Compare the functions of an intrusion detection system (IDS) and an intrusion prevention system (IPS), including their normal relationship.
What will be an ideal response?
You can use an IDS and an IPS together for better protection. While an IDS detects intrusions from several sources, an IPS adds the ability to react to an attack.
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Answer the following statements true (T) or false (F)
1. Mouse interaction with the GUI is limited to click, press, and move. 2. MouseUp and MouseDown events are used when the mouse is moved up or down. 3. The Button property is used to determine which mouse button is clicked left, middle, right or none. 4. The Clicks property of class MouseEventArgs is used to determine the number of times a mouse button was clicked. 5. Whenever the mouse moves, the system raises a MouseMove event at a rate predetermined by the operating system.
Answer the following statements true (T) or false (F)
1. Downcasting should be used only in situations where it makes sense. 2. The method clone has one parameter and should return a copy of the calling object. 3. An abstract class is a class that has some methods without complete definitions. 4. An abstract method serves as a placeholder for a method that must be defined in all derived classes.
You are given the following tables:
Student(StudId, Name, Addr, Status) Transcript(Id, CrsCode, Semester, Grade)(a) Write a SELECT statement that outputs the names of all students who took CSE305 in the spring of 2000. (b) A naive query execution plan for your answer to (8a) would rst execute the FROM clause, then apply the WHERE condition to the result, and then eliminate unwanted columns using the attributes named in the SELECT clause. Express this plan as a relational algebra expression. (c) We're interested in a more ecient execution plan for this query than your answer to (8b). Such a plan uses a join operation on relations which are as small as possible (some rows of the tables to be joined have been eliminated and the remaining rows have been shortened). Give a relational algebra expression equivalent to your answer to (8b) that can be evaluated more eciently. The amount of credit you get depends on how ecient the expression is.
A stacked layout displays the field names in the left column and text boxes displaying the corresponding field values in the right column
Indicate whether the statement is true or false