Which of the following is not a firewall technology?
a. Packet filtering.
b. Proxy server.
c. Stateful packet filtering.
d. All the above are firewall technologies.
d. All the above are firewall technologies.
Explanation: Firewalls are based on three technologies: packet filtering, proxy server, and stateful packet filtering.
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Which of the following Python concepts are demonstrated directly or indirectly by the following code:
In [1]: type(x) Out[1]: int In [2]: x = 4.1 In [3]: type(x) Out[3]: float In [4]: x = 'dog' In [5]: type(x) Out[5]: stra. Python uses dynamic typing—it determines the type of the object a variable refers to while executing your code. b. Over its lifetime a variable can be bound to different variables, even variables of different types. c. Python creates objects in memory and removes them from memory as neces-sary. This removal process—called garbage collection—helps ensure that memory is available for new objects you create. d. All of the above.
The main grayscale technology for e-text display on the Amazon Kindle Paperwhite and Barnes and Noble NOOK is ________
Fill in the blank(s) with correct word
____ are small squares of color that create the image, like tiles in a mosaic.
A. Bitmaps B. Blends C. Objects D. Pixels
Once you ____ and save an image, you cannot go back to the layered file.
a. flatten b. concatenate c. index d. transform