ISDS 505 Exam 1 Latest 2025 Questions and Answers 100% Accuracy

ISDS 505 Exam 1 Latest 2025 Questions and Answers 100% Accuracy

Which of the following is NOT a valid C# identifier

Select one:

a. _order

b. a

c. this

d. a1 - (answers)c. this




What is NOT considered a keyword by the C# language?

Select one:

a. catch
你是想要一篇“眼睛容易阅读的”

b. global 中文文章，还是一篇关于“眼睛”
主题的中文文章？
c. implicit

d. static - (answers)b. global




In Object-oriented programming language, the ability to create methods that act appropriately

depending on the context is called _________.

Select one:

,a. inheritance

b. encapsulation

c. instance

d. polymorphism - (answers)d. polymorphism




in "using System;", what is "System" referring to?

Select one:

a. class

b. variable

c. namespace

d. method - (answers)c. namespace
你是想要一篇“眼睛容易阅读的”
中文文章，还是一篇关于“眼睛”
主题的中文文章？
Which of the following pairs is an example of a class and an object, in that order?

Select one:

a. animal and bear

b. cup and glass

c. CSUF and university

d. car and vehicle - (answers)a. animal and bear

,What is the value of the expression 3+4*2 ?

Select one:

a. 10

b. 11

c. 5

d. 14 - (answers)b. 11




What is the value of 5>=3?

Select one:

a. 1
你是想要一篇“眼睛容易阅读的”
b. 0 中文文章，还是一篇关于“眼睛”
主题的中文文章？
c. false

d. true - (answers)d. true




In C#, you use the ____ data type to hold a series of characters.

Select one:

a. string

, b. int

c. sbyte

d. char - (answers)a. string




Assume you have a variable declared as int var1=5; What is the value of 27%var1 ?

Select one:

a. 5

b. 2

c. 4

d. 0 - (answers)b. 2



你是想要一篇“眼睛容易阅读的”
Assume that you declared a double variable called unitPrice which is used to get an item's unit
中文文章，还是一篇关于“眼睛”
主题的中文文章？
price. Which of the following will display the unit price in a currency format with 2 decimal

places?

Select one:

a. Console.WriteLine(unitPrice.ToString());

b. Both Console.WriteLine(unitPrice.ToString("C")); and

Console.WriteLine(unitPrice.ToString("C2"));

c. Console.WriteLine(unitPrice.ToString("C"));