What are the advantages of a layered networking model?
What will be an ideal response?
A layered networking model is advantageous because it:
• Simplifies the networking model by dividing it into a finite number of components, which makes it easier to comprehend and use
• Enables programmers to specialize in a particular level or layer of the networking model
• Provides design modularity, which allows upgrades to a specific layer to remain separate from the other layers
• Encourages interoperability by promoting balance between different networking models
• Allows networking vendors to produce standardized interfaces
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Which of the following is true?
a. Only class templates may specify default type arguments for type parameters. b. Only function templates may specify default type arguments for type parameters. c. Both class templates and function templates may specify default type arguments for type parameters. d. None of the above.
You have a file that is not empty, and you want to preserve the contents and append to the end of the file. Give the commands necessary to open a file for appending.
What will be an ideal response?
What does the following fragment of code display? What do you think the programmer intended the code to do, and how would you fix it?
``` int sum = 0; int product = 1; int max = 20; for (int i = 1; i <= max; i++) sum = sum + i; product = product * i; System.out.println(“The sum is “ + sum + “ and the product is “ + product); ```
Geo-spread data centers are spread over a large geographic area
Indicate whether the statement is true or false