📚 CompTIA A+ Tips - Chapitre 10 🔄 Revision

💡 A+ Exam Tips : Mobile Devices

Relis d'abord ces points que le livre lui-meme signale comme importants pour l'examen ("A+ Certification Exam Tips"). Puis reponds au QCM pour verifier que tu as vraiment compris de quoi il s'agit - pas juste memorise les mots.

  1. Be able to explain the difference between Android, Chrome OS, iOS, and iPadOS on mobile devices. (p. 461)
  2. Be able to identify, describe the purpose of, and replace/install and configure hardware components including batteries, keyboards or keys, RAM, hard drives, SSD, styli, headsets, speakers, webcams, trackpads, drawing pads, and wireless cards, as well as security components such as biometric and NFC devices. (p. 461)
  3. Know that each app has configurable settings that might need to be adjusted. Be able to configure business apps that deal with email and cloud storage. Be able to synchronize data specifically for the calendar and contacts. (p. 461)
  4. Know the difference between a docking station and a port replicator. (p. 461)
  5. Watch a few videos on laptop disassembly and digitizer replacement. (p. 461)
  6. Be able to describe the difference between the inverter and digitizer. Go back to Chapter 8 to review the different types of displays and attributes, including LCD, OLED, TN, IPS, and VA. Know how to replace the Wi-Fi antenna, webcam, and microphone. (p. 461)
  7. Study how to configure and connect via USB, Lightning, NFC, hotspot/tethering, Bluetooth, GPS, cellular (3G, 4G, 5G), and Wi-Fi. Know what information is needed for corporate email configuration, two-factor authentication, and corporate apps. Be able to sync Microsoft 365, ActiveSync, calendar, contacts, and any other commercial mail app. Know that Airplane Mode disables Bluetooth, cellular, and Wi-Fi communications and also preserves battery life. Right before taking the exams, use an Android simulator or practice on Android, iOS, and Windows device configurations. Know that bandwidth throttling might be implemented on wireless networks and may affect those who are streaming video, creating a hotspot, or using tethering. (p. 461)
  8. A cell phone requires an NFC chip in order to use the mobile pay feature. Be able to recognize and repair NFC issues. (p. 461)
  9. Realize that quick battery drain could signal more than just a battery that needs to be replaced. Check for running apps, brightness levels, and open communications (Bluetooth, cellular, Wi-Fi, GPS, and so on). (p. 462)
  10. Review the types of things you might control with function keys. Know that you might use these keys to solve problems such as erratic mouse (or touchpad) actions and display output. (p. 462)
  11. Review corporate and BYOD device configurations, MDM, policy enforcement, and how corporate apps are handled. (p. 462)
  12. Know the difference between a SIM and eSIM and how to install one. (p. 462)
  13. If you can't easily reattach a cell phone back, check for a swollen battery. (p. 462)
  14. Know that Android devices synchronize to the cloud by default. Know that iTunes can be used to back up/restore an iOS device. Know that OneDrive is used to access saved attachments from Microsoft Outlook. Configuring a mobile device to use an email account enables synchronization of associated data, such as calendars and contacts. (p. 462)
  15. Know the purpose of mobile device security measures, including screen locks (facial recognition, PIN, fingerprint, pattern, swipe), remote wipe, locator app, OS update, encryption, remote backup, and antivirus/anti-malware. (p. 462)
  16. Be able to configure security settings on Android, iOS, and Windows devices. (p. 462)
  17. If you cannot connect to a wireless network, see if there are multiple networks in the area and select one. Note that a wireless network might need to be 'forgotten' so that you can reattach with an updated password or just reassociate if internet connectivity is unavailable. (p. 462)
  18. Review how to troubleshoot security situations including APK, developer mode, root access/jailbreaking, unauthorized or malicious apps, and app spoofing. Also know that symptoms of security issues include an increase in network traffic, slow response times, data usage alerts, limited internet connectivity, a lot of ads, fake security warnings, unusual app behavior, and leaked files or data. (p. 462)
  19. Be able to troubleshoot connectivity, liquid damage, overheating, digitizer and screen issues, ports, malware, cursor drift, and touch calibration. (p. 462)
  20. Read and reread all the troubleshooting scenarios in the chapter. Troubleshooting mobile devices is a part of both the CompTIA A+ 220-1201 and 220-1202 exams. (p. 462)

QCM tricky sur ces tips

Q1. Which TWO of these mobile operating systems are open source?

Q2. According to the exam tips, which pair of components is specifically called out as 'security components' you should be able to identify and replace?

Q3. The exam tips say you should specifically be able to synchronize which two types of data?

Q4. A colleague claims a docking station and a port replicator are basically identical. What is the key distinction the exam tips want you to know?

Q5. What is the key functional difference between a laptop's inverter and its digitizer?

Q6. Which of the following is NOT disabled when a mobile device is put into Airplane Mode?

Q7. Bandwidth throttling on a wireless network would most likely be noticed by a user who is:

Q8. A user wants to pay for groceries by tapping their phone at checkout (mobile pay), but it does nothing. Nothing else about the phone seems wrong. What is most likely missing or turned off?

Q9. A phone's battery drains much faster than it used to. Before assuming the battery itself has failed, what should be checked first?

Q10. Besides multimedia playback, what else can a laptop's special function (Fn) keys help you troubleshoot?

Q11. In a BYOD environment, which technology is used to enforce company policy and manage corporate apps on an employee's personal device?

Q12. What is a key practical advantage of an eSIM over a traditional physical SIM card?

Q13. After a repair, a technician struggles to snap a phone's back cover into place again. What should be checked first?

Q14. Which statement about default mobile backup/sync behavior is correct, according to the exam tips?

Q15. Which of these is NOT one of the mobile device security measures the exam tips list?