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I. Study Guide: May 2, 2004
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A. General Guideline:

1. Study the summary in each chapter.
2. Study the lecture notes.
3. Study the study guide.
4. Study the previous exams.
5. Study the homeworks.
6. Study the textbook.
7. Do the exercises.

B. Review for the Final:

1. Understand the basic terminologies.
2. Understand IEEE 802.11 and Bluetooth
3. Understand Mobile IP, DHCP, and Mobile ad-hoc networks
4. Understand TCP improvements in wireless and mobile envrionments 
5. Understand WAP, i-mode, SyncML, and WAP 2.0 

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II. Sample Questions:
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A. Multiple Choice Questions:

(B) 1. Which is not the advantage of WLANs?
       (A) flexibility (B) lower quality of servcie 
       (C) easy planning (D) robustness

(D) 2. Which is not the disadvantage of WLANs?
       (A) proprietary solutions (B) restrictions
       (B) safty and security (D) none of the above

(A) 3. Which is the main disadvantage of infra red transmission?
       (A) low bandwidth (B) high cost 
       (C) complex devices (D) none of the above

(C) 4. In a typical WLAN configuration, what is a transmitter/receiver
       (transceiver) device called? 
       (A) terminal (B) network interface card
       (C) access point (D) antenna

(A) 5. Through what do end users access the WLAN?
       (A) wireless LAN adapters (B) PDAs
       (C) JavaScript code (D) wireless routers

(C) 6. Which typically buids a ad-hoc network?
       (A) IEEE 802.11 (B) HiperLAN2 (C) Bluetooth (D) DECT

(D) 7. What data rate is IEEE 802.11 WLAN up to?
       (A) 2 (B) 10 (C) 11 (D) 54 MB

(B) 8. In which mode do mobile terminals build the network by themselves?
       (A) WMAN (B) ad-hoc (C) point-to-point (D) access point

(C) 9. What is the freqency range used currently for most enterprise-class
       unlicensed transmissions, including 802.11b?
       (A) 900 MHz (B) 1.8 GHz (C) 2.4 GHz (D) 5 GHz

(B) 10. Which band does ISM use?
       (A) 5 GHz (B) 2.4 GHz (C) 1.8 GHz (D) 900 MHz 

(C) 11. What data rate doesn't 802.11b support?
       (A) 2 (B) 5.5 (C) 10 (D) 11

(A) 12. What is the speed of an IEEE 802.11a WLAN up to?
       (A) 54 Mbps (B) 60 Mbps  (C) 100 Mbps (D) none of the above

(C) 13. What data rate doesn't 802.11g support?
       (A) 18 (B) 24 (C) 42 (D) 54

(D) 14. Which defines the enhanced security mechanisms for WLAN?
       (A) 802.11f (B) 802.11g (C) 802.11h (D) 802.11i
 
(B) 15. Which has the farthest operation range?
       (A) 802.11a (B) 802.11b (C) Bluetooth (D) DECT

(D) 16. Which is not the scenario where WPAN or Bluetooth can be used?
       (A) connection of peripheral devices
       (B) support of ad-hoc networking
       (C) bridging of networks
       (D) none of the above

(A) 17. In which band the Bluetooth transceiver operates? 
       (A) 2.4 GHz (B) 1.9 GHz (C) 5 GHz (D) none of the above

(B) 18. How many channels does Bluetooth support?
       (A) 24 (B) 79 (C) 78 (D) none of the above

(B) 19. How many bits of a worldwide unique identifier does a Bluetooth 
        device has?
       (A) 32 (B) 48 (C) 64 (D) 128

(A) 20. How many bits does an active member address (AMA) in Bluetooth 
        require?
       (A) 3 (B) 4 (C) 6 (D) 8

(D) 21. How many bits does an parked member address (PMA) in Bluetooth 
        require?
       (A) 3 (B) 4 (C) 6 (D) 8

(B) 22. Which is used to seperate two Bluetooth piconets?
       (A) FHSS (B) FH-CDMA (C) DSSS (E) OFDM 
 
(D) 23. What are multiple piconets with overlapping coverage called?
       (A) multinets (B) m-piconets (C) multi-piconets (D) scatternets
      
(C) 24. The two link types supported by Bluetooth are:
       (A) SCO and SCO-A (B) ACL and ACL-S (C) SCO and ACL (D) none of the above

(A) 25. Which kind of the link is the SCO?
       (A) point-to-point (B) point-to-multipoint 
       (C) multipoint-to-multipoint (D) multipoint-to-point

(C) 26. Which is the standard for WPAN?
       (A) 802.3 (B) 802.11 (C) 802.15 (D) 802.16

(D) 27. Which is not the reason why the reverse tunnelling is required?
       (A) firewall (B) multicast (C) TTL (D) none of the above

(D) 28. Which is not a mechanism for IP micro-mobility support?
       (A) Celluar IP (B) HAWAII (C) HMIPv6 (D) none of the above

(D) 29. Which is not a distributed file system?
       (A) Coda (B) Little Work (C) Ficus (D) CORBA

(B) 30. Which group is Wireless Application Protocol 
       (A) WAP Consortium (B) WAP Forum (C) CCITT (D) IEEE

(A) 31. What programming model is the WAP programming model similar to?
       (A) WWW (B) OSI (C) electromagnetic spectrum (D) none of the above

(C) 32. Which layer protocol is WTP?
       (A) application (B) presentation (C) session (D) transport

(B) 33. What is WML similar to?
       (A) HTTP (B) HTML (C) FTP (D) none of the above

(C) 34. Which language is used to describe pages in i-mode?
       (A) WML (B) XML (C) cHTML (D) DHTML

(D) 35. Which layer protocol is WAE? 
       (A) transport (B) session (C) presentation (D) application 

(A) 36. What is WCMP similar to?
       (A) ICMP (B) DNS (C) RARP (D) none of the above


B. Question and Answer:

1. Define the following:

  A. PLCP
  B. L2CAP
  C. SDP
  D. WPAN
  E. COA
  F. DHCP
  G. WDP
  H. WTLS
  I. WTP
  J. WSP
  K. WAE
  L. WAP
  M. WCMP
  N. WML
  O. WMLScript
  P. WTA
  Q. i-mode
  R. SyncML
 

2. Based on the frequency, the modulation, and the transfer rate compare 
   802.11b and 802.11g.

3. What is a Bluetooth piconet? Describe 4 types of devices specified in 
   a piconet. 
   How a piconet is formed? What is a Bluetooth scatternet? Describe
   two types of link offered by Bluetooth.

4. Describe how mobile IP works.

5. Describe the machanism, advantages, and disadvantages of indirect TCP,
   snooping TCP, and M-TCP respectively.

6. Describe the WAP componets in transport, security, transaction, session,
   and application layer respectively.

7. What is WAE? List at three technolgies that WAE has integrated. What is
   the goal of WAE? Describe the WAE logical model.