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practice tests Flashcards

1
Q

throughput for Thunderbolt 3

A

40 Gps

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2
Q

throughput for SATA 3.0

A

6 Gbps

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3
Q

throughput for USB 3.0

A

5 Gps

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4
Q

throughput for 1000BASE-T

A

1 Gbps

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5
Q

throughput for FireWire 800

A

800 Mbps

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6
Q

throughput for 802.11g

A

54 Mbps

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7
Q

What is the port number for this protocol: HTTPS - HyperText Transfer Protocol Secure

A

tcp/ 443

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8
Q

What is the port number for this protocol: LDAP - Lightweight Directory Access Protocol

A

tcp/ 389

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9
Q

What is the port number for this protocol: DNS - Domain Name System

A

udp/ 53

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10
Q

What is the port number and for this protocol: IMAP- Internet Message Access Protocol

A

tcp/143

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11
Q

What is the port number for this protocol: SNMP- Simple Network Management Protocol

A

udp/ 161

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12
Q

What is the port number for this protocol: RDP- Remote Desktop Protocol

A

tcp/ 3389

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13
Q

What is the port number for this protocol: SSH- Secure Shell

A

tcp/ 22

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14
Q

Which protocol would be used for this action: Transfer files between macOS devices

A

AFP (Apple Filing Protocol) is used for copying, moving, deleting, and
other file services in macOS. AFP commonly operates over tcp/548.

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15
Q

Which protocol would be used for this action: Send email messages from a mobile device

A

SMTP (Simple Mail Transfer Protocol) is used to send messages from a
device, or to transfer email messages between email servers over tcp/25.

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16
Q

Which protocol would be used for this action: Gather statistics from network devices

A

SNMP (Simple Network Management Protocol) is used to monitor and
configure network devices over udp/161. Devices can send alerts (called
“traps”) to an SNMP console over udp/162.

17
Q

Which protocol would be used for this action: Automatically assign IP addresses

A

DHCP (Dynamic Host Configuration Protocol) is the primary protocol
commonly used to automate the configuration of IP addresses, subnet
masks, and other networking options. DHCP uses both udp/67 and
udp/68 for these auto-configuration tasks.

18
Q

Which protocol would be used for this action: Find Mac OS services by name

A

SLP (Service Location Protocol) is used to populate the list of available
devices on a macOS devices. SLP commonly uses tcp/427 and udp/427.

19
Q

Which protocol would be used for this action: Print from Windows to a network printer

A

CIFS (Common Internet File System) is also known as SMB (Server
Message Block), and it’s commonly used on Windows systems for file and
printer sharing over tcp/445.

20
Q

Which protocol would be used for this action: Encrypt a terminal connection

A

SSH (Secure Shell) is used to communicate to a terminal screen over an
encrypted channel using tcp/22.

21
Q

What technology fits this description: Services are available publicly on the Internet
and within a private network

A

Hybrid - A public cloud is available to everyone over the Internet, and a private cloud
exists within an organization’s own data center. A hybrid model combines both
of these into a mix of both public and private cloud components.

22
Q

What cloud technology fits this description: Individual services are allocated from a larger resource

A

Resource pooling - Cloud technologies allow a cloud service provider to create large pools of
resources and separate those pools into smaller virtualized groups as needed.
This allows the service provider to manage smaller and more powerful groups of
hardware devices and separate that hardware into different logical groups.

23
Q

What technology fits this description: Hardware is available as an on-demand resource

A

IaaS - IaaS (Infrastructure as a Service) is sometimes called Hardware as a Service
(HaaS). With IaaS, the service provider allocates hardware to be used in the
cloud, and it’s the responsibility of the customer to install operating systems,
applications, and data into the IaaS infrastructure.

24
Q

What technology fits this description: Services can scale up or down as needed

A

Rapid elasticity - Resource demands can change dramatically depending on the time of day,
the season of the year, or an advertising campaign. Rapid elasticity allows the
infrastructure to grow and shrink based on these changing demands.

25
Q

What network technology performs this action: Forward traffic over the network based on MAC address

A

Switch - A switch makes all forwarding decisions based on the destination MAC
address in the Ethernet frame

26
Q

What network technology performs this action: Communicate over wireless frequencies

A

Access Point - An access point provides a bridge between a wired Ethernet network and an
802.11 wireless network.

27
Q

What network technology performs this action: Control the flow of traffic through the network

A

Firewall - Although a switch or router can be configured with certain traffic control
features, the best selection from the available list is a network firewall.

28
Q

What network technology performs this action: Physically connect incoming and outgoing network cables

A

Patch panel - A patch panel is commonly used to terminate connections between network
runs.

29
Q

What network technology performs this action: regenerate a network signal

A

repeater - A repeater is used to regenerate a network signal, and it’s commonly used over
very long runs to extend the overall length of a connection.

30
Q

What network technology performs this action: make forwarding decisions based on the destination IP address

A

Router - Routers make forwarding decisions based on the destination IP address in the
IP header of a packet.

31
Q

What is the MOST likely diagnosis for this printer problem: Black vertical line runs down the
length of the page

A

Scratched photosensitive drum - The drum on a laser printer is a critical part of the printing process, and a
scratch around the drum will appear as a line down the entire length of the
printed page. On an inkjet printer, a clogged or dirty print head or cartridge
could also cause a vertical line.

32
Q

What is the MOST likely diagnosis for this printer problem: The output prints in the wrong color

A

Ink cartridge is low - An color inkjet printer commonly uses a combination of colors to create the
final color output. These colors are often referenced as CMYK (Cyan, Magenta,
Yellow, Key or black). If any of these base colors are out of balance with the
others, the final mix on the page will not appear with the correct coloring

33
Q

What is the MOST likely diagnosis for this printer problem: Toner smears and wipes off the paper

A

Fuser is not operational - On a laser printer, the fuser is responsible for applying heat and pressure to
melt the toner particles to the page. If the fuser is not operational, then the
toner will not be permanently bonded to the paper.

34
Q

What is the MOST likely diagnosis for this printer problem: Output shows non-readable
garbled characters

A

Incorrect page description language - It’s important that the printing device and the printer are communicating with
the same page description language (PCL). If the languages are configured
differently, the printed output can appear as garbled text and
graphics characters.

35
Q

What is the MOST likely diagnosis for this printer problem: A ghost image is printed on the
same page as the original

A

Drum not cleaning properly - The drum in a laser printer will rotate many times to print a single page. If the
cleaning process isn’t working properly, then a “ghost” image of the previous
page contents may appear on the final output.

Prof. Messer (2 decks)

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