B.2.1 CompTIA A+ 220-1101 (Core 1) Domain 1: Mobile Devices

WISP

A SOHO's connection to the internet is through an antenna that sends and receives a microwave signal to the ISP's antenna. There can be no obstacles on the direct path between the two antennae. Which of the following internet connection types is this? Fiber DSL WISP Satellite

Enable the RTSP ALG

A customer is having trouble using Wi-Fi calling on a mobile phone at home. Cellular calls work fine, and Internet access through Wi-Fi also works at home. At work, the user can successfully make Wi-Fi calls. You have narrowed the problem down to the Wi-Fi router. Which of the following should you perform first? Enable IPsec passthrough Disable the SPI firewall Enable the RTSP ALG Set up a virtual server with port forwarding

Test the theory by attempting to browse to a website by its IP address.

A customer says she is unable to browse the Internet. You believe the cause of the issue is related to DNS. Which of the following should you do next? Implement preventive measures by assigning a preferred and secondary DNS server to the computer. Identify the problem by running the ipconfig /flushdns command. Test the theory by attempting to browse to a website by its IP address. Document your findings in your organization's knowledge base.

duplex

A customer wants to print a very large job on both the front and back sides of the paper. Which of the following printer settings should you advise the customer to change? Orientation Duplex Collate Transparency ADF PCL

Enable printer sharing

A customer wants to share a local USB printer with other users in the office. Which of the following is the best method to accomplish this? Install a print server device. Enable printer sharing. Install a USB hub. Install shared PCL drivers.

The removable drive is not locked.

A school classroom is set up with removable drives to train students in various versions of Windows. One student tells you that one of the computers will not boot up and receives an error: "no operating system found." All of the cables are plugged in securely to the computer. Which of the following is the most likely cause of this problem?

S/MIME

A technician is tasked with adding a valid certificate to a mobile device so that encrypted emails can be opened. Which of the following email protocols is best for the technician to use?

Restart the Print Spooler service.

A user can no longer print from his computer to the default printer. While troubleshooting this issue, you learn that you can print a test page from the printer and the printer's queue shows that the job is ready to print. Which of the following tasks should be performed next to resolve the situation? Delete the job and resubmit it. Reinstall the print drivers. Reset the printer. Restart the Print Spooler service.

Use the special function key to disable the touchpad when the laptop keyboard is used.

A user opens a help desk ticket to replace a laptop keyboard. The user reports that the cursor randomly moves when typing, causing them to make frequent typing corrections. The problem does not occur when the laptop is attached to a docking station and an external keyboard is used. You want to find a more affordable solution than replacing the keyboard. Which of the following actions BEST mitigates this problem?

Reverse proxy server

As a network administrator for your company, you want to set up a network device that manages internal traffic between servers and clients. Which of the following would BEST meet your requirements? Reverse proxy server Content filter VPN Forward proxy server

VDI

As the network engineer for a large financial institution, you have been given the responsibility to provide a new financial desktop to the financial advisors in all company branch offices. The requirements for the software desktop include: It must be a virtualization solution. It must be hosted in the cloud by a third party. It must run on a tablet. Which of the following virtualization types BEST meets your desktop software requirements? Type 2 hypervisor VDI Type 1 hypervisor Container virtualization

151.198.0.38

Fe80::403b:e791:b151:b92a%11(Preferred) 192.168.1.115(Preferred) 255.255.255.0 192.168.1.1 151.198.0.38 Based on the output, which address is most likely the DNS server?

Growing demand for storage Need to bring costs down

Google Cloud, Amazon Web Services, and Microsoft Azure are some of the most widely used cloud storage solutions for enterprises. Which of the following factors prompt companies to take advantage of cloud storage? (Select two.) Growing demand for storage Need for a storage provider to manage access control Need for a platform to develop applications Need for software to manage enterprise applications Need to bring costs down

Digitizer, Scanner

Jamie has been tasked with designing a solution for the paralegals in his office. They need to review old documents that are on paper files and create word processor documents from them that can be searched and cross-referenced.

