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Programming & Computer Science
One job of the scheduler is to:
A. Ensure hardware resources are kept free for when they are needed.
B. Provide acceptable response time to interactive users.
C. Ensures that one process does not accidentally access another's memory
locations.
A. Ensure hardware resources are kept free for when they are needed.
B. Provide acceptable response time to interactive users.
C. Ensures that one process does not accidentally access another's memory
locations.
Computer Networks
Program-data independence in the context of a DBMS means that changes to:
A The content of data files do not necessitate changes to the program.
B The program does not affect the contents of the files.
C The program does not affect the structure of the data files.
D) The structure of the data files do not affect the program.
A The content of data files do not necessitate changes to the program.
B The program does not affect the contents of the files.
C The program does not affect the structure of the data files.
D) The structure of the data files do not affect the program.
Programming & Computer Science
Managers who are potential users Of an MIS:
A Describe desired information needs.
B Identify desired information needs.
C Evaluate alternate equipment configurations.
D Identify optimum equipment configurations.
A Describe desired information needs.
B Identify desired information needs.
C Evaluate alternate equipment configurations.
D Identify optimum equipment configurations.
Programming & Computer Science
A multi-programming computer is one which:
A. Has several processors working in parallel.
B Having multiple users working at the same time.
C Is capable of running two or more programs apparently simultaneously.
D) Multiple programs are made to run at the same time.
A. Has several processors working in parallel.
B Having multiple users working at the same time.
C Is capable of running two or more programs apparently simultaneously.
D) Multiple programs are made to run at the same time.
Computer Networks
The highest data rate is provided by which of the following media?
A Coaxial cable.
B Optical fiber.
C Microwave.
D) Satellites.
A Coaxial cable.
B Optical fiber.
C Microwave.
D) Satellites.
Programming & Computer Science
A data model is:
A Used to describe the structure of a database.
B Set of basic operations on the database.
C Both (A) and (B).
I) None of the above.
A Used to describe the structure of a database.
B Set of basic operations on the database.
C Both (A) and (B).
I) None of the above.
Programming & Computer Science
The level of data abstraction which describes how the data is actually stored in a database system is;
A Conceptual level.
B Physical level.
C File level.
D None or these.
A Conceptual level.
B Physical level.
C File level.
D None or these.
Computer Networks
A top-to-bottom relationship among the items in a database is established by a:
A Hierarchical schema.
B Network schema.
C Relational schema.
D Object schema.
A Hierarchical schema.
B Network schema.
C Relational schema.
D Object schema.
Computer Networks
In a token ring network:
A. Each node has to 'grab' the token at a designated time and send or receive a
message
B. Messages can be passed round the ring in either direction
C. Message tokens can simultaneously be passed around the ring
D. The message is passed to the correct recipient by a central computer
A. Each node has to 'grab' the token at a designated time and send or receive a
message
B. Messages can be passed round the ring in either direction
C. Message tokens can simultaneously be passed around the ring
D. The message is passed to the correct recipient by a central computer
Computer Networks
In a token ring network:
A. Each node has to 'grab' the token at a designated time and send or receive a
message
B. Messages can be passed round the ring in either direction
C. Message tokens can simultaneously be passed around the ring
D. The message is passed to the correct recipient by a central computer
A. Each node has to 'grab' the token at a designated time and send or receive a
message
B. Messages can be passed round the ring in either direction
C. Message tokens can simultaneously be passed around the ring
D. The message is passed to the correct recipient by a central computer
