A+ Core 1 Flashcards
You are configuring the mail app on an iPhone to use an email address. What configuration information do you need to enter to establish connectivity?
When configuring a mobile email client to access a
commercial email provider, you typically just need your
username and password to establish connectivity. Examples
include Google, Yahoo, Outlook.com, and iCloud.
Which type of smartphone display has fewer layers,
providing more flexibility, a better viewing angle, and excellent color as compared to other technologies?
Many newer smartphones are boasting OLED displays for
their light weight, flexibility, color depth, and wider viewing
angle. IPS is a popular type of LCD (Liquid Crystal Display)
that requires backlighting to display the image. TN was the
LCD technology was developed first. It uses less power and has a
limited viewing angle, but it supports very fast refresh rates.
LEDs can be used as the backlight for LCD systems. OLED
displays don’t need a backlight because they are carbon-based
material can emit light and color.
In which scenario would you use the Fn key and the F10 key?
To turn the screen brightness up
You are purchasing a mobile device that allows you to use multi-finger gestures to interact with the device. What type of touchscreen technology does this device most likely use?
Capacitive
You are using a public Wi-Fi hotspot and believe that
someone is trying to hack into your laptop. Which laptop feature should you use to immediately turn off all wireless connections?
Airplane mode
You have been asked to purchase a new camera for the
company photographer. Some of the cameras are marketed as “smart” cameras. What key feature does this likely mean the camera includes?
Wi-Fi
Your friend’s iPhone 13 will no longer charge. They have tried replacing the charging block and cable with compatible ones and tested the wall outlet. What should be done next?
Take the phone to a repair shop
Your customer brought you a laptop with an internal battery that will no longer charge. You have told them that replacing the battery will be no problem at all. Which of the following will you need to do first?
Disconnect the external power
A coworker is having a problem with their laptop and has asked you to fix it. When an external keyboard is plugged in, the laptop works just fine, but without it strange characters appear on the screen when typing. Which of the following are likely causes? (Choose two.)
A. The driver is corrupted and needs to be updated/replaced.
B. The ribbon cable is partially disconnected and needs to be
reseated.
You’re working as the IT support person at an accounting
firm. One of the accountants dropped their keyboard, and the number 5 key is no longer there. This is a critical problem for an accountant. What is the most cost-effective way to get them up and running again?
Replace the missing key
Your boss has asked you to maximize the RAM in their laptop computer. You check the specifications and discover that the maximum system RAM is 32 GB of DDR4 RAM. The laptop currently has 16 GB onboard RAM and one empty slot. Which of the following RAM modules will you purchase?
One 16 GB SODIMM
A friend is trying to install an update on their iPod, but they’re receiving a message about insufficient space. They want to know if you can upgrade their storage. What will you tell them?
Storage can’t be upgraded, but you may be able to offload
some apps you no longer use.
You need to replace a failed SATA hard drive on a 10-year-old laptop. The user has asked that the new drive be as fast as possible, regardless of disk space or cost. What type of drive should you install?
SSD
You need to replace a failed hard drive in a user’s laptop, and it’s a model you are unfamiliar with. You look at the bottom of the laptop and see no obvious entrance points. Which component will you most likely need to remove to access the hard drive bay?
Keyboard
You are on the phone talking to a technician who is trying to upgrade a laptop. The technician is having trouble
identifying the Mini PCIe card. How wide should you tell the technician that the card is?
30 mm
Which mobile connection type allows you to share your cellular Internet connection with a Wi-Fi enabled device?
Hotspot
Your friend wants to be able to use their phone to pay for purchases at a popular coffee shop. They noticed that the phone needs to be about 4′′ from the coffee shop’s reader. What radio wave communication type do you need to configure for your friend?
NFC
You’re working from a home office and need to be able to type on your keyboard while talking with clients, so you purchase a wireless headset. What wireless technology will
you need to enable on your laptop to ensure that the headset and laptop can communicate?
Bluetooth
You are wearing your smart watch, which allows you to make payments like a credit card. What type of connection technology does this service use?
NFC
You’re upgrading the Wi-Fi card in a manager’s laptop and
notice that the antenna cable is frayed, so you need to replace that too. What will you likely need to do to replace the antenna?
Open the display to replace the cable.
Your boss has asked you to make sure that each of the
company’s laptops has a biometric scanner as an extra
measure of security. Which of the following are biometric devices that are commonly found and can be configured on laptops? (Choose two.)
B. Face ID
C. Fingerprint reader
Your company is producing posters for an upcoming public
relations campaign. The project leader wants to embed information into an NFC Type 4 tag in the poster. How much information can this tag hold?
32 KB
Your customer has an iPhone 8 and wants to read and write NFC tags with it. What advice will you give them? (Choose two.)
With iOS 13 or better on their device, they’ll be able to
read and write NFC tags using a third-party app.
iPhone 12 and iPhone 13 can read NFC tags simply by
holding the phone over the tag.
You’ve been asked by the company president what can be done with NFC in addition to paying for coffee. What will you tell them? (Choose three.)
