GATE CSE 2005 | Transactions and Concurrency Question 24 | Database Management System

GATE CSE 2005

MCQ (Single Correct Answer)

-0.3

Amongst the ACID properties of a transaction, the 'Durability' property requires that the changes made to the database by a successful transaction persist

Except in case of an Operating System crash

Except in case of a Disk crash

Except in case of a power failure

Always, even if there is a failure of any kind

GATE CSE 2004

MCQ (Single Correct Answer)

-0.3

Which level of locking provides the highest degree of concurrency in a relational database?

Page.

Table.

Row.

Page, table and row level locking allow the same degree of concurrency.

GATE CSE 2003

MCQ (Single Correct Answer)

-0.3

Which of the following scenarios may lead to an irrecoverable error in a database system?

A transaction writes a data item after it is read by an uncommitted transaction

A transaction reads a data item after it is read by an uncommitted transaction

A transaction reads a data item after it is written by a committed transaction

A transaction reads a data item after it is written by an uncommitted transaction

GATE CSE Subjects

Discrete Mathematics

Graph Theory Set Theory & Algebra Combinatorics Mathematical Logic Probability Linear Algebra Calculus

Programming Languages

Basic of Programming Language Function and Recursion Pointer and Structure in C

Theory of Computation

Finite Automata and Regular Language Push Down Automata and Context Free Language Recursively Enumerable Language and Turing Machine Undecidability

Operating Systems

Process Concepts and Cpu Scheduling Synchronization and Concurrency File System IO and Protection Deadlocks Memory Management

Digital Logic

Number Systems Boolean Algebra K Maps Combinational Circuits Sequential Circuits

Computer Organization

Computer Arithmetic Memory Interfacing Machine Instructions and Addressing Modes IO Interface Pipelining Alu Data Path and Control Unit Secondary Memory

Database Management System

Er Diagrams Functional Dependencies and Normalization Structured Query Language Relational Algebra Transactions and Concurrency File Structures and Indexing

Data Structures

Arrays Stacks and Queues Linked List Trees Graphs Hashing

Computer Networks

Network Security Data Link Layer and Switching Application Layer Protocol Network Layer Routing Algorithm Concepts of Layering Lan Technologies and Wi-Fi TCP UDP Sockets and Congestion Control

Algorithms

Complexity Analysis and Asymptotic Notations Searching and Sorting Divide and Conquer Method Greedy Method P and NP Concepts Dynamic Programming

Compiler Design

Lexical Analysis Parsing Syntax Directed Translation Code Generation and Optimization

Software Engineering

Web Technologies

General Aptitude

Numerical Ability Verbal Ability