최신 IBM Certified Application Developer C9050-042 무료샘플문제:
1. An external subroutine procedure requires 10 variables belonging to an input file and 10 variables
belonging to an output file. What is best practice in passing these variables to the procedure?
A) Integrate the 10 variables belonging to the input file in one structure and the 10 variables belonging to
the output file in another one and pass the addresses of them as parameters to the procedure.
B) Integrate the 20 variables in one structure and pass the address of the structure in the parameter list.
C) Pass the 20 variables individually in the parameter list.
D) Declare the 20 variables EXTERNAL in both the calling program and in the procedure called and pass
no variable in the parameter list.
2. In a multithreading environment, when can a race condition occur between two threads?
A) When they periorm an operation on same memory area
B) When they operate synchronously
C) When they cause a deadlock
D) When the threads have the same priority
3. Assuming there is no information about the duration or each table update and the programs are running in
a multitasking environment, which of the following options will best minimize the chance for deadlocks?
A) Programs update table A, Table B and Table C in random order.
B) All programs update Table A, Table B and Table C in the same order.
C) Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table
B, Table C and Table A in the specified order.
D) Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table
C, Table B and Table A in the specified order.
4. What will be printed after the following statements?
DCL B BIT(5); B = 1; PUT(B);
A) '00001'B
B) '00010'B
C) '11111'B
D) '10000'B
5. Given the following declarations, which code is likely to perform best and correctly initialize structure 3?
DCL 1 S UNALIGNED, 2 A CHAR(3), 2 B BIN FIXED(31), 2 C DEC FIXED(5); DCL 1 T UNALIGNED
LIKE S; T = ";
A) S = ";
B) S = T,BY NAME;
C) CALL PLIFILL(ADDR(S),'',STG(S));
D) CALL PLIMOVE(ADDR(S),ADDR(T),STG(S));
질문과 대답:
| 질문 # 1 정답: A | 질문 # 2 정답: A | 질문 # 3 정답: B | 질문 # 4 정답: B | 질문 # 5 정답: D |
1215 개 고객 리뷰
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