A. Securely share data with someone you’re having lunch
with.
C. Transfer files, photos, and videos.
D. Add information or URLs to business cards, making it
easier for customers to learn about your products or
services.
You are investigating new laptops for your company. You
want the laptop displays to have a wide viewing angle. Which technology standard is best suited for your needs?
In-Plane Switching (IPS),
Which type of LCD has the best contrast, meaning the darkest black and lightest white?
OLED
Of the laptop LCD technologies, which consumes the least amount of power?
Twisted Nematic
(TN)
What type of display uses organic materials that themselves light up so that no backlight is needed, meaning true black and greater contrasts can be achieved?
OLED
You have recently purchased a laptop computer with a
touchscreen. It allows you to draw images on the screen and save them on the computer. Which device is responsible for converting the input into the image that you see and save?
Digitizer
Which two components of a laptop or other mobile device
are the most useful when making a videoconference call? (Choose two.)
Webcam
Inverter
Of the laptop components listed, which one is least likely to be built into the display?
Speakers
Which mobile device component can take input from a stylus or your finger, depending on the sensor type, and convert it into an image on the laptop or other mobile device?
Digitizer
What is this device, which can be found inside an iPhone 10
along the bottom, connected with a small ribbon cable?
Wi-Fi antenna
In which scenario would you use the Fn key and the F4 key shown here?
To change the video output to an external display
Which type of mobile device is known for using electrophoretic ink?
E-reader
Which display component is capable of discharging energy and causing severe injuries to technicians?
Inverter
- Which of the following is not a type of LCD?
OLED
What types of networking will smart cameras often have built into them? (Choose two.)
Bluetooth
Wi-Fi
What component or characteristic on most mobile phones has its ability measured in megapixels?
Camera
What three components of a mobile display are often connected in such a way that if one fails, you must replace the other two with it? (Choose three.)
Glass cover
LCD
Digitizer
An artist in your company’s marketing department just received the new drawing pad that they ordered. What might you need to do to configure it? (Choose three.)
Plug the device into an appropriate port, likely USB.
Enable Windows Ink or other software settings.
Calibrate the device.
A coworker just started working with their new laptop yesterday, and today they’re complaining that the trackpad won’t work. You suspect that they accidentally turned it off. What key or key combination based on the graphic will remedy the problem?
Fn and F9
One of your coworkers has purchased an external Bluetooth trackpad to use with their tablet. They’ve turned to you, the company IT person, to install and configure it for them. What actions will you need to take? (Choose two.)
Put the device in pairing mode and open Bluetooth settings
on the tablet, then tap the trackpad.
Go to Settings to configure speed and scrolling features.
What type of connection are you using if you use a USB cable to connect your laptop to your cell phone in order to use the cellular wireless connection from the laptop?
Tethering
You often work remotely, in your favorite coffee shop. What
device can you use to physically protect your laptop from theft if you step away from the table for a minute?
Cable lock
The company president misplaced their charging cable for
their iPhone 13. You tell them it’s no problem, and hand them a new one. What type of connector does this iPhone use for charging?
Lightning
What type of mobile device connector is shown here?
Lightning
Your significant other just purchased a new car and wants you to configure their cell phone to work through the car using voice commands. You must initiate pairing on the
phone and choose to search for pairing devices on the car. What protocol is being used by the car and the device?
Bluetooth
A laptop user wants to have a full-sized display and keyboard, as well as an external hard drive, and speakers available to them at their desk. Which accessory can they purchase to avoid plugging each of these devices separately into their laptop every time they return to the desk? (Choose two.)
Port replicator
Docking station
A user needs ports for external devices in addition to what their laptop is capable of connecting. The user would like these devices to have connectivity with each other whether or not the laptop is there. Which of the following will provide that option?
Port replicator
Which laptop expansion port technology was developed by
Apple and Intel and supports a wide variety of peripheral devices?
Thunderbolt
You’re upgrading a user’s laptop from 802.11n to 802.11ac. What port will you most likely use inside the laptop?
Mini PCIe
You’ve been handed a device to install. The cable looks like the one here. What type of connector does this device use?
miniUSB
What port looks identical to a Thunderbolt 3 connector but will not charge a connected device as quickly?
USB-C
You’ve been handed a device to install. The cable looks like the one here. What type of connector does this device use?
microUSB
You’re the IT manager for a manufacturing company. One of the corporate executives is questioning why you’re buying serial instead of parallel devices. You explain that serial transmits only one bit of information at a time, but it does so very fast compared to parallel. Which of the following will you tell them is not a serial connection?
Centronics
You’re configuring a new laptop for a user. What devices can
you plug into the port shown here? (Choose two.)
Speaker
B. Headphones
A technician has a failed Lenovo laptop and suspects the motherboard is bad. They have several other laptops available from which they can harvest parts. Which of the following statements is most likely true regarding the replacement motherboard that is selected?
Only a motherboard from that same model of Lenovo
laptop will work.
What type of connector is used on Android smartphones?
(Choose two.)
