Free Oracle 1Z0-819 Exam Questions

Become Oracle Certified with updated 1Z0-819 exam questions and correct answers

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Total 515 Questions | Updated On: Apr 09, 2021

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Question 1

Which is a proper JDBC URL?

A : jdbe.mysql.com://localhost:3306/database

B : http://localhost.mysql.com:3306/database

C : http://localhostmysql.jdbc:3306/database

D : jdbc:mysql://localhost:3306/database

Answer: D

Question 2

Given:

What is the result?

A : compilation fails.

B : df

C :

D : f

E : cd

Answer: A

Question 3

Given:

What is the result?

A : A java.util.NoSuchElementException is thrown at run time.

B : Ans : a

C : The compilation fails.

D : Ans :

Answer: A

Question 4

Given:

and:

Which code, when inserted on line 10, prints the number of unique localities from the roster list?

A : .map(Employee::getLocality).distinct().count();

B : map(e > e.getLocality()).count();

C : .map(e > e.getLocality()).collect(Collectors.toSet()).count();

D : .filter(Employee::getLocality).distinct().count();

Answer: D

Question 5

Given the code fragment:

What is the result?

A : 0

B : The program prints nothing.

C : It prints 1 in infinite loop.

D : 1

E : 0

F : 1

Answer: B

Page: 1 / 103

Total 515 Questions | Updated On: Apr 09, 2021

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