A die is rolled twice. What is the probability of rolling a total of 9 on two dice?
A. 
B. 
C. 
D. 
E. 
Answer: C
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Give an example of a schedule of two transactions in which a two-phase locking concurrency control aborts one of the transactions (because of a deadlock) but a SNAPSHOT isolation control allows both transactions to commit.
What will be an ideal response?
Select the false statement.
a. C++ imposes no structure on a file. b. C++ files include information about their structure. c. The programmer must impose a structure on a file. d. C++ files do not understand notions such as “records” and “fields.”
Which of the following statements are true?
a. You can specify a horizontal text alignment in a text area. b. You can specify the number of columns in a text area. c. You can disable editing on a text area. d. You can create a text field with a specified text area. e. You can specify the number of rows in a text area.
____ accounts do not require credentials, providing easy access into the database infrastructure.
A. Root B. User C. Anonymous D. Community