USB-C
USB Micro-B
You will be traveling to another country for work and will have a 10-hour airplane flight. You need to work on your laptop while on the flight, but your battery won’t last that long. What should you buy to allow you to use the auxiliary power outlets on the airplane?
DC adapter
The AC adapter for your laptop is not working properly, and you are searching for a replacement. Which two factors should be most important when selecting a new AC adapter? (Choose two.)
Polarity
Same wattage as the original
How do modern docking stations connect to laptops? (Choose two.)
USB-C
Thunderbolt 3 or 4
You have enabled the GPS service in your tablet. What is the minimum number of GPS satellites your tablet needs to be in contact with to determine its location?
Three
What is the name of the OS used by the Apple Watch, which
was designed specifically for the watch?
watchOS
A technician needs to replace a failed laptop hard drive. Which of the following form factors could it use?
2.5′′
What type of wearable technology device is specifically designed to track a user’s movements and heart rate and may include features such as GPS?
Fitness monitor
You want to play video games on your tablet computer.
Which accessory would you purchase if you wanted to play the game much like you would on a gaming console?
Gamepad
Your new laptop has 4 GB system RAM and an integrated video card. The default setting specifies 512 MB of video memory. How much RAM is available for the processor to use?
3.5 GB.
Oculus, Samsung, and HTC are manufacturers of what specific type of wearable technology devices?
VR/AR headsets
Tablet computers feature touchscreens that are approximately what size?
Between 7′′ and 12′′
What type of connectors are the two shown in the center here?
PCIe x 1
Which type of network connection is least likely to be found on a tablet computer?
RJ-45
What type of device would use a Lightning connector to charge and transfer data?
Apple iPhone
You are upgrading a laptop with a Mini PCIe card. What type of connector does Mini PCIe use?
52-pin
What is the likely type of Wi-Fi antenna connector you will find as an external connector on a laptop?
SMA-female-RP
A warehouse manager at a factory is required to supervise productivity while walking around and taking notes. They find their laptop awkward to type on while walking but do not want to use two devices. What would you recommend they do?
Get a laptop with a rotating or removable screen.
After enabling your device for communication using the IEEE 802.15.1 standard, what is the next step?
Enable pairing.
You’ve enabled Bluetooth on your new headset and your laptop and enabled pairing on both. They have discovered each other, so what is the typical next step?
Entering the Bluetooth PIN code
You’re configuring private email on a coworker’s cell phone.
They want to make sure all of their mail will be only on their phone. Which mail protocol keeps all emails stored on a single device and can only be accessed from one device?
POP3
You’re configuring company email on a coworker’s phone.
The company needs to keep a copy of every email on their server, even after it’s accessed by the user. Which mail protocol keeps all emails stored on the server, allowing messages to be synchronized between multiple devices?
IMAP
What service is built into Apple-developed devices and permits users and subscribers to store documents, media, and contact information off their devices?
iCloud
What is the hosted messaging version of Microsoft’s Exchange mail server that saves customer’s email off-site?
Exchange Online
What configuration settings are commonly used when setting up email from an online provider on a device?
Username and password
What type of update is done to mobile devices over the air?
PRI and PRL
Which number that is a part of the GSM system is hard-coded into the phone and identifies your physical phone hardware to the cellular tower?
IMEI
Which unique mobile number identifies you as a user and is coded into the SIM card if you’re on a GSM network, or otherwise linked to your account, allowing you to transition from one phone to another?
IMSI
A user is traveling to a country that employs content blocking technology on the cellular network. What would you suggest setting up to bypass the content blocking as well as keep the user’s mobile browsing more private?
VPN
What best practice can save someone from losing the data such as calendar entries and contacts on their mobile device if the device is lost?
Synchronization
A user wants a list of favorite websites to be readily available between multiple devices, including their mobile device. What is the best option?
Synchronize bookmarks
When two parents wish to share appointment dates and times between devices, what is their best option?
Synchronizing calendars
What Windows app is used to synchronize data between a user’s mobile devices like smartphones and their desktop computers?
ActiveSync
What technology lets you minimize how often a user must log in for multiple services?
SSO
You’re installing Bluetooth speakers in a conference room and just entered the pin to connect the two devices. What is your next step?
Test connectivity
The owner of a company that solely provides transportation from the airport to various hotels wants to employ a software that will tell them where every vehicle is at all times. All of the vehicles use satellite-based navigation systems. What technology is most likely being used to track where they are?
Global Positioning System (GPS)
You’re going hiking this weekend in unfamiliar territory and have installed an application on your phone that shows you where you are on the map in relation to the trails and surrounding areas. What two types of location technology might this app use? (Choose two.)
GPS
RFID
Your coworker wants to be able to use maps with their phone but is unhappy that other applications are also tracking their physical location. They ask for your help. Which of the following is not true?
If location services are turned off for one purpose, they are turned off for all services.
You’re at home binging on a popular Internet movie service and suddenly notice that the spinning wheel is showing up often, taking more time to download the movie than normal. What is likely the problem?
