Which of the following statements regarding relational algebra are true? (i) R ⋈ S = σ(R×S) (ii) R ⋈ S = Π(R×S) (iii) R ⋈ S = R * S
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If one attribute is a determinant of a second, which in turn is a determinant of a third, then the relation cannot be
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Choose the correct statement:
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In an entity relationship, y is the dominant entity and x is a subordinate entity. Then which one is incorrect?
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There is a possibility of a cascading rollback when
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A functional dependency of the form X → Y is trivial if
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A data dictionary is a special file that contains
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Which device is used to connect multiple devices within the same network segment and operates at the data link layer?
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Which attack involves intercepting and altering communication between two parties without their knowledge?
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What does a firewall primarily do?
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Which application layer protocol is primarily used for sending email?
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Which process model is best suited when requirements are well understood and unlikely to change?
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Which testing strategy is performed without knowledge of the internal code?
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Which design principle aims to reduce dependencies between modules?
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Correct sequence of Risk Management process is
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Which of the following testing methods is normally used as the acceptance test for a software system?
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Which of the following is not a supervised machine learning algorithm?
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What is the key benefit of using deep learning for tasks like recognizing images?
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What is the key difference between supervised and unsupervised learning?
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The purpose of an activation function in a neural network is to
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Hidden Markov Models assume the system is
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