certmaster

An end-user wants the versatility of having both a laptop and a tablet and does not want to use any external peripherals. What would you recommend for the end-user?

Recommend a tablet/laptop hybrid.

You are going to a festival and you want to set up a booth and sell some things when you get there, but you want people to be able to purchase your wares by means other than cash. What is one solution for this?

Use a credit card reader attached to your smartphone.

What is a benefit of the Lightning connector?

What is Apple's 8-pin connector called?

What is a cellular card used for?

4g lte wifi

Everywhere you go you see people with very expensive smartphones with cracked screens and scratches and dents on their cases. What could you do to prevent the same from happening to your phone?

rubber case

What is the key attribute of Internet Message Access Protocol (IMAP) that makes it different from Post Office Protocol 3 (POP3)?

(IMAP stores emails on servers)Emails are stored on a remote server until the user deletes them.

Which of these is an example of a user account for Android?

A Google Account An Android device requires either a Google Account or a similar vendor account, such as a Samsung Account. iOS requires an Apple ID, while an Android device requires either a Google Account or a similar vendor account, such as a Samsung Account. An Apple ID is the user account for Apple devices. A user account, such as an Apple ID, requires you to select a unique ID and to configure your credentials (pattern lock, fingerprint, face ID, and so on). Third-party developers can create apps for iOS using Apple's Software Development Kit (SDK) Xcode and the programming language Swift. Xcode can only be installed and run on a computer using macOS.

You need to connect to the guest wireless network in your corporate environment. What could you install in a laptop that did not have wireless capabilities, so you can connect to the guest WiFi?

A Mini PCIe adapter

An end-user does not want to use a phone anymore to check email while in the office. What mobile technology could you suggest that would best accomplish this?

A WiFi smart watch Some newer smart watches are starting to appear with their own Wi-Fi connectivity, allowing use of the watch without proximity to a paired phone. Most smart watches use Bluetooth to pair with a smartphone. They can display key information at a glance (emails, messages, and social media status for instance), allowing the user to better interact with the phone. Although they can connect to Bluetooth or WiFi, fitness monitors focus on exercise and health uses rather than a range of computing tasks. This makes them cheaper devices than smart watches. Runners often use GPS trackers, which is a feature found in fitness monitors, to better map their exercise accurately. You can't check email on a GPS fitness monitor.

When using an open public hotspot, which of these does NOT protect the user from an attacker sniffing the traffic?

A captive portal A business may set up an open access point to allow public access. When using a public hotspot, anyone else joined to the wireless network and the owner of the hotspot can easily intercept traffic passing over it. SSL (Secure Sockets Layer) protects confidential information such as the account password and is necessary if you connect to mail over a public link (such as an open Wi-Fi "hotspot"). Users need to be careful to use TLS (Transport Layer Security) with a valid digital certificate to send confidential information to and from web servers and mail clients. A Virtual Private Network (VPN) uses IPSec or Secure Sockets Tunneling Protocol (SSTP) to create a "tunnel" through a carrier network to protect the browsing session.

What smart device would best help improve a runner's exercise regimen?

A fitness monitor

You want to play your favorite computer game, but you do not like using a keyboard and mouse to interact with it. What alternative input device could you use to best replace the keyboard and mouse while gaming?

A gamepad controller

Which of these would you typically want to replace with the same Original Equipment Manufacturer (OEM) part on a laptop?

A smart card reader Smart card readers support authentication, typically need to be replaced by the same Original Equipment Manufacturer (OEM) part and are connected to the motherboard using a data transfer cable. The CPU is generally upgradeable so long as the new device is supported by the motherboard and isn't soldered to the motherboard. RAM can be upgraded in a laptop and is installed into slots on the motherboard that pop-up at a 45-degree angle usually via a panel. Disk drives can easily be upgraded in laptops and can usually be accessed via a panel or chassis on some models.

What is the main distinction between a tablet and a smartphone?

A tablet is larger than a smartphone.

Which of these does NOT need to be connected to the system board when replacing them?

AC Adapter An AC Adapter is easily replaceable in a laptop. The AC connector connects to the DC Jack. The DC Jack is what is soldered to the motherboard, not the AC connector from the power supply. An inverter supplies the correct AC voltage to the backlight from the laptop's DC power circuits. Take care not to damage the connectors to the system board. Laptop speakers need to be connected to the video card and system board. Remove the old speakers and fit the new ones, remembering to connect the audio cable. With smart card readers, you typically need to completely disassemble the laptop and connect it to the system board using a data cable.