You have reached your data cap
The executives at your company are concerned about employees using their personal devices for work. They worry that someone may leave and take proprietary information with them. You calm their fears by telling them that there are settings in place that protect company data that is accessed by employees. What are those settings called? (Choose two.)
MDM
MAM
Which of the following is not a type of two-factor authentication?
Needing a username and password
Which cellular communication technology is known as Long- Term Evolution (LTE)?
4G
Which of the following display types refers not to how the liquid crystals are arranged, but rather to the type of backlight being used?
LED
You are responsible for replacement parts within your company’s IT department. Because of the critical nature of your business, you need to have replacement parts on hand in the event of a hardware failure. Your company uses four different types of laptops, two HP and two Dell. How many different types of motherboards do you most likely need to stock?
Four
Tech support has recommended that you update the OS on your iPad to resolve a problem you’re having with it. What OS will you be updating?
iPadOS
Your client is frustrated that their Bluetooth earpiece that was working yesterday is no longer working, and they’ve asked for your help. What is the likely source of the problem?
Bluetooth connectivity was lost.
The Wi-Fi connection between your laptop and network has failed. Upon examining Device Manager you notice that the network card is not listed. You’ve reseated the card and it still isn’t found in Device Manager, so you’ve decided to replace it. Which of the following card types will you likely need to purchase?
M.2 Wi-Fi card
A technician needs to replace a hard drive that failed in their new laptop. What type of drive will they likely need? (Choose
two.)
M.2
mSATA
You are installing a fiber-optic cable between two buildings. To install the cable, you must run it through a conduit between the buildings, and access to the conduit is not easy. Before you run the cable, you want to ensure that it’s working properly. Which tool should you use?
Cable tester
Which TCP/IP protocol, designed to download email, allows for multiple clients to be simultaneously connected to the same mailbox?
IMAP
You are using your laptop on the company network. In your web browser, you type and press Enter.
www.google.com The computer will not find Google. You open the browser on your phone, and using your cellular connection, you can open Google without a problem. Your laptop finds internal servers and can print without any issues. What is the most likely reason you can’t open Google?
DNS server problem
Which one of the following TCP/IP protocols was designed as a replacement for Telnet?
SSH
Which of the following network connectivity devices operates at Layer 2 of the OSI model?
Switch
Which of the following TCP/IP protocols is connection-oriented and attempts to guarantee packet delivery?
TCP
Which TCP/IP protocol allows a user to log into a remote computer and manage files as if they were logged in locally?
RDP
Which Wi-Fi standard is the fastest, operating in both the 2.4 and 5 GHz frequencies?
802.11ax
Bob has a device that operates at 5 GHz. He is unable to connect his device to a LAN that he hasn’t accessed before, although he has verified that he has the correct password. What type of network might pose this problem?
802.11g
Which TCP/IP protocol is used to provide shared access to files and printers on the network?
SMB
What port does the Telnet protocol use?
23
You have just installed a wireless 802.11ac network for a client. The IT manager is concerned about competitors intercepting the wireless signal from outside the building. Which tool is designed to test how far your wireless signal travels?
Wi-Fi analyzer
Some of your network users are concerned about submitting confidential information to an online website. What should you tell them?
If the website address starts with HTTPS:// , it should be OK to submit confidential information to a trusted site.
Which TCP/IP Internet layer protocol is responsible for delivering error messages if communication between two computers fails?
ICMP
Which type of IPv6 address identifies a single node on the network?
Unicast
What type of network covers large geographical areas and often supports thousands of users, often using lines owned by other entities?
WAN
Which TCP/IP protocol, developed by Microsoft, uses port 3389 to connect to a remote computer?
RDP
What port does the SSH protocol use?
22
Which of the following IP addresses is not routable on the Internet?
10.1.1.1
Which network connectivity device does not forward broadcast messages, thereby creating multiple broadcast domains?
Router
What type of address does a router use to get data to its destination?
IP
You have a desktop computer that is behaving erratically on the network. The wired connection will often disconnect without warning. Which tool should you use to troubleshoot the network adapter?
Loopback plug
Your company just expanded and is leasing additional space in an adjacent office building. You need to extend the network to the new building. Fortunately, there is a conduit between the two. You estimate that the cable you need to run will be about 300 meters long. What type of cable should you use?
multimode fiber (MMF)
You want to ensure that client computers can download email from external email servers regardless of the protocol their email client uses. Which ports do you open on the firewall to enable this? (Choose two.)
110
143
You are installing network cabling in a highly secure facility. The cables need to be immune to electronic eavesdropping. What type of cable should you use?
Fiber-optic
Which networking device is capable of reading IP addresses and forwarding packets based on the destination IP address?
Router
Which network device is designed to be a security guard, blocking malicious data from entering your network?
Firewall
You are manually configuring TCP/IP hosts on the network. What configuration parameter specifies the internal address of the router that enables Internet access?
Default gateway
Which of the following devices will be found in a telecommunications room and provide a means to congregate horizontal wiring, terminating each run in a female port?
Patch panel
What type of network is most commonly associated with Bluetooth devices such as wireless keyboards, mice, and headphones, and covers a small area?
