Which of the following should be done to harden a system?
a. Turn off unused services.
b. Apply port filtering and close unused ports.
c. Apply the latest security patches and fixes.
d. All the above.
ANS: D
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Answer the following statements true (T) or false (F)
1. A node can be dynamically allocated. 2. Before you can assign headPtr a value, you must first create a new Node object. 3. Generally speaking, a link-based implementation does not impose a fixed maximum size on the data structure. 4. Like an array-based implementation, a link-based implementation’s insertion and removal operations will need to move data items. 5. For a link-based bag, the most convenient place to make an insertion is at the beginning of the chain.
A string array:
a. Stores an actual string in each of its elements. b. Can only provide access to strings of a certain length. c. Is actually an array of pointers. d. Is always less memory efficient than an equivalent double-subscripted array.