What is the difference between Augmented Reality (AR) and Virtual Reality (VR) technology?

AR projects digital artefacts onto reality, VR takes the place of what you see and hear.

For Global Positioning System (GPS) to work, which of these does NOT need to be enabled?

Airplane mode

Which of these processors are used in low-powered smartphones?

Atom-Smartphone PC-i7 PC-Xeon PC-Pentium

What email standard does NOT use encryption with digital certificates for security?

Autodiscover

What mobile device provider configuration allows published DNS to identify how an email account for a domain should be configured?

Autodiscover means that the mail service has published special Domain Name System (DNS) records that identify how the account for a domain should be configured. S/MIME (Secure Multipart Internet Mail Extensions) works with digital certificates and public/private key pairs to help ensure the security of messages that are sent and received. To manually configure an Exchange ActiveSync account, you need to enter the email address, user name, host address, password, SSL options and domain name. Autodiscover will configure all this information automatically. If the email provider uses custom port settings, you would need to obtain those and enter them in the manual configuration. Autodiscover does not require manual port configuration.

Why can you NOT use a Lightning connector in an Android device?

Because it is not a apple device duh.

Your coworkers want to be able to check their web-based email on their phones. They have a wide range of service providers, including Google, Yahoo!, Outlook, and iCloud. How can you help them incorporate these email services into their mobile phones?

By downloading the provider's official app from the mobile device's store

You are troubleshooting a touchscreen on a laptop that is non-responsive. If you just picked up the device from being serviced, what is most likely thing you should do?

Check that the wires are still connected. If the laptop has just been serviced, check that the right wires are still connected in the right places for the digitizer to function. The screen was most likely cleaned when the device was just recently serviced. Any damage to the screen would have been addressed by the technician servicing the device. You can try using the device in a different location, in case some source of electromagnetic interference (EMI) is affecting the operation of the touchscreen. However, there is more likely a problem with wire connectivity.

You have replaced your desktop computer with a powerful gaming laptop. However, you have run out of ports to connect your peripherals and you need an expansion card for an extra NIC. How can you overcome this limitation?

Connect the laptop to a docking station. A laptop is limited in the number of peripherals that can connect to it. When docked, a portable computer can function like a desktop, expanding the amount ports and adding a full size expansion card. A port replicator provides a complement of ports for connections, but does not add any other functionality, and would not allow the addition of another NIC card. A USB to RJ-45 adapter would allow you to add an extra physical NIC, but it requires the use of a USB port that, in this scenario, is not available. A USB to WiFi adapter would allow you to add an extra wireless NIC, but it requires the use of a USB port that, in this scenario, is not available.

You have replaced your desktop computer with a powerful gaming laptop. However, you have run out of ports to connect your peripherals and you need an expansion card for an extra NIC. How can you overcome this limitation?

Connect the laptop to a docking station. A laptop is limited in the number of peripherals that can connect to it. When docked, a portable computer can function like a desktop, expanding the amount ports and adding a full size expansion card. A port replicator provides a complement of ports for connections, but does not add any other functionality, and would not allow the addition of another NIC card. A USB to RJ-45 adapter would allow you to add an extra physical NIC, but it requires the use of a USB port that, in this scenario, is not available. A USB to WiFi adapter would allow you to add an extra wireless NIC, but it requires the use of a USB port that, in this scenario, is not available.

Every time you connect your laptop to the USB docking station, the monitor also connected continuously flickers on and off. If you do not need to connect any additional full-size expansion cards, what is the best solution to solve this problem?

Connect the laptop to a proprietary port replicator.

You purchased a new Bluetooth speaker dock. How can you play music from your smartphone so that the audio is played through the speakers remotely?

Connect the smartphone to the speakers via Bluetooth.

Your ISP has cut off your service because you forgot to pay the bill. What can you do to connect your PC to the internet?

Connect your 4G smartphone to the PC and turn on USB tethering.

Your laptop's screen appears to be broken and does not display any picture, even though there are no visible cracks or breaks on the screen. What first step should you perform before replacing a laptop's screen?

