Lesson 6 Quiz: Text Version

The correct answers can be found at the bottom of the page.

Graphics Version

> Question 1:  The logic of a New-style MUMPS cross-reference, which is defined by the programmer, is executed whenever a field in the cross-reference is edited, and usually performs some action other than maintaining an index.

A.  True
B.  False

> Question 2:  The Set and Kill logic and the Set and Kill conditions of New-style cross-references can reference the X, X1, and X2 arrays. What does the X(order#) array contain when a record is edited, and the cross-reference is fired?

A.  The old cross-reference values when the Kill logic and Kill condition are executed.
B.  The new cross-reference values when the Set logic and Set condition are executed.
C.  Both of the above.

> Question 3:  What does the X1(order#) array contain when a record is edited, and the cross-reference is fired?

A.  The old cross-reference values when the Set and Kill logic and conditions are executed.
B.  The new cross-reference values when the Set and Kill logic and conditions are executed.
C.  Neither of the above.

> Question 4:  What does the X2(order#) array contain when a record is edited, and the cross-reference is fired?

A.  The old cross-reference values when the Set and Kill logic and conditions are executed.
B.  The new cross-reference values when the Set and Kill logic and conditions are executed.
C.  Neither of the above.

> Question 5:  When a new record is added to a file, FileMan sets the .01 field and immediately fires the Set logic of all the cross-references on the .01 field. The X1(order#) array element that corresponds to the .01 field is null at this point.

A.  True
B.  False

> Question 6:  When a record is deleted from a file, the Kill logic of all cross-references for that record is executed. All X2(order#) array elements are null at this point.

A.  True
B.  False

> Question 7:  You can define Set and Kill Conditions on both Regular and MUMPS cross-references to prevent a cross-reference from firing under conditions you specify. If there is a Set Condition, the Set Logic will be executed only if the Set Condition sets X to Boolean true (i.e., after the Set Condition code is executed, the command IF X evaluates to true).

A.  True
B.  False

> Question 8:  If there is Kill Condition on a Regular and MUMPS cross-reference, the Kill Logic is executed only if the Kill Condition sets X to Boolean false.

A.  True
B.  False

> Question 9:  An Action-type cross-reference is a cross-reference with Set and Kill logic that performs some action other than building an index. Most MUMPS cross-references are Action-type cross-references. An Action-type cross-reference must have a name that starts with the letter:

A.  "A"
B.  "C"
C.  Neither of the above.

CORRECT ANSWERS:

Question 1:  The logic of a New-style MUMPS cross-reference, which is defined by the programmer, is executed whenever a field in the cross-reference is edited, and usually performs some action other than maintaining an index.
     Answer:  A. "True."

Question 2:  The Set and Kill logic and the Set and Kill conditions of New-style cross-references can reference the X, X1, and X2 arrays. What does the X(order#) array contain when a record is edited, and the cross-reference is fired?
     Answer:  C. "Both of the above." (The X(order#) array contains [1] the old cross-reference values when the Kill Logic and Kill Condition are executed, and [2] the new cross-reference values when the Set Logic and Set Condition are executed.)

Question 3:  What does the X1(order#) array contain when a record is edited, and the cross-reference is fired?
     Answer:  A. "The old cross-reference values when the Set and Kill logic and conditions are executed."

Question 4:  What does the X2(order#) array contain when a record is edited, and the cross-reference is fired?
     Answer:  B. "The new cross-reference values when the Set and Kill logic and conditions are executed."

Question 5:  When a new record is added to a file, FileMan sets the .01 field and immediately fires the Set logic of all the cross-references on the .01 field. The X1(order#) array element that corresponds to the .01 field is null at this point.
     Answer:  A. "True."

Question 6:  When a record is deleted from a file, the Kill logic of all cross-references for that record is executed. All X2(order#) array elements are null at this point.
     Answer:  A. "True."

Question 7:  You can define Set and Kill Conditions on both Regular and MUMPS cross-references to prevent a cross-reference from firing under conditions you specify. If there is a Set Condition, the Set Logic will be executed only if the Set Condition sets X to Boolean true (i.e., after the Set Condition code is executed, the command IF X evaluates to true).
     Answer:  A. "True."

Question 8:  If there is Kill Condition on a Regular and MUMPS cross-reference, the Kill Logic is executed only if the Kill Condition sets X to Boolean false.
     Answer:  B. "False." (The Kill Logic is executed only if the Kill Condition sets X to Boolean true.)

Question 9:  An Action-type cross-reference is a cross-reference with Set and Kill logic that performs some action other than building an index. Most MUMPS cross-references are Action-type cross-references. An Action-type cross-reference must have a name that starts with the letter:
     Answer:  A. "A".

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Reviewed/Updated: March 20, 2007