RAID 1

Listen to exam instructions One of your customers wants you to build a personal server that he can use in his home. One of his concerns is making sure that he has at least one data backup stored on the server in the event that a disk fails. You have decided to back up his data using RAID. Since this server is for personal use only, the customer wants to keep costs down. Therefore, he would like to keep the number of drives to a minimum. Which of the following RAID systems would BEST meet the customer's specifications? Answer RAID 0 RAID 1 RAID 5 RAID 10

Modbus

Listen to exam instructions Which network protocol do controller systems use to communicate with each other? HTTP ICMP ARP Modbus

Has a single point of failure

Listen to exam instructions Which of the following is a disadvantage of using a UTM? Requires a separate endpoint management server. Has a single point of failure. Does not include a spam filter. Is more expensive than using separate security appliances.

The new memory was installed in the second bank and runs at a lower speed than bank one.

Memory was added to a workstation. When the computer was booted, it reported memory errors. Which of the following is the most likely cause of this problem? A different brand of memory was installed into bank two. The second memory stick was larger than the first. The second memory stick was smaller than the first. The new memory was installed in the second bank and runs at a lower speed than bank one.

DHCP

No matter how many ipconfig /release and ipconfig /renew commands you issue, the computer you are troubleshooting can only obtain an APIPA address. Which of the following has most likely failed?

Create an IP reservation for the printer.

On Friday, you set up a new printer on the network and configure it to obtain an IP address automatically. You record the IP address and set up users to print using that information. On Monday, you power on the printer, and soon after, users report that they can no longer print. You verify that users can access other network shares. Then, you print a configuration page and see that the IP address has changed. Which of the following methods should solve the problem so that it won't happen again? Set up the users to print to the printer's new IP address. Statically assign the current IP address to the printer. Create an IP reservation for the printer. Configure MAC filtering at the switch to ensure that the printer receives the same IP every time. Connect the users to another printer temporarily.

Bridged networking

One of the developers at your organization has configured a web application on a laptop using client-side virtualization. The application works fine on the developer's laptop; however, other users on the network are not able to access the application. Which of the following network configurations should you use for the virtual machine to allow other users to connect to the application directly over the network? Bridged networking Internal networking NAT networking Private networking

Disable the touchpad

One of your customers reports to you that when typing on the laptop keyboard, the mouse pointer scrolls across the screen. Which of the following steps can resolve this? Reboot the laptop. Plug in an external mouse. Use an external monitor. Disable the touchpad.

Prefix - FEC0:1319:7700:F631 Subnet - F631 Interface ID - 446A:5511:CC40:25AB

The following is an example of an IPv6 address: FEC0:1319:7700:F631:446A:5511:CC40:25AB Which part of the example IPv6 address is the prefix? Which quartet in the example IPv6 prefix is used to identify the subnet? Which part of the example IPv6 address is the interface ID?

Check for special keyboard features that could be enabled that may cause some keys to perform alternate tasks. Connect an external keyboard

Vera has brought her laptop computer to you for repair. After listening to her describe its symptoms, you decide that the laptop may have a malfunctioning keyboard. Which of the following steps can you take to BEST determine whether the keyboard needs to be replaced? (Select two.) Answer Recalibrate the keyboard's pressure sensors. Connect an external keyboard. Check for cracks in the power bundles that go from the keyboard to the motherboard. Use Device Manager to make sure that the correct keyboard driver is installed and up to date. Check for special keyboard features that could be enabled that may cause some keys to perform alternate tasks.

Dramatically improves performance by installing Hyper-V aware drivers. Lets you cut and paste between the virtual machine and host.

What are the benefits of installing integration services (IS) on a Hyper-V Windows virtual machine? (Select two.) Dramatically improves performance by installing Hyper-V aware drivers. Lets you select a NIC if you have configured an external virtual network. Makes it possible to decrease the virtual machine storage space. Lets you cut and paste between the virtual machine and host. Lets you increase the amount of RAM used by the virtual machine.

It is a metaphor for the internet based on the basic cloud drawing used to represent a telephone network.

What does the term cloud mean when referring to cloud computing? It is the name of an operating system that anyone can use to design, build, and provide cloud services. It is a metaphor for a data storage service with an ever-growing capacity, like storm clouds. It is a metaphor for the internet based on the basic cloud drawing used to represent a telephone network. It refers to the virtual hardware that cloud computing is built on.

guest operating system

What is another name for virtual machines? Sandbox Hypervisors Host machines Guest operating system

Equal to the amount of physical RAM.

