A developer is refactoring a legacy system. The current code uses global variables and functions that modify them directly, making the system hard to test. The team wants to encapsulate state and behavior together. Which paradigm shift best addresses this concern?

Use procedural programming with more modular functions.

Switch to functional programming, using pure functions and immutable data.

Move to a scripting language for faster iteration.

Adopt object-oriented programming, grouping related data and functions into classes.

When selecting a programming language for a project, which factor is most important to consider?

The number of lines of code in the language

The project's requirements and the team's expertise

The color of the language's logo

The language's popularity on social media

In programming, what is the purpose of a loop?

To execute a block of code repeatedly

To make a decision based on a condition

A team is developing a real-time analytics dashboard that must handle thousands of concurrent connections and process streaming data with low latency. The team has strong experience in JavaScript and wants to reuse code across the client and server. However, the data processing requires heavy CPU-bound calculations. Which language choice best balances these constraints?

Use Java with a thread pool, because it is object-oriented and robust.

Use Python with a web framework, because it is easy to write and has many libraries.

Use JavaScript on the server with Node.js, because it handles concurrency well and allows code reuse.

Use a compiled language like Go for the server, and JavaScript for the client.

CompTIATech+

Domain 4Objective 1

Programming Languages FC0-U71 Practice Questions (Page 2)

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 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

6concepts

13%of the exam

Questions 6–10

6application · medium
A developer writes the following code: x = 5; y = x++; print(y);. What is the output in most C-like languages?
Select an answer first
7application · medium
A developer is refactoring a legacy system. The current code uses global variables and functions that modify them directly, making the system hard to test. The team wants to encapsulate state and behavior together. Which paradigm shift best addresses this concern?
Select an answer first
8foundation · easy
When selecting a programming language for a project, which factor is most important to consider?
Select an answer first
9foundation · easy
In programming, what is the purpose of a loop?
Select an answer first
10expert · hard
A team is developing a real-time analytics dashboard that must handle thousands of concurrent connections and process streaming data with low latency. The team has strong experience in JavaScript and wants to reuse code across the client and server. However, the data processing requires heavy CPU-bound calculations. Which language choice best balances these constraints?
Select an answer first

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Programming Languages FC0-U71 Practice Questions (Page 2)

Questions 6–10

A developer writes the following code: x = 5; y = x++; print(y);. What is the output in most C-like languages?

A developer is refactoring a legacy system. The current code uses global variables and functions that modify them directly, making the system hard to test. The team wants to encapsulate state and behavior together. Which paradigm shift best addresses this concern?

When selecting a programming language for a project, which factor is most important to consider?

In programming, what is the purpose of a loop?

Keep studying — Software development concepts