What is Bluetooth and What are A2DP and EDR?
What are GSM & CDMA?
Types of Form Factors in Mobile Phones
Explanation of Various Networks used in Mobiles
What is Memory Card Slot & its Types?
What is GPS & aGPS?
What is GPRS & EDGE? What are APN & UMTS
Types of Displays in Mobile Phones
What is CPU & GPU
Commonly Used Mobile Operating Systems
What is LTE or 4G Network? What is its Speed?
Usage and Availability of LTE or 4G Networks