C6030-042 Online Practice Questions and Answers

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. ATTRIBUTES(FULL),XREF(FULL),DEFAULT (EVENDEC,DUMMY(UNALIGNED)),OFFSET

B. OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)

C. OPTIMIZE(2),DEFAULT(REORDER,NOLAXDCL,NOLAXCTL),STORAGE,MMTEMP(1000)

D. APCH(5),BIFPREC(31),NOTESTMTUNE(5),NOSERVICE

What does it mean that an interface is synchronous?

A. Requesting program must wait for a reply

B. Requesting program always receives immediate response

C. Requests are processed randomly

D. Requests are processed in parallel

The following program was written to copy a dataset with record length of 100 to another dataset. If this requirement has not been fulfilled, which is the most likely reason?

DCL DDIN FILE RECORD INPUT;

DCL DDOUT FILE RECORD OUTPUT;

DCL INSTRUC CHAR(100);

DCL EOF_IN BIT(1) INIT('0'B);

ON ENDFILE(DDIN) EOF_IN = `1'B;

DO UNTIL (EOF_IN);

READ FILE (DDIN) INTO(INSTRUC);

WRITE FILE(DDOUT) FROM(INSTRUC);

END;

A. The code fulfills the requirement.

B. The code does not fulfill the requirement because the input structure is the same as the output structure.

C. The code does not fulfill the requirement because the OPEN statements are missing.

D. The code does not fulfill the requirement because too many records will be written to the output dataset.

Which of the following would a non-technical manager be LEAST interested in regarding migration to Enterprise PL/I?

A. Amount of computer resources needed for the conversion

B. How many programs would be affected and the effort required

C. Whether training programs would be needed

D. Which Enterprise compiler options should be specified

Input to a SORT routine requires the starting position of each field to be sorted. Which of the following

calculates a value of 5 for field B?

DCL 1 S,

2 A CHAR(4),

2 B BIN FIXED(31);

A. POINTERDIFF(ADDR(S), ADDR(S.B))

B. POINTERDIFF(ADDR(S.B), ADDR(S))

C. POINTERDIFF(ADDR(S.B),ADDR(S)) + 1

D. POINTERDIFF(ADDR(S), ADDR(S.B)) + 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. The code is good as written.

B. A is incorrectly initialized and the code must be changed.

C. Discuss with the programmer how many elements of the arrays need to be initialized.

D. The declaration of A should be changed because the current declaration contains padding bytes.

What does it mean that an interface is asynchronous?

A. Requests are processed in FIFO order.

B. Requests are always processed immediately.

C. Requesting program does not have to wait for a reply.

D. Requests are processed in parallel.

Which compiler option causes the compiler to flag any reference to structure members that are not level 1 and are not dot qualified?

A. RULES(NDLAXQUAL)

B. RULES(NOLAXSTRUCT)

C. PULES(NOLAXDOT)

D. RULES(NOLAXLEVEL1)

What happens to AUTOMATIC variables when a procedure is called recursively?

A. The values from the previous invocation are lost.

B. The values from the previous invocation are saved and are available to the new invocation.

C. The values from previous invocations are preserved but can be overwritten in the new invocation.

D. The values from the previous invocation are saved and are available when the current invocation ends.

A software package utilizes several licensed third party software components and will be sold to multiple customers who will also need runtime licenses. What information is LEAST appropriate to provide in a technical operations guide?

A. The contact information of the third party vendors

B. The price or the third party software components

C. The required release level or the third party software components

D. The URL for the third party vendor

Which of the following statements is best for avoiding synchronously updating a resource?

A. Have only program A update the resource without using ENQ.

B. Have all programs use ENQ and WAIT for a specific resource.

C. Lock the entire resource at start of program and release at end of program.

D. Have several programs update the resource without using ENQ.

Given the following code, which is the only valid way to convert Q to P?

DCL Q OFFSET;

DCL P POINTER;

DCLX CHAR(100)BASED;

DCL A AREA(6000);

ALLOC X SET(Q) IN(A);

A. P = Q;

B. P = POINTER(Q,A);

C. P = POINTERVALUE(Q);

D. P = ADDR(A) + Q;

A compiler listing annotated with execution counts per statement helps identify all of the following EXCEPT

A. Potentially miscoded conditions in IFs, WHEREs, WHILEs, and UNTILs

B. Unexecuted statements and procedures

C. Calls to library routines

D. Opportunities for code optimization

A dummy argument is NOT created when a routine is called in which of the following situations?

A. With a constant as parameter

B. With the attributes(s) of the arguments and parameters are not the same

C. Where the attributes(s) of the arguments and parameters are the same

D. Using SUBSTR as one of the arguments

What characterizes the hierarchical data model with respect to data access?

A. Data access supports parent-child relationships.

B. Data access supports tables.

C. Data access can only be sequential.

D. Data access can only be via an index.