Answer the following problems.

problem 1) Why has a scripting language been added to WML? How can this language help saving bandwidth and reducing delay?

problem 2) What are the main benefits of spread spectrum system? What are the advantages of DSSS over FHSS?

problem 3) Describe logical reference model of location services?

problem 4) What is reverse tunneling? Why it is needed?

problem 5) prepare down the advantages and disadvantages of Mobile TCP?

problem 6) Describe following optimizations:

i) Fast Retransmit/Fast Recovery.

ii) Transaction oriented TCP.

problem 7) What are the features of WSP/B?

problem 8) What are the constraints possible on Text Box?

problem 9) What are the various identifiers associated with mobile stations in GSM? Why these identifiers are required?

problem 10) Describe cellular IP with its advantages and disadvantages.