A developer is building a contact list app. Each contact has a name, a phone number, and an email address. The app needs to store all contacts and allow the developer to retrieve a contact by name. Which data structure is most appropriate?

A dictionary where each key is a contact name and each value is a list of the contact's details

A developer needs to store a collection of key-value pairs where each key is a product ID (an integer) and each value is the product name (a string). The program will frequently need to look up a product name by its ID. Which data type is most appropriate?

Dictionary with integer keys and string values

CompTIATech+

Domain 4Objective 2

Data Types FC0-U71 Practice Questions (Page 3)

Part of the Software development concepts domain, which accounts for 13% of the FC0-U71 exam. CompTIA does not publish an official question count, but from its 60-minute exam (~25–40 total, ~3–5 in this domain), expect 1–1 from this objective — we provide 17 practice questions to prepare you well beyond it. (estimate)

17questions here

4free pages

5concepts

13%of the exam

Questions 11–15

11application · medium
A developer is building a contact list app. Each contact has a name, a phone number, and an email address. The app needs to store all contacts and allow the developer to retrieve a contact by name. Which data structure is most appropriate?
Select an answer first
12foundation · easy
What is the result of the expression 7 / 2 in a language where both operands are integers?
Select an answer first
13application · medium
A developer needs to store the names of all students in a class. The order of the names does not matter, and the developer will need to check if a specific student is in the list. Which data type is most appropriate?
Select an answer first
14expert · easy
A developer needs to store a collection of key-value pairs where each key is a product ID (an integer) and each value is the product name (a string). The program will frequently need to look up a product name by its ID. Which data type is most appropriate?
Select an answer first
15foundation · easy
Which of the following is a primitive data type used to represent a true or false value?
Select an answer first

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Data Types FC0-U71 Practice Questions (Page 3)

Questions 11–15

A developer is building a contact list app. Each contact has a name, a phone number, and an email address. The app needs to store all contacts and allow the developer to retrieve a contact by name. Which data structure is most appropriate?

What is the result of the expression 7 / 2 in a language where both operands are integers?

A developer needs to store the names of all students in a class. The order of the names does not matter, and the developer will need to check if a specific student is in the list. Which data type is most appropriate?

A developer needs to store a collection of key-value pairs where each key is a product ID (an integer) and each value is the product name (a string). The program will frequently need to look up a product name by its ID. Which data type is most appropriate?

Which of the following is a primitive data type used to represent a true or false value?

Keep studying — Software development concepts