Microsoft MTA 98-388 Questions & Answers

• Question 1:

  The question requires that you evaluate the underlined text to determine if it is correct. You have the following class definition:

  

  The logError method can be invoked by code in all classes in the same package as the Logger class.

  Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

  A. No change is needed

  B. only by the Logger class

  C. only by the Logger class and classes in the same package that inherit from it

  D. by all classes in all packages

  Correct Answer: C

• Question 2:

  You work as a Java programmer.

  You need to convert a numeric String to a primitive double value.

  What code segment should you use?

  A. Double.valueOf(numberString);

  B. double.parseDouble(numberString);

  C. String.parseDouble(numberString);

  D. Double.parseDouble(numberString);

  Correct Answer: B

  References: https://www.javacodeexamples.com/convert-string-to-primitive-example/140

• Question 3:

  You need to evaluate the following code segment:

  

  What happens when the code segment is run?

  A. iNum has a value of 0.

  B. An exception is thrown.

  C. iNum has a value of 2.

  D. iNum has a value of 3.

  Correct Answer: C

• Question 4:

  You need to analyze the following code segment. Line numbers are included for reference only.

  

  What is the output of line 12 when you run printInt()?

  A. 0

  B. 1

  C. 2

  D. 3

  Correct Answer: A

• Question 5:

  The question requires that you evaluate the underlined text to determine if it is correct.

  You should use an int data type to store the numeric value 3,000,000,000 (3 billion) so that the least amount of memory is used.

  Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

  A. No change is needed.

  B. a short

  C. a byte

  D. a long

  Correct Answer: D

• Question 6:

  You have the following code segment. Line numbers are included for reference only.

  

  What is the output of line 07?

  A. -44

  B. -40.0

  C. 40.0

  D. 44.0

  Correct Answer: B

• Question 7:

  HOTSPOT

  You need to evaluate the following code segment. Line numbers are included for reference only.

  

  Use the drop-down menus to select the answer choice that answers each question based on the information presented in the code. NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

• Question 8:

  HOTSPOT

  You are interviewing for a job as a Java developer.

  You are presented with the following code. Line numbers are included for reference only.

  

  You need to evaluate what happens when the code runs.

  Use the drop-down menus to select the answer choice that answers each question based on the information presented in the code.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

• Question 9:

  HOTSPOT

  You need to evaluate the following Java program. Line numbers are included for reference only.

  

  Use the drop-down menus to select the answer choice that answers each question based on the information presented in the code. NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  References: https://docs.oracle.com/javase/tutorial/java/data/numberformat.html

• Question 10:

  HOTSPOT

  You write the following code:

  

  You need to determine the values of the data1, data2, data3, and data4 variables.

  Use the drop-down menus to select the answer choice that answers each question based on the information presented in the code.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  References: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html