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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Given the following pseudocode inside a loop, where should the COMMIT action be placed assuming that
there is always a one-to-many relationship between header and detail tables?
1 Find header row 2 IF found 3 Update header row 4 Find detail row 5 IF found THEN 6 Update detail
rows 7 ELSE 8 ENDIF 9 ENDIF

A) After line 8
B) After lines 3, 8, and 9
C) After line 3
D) After line 6

2. Given the following declaration, W has to be assigned to C.
How can a CONVERSION condition be
avoided?
DCL C CHAR(1);
DCL W WIDECHAR(1);

A) IF RANK(W)> 127 THEN
PUT ('Widechar is not a valid char!');
ELSE
C = W;
B) IFW ^= CHAR(W)THEN
PUT ('Widechar not is a valid char!');
ELSE
C = W;
C) IF WCHARVAL(W) > 128 THEN
PUT ('Widechar is not a valid char!');
ELSE
C = W;
D) IFW >128THEN
PUT ('Widechar is not a valid char!');
ELSE
C = W;

3. A given PL/I program has a big nesting depth. Which of the following measures will help to reduce the
nesting depth in most cases?

A) Avoiding ELSE clauses
B) Avoiding OTHER clauses
C) Using DO-WHILE as the only loop technique
D) Using SELECT constructs instead of If-THEN-ELSE

4. A program reads an input file into a structure with 20 fields. Fifteen of these are required as parameters in
an external procedure. Which of the following is the most efficient way of passing these parameters?

A) Create a structure, assign the 15 variables to it and pass it as one argument.
B) Pass 15 variables in a parameter list.
C) Pass the address of the input structure as one argument.
D) Create a structure, assign the 15 variables to it and pass the address of it in one argument.

5. What happens to STATIC variables declared in a procedure when the procedure is called recursively?

A) STATIC variables are allocated and initialized at each new invocation.
B) The values of STATIC variables from the previous invocation are lost.
C) The values of STATIC variables from the previous invocation are saved and are available when the
current invocation ends.
D) STATIC variables are allocated only once and can, therefore, be used for communication between
invocations.

Solutions: