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M.TECH. DEGREE EXAMINATION Branch: Computer Science and Engineering Specialization : 1. Computer Science and Engineering, 2. Information Systems Model Question Paper - II Second Semester MCSCS 202/ MCSIS 202 ADVANCED DATABASE SYSTEMS (Regular – 2011 Admission onwards) Time: Three hours Maximum: 100 Marks Answer all questions. Each carries 25 marks. 1 a) What are the different methods for join operation in a parallel database? (8 marks) b) Explain the different methods adopted by a distributed lock manager. (8 marks) c) With a neat diagram explain the Three-tier client server architecture. (9 marks) Or 2 a) With examples, explain the inter and intra query parallelism (8 marks) b) How is concurrency control done in a distributed database? (8 marks) c) Explain the different server system architectures. (9 marks) 3 a) Explain the concept of object identity, object structure and type constructors. (8 marks) b) List the basic operations of the following built-in interfaces of the ODMG model : Object, Collection, Iterator, Set, List, Bag, Array and Dictionary. c) Explain the object relational features in SQL. ( 8 marks) ( 9 marks) OR [P.T.O] 4 a) What are the differences and similarities between objects and literals in the ODMG object model ? (8 marks) b) Describe the built-in structured literals of the ODMG object model and the operations of each. (8 marks) c) What is OQL?. Write the syntax of OQL. 5 a) What is tuple versioning? How is it done in relational databases? (9 marks) (8 marks) b) How do spatial databases differ from regular databases? (8 marks) c) What are triggers? Explain with an example. (9 marks) Or 6 a) Explain the XML Hierarchical (Tree) Data model (8 marks) b) Explain XML schema with an example. (8 marks) c) Write notes on geographic information systems. (9 marks) 7 a) What do you mean by location and handoff management? (8 marks) b) How is concurrency control done in mobile databases? (8 marks) c) Explain mobile database recovery schemes. (9 marks) Or 8 a) Explain log management in mobile database systems. (8 marks) b) Write the transaction commit protocols in mobile database systems. (8 marks) c) What do you mean by location dependent data distribution? ( 9 marks)