What is the recommended size of the paging file under normal circumstances on a Windows 11 system with 16 GB of RAM installed? Equal to the amount of physical RAM. Twice the amount of physical RAM. No paging file is required. No more than three times the amount of physical RAM. As large as possible.

Real-Time Operating System

What type of operating system do embedded devices use? Linux Windows Real-time operating system Non-deterministic

Reseat or replace ram modules

When attempting to boot an operating system, you receive a message that warns you of a memory-read error. Which of the following steps should be performed to remedy this issue? Reseat or replace RAM modules. Change the memory settings in the BIOS/UEFI. Replace the storage drive. Remove any USB flash drives.

It allows a peripheral to be contacted by the mobile device

When dealing with Bluetooth, which of the following statements best describes the purpose of discovery mode? It disconnects all devices and connects the closest powered-on device It allows a peripheral to be contacted by the mobile device It instructs the mobile device to seek out all nearby devices and connect to them It allows two Bluetooth devices to connect to each other without a mobile device

ECC

Which feature of RAM is used to solve memory errors? ECC SODIMM Non-parity DDR4 Dual-channel

67

Which inbound port does a DHCP server use? 53 67 389 443

PaaS delivers everything a developer needs to build an application on the existing cloud infrastructure.

Which of the following BEST describes the Platform as a Service (PaaS) cloud computing service model? PaaS stores and provides data from a centralized location without the need for local collection and storage. PaaS delivers everything a developer needs to build an application on the existing cloud infrastructure. PaaS delivers software applications to the client either over the internet or on a local area network. PaaS delivers infrastructure to the client, such as processing, storage, networks, and virtualized environments.

The document is divided into horizontal lines of organized dots.

Which of the following BEST describes the Raster Image Process (RIP) for a document in a laser printer? The document is formed by causing a neutralized electrical charge where the laser light has written. The document is divided into horizontal lines of organized dots. The document is formed by the toner being attracted to the imaging drum where the laser wrote the image. The document is transferred to the charged paper from a drum holding the toner image.

In-lame switching (IPS)

Which of the following LCD display technologies is the BEST choice for use on touchscreen displays?

Can run on any OS. Acts as a software application.

Which of the following accurately describe a Type 2 hypervisor? (Select two.) Can run on any OS. Acts as an OS on a physical host machine. Acts as a software application. Manages access to software programs on the host. Dramatically improves performance of a Windows virtual machine.

Long-Form evolution Beamforming

Which of the following are types of cellular technologies running on a smartphone that allow for voice calls and data transfer without the need for Wi-Fi? 802.11ac Long-Term Evolution Beamforming Radio frequency ID Bluetooth Near-field communication

Li-Ion

Which of the following battery types offers the greatest storage capacity in the smallest amount of space?

UTP

Which of the following cable types is prone to EMI? Fiber optic STP UTP Multimode

Ethernet

Which of the following cable types should be used to connect a cable modem to a SOHO router? Ethernet Coaxial Thunderbolt USB

Rapid Elasticity

Which of the following cloud computing concepts allows scalable services to be provided to the client?

CAD/CVM SSH

Which of the following do not have anything to do with virtualization? VMware Hypervisor Hyper-V CAD/CAM KVM SSH

Solid ink ribbon

Which of the following ensures that thermal transfer prints (prints from a thermal printer) are durable? Special thermal paper Thermochromic coating Platen roller Solid ink ribbon

What has been allocated by the Hyper-V manager. The components installed on host machine.

Which of the following factors significantly determine the number of virtual machines that a host can accommodate? (Select two.) The number of software applications installed on the host machine. What has been allocated by the Hyper-V manager. The VHD file you want to use. Installation of integration services (IS) on the virtual machine. The components installed on host machine.

Remote Wipe, Locator Apps, Screen lock

Which of the following help to improve the security of sensitive information on your mobile device if it is lost or stolen? (Select three.)

MicroDIMM

Which of the following is a 172-pin DIMM that is often used in laptops?

SDN

Which of the following is a specialized controller that you can use to remotely manage all your network devices? PoE SDN VLAN SSH

Power-on password

Which of the following is enabled in the BIOS/UEFI that will prompt a user to enter a password every time the laptop performs a POST? Administrative password Windows password One-time password Power-on password

Stuck Keys Warped keyboard Loose connection

Which of the following issues are potential reasons as to why a laptop's keyboard stops functioning? (Select the three best answers)A. Stuck keys B. Bad inverter C. Loose connection D. Faulty touchpad E. Warped keyboard F. Discharged battery

Jitter

Which of the following issues causes variations in the latency of VoIP packets? Port flapping Half duplex Jitter QoS

1, 6, 11

Which of the following lists the correct non-overlapping channels in the 2.4 GHz wireless spectrum?

Inverter

Which of the following mobile device display components provides the required power for a mobile device's screen?

Network interface

Which of the following network components is responsible for converting digital data into a signal that can be transmitted? Switch Protocol Network interface Transmission medium

53

Which of the following ports is used by DNS traffic by default? 22 25 53 143 3389

Page count

Which of the following should be reset during normal printer maintenance? Page count Job queue Print job cache Tray settings

Contrast Ratio

Which of the following terms describes the difference between white and black in an LCD monitor?

passive heat sink

Which of the following thermal solutions might you find on memory modules? Active heat sink Passive heat sink Surface area dissipation Liquid cooling

LTO

Which of the following types of storage media can hold the most data? Blu-ray LTO DVD-ROM SD card

3.3 5 12

Which of the following voltages are provided by an ATX power supply? (Select three.) Answer 3.3 5 7 9 15 24 12

Laser

Which one of the following types of printers allows for the lowest cost per page?

L3 is shared between all cores. L1 is typically unique to a processor core.

Which statements are true of processor caches? (Select two.) L3 is shared between all cores. L3 cache is typically on the motherboard. A processor with L2 cache performs better than a processor with L3 cache (all else being equal). L1 is typically unique to a processor core. L1 is the largest type of cache.

VM

Which term refers to a software implementation of a computer system that executes programs like a physical machine? Virtual machine Hypervisor Physical host Workload management

RAID 5

Which type of RAID stripes data across three or more disks along with parity? RAID 0 RAID 1 RAID 5 RAID 10

Cloud

Which type of resource offers the following advantages? Flexibility of access Ease of use Self-service resource provisioning API availability Service metering Ability to try out software applications

Select a NIC using the virtual switch manager

While creating a virtual machine, you decide to set it up to use an external network. What else do you need to do to enable the eternal network configuration? Answer Set the RAM on the virtual machine to match the host. Make sure that you are using a Type 1 hypervisor. Configure the virtual machine to use Remote Desktop Protocol (RDP). Select a NIC using the virtual switch manager

52

You are a junior network technician for a small consulting firm. You have recently learned about IP addressing and run the ipconfig command on your local computer. The output from the command is: IPv4 Address..... 192.168.0.52 Subnet Mask..255.255.255.0 Default Gateway..192.168.0.1 Which of the following is the host ID? Answer 192.168.0.1 255.255.255 52 192.168.0

Syslog

You are a network administrator for your company and work on the third floor of your building. Your network switches are located in a server room on the first floor. You want to be able to read through the events of your managed switches while sitting at your Windows workstation. Which technology should you implement? FTP DNS Syslog IDS HTTPS

Magnetic fields

You are a system administrator for a financial institution. Most of your employees work at home and have various work environments. One of your account managers is complaining that customer data is disappearing from her account management application. She insists that she saves data regularly and has not had a problem until recently. Her workstation has both a solid-state drive (SSD) and a traditional hard drive. She runs the application from the SSD drive, but stores the customer data on the hard drive. She has recently moved her desk to a room in her house that is used for entertainment. The room has a sound system with several installed speakers for surround sound. Which of the following types of interference might be causing the issue with disappearing customer data? Electromagnetic interference (EMI) Radio frequency interference (RFI) Negative pressure HVAC system Magnetic fields

Remove the CMOS battery and reinsert it after 10 seconds.

You are a technician troubleshooting a PC workstation. When it is turned on, a black screen appears prompting the user for an administrative password. You cannot locate the password. What should you do? Remove the CMOS battery and reinsert it after 10 seconds. Disconnect and reconnect the internal storage drive. Press the power button for 30 seconds, then reboot. Remove the motherboard and replace it after 10 minutes.

