The ________layer of the OSI Model can be viewed as the closest to the end user and interacts with applications
Fill in the blank(s) with the appropriate word(s).
Answer: Application. Functionality at this layer includes email (SMTP), remote file access, remote printer access, File Transfer Protocol (FTP), HyperText Transfer Protocol (HTTP), and network management.
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The ____ statement directs program flow through a group of statements an arbitrary number of times.
A. if B. while C. for D. switch
Answer the following statements true (T) or false (F)
1. The operating system cannot enforce access-control policies based on user identity. 2. The security of the Kerberos server should not automatically be assumed, but must be guarded carefully by taking precautions such as placing the server in a locked room. 3. Once the server verifies that the user ID in the ticket is the same as the unecrypted user ID in the message it considers the user authenticated and grants the requested service. 4. It is the ticket that proves the client's identity. 5. Identity providers may also assign attributes to users, such as roles, access permissions, and employee information.
The sh ip interface brief command indicates that the protocol for a FastEthernet interface is down. What does this mean?
What will be an ideal response?
(Mortgage Calculator Application) A bank offers mortgages that can be repaid in 10, 15, 20, 25 or 30 years. Write an application that allows a user to enter the amount of the mort- gage and the annual interest rate. When the user clicks a JButton, the application displays a table of the mortgage length in years together with the monthly payment as shown in Fig. 8.24.
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a) Copying the template to your working directory. Copy the directory C:Examples Tutorial08ExercisesMortgageCalculator2 to your C:SimplyJava directory.
b) Opening the template file. Open the MortgageCalculator.java file in your text editor.
c) Customizing a JTextArea. After line 109, insert a statement that sets the bounds property of outputJTextArea to 16, 96, 298, 110. On the next line, add a statement that sets the editable property of outputJTextArea to false.
d) Adding code to the Calculate JButton event handler. Add the code specified in the steps e through m to the calculateJButtonActionPerformed event handler, which begins at line 134.
e) Declaring variables required to determine monthly payments. In calculateJBut- tonActionPerformed, declare int variable years and initialize its value to 10. Also, declare int variable months and double variable monthlyPayment.
f) Obtaining the user input and converting the annual interest rate to the monthly interest