A+ Part 1
Which type of wireless network utilizes the 2.4 GHz or 5 GHz frequency bands and reaches speeds of 108 Mbps to 600 Mbps?
802.11n
What are the dimensions of a MicroATX motherboard?
9.6"x9.6"
Your boss is looking for a recommendation for a cloud solution that will only allow for both onsite systems and cloud services to work together seamlessly. What type of cloud model should you recommend?
A hybrid cloud model allows for the seamless integration of both onsite and cloud services to the end-user simultaneously.
During a disaster recovery, which of the following statements is true?
A virtual machine has less downtime than a physical server
Which of the following is the virtualization technology supported by most modern AMD processors?
AMD-V
A customer's system clock is continually resetting itself causes discrepancies with the date and time. Which of the following components of the system should you investigate as the root cause of this issue?
BIOS
A user has reported that their workstation is running slowly. You perform a reboot of their workstation and receive a S.M.A.R.T. error during the boot-up process. Which of the following actions should you perform FIRST?
Backup the hard drive
An employee is complaining that their workstation is not booting into Windows when they reboot their machine. You noticed that during the reboot, the system is loading into a PXE-based OS. What should you do next?
Boot to BIOS and select the HDD from the boot order
You are troubleshooting a laser printer and noticed the paper's image has a white streak running across the face of the paper. Which of the following should be performed to fix this issue?
Clean the printer's corona wires - A dirty corona wire can cause a portion of the drum not to be charged properly and lead to a white streak appearing on the printed image.
A technician needs to upgrade the RAM in a database server. The server's memory must support maintaining the highest levels of integrity. Which of the following type of RAM should the technician install?
ECC - Error Correcting Code is a type of system memory that has built-in error correction security.
Which type of technology imitates hardware without relying on the CPU being able to run the software code directly?
Emulator
Your printer is connected directly to your computer using a USB cable. Your coworker's printer is broken, and they asked you to share your printer to allow them to print. Which of the following should you do as a temporary solution to allow them to print without incurring any additional cost?
Enable printer sharing on your windows system
Dion Security Group has established a Security Operations Center (SOC) that operates 24/7. They have several 65" plasma TVs at the front of the room that are used as computer displays to show open tickets. You turned off the televisions to clean the screens and noticed that the company logo is still visible in each of the screens' upper left corners. Which of the following should you do to correct this?
Replace the plasma TVs
Which of the following cables was a proprietary cable used in many iPhones and iPads?
Lightning
the company has decided to purchase a ground-based microwave service for their primary internet connection. The technician installed a small directional antenna on the office roof and pointed it at an antenna on another building 5 miles away. Which technology is being used?
Line of Sight
Which of the following security features would allow a user to track their laptop's location if it was stolen?
LoJack
You see some fading across your papers when printing things using a laser printer. The black color appears to be more faded than the other colors on your documents. What is the BEST solution to this problem?
Replace the toner cartridge in the printer - A symptom of low toner is faded or faint colors in your printed papers.
Jay is complaining that the speed at which the cursor moves across his laptop's screen when using his trackpad makes it difficult to properly control. Which setting could he use to slow down the cursor in Windows 10?
Settings > Devices > Touchpad > Speed
There are five DMV locations spread out across the city that you have been asked to connect with a network. You have created a list of requirements for this network, including that it must be wired and support at least 1 Gbps of bandwidth. Which of the following network types would MOST likely be used for the DMV to connect their internal networks across the city securely?
MAN - metropolitan area network
Your college has several campuses located across the city. Within each campus, the buildings are interconnected with a campus area network. If you connect each of the campuses across the city, what type of network would this become?
MAN - metropolitan area network
Which of the following types of data should you transmit over TCP?
an order for a 50k stock purchase
What type of connector is most commonly used to terminate a copper twisted-pair Ethernet cable?
RJ-45
You just received a laptop that was reported to have a glass of water spilled on it. You want to examine the components in the laptop to begin troubleshooting it. What are the first steps you should take as part of your troubleshooting process?