Personal Area Network (PAN)
When troubleshooting a network connectivity issue, you discover that the local computer has an IPv4 address of 169.254.2.2. What do you immediately know about this local computer?
It can’t find a DHCP server.
Which of the following IPv6 addresses is automatically assigned by the host when it boots and is only usable on the broadcast domain that it exists in?
FE80::/10
You need to configure a wireless router for an office network. The office manager wants new devices to be able to automatically join the network and announce their presence to other networked devices. Which service should you enable to allow this?
Universal Plug and Play (UPnP)
You are troubleshooting a computer with an IPv6 address that is in the FE80::/10 range. Which of the following statements are true? (Choose two.)
The computer will not be able to get on the Internet using
that IP address.
The computer is configured with a link-local unicast
address.
You have set up your web server to function as an FTP server as well. Users on the Internet complain that they are not able to access the server using FTP clients. What port should they be trying to access the server on?
21
Which TCP/IP protocol allows you to access data such as employee phone numbers and email addresses that are stored within an information directory?
Lightweight Directory Access Protocol (LDAP)
What port is associated with the LDAP protocol?
LDAP uses port 389
You are configuring network hosts with static IP addresses. You have chosen to use a Class B network address. What is the default subnet mask that you should configure on the hosts?
255.255.0.0
You are installing a new network and working in a telecommunications room. You need to attach several network cables to a 110 block. Which tool should you use to perform this task?
Punchdown tool
Which of the following Internet connection types offers the fastest download speeds?
Fiber-optic
Which of the following are public IPv4 addresses? (Choose two.)
69.252.80.71
144.160.155.40
Which TCP/IP protocol uses port 445?
Server Message Block (SMB)
What rendition of SMB was used by Windows servers and NAS servers but is no longer often used?
Common Internet File System (CIFS)
For IPv6, which of the following statements is true? (Choose two.)
Each IPv6 interface is required to have a link-local address.
IPv6 does not use broadcasts
Which network connectivity device is seldom used in modern networks, except to extend a network?
Hub
There is a TCP/IP protocol that should only be used locally because it has virtually no security. It may be used as a part of a preboot execution environment (PXE) or with thin clients booting from a network drive. It uses very little memory and is good for transferring boot files or configuration data between computers on a LAN, and it is connectionless. Which file transfer protocol is this?
Trivial File Transfer Protocol (TFTP)
Which of the following IPv6 addresses is equivalent to 127.0.0.1 in IPv4?
::1
You are asked to perform consulting work for a medium-sized company that is having network connectivity issues. When you examine the patch panel, you notice that none of the dozens of UTP cables are labeled. Which tool can you use to identify which cable goes to which workstation?
Tone generator and probe
Which TCP/IP protocol is responsible for dynamically assigning IP addresses to client computers?
Dynamic Host Configuration Protocol (DHCP)
Which networking device has multiple ports, each of which is its own collision domain, and examines the header of the incoming packet to determine which port the packet gets sent to?
Switch
Which TCP/IP port will an email client use to push email to its email server?
Simple Mail Transfer Protocol (SMTP). SMTP uses port 25
A technician is going to set up a Wi-Fi network using standard omnidirectional antennae. Because of the building configuration, transmitting signals for the greatest distance is the technician’s primary criterion. Which standard should they choose?
802.11n
You are troubleshooting an intermittently failing Cat 6 network connection. You suspect that there is a short in the connection. Which tool can you use to determine this?
Cable tester
What marks the boundary of a IPv4 broadcast domain?
Hub
Which TCP/IP protocol gathers and manages network performance information using devices called agents?
Simple Network Management Protocol (SNMP)
Which Internet connection type, once popular for home use, offers asymmetrical download and upload speeds and is implemented over common phone lines?
Digital Subscriber Line (DSL)
You are installing an 802.11n Wi-Fi network with five wireless access points. The access points are set up so their ranges overlap each other. To avoid communication issues, what principle should you follow when configuring them?
Configure all access points to use nonoverlapping channels.
You need to configure email settings for use with IMAP. Which port will you be configuring?
port 143
Which of the following technologies will enable you to install networking devices that need power to function, in a location that has no power outlets?
Power over Ethernet (PoE)
You have been asked to install a Wi-Fi network in a building that is approximately 100 meters long and 25 meters wide. Because of cost considerations, you will be using 802.11ac. At a minimum, how many wireless access points will you need?
Three
What two tools will you need to connect an RJ45 connector to an appropriate cable? (Choose two.)
Crimper
Cable stripper
You are installing network cabling in a drop ceiling of an office space. The ceiling area is used to circulate breathable air. What type of cable must you install?
Plenum
You need to install a wireless access point in a drop ceiling where there is no access to a power source. Which technology will allow you to get power to that device?
Power over Ethernet (PoE)
Which of the following IP addresses is not a private address and therefore is routable on the Internet?
172.168.38.155
You are configuring a wireless 802.11ax router. The office manager insists that you configure the router such that traffic from her computer receives higher priority on the network than other users’ traffic. Which setting do you need to configure to enable this?
