Free CompTIA Tech+ Practice Test

CompTIA Tech+ Practice Test

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Today's 10 CompTIA Tech+ questions

Use this CompTIA Tech+ practice test to review CompTIA Tech+ FC0-U71. Questions rotate daily and each answer links back to the source used to write it.

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Question 1 of 10

Objective 5.2 Explain database concepts and the purpose of a database. Data and Database Fundamentals (13%)

An application closes and the computer later restarts, but its saved customer records remain available in the database. Which database characteristic is MOST directly demonstrated?

Concept tested:

Source:PostgreSQL Documentation — Tutorial

Question 2 of 10

Objective 1.3 Compare and contrast common units of measure. IT Concepts and Terminology (13%)

A storage vendor advertises a drive as 1 TB using decimal units. Why might an operating system report a numerically smaller capacity when using binary-based units?

Concept tested:

Question 3 of 10

Objective 3.4 Given a scenario, configure and use web browser features. Applications and Software (18%)

A technician must preserve the exact URL of a frequently used vendor support page for one-click future access. Which browser feature BEST fits?

Concept tested:

Question 4 of 10

Objective 4.1 Compare and contrast programming language categories. Software Development Concepts (13%)

A database analyst needs to retrieve all records where `status = 'open'` and sort the result by date. Which language category is MOST appropriate?

Concept tested:

Question 5 of 10

Objective 2.2 Explain the purpose of common internal computing components. Infrastructure (24%)

A user can open one large application successfully, but performance collapses when many applications and browser tabs are opened together. Storage has ample free space. Which component should the technician evaluate FIRST for capacity pressure?

Concept tested:

Question 6 of 10

Objective 5.3 Compare and contrast various database structures. Data and Database Fundamentals (13%)

The `Orders` table has its own primary key `OrderID`. Its `CustomerID` column must reject any value that does not correspond to an existing `Customers.CustomerID` value. Which constraint MOST directly enforces that cross-table rule?

Concept tested:

Question 7 of 10

Objective 3.2 Explain the purpose of operating systems. Applications and Software (18%)

A user connects a webcam, and the operating system detects it, loads the appropriate driver, and makes it available to conferencing software. Which OS responsibility is MOST directly demonstrated?

Concept tested:

Question 8 of 10

Objective 6.3 Explain password best practices. Security (19%)

A company cannot immediately eliminate passwords for a remote portal but wants stolen passwords alone to be insufficient for sign-in. Which change provides the MOST direct improvement?

Concept tested:

Question 9 of 10

Objective 6.1 Explain fundamental security concepts and frameworks. Security (19%)

A user successfully signs in with a password and a phone prompt, but the application still denies access to the payroll page because the account lacks the required role. Which statement BEST describes the two results?

Concept tested:

Question 10 of 10

Objective 4.2 Identify fundamental data types and their characteristics. Software Development Concepts (13%)

A monitoring program stores `door_open` and uses the value directly in a condition: if the value is true, trigger an alert; otherwise, do nothing. No third state or numeric magnitude is required. Which data type is the MOST semantically appropriate?

Concept tested:

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The free daily CompTIA Tech+ set includes crawlable question text, answer choices, correct answer labels, objective mapping, and source links. Only the first SEO card includes answer explanations and any extra learning features. Pro-only bank questions stay locked; this section mirrors only the 10 free daily questions already shown on this page.

Question 1 An application closes and the computer later restarts, but its saved customer records remain available in the database. Which database characteristic is MOST directly demonstrated?

Answer choices

A. Persistence
B. Private browsing
C. Volatile memory only
D. Screen mirroring

Correct answer

Persistence

Persistence means stored data remains available beyond the lifetime of a particular program process or session.

Wrong-answer review

B. Private browsing: Private browsing concerns browser history/storage behavior.
C. Volatile memory only: Volatile memory loses contents without power.
D. Screen mirroring: Screen mirroring concerns displays.

Extra learning features

Why candidates miss this

The distractor 'Private browsing' is tempting because it relates to browser data. However, persistence refers to the database's ability to retain data beyond the application's session, not browser-specific browsing behavior. The decisive clue is the mention of the computer restarting, indicating a system-level persistence requirement. Likely wrong answer: Private browsing Review focus: PostgreSQL Documentation — Tutorial

Why this matters

If an application closes and the computer restarts, but its saved customer records remain available in the database, this demonstrates persistence. Without persistence, the application's work would be lost upon restart, leading to data loss and significant operational disruption, potentially costing the business lost sales and impacting customer trust. The ability to maintain data across sessions is fundamental to reliable database systems.

