wireless networks sample question

Part 1. Basics

Two drawbacks of a cellular topology are ___________________
An ad hoc network consists of _______
Access points for a WLAN mostly use antennas whose radiation patternsare described as ________
Eavesdroppers on FHSS communications hear __________
Part 2. Telephone Systems
Where is an "always-on" device needed?
A transmitter run by the carrier is called a ____
What are the two components of a GSM mobile station?
Four advantages of CDMA over GSM are ___
Three design considerations for cordless standards are1.2.3.
DECT & PWT have a transmission rate around ___ Mbps

Part 3. Wireless Data
Two service types in SMS are named ___
SMS point to point messages are supervised by the ___
To find out if it has moved, a mobile node uses the process of ___

Part 4. Programming Handsets
What are three limitations of mobile handsets?
What are the two main branches of J2ME?
A standard package imported by midlets is named ____

Part 5. Wireless LANs
The maximum data rates provided by 802.11a, 802.11b, and 802.11g are___
A DSSS channel has a bandwidth of ___ MHz and can carry up to ___ Mbps.
FHSS [is / is not] commonly used, because ___.
A control frame to advertise a WLAN is named a ___ frame.


Part 6. Personal Area Networks
The connection modes of Bluetooth are named ___
Bluetooth devices start in the ___ state.
A piconet can have up to ___ active slaves.
The only PAN with designed-in quality of service is ___and achieves QoS by using ___ packets as does ___ .