Filters or splitters

You are configuring an ADSL connection. Which of the following will be part of the configuration? Answer F-type connectors An RG6 cable Analog modem Filters or splitters

Parallel Port (DB-25)

You are connecting an older dot matrix printer to a computer. The printer's cable is a D-shaped connector with 25 pins (pictured below). Which port type does the printer connect to? Parallel port USB port Serial port VGA port

Configure an automatic backup to the hard disk drive.

You are currently running a video editing application on your Windows 11 laptop. The laptop includes both an SSD drive and a traditional hard drive. You run the video application on the hard drive, but you would like to install and run the app from the SSD drive to enhance performance speed. Which of the following should you do to protect the video application and associated data files from drive failure when Enable the TRIM functionality. Configure an automatic backup to the hard disk drive. Encrypt the data on the SSD drive. Defragment the SSD drive on a regular basis.

Establish a theory of probable cause

You are helping a customer with an Internet connectivity problem. The customer tells you that the computer cannot connect to her favorite website. After quickly analyzing the computer, you note that it cannot connect to any websites. Which of the following tasks should you perform next? Identify the problem. Establish a theory of probable cause. Test your theory to determine cause. Establish a plan of action.

LCD display with IPS panel

You are putting together a system for a graphic artist and need to make sure that you find a display that meets their needs. The display needs to have very good color reproduction quality and viewing angles. The display also needs to have proper cooling and be power-efficient. Which of the following display types will MOST likely meet these needs?

You missed a screw.

You are removing the bezel from a laptop's LCD display screen. After several attempts to pry up the bezel and remove it, you have not separated the bezel from the case. Which of the following is the MOST likely reason for your inability to remove the bezel?

fuser assembly pickup rollers transfer belt

You are required to perform preventive maintenance on a laser printer. What should be replaced? RAM Fuser assembly Pickup rollers Paper Paper trays Transfer belt

IPS

You are the network administrator for your company and in charge of installing a device that will proactively stop outside attacks from reaching the local area network. Which of the following devices should you implement? IDS Proxy server IPS Authentication server

SMART

You are troubleshooting a storage drive that has had some missing and corrupted files. The operating system boots normally. You run the command wmic diskdrive get status and receive several messages that say "bad" and "unknown." What are you analyzing? RAID SAN S.M.A.R.T. BSOD

Continuous reboots

You are troubleshooting what appears to be a RAM issue on a desktop computer. Which of the following symptoms would indicate the problem is really a RAM issue? POST code beeps Capacitor swelling Wrong BIOS/UEFI time Continuous reboots

Resolution

You are working in a conference room troubleshooting a video problem. A laptop is connected to a projector in extended display mode. The desktop's icons appear normal on the laptop, but they are disproportionate and illegible on the projector screen. Which of the following should you check? Resolution HDMI cable Focus Keystone Bulb

DirectX

You are working on a gaming computer that is running an older version of Windows. There is a high-end gaming application that isn't performing very well. So far, you have updated all of the hardware on the system and flashed the BIOS. What should you analyze further in an attempt to fix the problem? Video driver DirectX Resolution setting Safe Mode OSD

Cat 5e

You have an application that sends large amounts of data over the network to a server and requires a network connection that can handle as much as 600 Mbps. Which of the following network cables meets that requirement at the lowest price point? Cat 3 Cat 5 Cat 5e Cat 6

802.11g

You have been contacted by OsCorp to recommend a wireless internet solution. The wireless strategy must support a transmission range of 150 feet, use a frequency range of 2.4 GHz, and provide the highest possible transmission speeds. Which of the following wireless solutions should you recommend? Answer 802.11ac 802.11b 802.11g 802.11a

RAID 0

You have been tasked with configuring two drives for maximum performance. Which of the following RAID types should you select? RAID 0 RAID 1 RAID 5 RAID 10

fiber-optic cable

You have been tasked with running a network extension to the warehouse that is 50 meters (164 feet) away. The proposed path will take the network extension near several fluorescent light fixtures and a large electric motor. Your manager says that budgeting is not an issue. What type of cable would be best for this environment? Unshielded twisted-pair Coaxial Fiber optic Shielded twisted-pair

Establish a theory of probable cause Question the obvious

You have identified a network problem as a connectivity failure between one Windows computer and a switch. What should you do next? Question the user of the Windows computer. Establish a plan of action to resolve the problem. Establish a theory of probable cause. Test the theory to determine cause. Question the obvious. Document findings, actions, and outcomes.

