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1Z0-811 Practice Exam — Free 77+ Questions

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Question 1

Question 2

Which two Java reserved words are used to implement encapsulation?

A final
B static
C public
D extends
E private

Question 3

Given the code fragment:

Question Image

Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?

A System.out.println(name + “:” + count);
B System.out.println(c.name + “:” + count);
C System.out.println(c.name + “:” + Course.count);
D System.out.println(Course.name + “:” + c.count);

Question 4

Given the code fragment:

Question Image

What is the result?

A Unknown issues.Invalid divisor.
B Unknown issues.
C Invalid divisor.
D A compilation error occurs.

Question 5

Given the code fragment:

Question Image

What is the result?

A Selected null flavor.
B Selected Chocolate flavor.
C An ArrayIndexOutofBoundsException is thrown at run time.
D Selected Chocolate flavor.Thank you!

Question 6

Given the code fragment:

Question Image

What is the result?

A A compilation error occurs.
B A runtime exception is thrown.
C Julia -Peter
D Peter -Julia

Question 7

Given the code fragment:

Question Image

What is the result?

A pen pencil erasers paper
B paper pen pencil erasers
C A compilation error occurs.
D A runtime exception is thrown.

Question 8

Which two statements are true about the Java Runtime Environment (JRE)?

A It is responsible for garbage collection.
B It interprets bytecode stored in a .class file.
C It contains the JDK and Java APIs.
D It is platform independent.
E You must install the JRE to compile a .java file.

Question 9

Identify two features of Java.

A architecture dependent
B platform independent
C single threaded
D robust

Question 10

You have a microprocessor board, such as Raspberry PI, wired to control a drone.
Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?

A Java Micro Edition
B Java Standard Edition with a Compact Profile
C Java Enterprise Edition
D Java SE Embedded

Question 11

Given the code fragment:

Question Image

Which statement is true?

A A compilation error occurs at line 5.
B A compilation error occurs at line 3.
C The code compiles without errors.
D A compilation error occurs at line 7.

Question 12

Given:

Question Image

And the code fragment:

Question Image

What is the result?

A A compilation error occurs at line n1.
B White : null
C null: null
D White : White

Question 13

Given the code fragment:

Question Image

What is the result?

A falsefalsefalsefalse
B truefalsefalsefalse
C truetruetruetrue
D truetruetruefalse

Question 14

Given these class definitions:

Question Image

Which class or classes compile?

A only MyClassB, MyClassC, and MyClassD
B only MyClassB
C MyClassA, MyClassB, MyClassC, and MyClassD
D only MyClassB and MyClassD

Question 15

Which statement is true about primitive variables?

A They can be compared with the == operator.
B They can be compared with the equals method only.
C They cannot be compared.
D They can be compared with the compareTo method only.

Question 16

You have been asked to develop a Java program that prints the elements of an array in reverse order.
Which looping statement cannot be used to meet the requirement?

A enhanced for
B standard for
C while
D do-while

Question 17

Identify two Java reserved words.

A array
B true
C this
D exception
E string

Question 18

Identify two valid data types for the operands of the addition (+) operator?

A string
B boolean
C numeric
D array

Question 19

Given:

Question Image

At which line does a compilation error occur?

A line 5
B line 2
C line 3
D line 7

Question 20

Which statement is true about exception handling?

A At least one catch block must accompany a try statement.
B All statements in a try block are executed, even if an exception occurs in the middle of the try block.
C At least one statement in a try block must throw an exception.
D All catch blocks must be ordered from general to most specific.

Question 21

Given the code fragment:

Question Image

What is the result?

A 10 2010 15 20
B A runtime exception is thrown.
C 10 2010 20
D A compilation error occurs.

Question 22

Given:

Question Image

What is the result?

A A compilation error occurs in the modify method.
B 99
C 5
D A compilation error occurs in the main method.

Question 23

Given the code fragment:

Question Image

What is the result?

A 1
B 3
C 5
D Nothing is printed.

Question 24

Given the code fragment:

Question Image

What is the result?

A [jasmine, rose, lily]
B A runtime exception is thrown.
C [jasmine, lily, lotus]
D [jasmine, rose, lotus, lily]

Question 25

Identify three features of the Java programming language.

A distributed
B direct memory management
C multithreaded
D strongly typed
E dynamically typed

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Given:

Question Image

What is the result?

A [null:-]
B [ : ]
C [null:null]
D [:null]

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