Free 1Z0-819 Exam Dumps

Question 16

Given:
1Z0-819 dumps exhibit
Which would cause s to be AQCD?

A. s.replace(s.indexOf(“A”), s.indexOf(“C”), “Q”);
B. s.replace(s.indexOf(“B”), s.indexOf(“C”), “Q”);
C. s.replace(s.indexOf(“B”), s.indexOf(“B”), “Q”);
D. s.replace(s.indexOf(“A”), s.indexOf(“B”), “Q”);

Correct Answer:B

Question 17

Consider this method declaration:
1Z0-819 dumps exhibit
A) “SET SESSION AUTHORIZATION “ + user
B) “SET SESSION AUTHORIZATION “ + stmt.enquoteIdentifier(user) Is A or B the correct replacement for and why?

A. A, because it sends exactly the value of user provided by the calling code.
B. B, because enquoting values provided by the calling code prevents SQL injection.
C. A and B are functionally equivalent.
D. A, because it is unnecessary to enclose identifiers in quotes.
E. B, because all values provided by the calling code should be enquoted.

Correct Answer:A

Question 18

What makes Java dynamic?

A. At runtime, classes are loaded as needed, and new code modules can be loaded on demand.
B. The runtime can process machine language sources as well as executables from different language compilers.
C. The Java compiler uses reflection to test if class methods are supported by resources of a target platform.
D. The Java compiler preprocesses classes to run on specific target platforms.

Correct Answer:A

Question 19

Given:
1Z0-819 dumps exhibit
Which two are correct? (Choose two.)

A. Option A
B. Option B
C. Option C
D. Option D

Correct Answer:CD

Question 20

Given:
1Z0-819 dumps exhibit
Which three actions implement Java SE security guidelines? (Choose three.)

A. Change line 7 to return names.clone();.
B. Change line 4 to this.names = names.clone();.
C. Change the getNames() method name to get$Names().
D. Change line 6 to public synchronized String[] getNames() {.
E. Change line 2 to private final String[] names;.
F. Change line 3 to private Secret(String[] names) {.
G. Change line 2 to protected volatile String[] names;.

Correct Answer:EFG