What are switches?

Q. What are switches? Explain the concepts of Layer-3 switches. Answer: It is a device that connects multiple network segments. A switch analyzes the MAC address and then determines where…

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Intranet vs Internet

What’s the difference Between an Intranet and the Internet? Answer: There’s one major distinction between an intranet and the Internet: The Internet is an open, public space, while an intranet…

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Banking awareness questions for IT Specialists

Banking Objective Type Question and Answers for IT Specialists 1.      The _____ states that a foreign key must either match a primary key value in another relation or it must…

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SQL

1. The _____ states that a foreign key must either match a primary key value in another relation or it must be null.(a) entity integrity rule(b) referential integrity constraint(c) action…

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SQL Objective Type Question & Answers For Interview

Q.1An entity set that does not have sufficient attributes to form a primary key is a(A) strong entity set. (B) weak entity set.(C) simple entity set. (D) primary entity set.Ans:…

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SQL Objective Type Question and Answers

Database Objective Type  Question and Answers Q.1 In the relational modes, cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of…

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