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Question: What is the role of an ER model in distributed databases?Options: To define the physical s..
Question: Which of the following is a common method for achieving data consistency in distributed da..
Question: What is the main challenge of concurrency control in distributed databases?Options: Ensuri..
Question: What is a potential drawback of normalization?Options: Increased data integrityMore comple..
Question: In database transactions, what does ACID stand for?Options: Atomicity, Consistency, Isolat..
Question: What role does a data mart play in a data warehousing environment?Options: It serves as a ..
Question: Which of the following is a benefit of using a snowflake schema?Options: Simpler queriesRe..
Question: What is a common challenge in concurrency control for data warehouses?Options: High transa..
Question: Which of the following best describes data normalization in the context of data warehousin..
Question: What is the main function of a foreign key in a relational database?Options: To uniquely i..
Question: In database architecture, what is the purpose of a data dictionary?Options: To store user ..
Question: What is the purpose of an ER diagram?Options: To define SQL queriesTo visualize the databa..
Question: What does a solid line represent in an ER diagram?Options: A weak relationshipA strong rel..
Question: In a database, what does ACID stand for?Options: Atomicity, Consistency, Isolation, Durabi..
Question: Which component of a DBMS is responsible for data storage?Options: Query ProcessorStorage ..
Question: What does a foreign key do in a relational database?Options: Links two tables togetherDefi..
Question: What is the main purpose of normalization?Options: To reduce data redundancyTo increase da..
Question: Which of the following is NOT a type of database architecture?Options: Single-tier archite..
Question: In the context of transactions, what does ACID stand for?Options: Atomicity, Consistency, ..
Question: Which of the following is a characteristic of a primary key?Options: It can contain duplic..
Question: What does the ACID acronym stand for in database transactions?Options: Atomicity, Consiste..
Question: What is the primary purpose of error control in wireless communication?Options: To increas..
Question: What technology allows multiple devices to connect to a single wireless access point?Optio..
Question: Which of the following is a disadvantage of wireless networks?Options: Higher installation..
Question: What is the purpose of the SSID in a wireless network?Options: To encrypt the dataTo ident..
Question: Which wireless technology is used for short-range communication between devices?Options: W..
Question: What is the primary function of a wireless access point?Options: To route traffic between ..
Question: Which of the following is a common frequency band used by Wi-Fi networks?Options: 2.4 GHz5..
Question: What is the maximum range of a typical Wi-Fi network in open space?Options: 50 meters100 m..
Question: Which protocol is primarily used for wireless network security?Options: HTTPFTPWPA2SMTPCor..