Connect your laptop to an external display to verify that the problem resides in the screen and not another component. The first step when troubleshooting a laptop screen is to verify that only the laptop's screen is broken. You should check that the video card is good by using an external monitor. You would collect necessary tools to take off the laptop screen's frame, but only after you've decided it is a screen issue. You would likely not need to disconnect the laptop's hinge. However, if you did need to remove the hinge, it would be done after confirming that the problem is confined to the laptop's screen. It is a good idea to disconnect a laptop from all power sources before working on it, but this would be done after you've confirmed the problem is confined to just the laptop's screen.

You want to be able to cook while you talk to your friend on your smartphone, but you need both your hands free when doing so. What would be the best solution to accomplish this?

Connect your smartphone to a wireless headset via Bluetooth.

After troubleshooting you have determined you need to replace the system board in your laptop, and you feel this is a good opportunity to upgrade the CPU. Given this situation, which of the following would you need to do?

Detach the standoffs. When replacing the system board, you need to detach the stand-offs that hold the board to the chassis. If you want to upgrade the system board, you will probably also need to update the chipset driver (or notebook system software). This is not required when upgrading the CPU on a system board of the same model. If you want to upgrade the system board, you will probably also need to allow Windows to discover the new device using Plug-and-Play. This is not required when upgrading the CPU on a system board of the same model. You cannot simply install any CPU you want. The CPU is generally upgradeable so long as the new device is supported by the motherboard.

How can you get PRI/PRL updates pushed to your handset over a CDMA network?

Dial a special code. Usually PRI and PRL updates are pushed as an over the air update. To update you dial a special code (unique to each provider). Handsets are identified by a Mobile Equipment ID (MEID). Information that the cellular radio needs to connect to the network is provided as PRI (Product Release Instructions) and PRL (Preferred Roaming List) databases. Usually PRI and PRL updates are pushed as an over the air update. In some circumstances, they may need to be updated manually (for example, by a user that travels a lot). A handset might also have a SIM card to support roaming when travelling internationally as CDMA networks are not widespread outside the Americas.

If the internet goes down at your house, but you still have 4G on your smartphone, what can you do to provide internet access to your home computer if the computer does not have a wireless adapter?

Enable USB tethering on your phone from the settings.

You want to secure your smartphone that contains highly sensitive data. What would you NOT recommend if you wanted to prevent the data from being stolen?

Enforce single factor authentication.

Which of these are you NOT required to do when configuring an Exchange ActiveSync account?

Enter the domain name. Exchange is usually an integrated provider option and clients can autodiscover the correct settings. When manually configuring an Exchange ActiveSync account there is often a field for a domain but this is usually left blank. Exchange ActiveSync requires you to enter the email address and the user name (which is usually the same thing). Exchange ActiveSync requires you to enter a host address that you can obtain from the Exchange administrator. Most Exchange servers will require a password as well as whether to use Secure Sockets Layer (SSL) which protects confidential information such as the account password.

A user reports that their email client is failing to receive email and after a quick review of the issue, it appears to be an email decryption issue. What should you attempt to perform first as a workaround?

Help the user log into a webmail browser or attempt to access their email with a different email client. You should first attempt to log into the user's email using a webmail browser or other email client. This helps determine if the issue is with the email client or on the web server's side. It may be necessary to back up a user's email, delete their profile from the mail client, and reload the profile fresh, all within the email client, but this would not be a first step to troubleshooting this problem. A security setting change may be necessary to fix this issue, but it could be a variety of combinations of ports and settings. Sending additional emails is not the first step in troubleshooting this issue, nor would you likely need to send a plethora of test emails.

What type of non-proprietary email protocol would you use if you needed to access emails from multiple devices?

IMAP (Internet Message Access Protocol)

What is used by the GSM network to identify valid devices and can be used to stop stolen phones from accessing the network?

IMEI Under GSM (Global System for Mobile Communication), a handset is identified by an IMEI (International Mobile Station Equipment Identity). It is used by the GSM network to identify valid devices and can be used to stop stolen phones from accessing the network. An IMSI (International Mobile Subscriber Identity) number allows a SIM card that is registered to a particular user to be transferred between devices. CDMA locks the handset to the original provider and does not require any sort of SIM card. GSM works with a SIM (Subscriber Identity Module) card. Handsets in Code Division Multiple Access (CDMA) networks are identified by a Mobile Equipment ID (MEID). Information that the cellular radio needs to connect to the network is provided as PRI (Product Release Instructions) and PRL (Preferred Roaming List) databases.

