A transaction is considered isolated when:
A) it runs in a vacuum.
B) any changes in the database are not revealed to the user until the transaction is complete.
C) it can only be run on one server.
D) users can see changes to tables before the transaction is complete.
B) any changes in the database are not revealed to the user until the transaction is complete.
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Which of the following statements are correct for recursion?
a) Recursion is available only in the C and C++ languages. b) Recursion is available in all programming languages. c) Recursion is available in most modern programming languages, including C++. d) Recursion is a preprocessor technique e) Recursion, if used with care can be a useful programming technique.
Give code and the drawing to make clear what you are doing.
Here is a diagram of a three node linked list with a head pointer and a node to be inserted. Show all steps necessary to delete the second node, pointed to by discard_me. You may assume the necessary search for the node to be deleted is done and the pointer discard_me is already positioned.
You are to make clear the sequence of steps by either numbering the steps, or by making several copies of this drawing, with one change per drawing, numbered to show the sequence.
You may assume that a search routine taking a head pointer and data arguments has been defined for you.
```
NodePtr discard_me;
NodePtr temp_ptr;
```
Which of the following statements are true?
a. Recursive methods run faster than non-recursive methods. b. Recursive methods usually take more memory space than non-recursive methods. c. A recursive method can always be replaced by a non-recursive method. d. In some cases, however, using recursion enables you to give a natural, straightforward, simple solution to a program that would otherwise be difficult to solve.
When you are connected to a remote server and managing Hyper-V with PowerShell, what addition will be added to the beginning of your prompt?
A. [HyperV] B. [ServerHyperV] C. [HyperVServer] D. [Server-V]