networking
2.1compare and contrast transmission control protocol (TCP) and user data protocol (UDP) ports, protocols, and their purposes.
- ports and protocols
- 20/21 - file transfer protocol (FTP)
- 22 - secure shell (SSH)
- 23 - telnet
- 25 - simple mail transfer protocol (SMTP)
- 53 - domain name system (DNS)
- 67/68 - dynamic host configuration protocol (DHCP)
- physical privacy and security components
- biometrics
- near-field scanner features
1.2
compare and contrast the display components of mobile devices.
- types
- liquid crystal display (LCD)
- in-plane switching (IPS)
- twisted nematic (TN)
- vertical alignment
- organic light-emitting diode (OLED)
- mobile display components
- WiFi antenna connector/placement
- camera/webcam
- microphone
- touch screen/digitizer
- inverter
1.3
given a scenario, set up and configure accessories and ports of mobile devices.
- connection methods
- universal serial bus (USB)/USB-C/microUSB/miniUSB
- lightning
- serial interfaces
- near-field communication (NFC)
- hotspot
- bluetooth
- accessories
- touch pens
- headsets
- speakers
- webcam
- docking station
- port replicator
- trackpad/drawing pad
other info
completion of this exam is equivalent to 12 months of hands-on experience working in a help desk support technician, desktop support technician, or field service technician job role