Chapter 23: Portable Computing / Chapter 24: Understanding Mobile Devices / Chapter 25: Care and Feeding of Mobile Devices (A+ Study Notes)

A+

Study Notebook

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You can find my complete study notes in Google Docs format below: https://docs.google.com/document/d/1zcKLWfsns1tqzmXtVRJbcd9NqfaEcjifgIo-oJIbEgc/edit?usp=sharing

References:
M. MEYERS, 2019.  CompTIA A+ All-in-One Exam Guide. 10th ed.

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Chapter 23: Portable Computing / Chapter 24: Understanding Mobile Devices / Chapter 25: Care and Feeding of Mobile Devices

• Laptops
• Mobile Devices
• Mobile connections:
• Mini USB 
• USB C
• Lightning Cable
• Thunderbolt
• Wireless
• Near Field Communication (NFC) 
• Bluetooth
• Infrared (IR)
• Hotspot /Tethering
• Airplane Mode
• Virtual Reality (VR)
• Augmented Reality
• CDMA phones (code division multiple access)
• Firmware updates
• Baseband updates
• Broadband updates
• Wireless updates
• Preferred roaming List (PRL) - this might need to be updated only when your internet is running slow, connect slowly etc. 
• GSM (Global System of Mobile Communications)
• Come with a simcard
• IMSI (International Mobile Subscriber Identity) - defines critical SIM information
• IMEI (International Mobile Equipment Identity) - defines the phone
• Usually when you get a new phone, providers simply connect your new IMEI to your IMSI. 
• VPN (Virtual Private Network)
  
• Email setup:
• 1. FQDN (Fully Qualified Domain Name) of SMTP server
• 2. Username & password
• 3. Port number for an SMTP
• 4. FQDN (Fully Qualified Domain Name) for IMAP server 
• 5. Username & password
• 6. Port Number for IMAP (port 143)
• Encrypted emails (SSl | STARTTLS) - which enables point to point encryption (P2PE) 
• POP3 encrypted port: 995 
• IMAP encrypted port: 993
• SMTP encrypted port: 465 or 587
• S/MIME (Secure /Multipurpose Internet Mail Extensions) - attachments in email - takes binary file and its every 8th bit and turns it into ASCII code. 
• Certain email apps encrypt everything inside of it by default: E.g. Proton mail, Google, Yahoo
• Mobile synchronization
• Synchro to desktop
• Synchro to automobile
• Synchro to Cloud
• Android syncs to Google Drive. iOS syncs to iCloud
• Browser synchronisation
• We can also sync location services, ebooks, social media and other applications
• Mobile security:
• Bring Your Own Device (BYOD) - IT assets belong to the company not the individual
• Profiles (collection of configuration and security settings that an administrator has created in order to apply hose settings to particular categories of users or devices):
• MDM (Mobile Device Management) / Apple Configurator 
• Profiles are usually written in XML (eXtensible Markup Language) 
• Combat Malware with Antivirus on Android. Patches on iOS.
• Multifactor Authentication; Biometric Authentication; Authentication Apps;
• Trusted Apps/ Untrusted Apps
• Firewalls
• Network Attacks:
• Device Security Settings
• Apply manually or use MDM profile
• User Training
• Wi-fi Analyzer
• Cell tower Analyzer
• App Security
• Anti-malware and App Scanners