Mobile Computing (Practice Quiz)

Which of the following is the world’s first cellular system to specify digital modulation and network level architecture?

• GSM

• AMPS

• CDMA

• TCP/IP

Which of the following subsystem provides radio transmission between mobile station and MSC?

• BSS

• NSS

• OSS

• BSC

The process of transferring a mobile station from one base station to another is

• Mobile Switching

• Roaming

• Hand off

• Forward channel

DSSS Combines data signals directly with ______ bitrate sequence called ______.

• Higher , Pseudo Frequency

• Higher , Pseudo Noise

• Lower , Pseudo Frequency

• Lower , Pseudo Noise

GSM Services are broadly divided in to

• Tele-Services

• Bearer Services

• Supplementary Services

• Internet Services

MSC Consists of

• HLR

• VLR

• SIM

• EIR

The advantages of satellite communication over terrestrial communication are ...

• The coverage area of a satellite is larger

• Transmission cost of a satellite is independent of the distance from the center of the coverage area

• Satellite to Satellite communication can cover a long distance at low cost

• Satellites are easy to deploy in orbit .

LEO Satellite orbit range is

• 500 - 1500km

• 1000-2000km

• 2000-2500km

• 2500-3000km

Wireless mobile communication having the following issues compared to wired communication

• Near Far Terminal problem

• Hidden/Exposed Terminal problem

• Over/under utilized Terminal problem

• Hide/Seek Terminal Issue

Types of mobile handoffs

• Soft Handoff

• Moderate Handoff

• Medium Handoff

• Hard Handoff