Remove the external casing of the laptop and document the screw locations
Sarah is connecting a new wireless mouse to a client's laptop. Which of the following technologies is MOST likely being used to connect the mouse to the laptop?
bluetooth
He wants to add the ability to take credit card payments from customers on his mobile phone. Which of the following devices should he purchase and configure?
bluetooth card reader
Which type of internet connection allows for high-speed bi-directional data communication over a hybrid fiber-coaxial (HFC) connection?
cable
An inkjet printer is printing images and text at an angle, and sometimes they don't print at all. Which of the following would a technician perform to align a printer?
calibration
Which of the following is true of a dedicated video card in a computer system?
can be upgraded or replaced
Which of the following services does Apple use for syncing their data across multiple macOS and iOS devices?
iCloud
Which of the following network configurations on a virtual machine are used to prevent the VM from accessing the internet, but still allow it to communicate with other VMs on the host and the host itself?
internal
what type of charging cable they need. They know their phone is running iOS 15. What kind of cable does your friend need to charge their phone?
lightning
An eSports participant wants to build a custom computer system that is extremely fast but also operates quietly. Which of the following options should they install as their cooling mechanism?
liquid cooling
client has asked you to build a computer to use as part of their home theater (HTPC) system. The HTPC will be used primarily to stream videos in their living room and must have a small form factor to fit into their entertainment center next to their surround sound system. Which of the following motherboards would be the BEST choice for an HTPC system?
mini-ITX
Which of the following tools should you use to determine if the proper amount of power is being supplied to the motherboard?
multimeter
Which of the following types of encryption should be selected on a SOHO access point if you are running a coffee shop and want all of your customers to be able to join it by default?
open
What command is used to test if your own network card's driver is working properly?
ping 127.0.0.1
One of the technicians would like to share the manager's printer with the other 12 employees for the next 2 weeks as a temporary workaround. Unfortunately, there are no spare wired network jacks available in the office to connect the printer to the network directly, but there is a wireless access point nearby. Which of the following is the BEST way for the technician to allow the 12 employees to access the manager's printer?
purchase a portable wireless print server and connect the printer to it using USB
Dion Training's file server is using a RAID 5 with four disk drives as its data store. One of the drives in the array has just failed. The RAID 5 is still operating and no data loss has been experienced, but the array is no longer providing any resiliency or redundancy. Which of the following actions should you take to restore this drive to normal operations?
replace failed disk and rebuild the array
the best form of internet connection for a ship crossing the Atlantic Ocean. The ship must remain connected to the internet for the entire duration of its voyage. Which of the following types of connections do you recommend?
satellite
John is a small business owner who is always running between meetings. He wants to buy a device that will let him quickly and easily see his email notifications, view his instant messages and chats, and keep in touch with his executive assistant who is back at the office. Which device would BEST meet John's needs?
smartwatch
A customer is trying to configure an 802.11b wireless card in an old laptop to connect to an 802.11g wireless router. When the customer scans for the wireless network's SSID (Dion-Corp), it is not displayed within Windows. What is the MOST likely reason that the SSID is not being displayed?
the broadcast is disabled on the wireless router
After 24 minutes, the project goes blank. Jason allows the students to take a 15-minute coffee break while he attempts to turn the project back on. The project runs for another 4 minutes and then turns off again. What is MOST likely wrong with the projector and the laptop setup?
the projector is overheating
A customer called the service desk and complained that they could not reach the internet on their computer. You ask the customer to open their command prompt, type in ipconfig, and read you the IP address. The customer reads the IP as 169.254.12.45. What is the root cause of the customer's issue based on what you know so far?
the workstation cannot reach the DHCP server
Jason decided to configure the virtual machine with the static IP of 192.168.1.10 to make it easier to identify on the network. Ever since this static IP was issued, both the virtual machine and a printer on the network have had intermittent connectivity issues. What is MOST likely the cause of these issues?
there is an IP conflict
he office needs 2 computers to be installed at the receptionists' desk to schedule appointments, read email, browse the web, and conduct basic word processing tasks. Which of the following type of computers would BEST meet the needs of this doctor's office?
thick client
Which of the following resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the internet?
virtual internal network
Which of the following ports is used by the Server Message Block (SMB) protocol to share files and printers on a Windows network?
445
Which of the following devices would allow you to control and provide input commands to multiple servers within the same server rack using a single set of input devices?
KVM - A keyboard video mouse (KVM) switch is used to support a single set of input and output devices controlling several PCs.
Which of the following types of laptop displays would utilize a fluorescent backlight to illuminate the image?
LCD
You look over the laptop, and the screen appears to have some spider web cracks in the panel, but you can still fully see the images on the display. You attempt to operate the laptop using the touchscreen and it appears to be fully responsive to your touch. Which of the following components MOST likely needs to be replaced?
LCD Panel
Which of the following DC voltages are not found within a printer when the laser printer converts AC power into DC power for use?