Quality of Service (QoS),
If you are connecting to a website that encrypts its connection using TLS, what port does that traffic travel on?
HTTPS uses port 443
Your network is currently running a mix of 802.11b and 802.11g devices. At the end of the year, you have extra budget to upgrade some, but not all, of the wireless infrastructure. You want to upgrade to the newest technology possible but still maintain backward compatibility. Which standard should you choose?
802.11ax
What type of network spans multiple buildings or offices, possibly even crossing roads, but is confined to a relatively small geographical area?
metropolitan area networks (MANs)
Which of the following shorthand notations corresponds to the CIDR subnet mask 255.255.224.0?
/19
You are configuring hosts on a network running IPv4. Which elements are required for the computer to connect to the network?
IP address and subnet mask
You work at a tech support company and a customer called reporting that they received an error, something about a duplicate IP address. Why are they getting this message? (Choose two.)
All hosts on a network must have a unique IP address.
A PC is manually configured with an IP that is in the DHCP
scope.
You’re setting up a network for a customer. The network uses a DHCP server, but the customer needs an IP address for their print server that does not change. What are two possible solutions? (Choose two.)
Manually configure the print server to have a static IP address.
Configure a reserved IP address on the DHCP server for the print server.
Which obsolete Wi-Fi encryption standard uses a static key, which is commonly 10, 26, or 58 characters long?
Wired Equivalent Privacy (WEP)
You’ve been asked to set up a device that will be monitored using an SNMP agent and manager. What port will the SNMP manager use when polling the agent?
UDP 161
Because of a recent security breach, your IT team shut down several ports on the external firewall. Now, users can’t get to websites by using their URLs, but they can get there by using IP addresses. What port(s) does the IT team need to open back up to enable Internet access via URLs?
DNS uses port 53
All your network hosts are configured to use DHCP. Which IP address would indicate that a host has been unable to locate a DHCP server?
APIPA addresses are in the 169.254.0.0/16
You have reason to believe that several network users are actively browsing prohibited content on unsecured sites on the Internet. Which port can you disable on the firewall to immediately stop access to these websites?
on port 80, which is the port that Hypertext Transfer Protocol (HTTP)
Which TCP/IP protocol is designed to help resolve hostnames to IP addresses?
Domain Name System (DNS)
You need to install an Internet connection for a forest ranger outlook tower, located far away from electrical lines. Which option would be best for broadband Internet access?
Satellite
Your customer will be moving their small office to a remote mountain village where there is no cable Internet access. They have heard that there is a wireless option available in the area that is faster than satellite but that requires an antenna and line-of-sight to a tower. What option have they heard about?
Wireless Internet Service Providers (WISPs)
Which TCP/IP host-to-host protocol makes its best effort to deliver data but does not guarantee it?
User Datagram Protocol (UDP).
What type of network is typically defined as being contained within a single office or building?
local area network (LAN)
You are installing a wireless network for a small company. The management wants to have 1 Gbps or better wireless transmission rates. Which of the following standards will allow you to provide this? (Choose two.)
802.11ac
Which of these standards operate in both the 2.4 GHz and 5 GHz frequencies? (Choose two.)
802.11ax
802.11n
What legacy network protocol allows NetBIOS-dependent computer applications to communicate over TCP/IP?
NetBIOS over TCP/IP (NetBT)
Which of the following features does not require a managed network switch?
Direct packets out the proper port
The senior network administrator struggles to configure company network devices spanning several cities. It’s a challenge because they are required to be on the premises for the network infrastructure of each building. What would be a cost-effective solution?
Employ a cloud-based network controller.
What port(s) does DHCP use?
DHCP uses ports 67/68
What is the maximum distance allowed between a power over the Ethernet injector and the Ethernet device running on a 1000BaseT network?
100 meters
Which of the following protocols uses ports 137 and 139?
NetBT is NetBIOS over TCP/IP
When setting up a small office, home office (SOHO) network, how do the end-user devices know what IP address they need to use to connect with the network?
The NIC is set with a static address or DHCP-served.
You’ve been asked to set up a wireless network for an SOHO that will only allow five specific devices to connect. How do you accomplish this?
Configure MAC address filtering
What is the most likely way for a homeowner’s IoT devices to connect to their wireless network?
Dynamic Host Configuration Protocol (DHCP)
What type of communication technology is being used at a fast-food restaurant when a customer places their phone next to a device to pay for their purchase?
Near-field communication (NFC)
What communication technology allows for low-power, passive reading of a small tag or patch on an object that may be a few feet to dozens of feet away?
Radio-frequency identification (RFID)
What type of server provides Internet access to company-provided information such as how to contact a company, products or services for sale, and other information?
Web server
A friend is showing you how they can control their thermostat at home from their cell phone while at work. What type of device do they have at home?
Internet of Things (IoT)
What server would function as a central repository of documents and provide network-shared file storage for internal users?
File server
You work as a network administrator for a school district. The district is required to provide access to the Internet for students but also required to protect the network and the students from malicious network traffic and inappropriate websites. What type of server do you need to configure?
