MC Exam SS 2011

Mobile Computing

• Why radio cells should be smaller?
• Ad= 0, Ak=010011. What is the signal which will be translated through air. (It means find out As with CDMA coding)
• What is difference between OFDM and FDM (Advantages and disadvantages)

GSM

• How can bi achieved incoming call via using GSM.
• How GPRS use channels
• What is the 2 new features which used in UMTS and LTE.

Satellite

• Compare LOE,MEO, GEO for using TV Broadcasting, GPS and Satellite Telephony
• What is triangulation mechanism?
• Why doesn't meter the mass of satellite?

Mobile IP

• How can be achieved the problem of triangulation roating.
• Why Snooping mechanism usable for Mobile devices? Main advantages?
• Explain the main idea and advantages of IP-in-IP encapsulation.

Mobile Application

• Give an example of Technical Context, Social Context and Physical Context.
• What is Activity in Android?
• Explain difference between Semantic and Syntactic XML-based approach (or smthg. like that)