TUNE YOUR LOOP: Questions to keep you sharp.

Tune Your Loop is a series of posts consisting of questions from ISA Training Courses.

1. A relational database must have at least two __________.

[ordered_list style=”lower-alpha”]
  1. Files containing user data
  2. Different field names for each data element
  3. Sets of backup file copies
  4. Tables with corresponding primary and foreign keys that link them[/ordered_list]

2. One way of increasing the availability of a server’s disk subsystem is to __________.

[ordered_list style=”lower-alpha”]
  1. Make regular image backups
  2. Use an encrypted file system
  3. Use RAID technology
  4. Run the disks at a slower speed[/ordered_list]

3. The standard language initially developed in the 1960s for programmatically
interacting with a DBMS is called __________.

[ordered_list style=”lower-alpha”]
  1. Cobol
  2. Fortran
  3. SQL
  4. Basic[/ordered_list]

4. The Windows-specific data exchange mechanism designed to connect data
sources (servers) to data users (clients) for real-time and other categories of more
complex data is called __________.

[ordered_list style=”lower-alpha”]
  1. CIA
  2. OPC
  3. Active-X
  4. Modbus[/ordered_list]

5. The SELECT command is used to perform what type of database operation?

[ordered_list style=”lower-alpha”]
  1. A query
  2. A sort
  3. A record modification
  4. A table reorganization[/ordered_list]

 

What are your answers before you read ahead?

1. d

2. c

3. c

4. b

5. a

 

From the ISA Course Database Management for Industrial Automation and Control Systems (EA05) pre-instructional survey.

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