Which of the following is an example of a race condition? Question 7 options: Two threads trying to acquire the same lock simultaneously Two threads accessing different resources simultaneously Two threads executing code in a predetermined order Two threads executing code in separate critical sections
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Which of the following is an example of a race condition?
Question 7 options:
|
Two threads trying to acquire the same lock simultaneously |
|
Two threads accessing different resources simultaneously |
|
Two threads executing code in a predetermined order |
|
Two threads executing code in separate critical sections |
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- Which of the following best describes a potential issue with the producer-consumer problem? Question 12 options: The producer may attempt to add items to a full buffer, causing it to block The consumer may attempt to remove items from an empty buffer, causing it to block The producer and consumer may try to access the buffer at the same time, causing a race condition All of the aboveWhich of the following is a common cause of race conditions? Question 5 options: Deadlocks Starvation Concurrent access to shared resources None of the abovein sql User_123 has successfully logged on to the database in the past, but today he receives an error message stating that he cannot log on. What is the most likely cause of the problem? Select one: a. User_123's CREATE USER privilege has been revoked. b. User_123 's CREATE SESSION privilege has been revoked. c. User_123's user account has been removed from the database. d. One or more object privileges have been REVOKEd from User_123 .
- How do you reverse a transaction? a. Use UNDO feature b. Use ROLLBACK c. Set AUTOCOMMIT OFF d. Set SAVE OFF e. All of the above. f. None of the above.Assuming you have created already created a MySQL database named "database_name" with a table named "users" that has columns for "username", "password", and "email". And that you have also created a login system that sets the "username" session variable when a user logs in.Write a simple PHP code that makes use of sessions, mysql insert, update, and delete. The code should first start with a session using session_start(). It should then connect to a MySQL database using mysqli_connect(). It inserts a new record into the users table using mysqli_query() and an SQL INSERT statement. It updates an existing record in the users table using mysqli_query() and an SQL UPDATE statement. It deletes a record from the users table using mysqli_query() and an SQL DELETE statement. It sets a session variable using $_SESSION["username"] and displays it using echo. Finally, it closes the MySQL connection using mysqli_close()You manage an Azure subscription named Sub1. Sub1 is associated to an Azure Active Directory (Azure AD) tenant named contoso.com. You need to delegate your staff permissions to view the sign-in logs. The solution must use the principle of least privilege. Which Azure AD role should you use for the delegation
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