Provide a general description for how routers are used in border security.
What will be an ideal response?
A router performs packet filtering and is often used as a firewall on a network, in addition to the other functions it performs. Routers have built-in intelligence and can be customized through configuration to direct packets to specific networks, study network traffic, quickly adapt to changes detected in the network, and protect networks by determining which packets are to be blocked.
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Answer the following statements true (T) or false (F)
1. logical operators AND and OR have a higher precedence than the NOT operator. 2. The following C++ test checks if the variable child is in the range 3 to 12. 3. Assuming good Data is a Boolean variable, the following two tests are logically equivalent. 4. The statement does exactly the same thing as the if/else statement below: 5. Relational expressions and logical expressions are both Boolean, which means they evaluate to true or false.
An IBM mainframe’s instruction counter is called the __________.
a. instruction counter b. PSW c. old PSW d. new PSW
In an Objective-C method, arguments are specified by being placed within which punctuation mark?
A. Parentheses ( ) B. Brackets [ ] C. Braces { } D. None
The ____ button allows you to choose whether you want to copy the values from the source area to the destination area with formatting.
A. Copy Options B. Replace Options C. Formatting Options D. Auto Fill Options