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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. PL/I programs which have been written under Intel architecture are now to be recompiled and run on the
mainframe. What will happen to the programs during compilation and execution?

A) They will not compile correctly on mainframe because ASCII has no NOT sign.
B) They will not run correctly because the byte order on mainframe is bigendian.
C) They may have to be changed before they run correctly on the mainframe.
D) They can be recompiled unchanged and will run correctly.

2. What does it mean that an interface is synchronous?

A) Requests are processed in parallel
B) Requesting program must wait for a reply
C) Requesting program always receives immediate response
D) Requests are processed randomly

3. Which of the following may be an advantage of the BEGIN OPTIONS (INLINE) statement?

A) The program uses less heap storage.
B) The code runs faster because more variables will be optimized in the BEGINblock.
C) The program runs faster because all variables declared inside the BEGIN block are already allocated
when the block containing the BEGINblock is entered.
D) The program uses less stack storage.

4. A file containing FIXED BINARY fields that is written by a PL/I program on Intel Architecture is to be read
by PL/I programs on Intel Architecture and on the mainframe. What must be changed in the program
which reads the file on Intel architecture, if anything, for it to work correctly when it run s on the
mainframe?

A) The program must declare the FIXED BINARY fields with the attribute LITTLEENDIAN.
B) Nothing needs to be changed.
C) The program must declare the FIXED BINARY fields with the attribute BIGEND IAN.
D) The program must declare the FIXED BINARY fields with the attribute NATIVE.

5. SUBSCRIPTRANGE checks which of the following?

A) The value of each subscript used to refer to an array element is checked for validity beforethe element
is accessed.
B) The value of each subscript used to refer to an array element is checked for validity after the element is
accessed.
C) The subscripts of an array are checked for conformance with iSUB defining rules.
D) The address generated for accessing an array element is checked to be sure it falls within the storage
allocated to the array.

Solutions: