The first step in securing a bastion host is:.
A. Obtain a mcahine with sufficient memory and processor speed.
B. Run a security audit
C. Install the services to provide or modify existing services
D. back up the system and all data on it, including log files
Answer: A
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A hotel is expanding and wants to install an elevator system in its building. You have been asked to create a simulation of this new elevator system. Create an application which simulates the buttons in the elevator and displays a simple picture of the elevator (a black rectangle) moving to the correct floor when a JButton is pressed (Fig. 20.34).
a) Copying the template to your working directory. Copy the C:Examples Tutorial20ExercisesElevator directory to your C:SimplyJava directory.
b) Opening the DrawJPanel template file. Open the template file DrawJPanel.java in your text editor.
c) Creating a new MyRectangle object. Inside the DrawJPanel no-argument construc- tor, create your new MyRectangle object buildingElevator (at line 47) after the creation of delayTimer. The template already declares buildingElevator as an instance variable. When calling the MyRectangle constructor, the x and y variables should be the first two parameters and be set to 57 and 400 respectively. The height, width and color variables should be set to 36, 50 and Color.BLACK and are the third, fourth and fifth parameters, respectively.
d) Adding code to the moveEelevator method. Find the moveElevator method, which immediately follows moveElevatorToFloor. Inside the moveElevator method, add an if…else statement that tests if currentPosition is
____ consists of expressing the area as the sum of areas of smaller segments.
a. The derivative b. Rooting c. Numerical differentiation d. Numerical integration
You can sort up to ____ levels in the Sort dialog box.
A. three B. five C. six D. twelve
An anycast address is a unicast address.
Answer the following statement true (T) or false (F)