-24 VDC
A car dealer recently set up an impact printer in their automotive repair shop. Unfortunately, the printer's output is now starting to crease the paper as it is printed which can lead to a paper jam during feeding. Which of the following might be causing these issues? (Choose TWO)
1. Incorrect paper size 2. Excess paper in the feed path
Your neighbor attempted to replace the projector's bulb, but after running for a few minutes, a message appears on the screen, and the projector turns itself off again. Based on these symptoms, what are the MOST likely causes of the projector continually turning off after just a few minutes of usage with a new bulb? (Select TWO)
1. the cooling fan needs to be cleaned or replaced 2. the bulb's life counter needs to be reset
A computer technician is configuring a NAS for a company to store their corporate data. The technician has installed three 6 TB hard drives operating at 7200 RPM in a RAID 5 configuration. How much usable storage space is contained in this NAS?
12TB
Which of the following ports should you block at the firewall if you want to prevent a remote login to a server from occurring?
22
Which port is used to connect to an SMTP server?
25
Which of the following ports is used by LDAP by default?
389
Which of the following parts is responsible for converting the analog signals created by your tapping or swiping the surface of a display to a binary signal that is understood by the underlying software?
Digitizer - The digitizer is used to convert touch events to digital signals that can be interpreted as different types of input.
A customer's computer has a noisy, whining sound coming from it when in use. You opened the case and did not see any dust on the fans. What should you attempt next to eliminate the noise?
Apply a small amount of oil to the fan's bearings
You have decided to purchase a device for the trip for the sole purpose of reading books, but it must have extremely long battery life and not get distorted or hard to read in the sunlight. Which should you purchase?
E-reader
You are building a new server and want to ensure that its memory can allow the server to continue working even if there is an issue that corrupts data held within the memory modules. Which of the following types of memory should you select for the server?
ECC
What type of connector is used to connect to a serial port or external modem?
DB-9
Which of the following components would require you to de-solder the old part from the laptop to install and solder in a new one?
DC jack
Dion Training's service desk has received calls from numerous users stating they are receiving an error message concerning duplicate IP addresses being detected on their systems. These users also cannot access the network's file server or browse any websites. Which of the following servers should the technician check first in troubleshooting this issue?
DHCP server
Which of the following internet connection types utilizes analog, audible signals being passed over a traditional phone line to connect two computer systems?
Dial-up
"There is an IP address conflict with another system on the network." You are working as a field service technician and have been asked to resolve this error. What should you do?
Configure the laptop's network connection to use DHCP instead of a static IP
You are attempting to build a new gaming workstation and have just finished installing the motherboard and the processor. You are about to begin installing two memory modules, and notice 4 DIMM sockets on the motherboard labeled 0, 1, 2, and 3. Two of these are colored red, and two are colored blue. Which of the following should you do FIRST?
Consult the motherboard's manual
The VMs need to have access to a virtualized network and communicate with the host operating system and the internet. Which of the following types of network connections should you configure for each VM?
External
You want to boot from a removable USB device to troubleshoot your Windows 10 laptop. During your rebooting of the machine, which key should you press to enter the boot order menu?
F12
Which of the following devices combine an accurate geolocation system that communicates with a constellation of 24 satellites continuously during its operation?
GPS
Which of the following describes the IP address of a router to which packets destined for a remote network should be sent by default?
Gateway - The default gateway parameter is the IP address of a router to which packets destined for a remote network should be sent by default.
Jason needs the Internet for an in-class demonstration, he connects his laptop to his iPhone over Wi-Fi and essentially connects to the Internet using the smartphone as a modem. Which of the following terms best describes this configuration?
Hotspot
Which of the following cloud computing resources are MOST important when determining a cloud file-storage synchronization application's performance?
I/0 bandwidth - The higher the I/O bandwidth, the faster and more efficient a cloud file-storage synchronization application will become.
Which cloud computing concept is BEST described as focusing on the replacement of physical hardware at a customer's location with cloud-based resources?
IAAS
What is the first step of the CompTIA troubleshooting methodology?
Identify the problem
they state that there are black bars on the left and right sides of the screen and that the image appears squashed and distorted. What is MOST likely the cause of this issue?
Incorrect display resolution
When you boot up the 72nd desktop you installed, you smell a foul-smelling chemical odor. You sniff the air again and confirm the smell isn't a burning smell. Upon opening the case, which component should you inspect for damage and expect to replace?
Motherboard
You are at the grocery store. At the checkout, you place your smartphone near the payment terminal to authorize the charge. Which of the following technologies did you use to make this purchase?
