Quiz

1. Select all correct statements:
   1. IDE executes Java code without compiling it
   2. IDE uses the installed Java to execute the code
   3. IDE checks the code without using the Java installation
   4. IDE uses the compiler of the Java installation 
2. Select all correct statements:
   1. All the classes used by the application have to be listed on the classpath
   2. The locations of all the classes used by the application have to be listed on the classpath
   3. The compiler can find a class if it is in the folder listed on the classpath
   4. Classes of the main package do not need to be listed on the classpath
3. Select all correct statements:
   1. All the .jar files used by the application have to be listed on the classpath
   2. The locations of all the .jar files used by the application have to be listed on the classpath 
   3. The JVM can find a class only if it is in the .jar file listed on the classpath
   4. Every class can have the main() method
4. Select all correct statements:
   1. Every .jar file that has a manifest is an executable 
   2. If the -jar option is used by the java command, the classpath option is ignored
   3. Every .jar file has a manifest
   4. An executable .jar is a ZIP file with a manifest
5. Select all correct statements:
   1. Class loading and linking can work in parallel on different classes
   2. Class loading moves the class to the execution area
   3. Class linking connects two classes
   4. Class linking uses memory references
6. Select all correct statements:
   1. Class initialization assigns values to the instance properties
   2. Class initialization happens every time the class is referred to by another class
   3. Class initialization assigns values to static properties
   4. Class initialization provides data to the instance of java.lang.Class
7. Select all correct statements:
   1. Class instantiation may never happen
   2. Class instantiation includes object properties initialization
   3. Class instantiation includes memory allocation on a heap
   4. Class instantiation includes executing a constructor code
8. Select all correct statements:
   1. Method execution includes binary code generation
   2. Method execution includes source code compilation
   3. Method execution includes reusing the binary code produced by the Just-In-Time compiler
   4. Method execution counts how many times every method was called
9. Select all correct statements:
   1. Garbage collection starts immediately after the System.gc() method is called
   2. The application can be terminated with or without an error code
   3. The application exits as soon as an exception is thrown
   4. The main thread is a user thread
10. Select all correct statements:
    1. JVM has memory areas shared across all threads
    2. JVM has memory areas not shared across threads
    3. Class metadata is shared across all threads
    4. Method parameter values are not shared across threads
11. Select all correct statements:
    1. Classloader populates the method area
    2. Classloader allocates memory on a heap
    3. Classloader writes to the .class file
    4. Classloader resolves method references
12. Select all correct statements:
    1. The execution engine allocates memory on a heap
    2. The execution engine terminates the application
    3. The execution engine runs garbage collection
    4. The execution engine initializes static fields not initialized by a programmer
13. Select all correct statements: 
    1. The number of transactions per second that a database can support is a throughput measure
    2. When the garbage collector pauses the application it is called stop-all-things
    3. How slowly the website returns data is a responsiveness measure
    4. The garbage collector clears the CPU queue of jobs 
14. Select all correct statements: 
    1. Object age is measured by the number of seconds since it was created
    2. The older the object, the more probable it is going to be removed from the memory
    3. Cleaning the old generation is a major collection
    4. Moving an object from one area of the young generation to another area of the young generation is a minor collection
15. Select all correct statements:
    1. The garbage collector can be tuned by setting the parameters of the javac command
    2. The garbage collector can be tuned by setting the parameters of the java command
    3. The garbage collector works with its own logic and cannot change its behavior based on the set parameters
    4. Cleaning the old generation area requires a stop-the-world pause