USB, WiFi

You just purchased an iPad tablet device. You want to synchronize your photos, music, email, and contacts from your Windows 11 PC to the device. Which of the following can you use to connect the device to your PC? (Select two.)

Form factor Output wattage Type of number of connectors

You need to replace the power supply in your home desktop computer. Which of the following specifications are the MOST likely to affect your power supply choice? (Select three.) Form factor Output voltage selections An on/off power switch Output wattage Input voltage selections A fan that cools the unit Type and number of connectors

Reconnect the antenna connections.

You recently replaced a malfunctioning video card on your laptop. After you reassemble the laptop, everything works well except for the wireless network connection. The wireless adapter functioned correctly before you replaced the video card. Which action can MOST likely resolve this problem?

DC Volts

You suspect that the power supply in your desktop PC is failing. You want to use a multimeter to test the power supply. Which multimeter setting should you use? AC volts DC volts Ohms Watts

Sandbox

You want to create a virtual machine environment in which you can develop and test new software. Which virtualization benefit BEST describes the testing environment that you want to implement?

Type 1 hypervisor

You want to create a virtualization environment that runs directly on the host machine's hardware to manage the virtual machines. Which of the following virtualization types should you use? VDI Type 1 hypervisor Container virtualization Type 2 hypervisor

IaaS

You were recently hired by a small startup company. The company is in a small office and has several remote employees. You have been asked to find a business service that would accommodate the company's current size but would also be able to scale as the company grows. The service needs to provide adequate storage as well as additional computing power. Which cloud service model would BEST fit these requirements? SaaS DaaS IaaS PaaS

Replace the imaging drum, as it is probably at end of life.

You work for a company based in Phoenix, Arizona, which is a very hot and dry area. Several people in the research department have reported that even though their files are printing to the laser printer correctly, a much lighter copy of the same text also prints within 2 to 3 cm of the original text. Which of the following would MOST likely fix this type of ghosting image? Replace the imaging drum, as it is probably at end of life. Remove the toner container and gently shake it to remove clumps from the image toner. Vacuum the fuser assembly to clean off excessive ink toner. Use a heavier weight paper to avoid paper shift.

SSO (Single Sign-On)

You work for a large organization as a help desk manager. Your help desk has been plagued with hundreds of password resets each day for the past couple of weeks. Which of the following would help alleviate the number of support tickets that are generated due to forgotten passwords, while keeping the same or better level of security? MFA SSO Simple WPA passphrases Power-on passwords

Install a proxy server.

You would like to control internet access based on user, time of day, and websites visited. Which of the following actions would BEST meet your criteria? Enable Windows Firewall on each system. Add or remove exceptions to control access based on time of day and content. Configure each system's Local Security Policy to add access restrictions based on time of day and content. Configure internet zones using Internet Options. Configure a packet-filtering firewall. Add rules to allow or deny access based on time of day and content. Install a proxy server. Allow internet access only through the proxy server.

USB-C

You've just purchased an Ethernet adapter for your Android tablet. Which of the following USB connector types would you MOST likely use to plug in to the adapter?

SaaS with a simple multi-tenancy implementation.

Your company cloud service currently provides data storage, processing, and network connectivity that hosts several services and applications used by your employees. You want to transition to a cloud service that provides many of these services and applications natively without the IT department needing to constantly maintain and update the services and applications. In addition, the IT department wants to make sure that the cloud service provides employees with resources that are segregated from other employees. Which of the following cloud service solutions meets these requirements? PaaS with a simple multi-tenancy implementation. SaaS with a fine-grain multi-tenancy implementation. SaaS with a simple multi-tenancy implementation. PaaS with a fine-grain multi-tenancy implementation.

The source computer's resolution settings do not match the projector's resolution settings.

Your projector is displaying the colors on the screen incorrectly. What is the MOST likely reason for this problem? The source computer's resolution settings do not match the projector's resolution settings. The projector's filter sensor was triggered. A VGA cable was used to connect the computer to the projector. The projector driver needs to be updated.