Proxy server
What type of server can host files for easy access and downloading, similar to how a web server serves web pages?
File Transfer Protocol (FTP)
You’re a network administrator and just added a device to your network that allows multiple users to access several printers. What have you attached to the network?
Print server
What server is used to resolve domain names to IP addresses to facilitate web browsing or locating a directory resource on the network?
Domain Name System (DNS) server
What server is accessed each time it’s necessary to challenge and validate a user’s credentials in order for the user to access a network resource?
Authentication server
What service can collect and journal all the system-generated messages produced by servers and network devices?
Syslog server
You’re configuring your phone to download and upload email. What type of server are you configuring your phone to use?
Mail server
Which of the following are connection-oriented protocols? (Choose two.)
HTTPS
SSH
A company wanting to monitor network traffic or host system behavior to identify suspect activity will install what type of service?
Intrusion detection system (IDS)
What is the primary difference between an IDS and an IPS?
IPS will actively react to suspect activity
Managing security on your growing network has become difficult, so you ask your peers what they are doing to manage their networks. They recommend a device that will allow you to manage your security in one place. What have they recommended?
Unified Threat Management (UTM)
A switch is overheating, and the SNMP agent is sending an SNMP trap to an SNMP manager. Which of the following are true? (Choose two.)
It is a managed switch.
It is communicating on port 162
Your cousin is a nature photographer, traveling the country and living in their Class A motorhome. Much of the time their motorhome is parked in a national park, but seldom is Wi-Fi available. Your cousin uploads photos from their camera to a laptop, modifies them, and needs to upload them to their publisher, various magazines, and their website on a regular basis. What is a viable networking option for your cousin?
Cellular
You are a network administrator. Currently, there is no wireless access to the business network, but the company is purchasing tablets so that employees can take their work with them as they move around the facility. What device will you install so that employees will be able to connect to the wired network with wireless devices?
add a wireless access point (WAP),
Last weekend you installed and booted several more computers to be ready for Monday morning. Later Monday morning you hear from employees as they come in that they cannot log in. Their desktops don’t seem to want to connect. You investigate and find that each faulty workstation has a
169.254.x.x IP address. What might you look at next?
DHCP scope
What network segmentation technique reduces broadcast domains and provides a layer of security between users on the same network?
Virtual LANs, or VLANs
One of your network users must work remotely from their office on an extremely confidential project. Their team is concerned about security so they call you, the IT department head, to see what can be done. What will you set up between this network user and the company server so that the communications are secure?
virtual private network (VPN) uses encryption
Which of the following components is not typically found in a wireless LAN (WLAN)?
Wireless LAN (WLAN)
You need to configure dynamic IP addressing on your network to cut down on management time. How will you do this? (Choose two.)
Enable DHCP settings on the router.
Configure each NIC to obtain an IP address automatically.
Your network admin needs to add a computer to an IPv6 subnet. Which of the following IPv6 addresses is on the same subnet as?
2601::0f:ab:cd:123:4a
Dylan is troubleshooting his IPv4 network. The network’s subnet mask is 255.255.192.0. Which of the following IP addresses is not on the same network as the others?
130.200.130.1
Which of the following is a PoE standard?
802.3bt (PoE++).
Your friend has purchased a PoE device for their home. It is a type 2 device. Which of the following PoE switches will be compatible with this device? (Choose two,)
802.3at-compliant switch
802.3bt-compliant switch
Which of the following is true of an ONT? (Choose two.)
It converts fiber-optic light signals to electrical (Ethernet) signals.
It requires external power to work properly.
Which of the following is not a benefit of software-defined networking (SDN)?
Requires a cloud-based network
Which type of WISP radio frequency has the advantages of no fees, less expensive equipment, and a wide pool of practical knowledge so help is easier to find?
Limited
You are working with your customer, a doctor’s office, to develop a network that will allow the doctor’s staff to work with their tablet PCs in any room of the office without having to worry about network cabling. What type of network will you establish for the doctor’s office?
wireless LAN (WLAN)
Which of the following is a network of storage devices that a server can access as if it were a locally connected drive?
storage area network (SAN)
Which of the following is true of a network TAP? (Choose two.)
TAP stands for terminal access point.
It allows network admins to monitor network traffic.
What software runs on a machine where data files to be accessed are housed and controls access to those files as requested by a client?
Fileshare server
A friend is having some issues with the wireless network in their apartment dropping the connection or running very slowly. What tool can be used to determine the best channel to use?
Wi-Fi analyzer
In the United States, the Federal Communications Commission (FCC) imposes rules that govern radio communications. What is the maximum EIRP (watts) that can be transmitted in the 2.4 GHz band for a point-to-multipoint WISP connection?
4 watts
Using which Wi-Fi channels does not require that your router has Dynamic Frequency Selection (DFS) and Transmit Power Control (TPC) built into the router?
Channels 36 to 48
Which broadband network communications technology became more competitive with other types of service when, in 2021, the FCC ruled to include it in the Over-The-Air- Reception Devices Rule (OTARD), which protects the rights of those organizations to place antennas where they are needed?