What is the best option when replacing plastics or aluminum frames of a laptop?

If it is under warranty, send it to the manufacturer to get it repaired.

You have purchased an expensive new laptop for an end-user. What can you do to help prevent it from being stolen?

Install a Kensington lock.

You are installing a laptop at a customer service desk that is located in a busy customer area. What is the best way to prevent the laptop from theft?

Install a cable lock to chain the laptop to the desk.

You are setting up a laptop for an end-user. What is the best way to expand maximum connectivity and functionality of peripheral devices such as a full-size expansion card and dual display to the laptop?

Install a docking station with add-in card support.

When upgrading the touchpad on a laptop, what may you need to do to make it function properly?

Install a new driver If you are upgrading the keyboard or touchpad (rather than replacing the same part), you may need to install a new driver, and each physical part connects to the motherboard via a ribbon data cable. When upgrading the touchpad, you configure settings via the Mouse and Keyboard applets. You do not need to install a new operating system when upgrading the touchpad, but you would need to install a new driver. You do not need to configure the touchscreen settings when upgrading the touchpad, but you would need to configure touchpad settings.

When upgrading the keyboard in a laptop, what do you need to do to make sure the keyboard functions properly?

Install a new driver.

Everywhere you go you see people with very expensive smartphones with cracked screens and scratches and dents on their cases. What could you do to prevent the same from happening to your phone?

Install a rubber protective cover on your smartphone. Rigid or rubber protective covers mitigate the risk of dropping and damaging the phone. Some cases will also cover the display to protect the screen from scratches and cracks. A screen protector is a thin but tough film designed to provide extra protection for the display without compromising touch sensitivity. However, a screen protector will not prevent damage to other parts of the phone. Some cases can provide a degree of waterproofing. However, a waterproof case could be just a simple sealed plastic pouch that provides little protection from damage. While they are made from relatively tough components, no matter how careful you are, mobiles are still prone to damage from dropping, crushing, scratching, or immersion."

Why would you recommend an e-reader to someone who reads a lot of books and magazines?

It uses electrophoretic ink (e ink) technology. Unlike a tablet, an e-reader is designed for the sole purpose of reading digital books and magazines, and use electrophoretic ink (e ink) technology for easy reading. E-readers use Electronic Paper Display (EPD), whereas tablets use LED or OLED displays. Electronic Paper Display (EPD) has low power consumption but facilitates high contrast reading in a variety of ambient light conditions. In typical conditions e-readers do not need to use a backlight, which saves power and extends battery life. It is not unusual to get several days of usage on a single charge for these devices.

What would be helpful when typing in low light on a laptop?

Keyboard backlight

You are considering using an external keyboard with your laptop. What is the main difference between a laptop keyboard and a desktop keyboard?

Laptop keyboards are flatter than desktop keyboards and sometimes do not have dedicated Function (Fn) keys.

What can you do to troubleshoot an issue where a smart device is not able to get any Bluetooth connectivity?

Make sure Bluetooth pairing is enabled and try to reconnect.

Which Function key allows control over audio and video?

Media options

You are unable to connect to a new device via Bluetooth after repeated attempts. What do you do to troubleshoot the problem?

Move the devices closer together or change their relative orientations to each other. When a Bluetooth device won't pair after multiple attempts, you should move the devices closer together or change their orientations to each other for better connectivity. If you cannot connect a device, check that it has been made discoverable. You need to switch Bluetooth on to make the device discoverable and locate other nearby devices. You should not return your device to the manufacturer for repair without first trying to troubleshoot the problem. If you cannot add or use Bluetooth devices, check that the Bluetooth Support Service is running.

You are opening a new small business and you want to be able to make fast transactions with your customers when they come into the store. What technology should you implement to achieve this?

NFC mobile payment

Why has OLED not really established itself as a mainstream choice for laptop displays?

OLED is too expensive, draws too much power, and drains the battery too fast.

ou are a help desk technician responding to a ticket that states the user's laptop optical drive is no longer working. The user indicates that the drive is only used to exchange large files with another user who has poor network service. Which of these would be the most cost-effective and convenient solution to this help desk ticket?

