Professor Messer Flashcards

1
Q

a graphics designer need to connect their macOS computer to a second monitor and an external storage drive. which of the following interfaces would provide this connectivity?
A. Lightning
B. DisplayPort
C. DVI-D
D. Thunderbolt

A

Thunderbolt
was created by Intel to connect external peripherals to a computer at high speeds

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2
Q

what cloud- based service provides hardware, but still requires the user to setup, configure, and manage the operating system and application?
A. SaaS
B. PaaS
C. IaaS
D. DaaS

A

IaaS
provides CPU, memory, network connection, and storage, and the customer installs and manages all of the software running on the infrastructure hardware

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3
Q

a network admin is using a laptop computer to configure a switch over a direct cable connection. which of the following would BEST describe this connectivity?
A. Bluetooth
B. Thunderbolt
C. Serial
D. Lightning

A

Serial

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4
Q

a manager in the accounting department is complaining of slow performance on her computer. initial troubleshooting shows low utilization of CPU and memory. a network speed test reports normal throughput to the local network devices. which of the following would be the BEST next troubleshooting step?
A. Boot to safe mode
B. Upgrade the BIOS
C. Replace the memory module
D. Perform a hard drive diagnostic

A

Perform a hard drive diagnostic

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5
Q

which of these devices sends traffic to every other port on the device?
A Router
B. Unmanaged switch
C. Cable modem
D. Hub

A

Hub

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6
Q

which of these wireless standards was the first to introduce 54 Mbit/sec throughput on the 2.4 Ghz band?
A. 802.11g
B. 802.11ac
C. 802.11n
D. 802.11b

A

802.11g

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7
Q

a user is reporting this message on their Windows computer taskbar icon “Limited or no connectivity” which of the following would be the next troubleshooting step?
A. Check the local IP address configuration
B. Restart the computer
C. Ping the default gateway
D. Check the switch VLAN configuration

A

Check the local IP address configuration

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8
Q

a company is installing a new communication link using SC interfaces. which of the following would BEST describe this connection?
A. Fiber optic
B. USB-C
C. 10BASE-T
D. M.2

A

Fiber optic
SC (subscriber connector) is a common fiber optic connection type

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9
Q

an application developer is designing an app which uses three servers running simultaneously as VMs on her desktop. an upgrade to the application will add three additional servers to the list of running VMs. which of these hardware resources will be MOST important for this upgrade?
A. Video adapter
B. Network connection
C. RAM
D. CPU

A

RAM

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10
Q

a company has experienced a significant increase in printing costs over the last few months. which of the following would provide the best way to track and manage these costs?
A. Audit logs
B. Print spooler uptime
C. Power usage monitor
D. Packet captures

A

Audit logs

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11
Q

an organization has recently implemented a browser based email system that requires no additional software on the user devices. which of the following would describe this type of application?
A. SaaS
B. IaaS
C. HaaS
D. PaaS

A

SaaS
is on-demand software. the client doesn’t maintain a local software installation, and the application support is managed by the service provider.

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12
Q

what type of power supply can operate across countries using different voltages?
A. High-voltage
B. Primary
C. Modular
D. Auto switching

A

Auto switching

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13
Q

a gaming enthusiast has upgraded his home computer from integrated graphics to a separate video adapter card. the computer operate as expected for web browsing and word processing applications. however, playing a game results in the system shutting down after a few minutes of operation. which of the following would be the MOST likely component causing this issue?
A. CPU
B. Power supply
C. RAM
D. SSD

A

Power supply

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14
Q

a company would like to advertise a list of email servers authorized to send messages on their behalf. which of the following would be the BEST way to provide this information?
A. APIPA
B. Proxy servers
C. UTM
D. SPF record

A

SPF record
sender policy framework is part of DNS server configuration, and it lists all servers authorized to send emails for a particular domain

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15
Q

users in the marketing department are reporting that one network printer is not working. there are many print jobs in the queue, but non of the jobs are printing. a test print from the printers front panel does not print any pages. what is the MOST likely reason for this printing issue?
A. Printer drivers need to be uploaded
B. Network is disconnected
C. Printer hardware has failed
D. Print spooler needs to be restarted

A

Printer hardware has failed
if the local test print isn’t working, then the printer itself has some type of of hardware failure

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16
Q

a member of the accounting department would like to work remotely while attending a conference in another city. which of these technologies would BEST provide this functionality?
A. VLAN
B. 802.11
C. VPN
D. PAN

A

VPN

17
Q

in which of the following situations would you be MOST likely to use a network tap?
A. Attach an RJ45 connector to the end of an ethernet cable
B. Capture packets from a network link
C. Test packet loss in a router interface
D. Locate a specific workstation connection on a punch-down block

A

Capture packets from a network link

18
Q

a digital graphics department has been using SAN to store their image files. the team now reports that all the files on the SAN are no longer accessible. which of the following should be the FIRST thing to check on the SAN?
A. RAID array status
B. CPU utilization
C. Input voltage
D. Cache hits

A

RAID array status

19
Q

a system admin needs to upgrade the hard drives in a RAID array. which of the following would be the BEST measurement of read and write times on the new hard drive?
A. S.M.A.R.T.
B. Jitter
C. IOPS
D. RPM

A

IOPS
input output operations per second is a measure of read and write performance