BT0087, WML and WAP Programming-Theory

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[ FALL 2015 ] ASSIGNMENT

PROGRAM	BSc IT
SEMESTER	FIFTH
SUBJECT CODE & NAME	BT0087, WML and WAP Programming-Theory
CREDITS	2
BK ID	B1182
MAX. MARKS	30

Note: Answer all questions.

Q1 Draw and explain in brief the wireless application protocol (WAP) architecture.

Answer: The Wireless Application Protocol has become the standard for communication between server applications and its clients.  That is exactly what the Wireless Application Protocol is; for example, WAP is used as a standardized method so that a cellular phone can talk to a server among the cellular network that it belongs to.  Because WAP has become so global, it no longer is bounded by the means of the cellular market.  WAP has become the link of the Internet to the Mobile World, bridging a gap between two of the top industries of the world.

Q. 2. Describe the various data types available in WML script.

Answer:Like JavaScript, WMLScript is weakly typed. WMLScript has only one type of variable, which is var. However, WMLScript variables are actually handled as five primitive data types internally. A variable can be used to store a value of any of the five primitive data types. The data types supported in WMLScript are:

1. Boolean. A Boolean value can be true or false.

Examples:

Q. 3. Briefly explain the WML external functions with an example.

Answer:In WMLScript, all code must be encapsulated in functions. This is different from JavaScript in which a web developer can choose whether to place the code in functions or directly in the markup. A function in WMLScript is defined using the following format. The parts enclosed inside brackets [] are optional.

[extern] function function_name([argument1,

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