Offer the user an external hard drive. Optical drives are of decreasing relevance to mobile computing. It is more cost-effective to use an external drive as a replacement. You might want to consider replacing an optical drive with a second hard drive. The hard drive must be fitted to a caddy that fits the optical drive bay. However, this option is not as convenient as an external USB hard drive. Optical drives are of decreasing relevance to laptops. The most cost-effective and convenient option would be to simply use an external hard drive instead. You usually need to replace the device with the same OEM part, or at least the same caddy design. An internal optical drive requires you to access the bottom panel, which is not very convenient.

Which of these are of decreasing relevance to mobile computing?

Optical drives

What type of email protocol would you use if you only needed to access emails from a single device?

POP3 POP (Post Office Protocol) will download the mail to the device, removing it from the server mailbox. Choose IMAP (Internet Mail Access Protocol) if you are viewing and accessing the mail from multiple devices. IMAP stores messages on the server and the client accesses the emails stored on the IMAP server. Note that Exchange doesn't use either POP or IMAP (though it can support them) but a proprietary protocol called Messaging Application Programming Interface (MAPI). Simple Mail Transfer Protocol (SMTP) is for outgoing mail servers for transferring mail via the internet between email servers and for sending email from a client.

What type of email protocol would you use if you only needed to access emails from a single device?

POP3 (Post Office Protocol) 110

What do you NOT need to take into consideration when replacing laptop speakers?

Remove the 3.5mm speaker jack from the motherboard.

When upgrading the system board with a Ball Grid Array, which of these steps would NOT be required to perform?

Remove the CPU.

What should you NEVER have to do when replacing or upgrading a cellular adapter?

Replace the screen.

Which of these is an outgoing email protocol?

SMTP (simple mail transfer protocol)

For maximum performance, what type of Double Data Rate (DDR) Synchronous DRAM (SDRAM) memory module should be used when upgrading RAM in a laptop?

SODIMM DDR4

You are purchasing new Android mobile devices for employees at a coffee shop for short range data transmission of credit card information. What is the best connection type for your end-users if they do not require the transfer of large amounts of data?

Short-range wireless connectivity such as Near Field Communication (NFC)

What devices can you pair together via Bluetooth to wirelessly transfer data?

Smart watches

Which of these devices uses IR to change the channel on your TV?

Smart watches Many smart watches include heart rate monitors via Infrared (IR) sensors, and IR sensors to operate devices such as TVs. Most smart speakers use Bluetooth technology to share data from the peripheral speaker to a host, such as a smartphone or tablet. Fitness monitors can include IR technology to monitor your heart rate, for example, but will not operate your television, because they focus on exercise and health data tracking. E-readers use Electronic Paper Display (EPD) and are designed for the sole purpose of reading digital books and magazines (with perhaps the option to add annotations, but interacting with your television is not one of them).

An end-user has complained about slow transfer speeds on a laptop and wouldn't mind sacrificing storage space for better speed and performance. In fact, the user wants to be able to transfer data on the laptop as fast as possible. What would you suggest upgrading to improve data transfer speeds?

Suggest a solid state drive SSDs are a type of mass storage flash memory that offers fast performance of data transfers. If cost is not a concern, but speed is, a SSD would be the best option. HDDs are an older technology than SSDs. HDDs are cheaper, but the end-user sacrifices the speed and performance of an SSD. While hybrid disks are a good compromise between storage and speed, hybrid disks are still not as fast as SSDs, and are more expensive than HDDs. RAM stores the instructions for the operating system of a device. Upgrading the RAM would not increase data transfer speeds like an SSD would.

You are replacing a non-functioning cracked touchscreen display on a laptop. However, after completely removing the touchscreen, you forgot how the existing unit was connected to the Graphics Processing Unit (GPU). In the future, how could you solve this problem?

Take pictures while you take the touchscreen apart.

After troubleshooting power problems, you notice the Direct Current (DC) socket on your laptop is damaged. What is a good skill you should learn if you want to replace the DC Jack in your laptop?

The DC jack can become loose or the jack itself can become separated from the motherboard. To replace it you have to de-solder and remove the old jack, then solder the new jack into place. Reading a multimeter is an important skill when testing an AC adapter but is typically not used when troubleshooting the DC socket. The first step when troubleshooting power problems is to test the outlet with a "known good" device (such as a lamp). However, replacing the outlet will not help in replacing the DC jack. An AC adapter is easily replaceable for a laptop. When replacing an AC adapter make sure it matches the make and model of the laptop.

