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Feedback on the new OCP Java 11 Developer 1Z0-819 exam

 
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One of our content developers took the new OCP Java SE 11 Developer Certification exam (Exam Code 1Z0-819) and here is what they had to say about the exam.

Hope to learn more about this exam over the next few weeks as more and more people take it.


Since the number of questions were so less (only 50), some topics were completely left out. Obviously, this doesn't mean that the exam doesn't have questions on those topics.

Specifically, the following things stood out in the exam:

1. Modules:
Only a couple of very basic conceptual questions.
No question on advanced topic such as services, migration strategies, command line options, module tools such as jdeps.

2. JDBC:
Only a couple of basic questions involving PreparedStatement.
No ResultSetMetaData
No DriverManager, transactions, savepoint questions.


3. Multithreading/Locking:
No question on Atomic classes
No question on locks
Couple of tough questions on ExecutorService

4. File I/O:
Simple question on methods of Files class involving options such as REPLACE_EXISTING.
Question on seriaization
No question on Paths or Path relativize
No question on Console

5. Arrays/Collection/Stream: Several questions
Lot of questions used the boxed() method.
Heavy focus on autoboxing of elements of a stream.
Heavy focus on List.of and List.copyOf methods
No question on Deque but TreeSet was used

6. Overloading: No complicated question on method resolution.

7. Advanced question on Enum

8. Advanced question on Annotation

9. Simple question on exceptions.

10. Security: Two code based questions on doPriviledged. No question on other topics.

One question had 10, yes, 10, options! A couple of them had 7 or 8 options as well. Most had 4-5 though.

Only a few questions were very lengthy to read (they had a long problem statement). Most were not so much.

Time was enough.

Overall the test did not seem too hard in terms of mind tricks but was hard in terms of depth of understanding required. You can't just read a topic cursorily and expect to answer exam questions on it. For example, the questions on enums and annotations requried that you know the complete ins and outs of how they work.

 
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Thanks Paul!
 
Greenhorn
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Thanks, Paul very much needed information.
 
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I took it yesterday and here are my observations

Do note that with only 50 questions, luck of the draw is a big factor as topics go. So don't skip studying a topic just because it isn't on this list!
 
Pooja Kaul
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Thanks for the blog. I read it twice.

The most important line I found by you.

Test-taking skills are definitely important on this exam. For example, I looked at the answers before reading questions with a bunch of code. This gave me a clue what to look for. And also told me that I could read faster if there was a “do not compile” option.

Now I think, I should give myself another 3-4 months before appearing for the exam. Because you are a book writer and scoring 72%. And I have started working on Java for the past 6 months. That means I need lots and lots of hard work to clear this exam.


 
Jeanne Boyarsky
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Pooja,
Read this is about the 72%. It's not a reflection on how much you need to study. It's a reflection of how I've been doing during the pandemic!
 
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I was studying for 815/816 and was planning to write mid Oct only to discover that the exams have been retired. So now need to focus on 819. Reading comments on this blog, I am going to buy @Jeanne’s book and still write the exam mid Oct. insights here are valuable.
 
Pooja Kaul
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Jeanne Boyarsky wrote:Pooja,
Read this is about the 72%. It's not a reflection on how much you need to study. It's a reflection of how I've been doing during the pandemic!



Thanks, Jeanne now I am a little bit relieved.
 
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Pooja Kaul wrote:Thanks for the blog. I read it twice.

The most important line I found by you.

Test-taking skills are definitely important on this exam. For example, I looked at the answers before reading questions with a bunch of code. This gave me a clue what to look for. And also told me that I could read faster if there was a “do not compile” option.

Now I think, I should give myself another 3-4 months before appearing for the exam. Because you are a book writer and scoring 72%. And I have started working on Java for the past 6 months. That means I need lots and lots of hard work to clear this exam.




She and other content experts are not taking the tests like normal test takers do, so I guess their scores don't matter much.
 
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Dimitri Nguyen wrote:. . . She and other content experts are not taking the tests like normal test takers do, so I guess their scores don't matter much.

What on earth does that mean? Please explain it.
 
Dimitri Nguyen
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Campbell Ritchie wrote:

Dimitri Nguyen wrote:. . . She and other content experts are not taking the tests like normal test takers do, so I guess their scores don't matter much.

What on earth does that mean? Please explain it.



I think their goals for taking the test are to make sure that their test prep material covers the topics as well as looking for any surprise/gotchas/question formats, etc.

But if you are a regular test taker who just want to pass the test, you would just try your best to answer the questions correctly.
 
Campbell Ritchie
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A normal test candidate needs to look out for the format of questions and traps too.
 
Jeanne Boyarsky
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Normally, it is harder to take the exam as an author. (Because no study materials exist yet). There have been past exams where I studied the wrong stuff.

On the other hand, we know some of the material really well. For example, I'm way better than the average person on streams/lambdas. However, one of the downsides to having a co-author is that the other person may be the expert on a topic. For example, I know basic concurrency well. However, not to the level one needs for the exam (unsurprisingly, Scott wrote that chapter).

So normally, I re-learn those parts shortly before the exam. This time, with the pandemic, that's not exactly what happened . I knew taking an exam during the pandemic would be problematic. But my score didn't matter (nor did whether I passed.). So it was better to take it then not take it.
 
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