A(n) ____ is the computer counterpart to an ordinary paper file you might keep in a file cabinet or an accounting ledger. a.|spreadsheet|c.|data file| b.|database|d.|attribute| B 8. An association between entities is known as a(n) ____. a.|integrity constraint|c.|database| b.|relationship|d.|data file| C 9. During the ____ process, a database expert determines the structure of the required database.
Each table consists of columns and rows. The database engine is responsible for building or structuring the data in the database. It is also responsible for storing and retrieving data. It can accept SQL requests from application programs written by users, known as the DBMS (Database Management System) components. The components of a typical DBMS consist of forms facility, report writer, interactive query tool, application program and database front-end.
6. A user has opened a word processor, typed the numbers 123456789, and stored the document as a file called report1. Which of the following determines, in part, what bits the computer stores in the file to represent the text typed into the report? a. Keyboard map b. Pixel grid c. Character set d. The binary equivalent of decimal 123456789 7.
https://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzakz/rzakzpasswordoverview.htm If you know the name of the system value you would like to check, you can display just that value. Go to a command line and enter: DSPSYSVAL QMAXSIGN. What information are you given? The page gives the information about maximum sign on attempts 3. How did the system know which library should be your current library?
Then the shell displays another prompt and you can enter another command. When the background job finishes running, the shell displays a message giving both the job number and the command line used to run the command. To see the PID numbers type: ps 4. Assume that the following files are in the working directory: $ ls intro notesb ref2 section1 section3 section4b notesa ref1 ref3 section2 section4a sentrev Give commands for each of the following, using wildcards to express filenames with as few characters as possible. a.
Which of the following statements are true of striped volumes? a. Striped volumes provide enhanced performance over simple volumes. d. If a single physical disk in the striped volume fails, all of the data in the entire volume is lost. 2. Which of the following are requirements for extending a volume on a dynamic disk?
An xml element consists of 1. both a beginning and closing tag 2. a beginning tag 3. a beginning and ending tag set and its content 4. an ending tag 3. The namespaces used in an xml document are declared where 1. As attributes of the root element. 2. As part of the schemaRef element.
What statements are able to access a local variable? A local variable is a variable that is declared from within the module. Only statements in that module can access it. 5. In most languages, where does a local variable’s scope begin and end?
Name and describe the two parts that a module definition has in most languages. 3. When a module is executing, what happens when the end of the module is reached? The computer goes back to the module that called it. 4.
A user has opened a word processor, typed the numbers 123456789, and stored the document as a file called report1. Which of the following determines, in part, what bits the computer stores in the file to represent the text typed into the report? Character set 7. A user has opened a calculator application, typed the numbers 123456789, and then done some math problem using this number. Which of the following determines, in part, what bits the computer stores in RAM to represent the number 123456789?