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FC0-U71 · domain

Security

Practise CompTIA Tech+ (FC0-U71) Security practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

97 questions25 easy46 medium26 hard

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What this domain covers

What to know about Security

Security questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Security exam traps

  • Answering from memory before reading the full scenario.
  • Missing a constraint such as cost, availability, security, scope or command context.
  • Choosing a broad answer when the question asks for the most specific fix.
  • Ignoring why the wrong options are tempting.

Question index

All Security questions (97)

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1

A company requires all employees to use a smart card and a PIN to access the building. This is an example of which concept?

Medium
2

Which type of malware is designed to replicate itself and spread to other computers without needing to attach to a host file?

Medium
3

An attacker gains physical access to a secure area by following an authorized employee through a door that requires a badge. This social engineering technique is known as:

Medium
4

A small business owner wants to protect customer data stored on laptops in case the devices are stolen. Which encryption method provides the best protection for the entire hard drive?

Hard
5

An employee allows a delivery person to enter a secure office building by holding the door open. The delivery person does not have an access badge. Which social engineering attack is this?

Medium
6

Which TWO of the following are effective measures to protect against ransomware attacks? (Select two.)

Medium
7

A security analyst is evaluating risks to the company's network. According to the risk formula (Risk = Likelihood × Impact), which THREE of the following are considered vulnerabilities?

Hard
8

A user receives an email from their bank asking them to click a link and verify their account information. The email contains spelling errors and the sender's address looks suspicious. Which type of social engineering attack is this?

Medium
9

A user reports that their computer has been displaying unwanted pop-up advertisements frequently. Which type of malware is most likely responsible?

Medium
10

Which of the following is a best practice for creating a strong password?

Easy
11

A security analyst discovers that a file on a server has been modified without authorization. Which element of the CIA triad has been compromised?

Hard
12

What is the primary risk of using public Wi-Fi without a VPN?

Medium
13

Which of the following is the best practice for creating strong passwords?

Medium
14

What is the primary purpose of a password manager?

Easy
15

Which component of the CIA triad ensures that data cannot be modified by unauthorized users?

Easy
16

A user is concerned about connecting to a public Wi-Fi network at a coffee shop. Which security measure can best protect their data?

Medium
17

Which of the following is the primary purpose of hashing a password before storing it in a database?

Medium
18

A company's backup strategy requires three copies of data, on two different media types, with one copy offsite. Which backup rule does this follow?

Hard
19

A company is developing a security policy. Which THREE of the following are examples of physical security controls?

Hard
20

What is the primary purpose of a network firewall?

Easy
21

Which TWO of the following are examples of multi-factor authentication?

Easy
22

A user receives an email that appears to be from their bank, asking them to click a link and verify their account details. The user suspects it is a phishing attempt. Which type of phishing attack is this most likely to be?

Medium
23

Which of the following is the strongest password?

Easy
24

An organization requires employees to use a password and a one-time code sent to their mobile phone when logging into the network. Which security principle is being implemented?

Medium
25

A user receives an email that appears to be from their bank, asking them to click a link and verify their account details. The email contains urgent language and threats of account closure. What type of attack is this?

Medium
26

A user receives an email that appears to be from their bank, asking them to click a link and verify their account. The email contains urgent language and a generic greeting. Which type of security threat is this?

Medium
27

Which element of the CIA triad is primarily concerned with ensuring that data is not accessed by unauthorized individuals?

Easy
28

Which of the following is a characteristic of a worm in the context of malware?

Easy
29

An organization uses a security model where users are granted the minimum permissions necessary to perform their job functions. This model is known as:

Hard
30

Which TWO of the following are characteristics of ransomware?

Medium
31

Which THREE of the following are effective methods to protect against malware infections? (Select THREE.)

Hard
32

An employee calls the help desk claiming to be a manager from another department and requests a password reset. This is an example of which social engineering technique?

Hard
33

Which THREE of the following are best practices for password security?

Medium
34

Which of the following best describes the 'Confidentiality' component of the CIA triad?

Easy
35

Which of the following best describes the principle of least privilege?

Easy
36

Which type of malware is disguised as legitimate software but performs malicious actions?

Medium
37

An employee is working from a coffee shop and needs to access company files. Which of the following is the most secure method?

Medium
38

What is the difference between a threat and a vulnerability?

Easy
39

Which TWO of the following are best practices for password security?

Easy
40

A company wants to implement the principle of least privilege for its employees. Which TWO of the following actions align with this principle? (Choose TWO.)

Medium
41

A company is implementing a backup strategy. Which of the following best adheres to the 3-2-1 backup rule?

Hard
42

A company implements a policy where employees must lock their computer screen when leaving their desk. Which security principle does this practice support?

Medium
43

Which of the following is the best practice for backing up data according to the 3-2-1 rule?

Easy
44

Which backup strategy involves keeping three copies of data on two different media types with one copy offsite?

Medium
45

Which of the following is a key difference between a vulnerability and a threat in cybersecurity?

Medium
46

Which of the following malware types is characterized by self-replication without needing to attach to a host file?

Medium
47

A security analyst is explaining the difference between a threat and a vulnerability. Which statement accurately describes this difference?

Hard
48

A company wants to ensure that sensitive documents are not readable if a laptop is stolen. Which of the following provides the best protection?

Medium
49

Which TWO of the following are recommended practices for physical security in an office environment? (Select two.)

