JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MCA 2018 MOBILE APPLICATION DEVELOPMENT Previous Question Paper (January - 2018 - R13)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 8 marks and may have a, b, c as sub questions.
Part A
What are the limitations of Radio transmission.
Answer
Radio transmission is subject to several limitations:
- Interference: Susceptible to electromagnetic interference from other electronic devices and atmospheric conditions.
- Security: Signals are broadcast over the air, making them vulnerable to eavesdropping and unauthorized interception.
- Bandwidth Constraints: Limited frequency spectrum availability restricts data transmission rates compared to wired media.
- Signal Attenuation: Radio waves lose strength over distance and are easily blocked or reflected by physical obstacles like walls and buildings.
What are the attributes of Java Application Descriptor File?
Answer
The Java Application Descriptor (JAD) file contains essential metadata for J2ME applications, including:
- MIDlet-Name: The name of the application.
- MIDlet-Version: The version number of the application.
- MIDlet-Vendor: The name of the developer or organization.
- MIDlet-Jar-URL: The location of the associated JAR file.
- MIDlet-Jar-Size: The size of the JAR file in bytes.
- MIDlet-1: Defines the main class, icon, and name for the application entry point.
Explain the steps required to create an instance of a TextField class.
Answer
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Explain the methods used in the Prepare Statement.
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Explain how to read the data from HTTP connection?
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Part B
Explain about the Cellular Telephone Networks.
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Explain about the personal Digital Assistants.
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Explain about the architecture of J2ME.
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Discuss the minimal hardware and software requirements to run a J2ME application on a small computing device.
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Write a Midlet program to draw a mutable image on the canvas.
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Write a Midlet program to two radio buttons, each represents a gender and then prompts the user to select one or the other gender. After making a selection the user clicks the process command, causing the Midlet to read the selected redio button and display the label of the radio button on the form.
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Write a Midlet program to read and write a record from the record store is displayed in the alert dialog.
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Explain the steps involved to create the association between the database and the JDBC/ODBC bridge.
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Explain the session management techniques.
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Discuss the connection steps of generic connection framework in detail.
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