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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. A programmer has submitted the following declaration for review. What feedback should be provided to
the programmer?
DCL 1 A,
2 B DIM (1000) FIXED BIN (31) INIT (0),
2 C DIM (1000) FIXED BIN(15) INIT (0);

A) Discuss with the programmer how many elements of the arrays need to be initialized.
B) The declaration of A should be changed because the current declaration contains padding bytes.
C) A is incorrectly initialized and the code must be changed.
D) The code is good as written.

2. Given the following declaration, what declaration of B would cause the structure Ato be invalid?
DCL K FIXED BIN (31) VALUE (10);
DCL P POINTER;
DCL 1 A BASED (P),
2 B FIXED BIN(31),
2 C DIM (K REFER (B)),
3 D FIXED BIN(31),
3 E CHAR (4);
ALLOCATE A;

A) 2B FIXED BIN(31) INIT (10),
B) 2B FIXED BIN (31),
C) 2B FIXED BIN(31) INIT (20),
D) 2B FIXED BIN (31) INIT (K),

3. The XMLCHAR builtin function provides the ability to do which of the following?

A) Create an XML buffer from a structure
B) Check XML for validity
C) Read an XML file into a structure
D) Check XML for well-formedness

4. A lead developer reviewing code from one of the programmers found the following code. What should the
programmer be told about BY NAME assignments?
DCLl STR1, 3FB15 FIXED BIN (15), 3 CH10 CHAR (10), 3 NAME CHAR (25). 3 ADDR CHAR (30), 3
FB31 FIXED BIN(31);
DCL 1 STR2, 3 FB31 FIXED BIN (31), 3 FB31B FIXED BIN (31), 3 NAME CHAR (20), 3 ADDR CHAR
(30), 3 CH20 CHAR (20);
STR2 = STR1, BY NAME;

A) They do not work in this case and the code should be replaced by individual assignments.
B) They can have inadvertent side effects and the code should be analwed.
C) There is nothing wrong with using BY NAME assignments in this situation.
D) They are incorrect and should be replaced by individual assignments.

5. In which of the following groups of compiler options could all the options specified cause the compiler to
generate code which requires more time at execution?

A) OPTIMIZE(2),DEFAULT(REORDER,NOLAXDCL,NOLAXCTL),STORAGE,MMTEMP(1000)
B) OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)
C) ATTRIBUTES(FULL),XREF(FULL),DEFAULT(EVENDEC,DUMMY(UNALIGNED)),OFFSET
D) APCH(5),BIFPREC(31),NOTESTMTUNE(5),NOSERVICE

Solutions: