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Database Systems Practice Test 258

Lock Based Protocols MCQ (Multiple Choice Questions) PDF - 258

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Lock Based Protocols Questions and Answers PDF Download: Quiz 258

MCQ 1286: The data item may be locked by

A) 2 modes
B) 3 modes
C) 4 modes
D) 5 modes

MCQ 1287: For an individual transaction ensuring consistency is the responsibility of

A) Process itself
B) System programmer
C) Database integrity manager
D) Application programmer

MCQ 1288: The rename operation of any relational algebra is

A) Strictly required
B) Not strictly required
C) Dependent
D) Complex

MCQ 1289: Relational databases had become competitive with network and hierarchical database systems even in the area of performance, in

A) 1960s
B) 1970s
C) 1980s
D) 1990s

MCQ 1290: A query takes as input several tables and returns a

A) Multiple Records
B) Multiple Schemas
C) Multiple tables
D) Single table

Database Systems Exam Prep Tests

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Lock Based Protocols App (Android & iOS)

Lock Based Protocols App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Digital Image Processing App (Android & iOS)

Digital Image Processing App (Android & iOS)

Digital Logic Design App (Android & iOS)

Digital Logic Design App (Android & iOS)