Long-range fixed wireless
What are the three A’s employed by authentication servers?
Authentication, authorization, accounting
Which Internet appliance is used to distribute incoming traffic over resources, such as multiple web servers?
Load balancers
What type of system, consisting of both hardware and software, is used to control and monitor industrial machines and processes?
Supervisory Control and Data Acquisition (SCADA)
Your friend owns a restaurant and provides free Wi-Fi to their clientele. Lately, they have been receiving complaints that the Wi-Fi isn’t working. It seems to work for customers already connected but not for people trying to connect. What 200 can be configured on the router to release an IP address and make it available for other users after a couple of hours?
DHCP lease duration
What type of address is known as a DNS AAAA address?
IPv6
What type of entry in a DNS record can be used for load balancing of incoming mail?
Multiple Mail Exchanger (MX)
What type of DNS record contains a list of users (IP addresses) that are authorized to send email on behalf of a domain?
Sender Policy Framework (SPF)
What two terms are used to identify an Internet provider that may connect to the Internet using T1 or T3 lines, or fiber optic, for example, and uses point-to-point millimeter-wave or microwave links between its towers for its backbone or to extend its service area, and point-to-multipoint wireless to provide Internet access to its customers?
wireless Internet service providers
(WISPs)
Your friend is again considering the network configuration in their apartment. They’ve asked you the difference between channels on the 2.4 GHz and 5 GHz networks that are available on their Internet connection. What will you tell them? (Choose two.)
If they are using the 2.4 GHz network, they should choose channel 1, 6, or 11 because they don’t overlap each other.
The 5 GHz network channels provide greater bandwidth, so data could be transferred faster, but they may have more interference with their neighbors.
Which IEEE Wi-Fi standard is also known as Wi-Fi 6?
802.11ax
Of the following fiber connectors, which are used for duplex (two strands instead of one)? (Choose two.)
SC
LC
What twisted pair connectors are commonly used with telephone wire?
RJ-11
Using the T568B wiring standard on both ends of a cable would produce what type of network cable?
T568B on both ends is a straight-through network cable.
You’re looking at a connector that has eight wires with colors in the order of green stripe, green, orange stripe, blue, blue stripe, orange, brown stripe, brown. What type of cable do you have?
Twisted pair, T568A standard
You need to install a memory upgrade in a laptop computer. The computer’s documentation says that the laptop uses DDR4 SODIMMs. How many pins will be on the SODIMM?
DDR4 SODIMMs have 260 pins
The most common RAM slots used in desktop and laptop computers, respectively, are what?
DIMM and SODIMM
Which laptop expansion port was designed as an industry standard to replace VGA and DVI ports and is backward compatible with both standards?
DisplayPort
You have a MacBook Pro computer with a Thunderbolt 4 port. What is the maximum throughput of a device plugged into this port?
40 Gbps
Which motherboard form factor measures 4.7′′ × 4.7′′?
Nano-ITX motherboards are 4.7″ square
Which of the following statements are true regarding CPUs and operating systems? (Choose two.)
A 64-bit OS can run only on a 64-bit CPU.
A 32-bit OS can run on a 32-bit CPU or a 64-bit CPU
The DC power supply (DCPS) within a laser printer converts AC power into what three voltages? (Choose three.)
+5 VDC
–5 VDC
+24 VDC
A technician is considering whether to buy a new LCD. Which type of LCD has faster response times than the others?
TN Liquid Crystal Displays (LCDs) have the fastest response times
Which type of storage device is composed of a conventional magnetic hard drive and a substantial amount of solid-state storage?
Hybrid
You need to share printers on your network with multiple client operating systems, such as Windows, macOS, and Linux. Which of the following services will best meet your needs?
TCP printing
Which one of the following connector types are you most likely to find on the end of a Cat 6a cable?
RJ-45
What type of printer technology will often use a roll of paper as opposed to individual sheets?
Thermal
Which of the following types of printers does not require the replacement of some sort of ink or toner?
Thermal
You are working on repairing a defective laser printer. Which of the following is a true statement regarding the imaging drum in a laser printer?
It can hold a high negative charge only when it’s not exposed to light.
What are the dimensions of a mini-ITX motherboard?
Mini-ITX motherboards are 6.7” square
When discussing video displays, what is the term used to describe the number of pixels used to draw the screen?
Resolution
You have three hard disks, each 1 TB in size. After installing them as a RAID-5 array in a computer, how much usable storage space will you have?
2 TB
What hardware device is used to store encryption keys, making them safer because they are never directly loaded into a server’s memory?
Hardware Security Module (HSM)
You need to enable clients to scan documents and place them on network-accessible storage regardless of the multifunction device’s location worldwide. Which service will best suit your needs?
Cloud services
What is the most important consideration when installing a network-connected multifunction device that is capable of directly scanning and emailing?
Security
What protocol is often used when scanning documents from a large multifunction device and sending them to the corporate server?
Server Message Block (SMB)
What features are included in modern networked MFDs? (Choose all that apply.)
Email
Scanning
Printing
Faxing