最新的Oracle 1Z1-816免費考試真題

問題1

Given:
jdeps -jdkinternals C:\workspace4\SimpleSecurity\jar\classes.jar
Which describes the expected output?

A. The -jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal APIs. If any are found, the results with suggested replacements are output in the console.

B. jdeps lists the module dependencies and the package names of all referenced JDK internal APIs. If any are found, the suggested replacements are output in the console.

C. The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.

D. jdeps outputs an error message that the -jdkinternals option requires either the -summary or the - verbose options to output to the console.

正確答案: B

說明：（僅 Fast2test 成員可見）

問題2

Which code fragment compiles?

A. Option D

B. Option B

C. Option C

D. Option A

正確答案: A

說明：（僅 Fast2test 成員可見）

問題3

Given:

You want the code to produce this output:
John
Joe
Jane
Which code fragment should be inserted on line 1 and line 2 to produce the output?

A. Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

B. Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2.

C. Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2.

D. Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

正確答案: C

說明：（僅 Fast2test 成員可見）

問題4

Consider this method declaration:

A) "SET SESSION AUTHORIZATION " + user
B) "SET SESSION AUTHORIZATION " + stmt.enquoteIdentifier(user)
Is A or B the correct replacement for <EXPRESSION> and why?

A. B, because enquoting values provided by the calling code prevents SQL injection.

B. B, because all values provided by the calling code should be enquoted.

C. A and B are functionally equivalent.

D. A, because it sends exactly the value of user provided by the calling code.

E. A, because it is unnecessary to enclose identifiers in quotes.

正確答案: D

說明：（僅 Fast2test 成員可見）

問題5

Given:

Which two are correct? (Choose two.)

A. Option D

B. Option B

C. Option C

D. Option A

正確答案: A,C

問題6

Given:

You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?

A. var lines = Files.lines(Paths.get(INPUT_FILE_NAME));

B. Stream<String> lines = Files.lines(INPUT_FILE_NAME);

C. Stream lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

D. var lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

正確答案: D

問題7

A bookstore's sales are represented by a list of Sale objects populated with the name of the customer and the books they purchased.
public class Sale {
private String customer;
private List<Book> items;
// constructor, setters and getters not shown
}
public class Book {
private String name;
private double price;
// constructor, setters and getters not shown
}
Given a list of Sale objects, tList, which code fragment creates a list of total sales for each customer in ascending order?

A. Option D

B. Option B

C. Option C

D. Option A

正確答案: C

問題8

You are working on a functional bug in a tool used by your development organization. In your investigation, you find that the tool is executed with a security policy file containing this grant.

What action should you take?

A. Nothing, because listing just the required permissions would be an ongoing maintenance challenge.

B. Nothing, because it is not related to the bug you are investigating.

C. Remove the grant because it is excessive.

D. File a security bug against the tool referencing the excessive permission granted.

E. Nothing, because it is an internal tool and not exposed to the public.

正確答案: D

說明：（僅 Fast2test 成員可見）

最新的Oracle Java SE 11 Programmer II - 1Z1-816免費考試真題

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