19 Questions
What are the components of computer science?
Theoretical and algorithmic foundations, hardware and software
What is the focus of computer science?
The study of computers and computing
What is the role of computer science in processing information?
Uses for processing information
What is one of the advantages of using a DBMS?
Reduction of redundancies
What is one of the disadvantages of using a DBMS?
Costly hardware and software requirements
What is a key advantage of avoiding data duplication in a DBMS?
Elimination of inconsistencies
What is an essential aspect of data integrity in a database?
Accurate and consistent data
What does a database system allow in terms of data sharing?
Unlimited data sharing by application programs or users
What is one of the responsibilities of the DBA in a DBMS?
Enforcing proper access procedures
What is one of the challenges when replacing a file-based system with a database system?
Difficulty in converting data from data files to database files
Why is there a cost associated with staff training in the context of DBMS?
DBMSs are often complex, requiring training for users at all levels
What does the physical level of abstraction in the three-level architecture of the database describe?
How the data are actually stored
What is the logical level of abstraction in the three-level architecture of the database concerned with?
What data are stored in the database and the relationships among those data
Why is there a cost associated with appointing technical staff for handling a DBMS?
Trained technical persons such as database administrators and application programmers are required to handle the DBMS
What does the view level of abstraction in the three-level architecture of the database describe?
Only part of the entire database that concerns specific users
Why is there a cost associated with converting data from data files to database files?
The process is complex and time-consuming, requiring hiring of technical staff or software houses
What may be lost or cause the whole system to stop if a database is corrupted due to power failure or storage media issues?
Valuable data or whole system
'Most DBMSs are often complex systems so the training for users to use the DBMS is required' - What does this statement imply?
Training for users is necessary due to the complexity of most DBMSs
What is required at all levels in terms of training for users to use a DBMS?
Training at all levels, including programming, application development, and database administration.
Study Notes
Computer science is a multimedia and multisphere discipline that deals with the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information[4
Explore the fundamental concepts and principles of computer science, covering topics such as theoretical foundations, algorithms, hardware, software, and information processing.
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