Describe static NAT.
What will be an ideal response?
Static NAT is the simplest form of NAT, in which a single private IP address is mapped to a single public IP address. For example, a router could be configured to translate all communications from the internal 192.168.0.1 address to the address 209.86.192.197. In this way, when the host 192.168.0.1 accesses the Internet, the router will translate its IP address to 209.86.192.197. The router will then translate communications between that host and any system on the Internet. Therefore, all Internet devices will communicate with host 209.86.192.197, but the actual packets will be forwarded by the NAT router to host 192.168.0.1 on the local network. In order for the NAT router to translate communications between the internal and external network, it must maintain a table in memory that maps internal IP addresses to addresses presented to the Internet (external addresses). With static NAT, the mapping is one-to-one. For example, internal address 192.168.0.1 maps to 209.86.192.197, address 192.168.0.2 maps to 209.86.192.198, and so on.
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The _________ transformation operates on each column individually. Each byte of a column is mapped into a new value that is a function of all four bytes in that column.
Fill in the blank(s) with the appropriate word(s).
What output would you expect after typing the following:
$ prog1 $ e2=20; export e2 $ e4=40 prog1 Here are two programs called prog1 and prog2: $ cat prog1 e1=100 export e1 e2=200 e3=300 prog2 $ cat prog2 echo e1=$e1 e2=$e2 e3=$e3 e4=$e4 $
What are the advantages to using object-oriented programming techniques?
What will be an ideal response?
Looking at the Home page of our school Web site, what navigation elements do you see?
What will be an ideal response?