No matter how long you leave it plugged in to a "known good" power outlet, when you unplug your laptop, it dies. During your troubleshooting, you clean the battery's contacts and make sure it is properly seated. When you replace the battery with a "known good" battery of the same model, it works fine. What can you determine is most likely the cause of the problem?

The battery has ended its useful life. If the battery will not hold a charge, it could be at the end of its useful life and will need to be replaced with a new manufacturer-recommended one. The battery is not only completely discharged, but also completely dead since it will not hold a charge no matter how long it is left plugged in to a power outlet. The power LED simply indicates when the laptop is running on battery power or when it is being charged. Replacing it will not fix this issue. You already tested with a "known good" battery and it fixed the problem. Therefore, an app is not the cause of the problem.

Users often purchase extra battery packs for their devices; however, there is a downside to having extra battery packs. What is the downside?

The battery packs also have to be charged. The negative aspect of battery packs is that they too must be charged, and often battery pack charging takes several hours to complete a full charge. As a battery ages, it becomes less able to hold a full charge. However, battery packs do not decrease a device's life expectancy. Portable charging banks provide a larger battery than is found in a typical phone. This allows the phone to be charged from the power pack two or three times before the power pack itself needs recharging. While it would usually void the warranty to completely disassemble a mobile device, there may be some circumstances in which you want to replace a part yourself. Using external battery packs do not void any warranties.

You are working as a graphic designer and are constantly waiting for images to load after making changes to the effects in the graphic editing software on your graphic design tablet. Of the listed choices, what is most likely the problem?

The computer is low on RAM.

You want to upgrade the old video card in a laptop to high-end dedicated graphics. Your goal is to turn it into a gaming machine to replace your desktop. What problems might you face when trying to accomplish this?

The laptop could over-heat.

Which of these is NOT a benefit of a mobile device?

The need for peripherals

You have noticed unintentional behavior from your tablet. For example, the tablet is autoconnecting to WiFi networks and hotspots without prompting you and the WiFi radio is turning itself on. What is most likely the problem?

There is a malicious app installed on the device. If you notice unintentional behavior however, such as connecting to a Wi-Fi network without prompting or the Wi-Fi radio turning itself on, suspect that a malicious rogue app has been installed. Any data passing over an access point can be intercepted, UNLESS it is protected by encryption (an HTTPS website, an SSL-enabled mail server, or a Virtual Private Network for instance). Bluebugging exploits a firmware flaw to allow an attacker to monitor and place telephone calls, not autoconnect to open WiFi hotspots. A Denial of Service (DoS) attack is where the signal from a hotspot or AP drops unexpectedly and the attacker tries to trick users into connecting to a rogue access point or "evil twin.

When would it may be necessary to enable Bluetooth on your smart device?

To connect to a printer

What is the purpose of a PIN code on a smartphone?

To implement access control It is imperative that a device be protected by a screen lock to help prevent an attacker gaining access to it. Access control can be implemented by configuring a password or PIN and screen lock in the device's settings. Access to a device should be protected by at the very least a PIN. A PIN is a type of authentication that helps protect against unauthorized access to a device and its resources. A password is more secure than a PIN, because a password can be more complex and longer. A PIN number is usually short and contains only numbers. Multifactor authentication means using two different methods. Even requiring a user to enter a password and then a PIN is not multifactor.

What purpose could jailbreaking a handset serve?

To prevent baseband updates to the handset A handset that has been jailbroken or rooted might be able to be configured to prevent baseband updates or apply a particular version manually. Radio firmware runs all of the radio functions available (cellular, Wi-Fi, and Bluetooth) as part of OS upgrades. If it is jailbroken, it can be configured to disallow updates. "Jailbreaking" and "rooting" mean circumventing the usual operation of the mobile OS to obtain super-user or root administrator permissions over the device. In the general course of things, although there is little reason to do so, jailbreaking can be used to configure updates or install a particular version.

What can you do on your laptop if your cursor jumps around the screen unintentionally?

Toggle off the touchpad Function key.

How do you easily dim a built-in laptop display?

Toggle the screen brightness Function key.

You are reading an article on a webpage on your hybrid. How can you lock the screen orientation from horizontal/landscape to vertical/portrait?