NFC
This is the third time they have dropped their laptop and caused their hard disk's internal platter to fail. Which of the following devices should you replace their internal hard drive with to prevent this issue from occurring again?
NVMe
The manufacturer wants to create the thinnest and lightest laptops in the world. To do this, they need to choose the right technology for their displays. Which technology should Dion Consulting recommend to allow for the thinnest laptop displays?
OLED
A user wants to print a spreadsheet horizontally on a piece of paper instead of vertically to fit more columns on a single page. What setting should the user enable on the printer for this print job to achieve this result?
Orientation
The video editor at Dion Training has submitted a trouble ticket stating her editing workstation makes a loud clicking noise whenever she is editing videos for an upcoming course. You initially thought the system fans were causing the noise. You have replaced the fans, but the noise continues to be heard when applications are loaded or the videos are being edited. Which of the following actions should you perform NEXT?
Perform a full backup of the hard disk - A clicking noise is commonly associated with a hard drive that is about to fail.
Sally is troubleshooting a customer's PC that is operating extremely slowly. The customer works as a video editor and often downloads large files, edits them into a new file, then deletes the original files from the hard disk to free up space. Sally performs a hard drive read/write test and verifies the drive is operating 60% slower than its baseline configuration speed. Which of the following should Sally do to speed up the drive?
Perform disk defragmentation on the drive
Your company has decided to move all of its data into the cloud. Your company is concerned about the privacy of its data due to some recent data breaches that have been in the news. Therefore, they have decided to purchase cloud storage resources that will be dedicated solely for their use. Which of the following types of clouds is your company using?
Private
Which network technology is used to prioritize certain types of network traffic over others?
QoS - Quality of Service (QoS) means using a network protocol to prioritize certain traffic types over others.
The technician has only two hard drives available for use and needs to ensure that the data's fault tolerance and redundancy. Which of the following would be is the best configuration to implement?
RAID 1
Which cloud computing concept is BEST described as focusing on the replacement of applications and programs on a customer's workstation with cloud-based resources?
SAAS
Tom is running some new Cat 5e cabling in an office building to connect a few offices. The ceiling is constructed as a drop ceiling with fluorescent lights and does not have any cable trays. Due to the proximity of the fluorescent lights to the cable being run, what type of CAT 5e cable should be run?
STP - STP (Shielded Twisted Pair) is a type of cabling that can help prevent electrical interferences or cross-talk.
Your network is running extremely slow. You have troubleshot the issue and determined that there are too many collisions on the network. Your network currently has 20 computers, all connected to a single 24-port hub on the network. Which of the following devices should you install to decrease the number of collisions?
Switch
What is the third step of the CompTIA troubleshooting methodology?
Test the theory to determine the cause
When the workstation is powered on, the workstation is booting up into Kali Linux instead of Windows 10. There is only one hard drive installed in the workstation, but the technician does observe an 8GB USB thumb drive connected to a rear USB 3.0 port. Which of the following is the MOST likely reason for the workstation booting into Kali Linux instead of Windows?
The boot order of the devices is incorrect
John attempted to print a document, an error message was displayed that indicates access was denied to the printer. John tried to restart the printer and workstation, but the same error message is displayed when he attempts to print a document. Which of the following MOST likely caused this issue?
The user lacks adequate security permission to the printer
Which of the following technologies can provide up to 40 Gbps of bandwidth?
Thunderbolt
What is a tool that would allow you to easily identify a network cable that was not labeled in the wiring closet during its installation?
Tone generator and probe
none of the cables in the communication closet are labeled. Which of the following tools should you use to determine which cable in the communications closet is connected to the wall jack in the user's office since none of the cables are properly labeled?
Tone generator and probe
Which of the following refers to using virtual machines as a method of provisioning workstations for corporate users?
VDI
You have been asked to select a technology that would allow employees to work remotely from their homes during poor weather conditions. Which of the following should you select?
VPN
You have properly followed the troubleshooting steps and have created a plan of action to fix the workstation. Unfortunately, your solution will require that the workstation be taken back to your off-site repair shop to solve the workstation's problems fully. What is the NEXT thing you should do to fix this workstation?
Verify the contracting firm's corporate policIes regarding the removal of a workstation for repairs
When using a Type 1 hypervisor virtualized environment, which of the following hardware types is necessary to connect the VMs to the corporate network?
Virtual NIC
You are installing a new wireless network in your office building and want to ensure it is secure. Which of the following configurations would create the MOST secure wireless network?
WPA2 and AES