Page 96 - DCAP512_WAP_AND_WML

WAP & WML

Notes DECT: Digital European Cordless Communication
ECC: error-correcting code
GSM: Global System for Mobile communications
Hot Spot: A hot spot is a “clickable” area on screen that directs navigation or other actions

PCS: Personal Communication Service
SMS: Short Message Service
TDMA: Time Division Multiple Access

6.9 Review Questions

1. How do you create links in WML? Explain different varieties of links.
2. Examine what are templates? How do you use them explain with appropriate example?
3. Explain how hot spots can be used to link users to files on the web?
4. Explain how hot spots can be used to link one card to the other?
5. Anchor links enable the navigation between different WML cards. Comment.

6. The protocol used in WML URLs is HTTP. Explain.
7. The WAP specification states that the user interface element may be a softkey, a function
key, a voice-activated command, etc. Discuss.

8. WAP is based on a scalable-layered architecture, each layer can develop independently of
the others keeping WDP constant. Explain with a example.
9. If a label is too long, it may be truncated on some wireless devices. Do you agree with this
statement? Why or why not?
10. Substantiate the core elements of a WML deck? Explain each element with its purpose.
11. The limited memory on most devices constrains the deck size, usually to less than 1024
bytes. Comment.

Answers: Self Assessment

1. anchor 2. <card>
3. <go> 4. Href

5. “clickable” 6. #
7. <do> 8. user interfaces
9. wireless device. 10. <prev>
11. ACCEPT 12. binary transmission

13. hyphen 14. “nowrap”
15. is

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