Toggle the screen orientation Function key. The screen orientation Function (Fn) key will allow you to choose whether to lock the screen in one orientation. The display Function (Fn) key toggles the video feed between the built-in laptop display, the built-in display and an external monitor (dual display), and an external monitor only. A touchpad toggle allows you to enable or disable the touchpad if it interferes with typing by causing the cursor to jump around. The media options Function (Fn) key allows control over audio and video playback, such as stop, pause, fast forward, and rewind controls or skipping between tracks.

How does toggling on airplane mode affect the Bluetooth adapter in a laptop?

Toggling on airplane mode disables Bluetooth.

What is the first thing you should do when troubleshooting sound issues from your Windows laptop speakers?

Try to turn the volume up.

What is the first thing you should do when testing the connection of a smartphone paired to Bluetooth headphones?

Try to use the device.

What is one thing you do NOT need to do to test a paired Bluetooth connection on a PC?

Turn airplane mode on.

A user brings you a new mobile device whose non-removable battery life is very short. The user does not use location services or spend any exceptional time watching videos or playing games. What do you advise the user do to prolong the device's battery life?

Turn off Bluetooth and cellular service and use Wi-Fi instead. In this case, the user can maximize battery life by turning off Bluetooth and cellular service when Wi-Fi is available to save power. Mobile devices are designed to work from battery power but can be plugged into building power via the charging cable and adapter. Vendors design their devices so that they will support "typical" usage for a full day without charging. While powering off a mobile device will help save battery life, if the mobile device has a charge, it is not necessary to power off the device when not in use. As the battery ages, it becomes less able to hold a full charge. If it is non-removable, the device will have to be returned to the vendor for battery replacement.

When taking a trip via an airplane, what is the best solution for your smart device when complying with airline regulations before take-off?

Turn the device off. Most airlines prevent flyers from using radio-based devices while onboard a plane, and some carriers insist that devices must be switched off completely at times such as take-off and landing. Airplane mode disables all wireless features on the device. While turning on airplane mode can comply with airline restrictions, some carriers insist that devices must be turned off during take-off. Disabling 4G on the smartphone will not disable other wireless features such as WiFi, GPS, Bluetooth and NFC, and therefore would not comply with airline regulations. Disabling WiFi on the smartphone will not disable other wireless features such as cellular data, GPS, Bluetooth and NFC, and therefore would not comply with airline regulations.

If you purchase a new Android-based device, what kind of connector would you use?

USB-C Brand new top-of-the-line mobile devices, such as tablets and laptops, are quickly adopting the USB-C connector as the standard for charging and connectivity. Micro-B USB connectors, while are Android-based and are very common, are quickly being replaced with the USB-C connector. Mini-B USB connectors and ports are found in older devices. Mini-B USB has since been replaced with Micro-B USB and the most recent USB-C connectors. Lightning connectors are a proprietary technology used in Apple devices only. They are convenient because they are reversible (can be inserted either way up).

You are going to a festival and you want to set up a booth and sell some things when you get there, but you want people to be able to purchase your wares by means other than cash. What is one solution for this?

Use a credit card reader attached to your smartphone. A credit card reader can be added to a mobile device which can enable vendors to take credit card payments without having a network cable connected to the credit card reader. You may have limited access to electricity and WiFi at a festival, so a computer may not be practical. A credit card reader connected to your tablet or smartphone would be a better choice. InfraRed (IR) sensors or "blasters" are not used for data connections and therefore would not allow payment transactions. There is no need to turn your smartphone into a mobile hotspot. If your smartphone has a cellular data plan and you are within 5 miles of a transmitter, it will connect to the internet and successfully make credit card transactions.

Your old smartphone will not hold a charge, and the battery is encased inside the phone. Which of the following is the best short-term solution to resolve this issue?

Use a portable charger.

Your old smartphone will not hold a charge, and the battery is encased inside the phone. Which of the following is the best short-term solution to resolve this issue?

Use a portable charger. Portable charging banks provide a larger battery than is found in a typical smartphone. This allows the phone to be charged from the power pack two or three times before the power pack itself needs recharging. As the battery ages, it becomes less able to hold a full charge. If it is non-removable, the device will have to be returned to the vendor if you want to replace the battery. Quick Charge (QC) adapters protect battery lifetime. While a QC adapter can prevent overcharging, it will not help a phone whose battery will already not hold a charge. Wireless charging (by induction) pads and stands can only supply up to 15W, and will not fix an old battery that will not hold a charge

In a conference room meeting, you want to share your screen with everyone in the room. You have connected your laptop to an external monitor, but you are still not seeing anything on the external display. How might you fix this?