Easy
50

Which of the following encryption methods is used to protect data in transit over a public network, such as the internet?

Hard
51

An organization implements a security control that requires users to swipe a smart card and then enter a PIN to access a secure facility. Which combination of authentication factors does this represent?

Hard
52

Which THREE of the following are examples of multi-factor authentication? (Select three.)

Hard
53

Which of the following is an example of multi-factor authentication?

Medium
54

An IT administrator is hardening a server. Which three of the following actions should be taken to improve security? (Select THREE.)

Hard
55

An organization adopts the 3-2-1 backup rule. Which of the following practices aligns with this rule?

Medium
56

A security analyst notices that a user's computer is running slowly and displaying many pop-up ads. Which type of malware is most likely causing this?

Hard
57

Which of the following is a characteristic of a strong password?

Easy
58

Which TWO of the following are examples of physical security controls?

Easy
59

A company is implementing physical security measures. Which two of the following are examples of physical security controls? (Select TWO.)

Medium
60

A company implements a policy requiring employees to use a password and a one-time code sent to their mobile phone when logging into the corporate network. Which security concept is being employed?

Medium
61

Which TWO of the following are examples of physical security measures? (Select TWO)

Medium
62

A user receives an email that appears to be from their bank, asking them to click a link and verify their account details. The user notices the email address is slightly misspelled (e.g., 'support@bankk.com' instead of 'support@bank.com'). Which type of attack is this?

Medium
63

Which of the following is the best practice for creating a strong password?

Easy
64

Which TWO of the following are examples of social engineering attacks? (Select TWO.)

Medium
65

Which of the following is an example of something you are in multi-factor authentication?

Medium
66

Which of the following best describes the principle of confidentiality in the CIA triad?

Easy
67

Which of the following best describes the principle of confidentiality in the CIA triad?

Easy
68

Which of the following is a characteristic of a strong password?

Easy
69

A company requires employees to use a one-time code from a smartphone app in addition to their password to log into the corporate VPN. This is an example of:

Hard
70

Which THREE of the following are characteristics of a strong password? (Select THREE)

Hard
71

A company wants to protect its network from unauthorized external access. Which of the following devices should be configured to filter traffic based on port and protocol?

Medium
72

Which of the following is a characteristic of a worm compared to a virus?

Hard
73

Which of the following best describes the principle of least privilege?

Medium
74

A security analyst discovers that a file on a server has been modified without authorization. However, the system logs show that the modification was made by an authenticated user who had legitimate access to the file. Which aspect of the CIA triad has been violated?

Hard
75

A security administrator wants to protect data at rest on a laptop that may be lost or stolen. Which of the following is the BEST solution?

Hard
76

Which of the following is an example of a physical security control?

Easy
77

An attacker gains physical access to a building by following an employee through a secured door without using a badge. This is an example of which social engineering technique?

Hard
78

What is the primary purpose of a firewall?

Medium
79

Which type of malware attaches to legitimate files and spreads when those files are executed?

Medium
80

Which TWO of the following are characteristics of a strong password? (Select TWO.)

Easy
81

A user receives a suspicious email with an attachment claiming to be an invoice. Which three practices should the user follow? (Select THREE.)

Hard
82

A company implements a policy where employees must swipe their ID card and then enter a PIN to access the server room. Which two authentication factors are being used?

Hard
83

A company's IT policy mandates data backups following the 3-2-1 rule. Which TWO of the following practices align with this rule?

Hard
84

What is the primary purpose of a password manager?

Easy
85

An organization wants to ensure that employees only have access to the data necessary to perform their job functions. Which principle should be applied?

Medium
86

An employee receives an email that appears to be from the CEO, urgently requesting a wire transfer to an external vendor. The email address looks slightly off. Which type of social engineering attack is this?

Medium
87

Which TWO of the following are examples of multi-factor authentication? (Choose TWO.)

Medium
88

A user receives an email that appears to be from their bank, asking them to click a link and verify their account details. The user notices the sender's email address is slightly misspelled. Which type of threat is this?

Medium
89

Which TWO of the following are types of malware? (Select TWO)

Easy
90

A user wants to protect their laptop in case it is stolen. Which TWO of the following measures would help protect the confidentiality of the data?

Medium
91

A company wants to ensure that data on lost laptops cannot be accessed. Which technology should be used?

Medium
92

A help desk technician receives a call from a user who says their computer is showing a message that files are encrypted and a ransom is demanded. Which TWO types of malware are most likely involved?

Medium
93

A user downloads a free game from an untrusted website. After installation, the user's computer begins displaying pop-up advertisements frequently. Which type of malware is most likely installed?

Medium
94

An employee is tailgated into a secure office building by someone without a badge. Which type of security threat does this represent?

Medium
95

What is the primary purpose of a password manager?

Easy
96

An organization implements a security policy where users must provide a password and a one-time code generated by a mobile app to log in. Which type of authentication is being used?

Hard
97

A security analyst is explaining the CIA triad to new employees. Which scenario best illustrates a breach of integrity?

Hard

Frequently asked questions

What does the Security domain cover on the FC0-U71 exam?
Security questions test whether you can apply the concept in context, not just recognise a definition.
How many questions are in this domain?
This page lists all 97 Security questions in the FC0-U71 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Security questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
CompTIA Tech+ (FC0-U71) Security Practice Questions