver help prevent?

A

Display burn in

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5
Q

A user is trying to mirror a computer to a large display monitor for a presentation. The computer is on and the display reads no input on the screen. An HDMI cable connects the two devices. What would be the next thing to check?

A

Change the display source

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6
Q

What device interfaces between telephone lines and local networking devices providing routing and internet connections?

A

DSL modem

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7
Q

A user replaces an older laptop that has a thin film transistor (TFT) display that uses crystals that rotate. What TFT technology does the display use?

A

IPS

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8
Q

What has rules that list source and destination Network addresses protocol types and whether to allow block traffic matching the rule?

A

Firewall

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9
Q

What has internal software for more advanced functionality?

A

A managed switch

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10
Q

Which protocol allows clients to upload and download files from a network server and uploads files to websites?

A

FTP

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11
Q

How will the images appear if the output resolution does not match the display devices native resolution?

A

fuzzy

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12
Q

What will cause the image to dim?

A

Failed back light

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13
Q

How can you reactivate pixels on a digital display panel?

A

Software

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14
Q

Which display uses crystals that tilt rather than twist or rotate and supports a wide color gamut in the best contrast ratio performance?

A

VA

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15
Q

Which display uses crystals that twist or untwist in response to the voltage level and is the oldest TFT technology?

A

TN

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16
Q

What provides air flow that helps to dissipate Heat to the power supply and chassis exhaust points?

A

Fan

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17
Q

What is a block of copper or aluminum with fins and creates a cooling effect by convection?

A

Heat sink

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18
Q

What glues the heat sink to the surface of the chip to ensure the best transfer of heat by eliminating small air gaps?

A

Thermal paste

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19
Q

Which device depends on local routing for an internet connection?

A

Access point

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20
Q

What device converts between Optical and electrical signaling to facilitate full fiber internet connection types?

A

ONT

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21
Q

What tool would you use to set up an ensure the radio signals are correct and that all areas receive the most efficient signal possible?

A

Wi-Fi analyzer

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22
Q

What tool attaches to each end of a cable and tests the permanent link?

A

Cable tester

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23
Q

What tool to text the signal and follows the keyboard over ceilings and through ducks or identifies it from the rest of the bundle?

A

Toner probe

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24
Q

What tool tests the Nic or switch port, but does not test any Wireless metric?

A

Loopback plug

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25
Q

Which display does not require a separate backlight?

A

OLED

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26
Q

What uses real-time without degrading services and is an important benefit of migrating data to the cloud?

A

Rapid elasticity

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27
Q

What is peruse billing for resources consumed by the cloud making it cheaper and more expensive for an organization?

A

Metered utilization

28
Q

What is important when you have an an unexpected outage when you have clients relying on your services?

A

High availability

29
Q

Which protocol transfers email messages across a network and uses TCP Port 25?

A

SMTP

30
Q

Which protocol and port makes files available for download across the network, has two ports, and uses TCP?

A

FTP 21 - control connection and port 20 - data connection

31
Q

Which Port and protocol uses an unsecured connection to the command line interface of a remote server?

A

Telnet TCP Port 23

32
Q

Which protocol makes a secure connection to the command line interface of a remote server?

A

SSH TCP Port 22

33
Q

What utilization test software applications under different os’s and resource constraints and is important to ensure the application is compatible across several different environments?

A

Cross-platform

34
Q

What’s important to consider when setting up a network for virtualized systems to use, and will be overwhelmed and dysfunctional if not implied?

A

Resources

35
Q

What part of a 3D printer is either 1.75 mm or 3 mm and requires that the extruder be heated to the appropriate temperature to pull as much of the old part out as possible and finally push the new part through?

A

Filament

36
Q

What uses liquid plastic resin or photo polymer to create cured objects using an UltraViolet laser?

A

Stereolithography

37
Q

What is one of the main components of a fused deposition model 3D printer?

A

Print bed

38
Q

What enables the precise positioning of the extruder in a 3D printer?

A

Gears

39
Q

What two interfaces does a Wireless printer have?

A

Bluetooth and Wi-Fi

40
Q

What port is used with an Ethernet network adapter to connect a printer to a computer?

A

RJ45

41
Q

Should you use an unlicensed or licensed connection connection if you want to have very minimal interference and long range or short range to deliver wireless connectivity to a large rural area?

A

Licensed, long-range

42
Q

Which bands does Wi-Fi 6 work in, in an unlicensed spectrum?

A

2.4 and 5

43
Q

Which band does Wi-Fi 5 work in in an unlicensed Spectrum?

A

5

44
Q

What’s it mean when there is no LED status indicators on a drive?

A

Faulty disk

45
Q

What does a read/wright error indicate on an HDD?

A

Bad sectors

46
Q

Which test utility should you run if you want to locate bad sectors on an HDD?

A

chkdsk (check disk)

47
Q

What problem does three long beeps indicate during a POST?

A

Keyboard issue

48
Q

What a boot device not found error message indicate?

A

Boot sector issue

49
Q

What’s it called when a service experience is very little downtime?

A

High availability

50
Q

What refers to the system’s ability to handle changes to demand in real time without loss of service or performance?

A

Rapid elasticity

51
Q

What logical network segment solution should a company Implement to keep data separate from the rest of the companies internal network?

A

VLAN

52
Q

What enables remote hosts to connect to the land without being physically installed at the site?

A

VPN

53
Q

What is it called when DHCP has a range of IP addresses in the same subnet that its server can lease to clients?

A

DHCP scope

54
Q

What do you need to manually configure a Microsoft Exchange account?

A

Host address and layer of security

55
Q

Which area network uses radios in antennas for data transmission and reception?

A

WLAN

56
Q

How many gigabytes is an STP?

A

10G

57
Q

Which cable, STP or UTP, is more reliable and why?

A

STP because it provides extra protection against interference

58
Q

How many conductors does a coaxial cable use?

A

Two

59
Q

How does the printer determine print density and color balance?

A

Calibration

60
Q

What is needed if you need to replace the feed roller, transfer roller, and fuser unit in a printer?

A

Maintenance kit

61
Q

What carries out the same negative charge polarity as the drum?

A

Toner

62
Q

What is very close to the photosensitive drum?

A

Developer roller

63
Q

Which protocol scan generates as a file on a shared network folder and each user must have permission to write to the share?

A

SMB

64
Q

What protocol is used when a scan generates as a file attachment to an email message?

A

SMTP

65
Q

Name the infrastructure service that you need if you want to use existing applications instead of paying for a new app to be developed?

A

Software as a service

66
Q

What type of service is used if you need a service provider for infrastructure and software?

A

Platform as a service

67
Q

What service do you need if you need infrastructure?

A

Core 1 (2 decks)

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