JNTU
JNTU MCA 2018 MOBILE COMPUTING Previous Question Paper (June/July - 2018 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
What are the services of ICAP servers?
Answer
The Internet Content Adaptation Protocol (ICAP) is a lightweight protocol used to extend transparent proxy servers by offloading content adaptation tasks to dedicated servers. Its primary services include: 1) Virus Scanning: Real-time scanning of incoming web content for malicious software. 2) Content Filtering: Blocking or modifying web content based on organizational policies or parental controls. 3) Language Translation: Automatically translating web pages into different languages. 4) Content Transformation: Compressing images or transcoding media files to optimize bandwidth for mobile devices.
What are the applications of 3G?
Answer
3G technology provides high-speed data transmission, enabling several key applications: 1) Mobile Broadband: High-speed internet access for web browsing and file downloads. 2) Video Telephony: Real-time face-to-face communication. 3) Mobile TV and Streaming: Access to multimedia content, live broadcasts, and on-demand video services. 4) Location-Based Services: Enhanced GPS-based navigation and tracking. 5) Mobile Commerce: Secure financial transactions, mobile banking, and online shopping.
Explain about the different types of wireless LANs.
Answer
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Explain how multimedia handled in Windows CE.
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Write brief notes on IP multimedia systems.
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Part B
Explain about the different types of multiplexing techniques.
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Describe the protocol stack of Blue tooth with neat sketch.
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Explain the system architecture of GSM with neat sketch.
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Explain about the Wireless Session Protocol.
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Explain about the short message mobile terminated with neat sketch.
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Explain about the MVC in Symbian.
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Describe about the communication in Palm OS.
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Explain the different types of securities in MIDP.
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Differentiate between SIP and H.323.
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What are the key components of Next Generation Networks.
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Explain the properties of transport layer security handshake protocol.
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Describe the standards of Public Key Cryptography.
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