Objective/domain: Data and Database Fundamentals (13%)

Source: PostgreSQL Documentation — Tutorial

Question 2 A storage vendor advertises a drive as 1 TB using decimal units. Why might an operating system report a numerically smaller capacity when using binary-based units?

Answer choices

A. The operating system converts bytes into bits before displaying capacity.
B. A decimal TB and a binary TiB use different powers as their multipliers.
C. The drive loses capacity each time it is formatted.
D. SSDs permanently reserve exactly 12.5% of space for encryption.

Correct answer

A decimal TB and a binary TiB use different powers as their multipliers.

Objective/domain: IT Concepts and Terminology (13%)

Source: NIST — Definitions of the SI Units: Binary Prefixes

Question 3 A technician must preserve the exact URL of a frequently used vendor support page for one-click future access. Which browser feature BEST fits?

Answer choices

A. Bookmark
B. Private mode
C. Cache deletion
D. Search-engine change

Correct answer

Bookmark

Objective/domain: Applications and Software (18%)

Source: Google Chrome Help — Create, find and edit bookmarks

Question 4 A database analyst needs to retrieve all records where `status = 'open'` and sort the result by date. Which language category is MOST appropriate?

Answer choices

A. Markup language
B. Firmware bytecode
C. Assembly language
D. Query language

Correct answer

Query language

Objective/domain: Software Development Concepts (13%)

Source: PostgreSQL Documentation — Tutorial

Question 5 A user can open one large application successfully, but performance collapses when many applications and browser tabs are opened together. Storage has ample free space. Which component should the technician evaluate FIRST for capacity pressure?

Answer choices

A. Firmware
B. RAM
C. NIC
D. Power supply

Correct answer

RAM

Objective/domain: Infrastructure (24%)

Source: Intel — How to Choose RAM for a Gaming PC

Question 6 The `Orders` table has its own primary key `OrderID`. Its `CustomerID` column must reject any value that does not correspond to an existing `Customers.CustomerID` value. Which constraint MOST directly enforces that cross-table rule?

Answer choices

A. A second primary key on `CustomerID`
B. A DEFAULT value for `CustomerID`
C. A UNIQUE constraint on every `CustomerID` in `Orders`
D. A foreign key from `Orders.CustomerID` to `Customers.CustomerID`

Correct answer

A foreign key from `Orders.CustomerID` to `Customers.CustomerID`

Objective/domain: Data and Database Fundamentals (13%)

Source: PostgreSQL Documentation — Constraints

Question 7 A user connects a webcam, and the operating system detects it, loads the appropriate driver, and makes it available to conferencing software. Which OS responsibility is MOST directly demonstrated?

Answer choices

A. Database query optimization
B. Device management
C. WAN routing
D. Password hashing policy

Correct answer

Device management

Objective/domain: Applications and Software (18%)

Source: Microsoft Learn — Operating System Classes

Question 8 A company cannot immediately eliminate passwords for a remote portal but wants stolen passwords alone to be insufficient for sign-in. Which change provides the MOST direct improvement?

Answer choices

A. Require all users to share one longer password
B. Disable account lockout and logging
C. Require MFA in addition to the password
D. Store passwords in a common document

Correct answer

Require MFA in addition to the password

Objective/domain: Security (19%)

Source: NIST — How Do I Create a Good Password?

Question 9 A user successfully signs in with a password and a phone prompt, but the application still denies access to the payroll page because the account lacks the required role. Which statement BEST describes the two results?

Answer choices

A. Authorization succeeded; authentication failed
B. Authentication succeeded; authorization denied the payroll action
C. Accounting failed; availability succeeded
D. Encryption failed; authentication was irrelevant

Correct answer

Authentication succeeded; authorization denied the payroll action

Objective/domain: Security (19%)

Source: NIST CSRC — Access Management

Question 10 A monitoring program stores `door_open` and uses the value directly in a condition: if the value is true, trigger an alert; otherwise, do nothing. No third state or numeric magnitude is required. Which data type is the MOST semantically appropriate?

Answer choices

A. A list containing the strings `open` and `closed`
B. A floating-point number where 1.0 means open
C. A string containing either `yes` or `no`
D. A Boolean value

Correct answer

A Boolean value

Objective/domain: Software Development Concepts (13%)

Source: Python 3 Tutorial — Truth Value Testing

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