Use the display function key.

How would you recommend an end-user communicate when connecting to a web conference on their laptop if the end-user does not have a telephone handy?

Use the microphone on the laptop if there is one installed.

You find that your Global Positioning System (GPS) service on your Android device is not functioning, which makes using map programs impossible. How do you troubleshoot this problem?

Verify that app-specific location services are enabled. Individual apps have their own location services settings and you should verify that they are enabled for the apps that use GPS. You can boot an Android device to Safe Mode by tap-and-holding the "Power Off" message. Safe Mode disables third-party apps but leaves core services running. A factory default reset removes all user data, apps, and settings. The device will either have to be manually reconfigured with a new user account and apps reloaded or restored from a backup configuration. This is not necessary when first troubleshooting your GPS service. A hard reset, powering the device off by holding the Power button for a few seconds, can resolve many software-related issues on a mobile device. However, you should first verify that app-specific location services are enabled.

Which of these is a NOT good way to send data securely on a device?

Via a free open public hotspot

In the past, you have connected to potentially dangerous open WiFi access points (APs) that your laptop automatically connects to. If you do not need any wireless connection, what is the easiest way to completely disable all wireless functions to prevent the laptop from ever connecting to these APs?

You can toggle the airplane mode function key to completely disable all wireless functions, thus preventing your laptop from connecting to any access points that you do not trust. If you must disconnect from the AP, that means your laptop has already connected to it. For complete prevention from connecting to any potentially nefarious WiFi, you would want to toggle on airplane mode. Some adapters will combine both WiFi and cellular data connectivity. However, each of these settings might be separately configurable or be selectively disabled via different toggle states and indicators. Physical Kensington locks only help prevent laptops from theft, but do not provide any security from potentially malicious access points

What is the easiest way to quickly turn off the Wi-Fi adapter on your Windows laptop?

You can toggle the radio for Wi-Fi, Bluetooth, cellular data, and/or Global Positioning System (GPS) on and off with the radio function key. Built-in adapters are Field Replaceable Units (FRU) and can be accessed easily by removing a screw plate on the back cover (underside) of the laptop. However, it is easier to simply toggle the radio function key. Although you can disable the wireless adapter(s) in the Windows Network Connection settings, it is easiest to simply turn the wireless off with the radio function key. USB to Wi-Fi adapters might be used to upgrade to a better Wi-Fi standard than the laptop's built-in adapter.

An end-user has purchased a new Bluetooth speaker, but the end-user's older laptop does not have a Bluetooth adapter. What would you need to install to connect music playing from the laptop to the Bluetooth speaker?

You would need to install a M.2 adapter. A Bluetooth Mini PCIe or M.2 adapter would provide Bluetooth connectivity, and allow the end-user to play music from the laptop to the speaker. Note that you may need to install a new antenna kit. An AC adapter converts Alternating Current (AC) to Direct Current (DC) and acts as the power supply to the laptop. WiFi adapters are also referred to as a Wireless LANs (WLAN) cards. WLAN operates on the 802.11 wireless standard, whereas Bluetooth does not. It should be noted that some wireless adapters will provide some combination of WiFi, Bluetooth, and/or 4G connectivity. Laptop graphics adapters are often integrated as part of the CPU, but are used for displaying video, not audio. Few laptop CPUs are upgradable, though they may be replaceable.

You are traveling on the road and you forgot your mobile hotspot at home. You need to pull over and check your business email on your laptop. What could you do to gain access to it on the laptop?

smartphone laptop

When replacing a 1.8" hard disk drive in a new laptop, what type of connector would you most likely need to use?

uSATA 1.8" form factor hard disk drives often require the use of the uSATA, also known as Micro SATA, connector. These are typically found inside portable devices such as laptops. Most 2.5" and 3.5" magnetic and hybrid hard drives use ordinary SATA data and power connectors, but 1.8" hard drives are smaller and require the uSATA connector. Parallel ATA (PATA) is an older HDD technology, and has been replaced by SATA and uSATA connectors. Molex is an older technology and has since been replaced with 15-pin SATA power connectors.