Free Practice Quiz Question List

8 Network Security Basics Online Quiz Questions

Use this free practice quiz with 20 questions to review 8 Network Security Basics, test your knowledge, and prepare for your next test or exam.

20 questions
01
Written response
1 point

A small business discovers malicious software that has locked its files and is preventing staff from accessing them. What type of malware could cause this?

02
True or false
1 point

An attacker exploits a known weakness in an unpatched server to gain access. The attacker is a threat, and the unpatched weakness is a vulnerability. Is this statement true or false?

  1. A

    True

  2. B

    False

03
Choose one
1 point

A clinic wants its staff to be able to use patient scheduling systems whenever needed. Which security principle is most directly concerned with this goal?

  1. A

    Confidentiality

  2. B

    Availability

  3. C

    Integrity

  4. D

    Least privilege

04
Fill in the blank
1 point

Separating systems into zones and limiting traffic between them is called network .

05
Written response
1 point

A support account needs to reset passwords but does not need permission to change network-wide security settings. Which principle calls for giving that account only the access required for its task?

06
Choose one
1 point

A company configures a firewall to allow required web traffic. Which limitation should its security team still account for?

  1. A

    It automatically repairs vulnerable devices.

  2. B

    It makes every connection safe once a rule is created.

  3. C

    It may not stop an attack that uses an allowed connection.

  4. D

    It prevents all unauthorized changes to stored information.

07
Choose all
1 point

A team is hardening a newly deployed server. Select all actions that align with the recommended secure configuration and access practices.

  1. A

    Install security updates.

  2. B

    Change default credentials.

  3. C

    Keep default credentials for convenience.

  4. D

    Disable unused services.

  5. E

    Limit administrative access.

08
True or false
1 point

A laptop is encrypted, so a staff member assumes that a stolen account used to access it cannot pose a security risk. Is this assumption correct?

  1. A

    True

  2. B

    False

09
Fill in the blank
1 point

An attack overwhelms a service with traffic, making it difficult for legitimate users to connect. This is a attack.

10
Choose one
1 point

A browser exchanges sensitive information with a website over a network. Which kind of encryption is TLS intended to help provide for that exchange?

  1. A

    Encryption at rest

  2. B

    Encryption in transit

  3. C

    Network segmentation

  4. D

    A tested backup

11
Choose all
1 point

After a suspected intrusion, a team wants to investigate what happened and restore important data if necessary. Select all measures that directly support these two goals.

  1. A

    Keep logs of system activity.

  2. B

    Allow every network connection by default.

  3. C

    Maintain tested backups.

  4. D

    Rely on encryption alone to restore deleted data.

12
Open ended
1 point

A small office uses a firewall but is concerned that a single safeguard may not be enough. Describe how it could apply defense in depth, naming at least two complementary safeguards and explaining what each contributes.

13
Written response
1 point

A business finds that malicious software has locked its files and is preventing staff from accessing them. What type of malware could cause this?

14
Choose one
1 point

An employee receives a deceptive message directing them to a fake sign-in page that collects their password. Which threat best describes this tactic?

  1. A

    Network segmentation

  2. B

    Eavesdropping

  3. C

    Phishing

  4. D

    A denial-of-service attack

15
Choose one
1 point

A team keeps tested backups and redundant systems so employees can continue using important services if one system fails. Which security goal are these measures primarily supporting?

  1. A

    Confidentiality

  2. B

    Integrity

  3. C

    Availability

  4. D

    Least privilege

16
Choose one
1 point

An attacker exploits a server that has not received a security update. Which statement correctly distinguishes the threat from the vulnerability?

  1. A

    The threat is the unpatched server, and the vulnerability is the attacker.

  2. B

    The unpatched server is a vulnerability that a threat may exploit.

  3. C

    The unpatched server is an attack, while the threat is the resulting damage.

  4. D

    A threat and a vulnerability mean the same thing in this situation.

17
True or false
1 point

True or false: A firewall alone guarantees that a system cannot be attacked through a connection its rules allow.

  1. A

    True

  2. B

    False

18
Written response
1 point

An organization gives each employee account only the permissions needed to perform that employee's tasks. What security principle does this apply?

19
Choose one
1 point

A small organization hosts a public web server and has staff workstations on its network. Which firewall policy best follows the principle of permitting only necessary traffic?

  1. A

    Allow every incoming connection so legitimate users are never blocked.

  2. B

    Allow only required services to reach the public server and block unsolicited connections to staff workstations.

  3. C

    Block all traffic to the public server, but allow all traffic to staff workstations.

  4. D

    Use the firewall to replace software updates and account access controls.

20
Choose one
1 point

A company encrypts sensitive files on employee laptops. Which statement best describes a remaining security limitation?

  1. A

    Encryption makes a compromised device safe as long as the files are encrypted.

  2. B

    Encryption prevents unauthorized access even if an account is stolen.

  3. C

    Encryption helps protect data, but does not by itself make a compromised device or stolen account safe.

  4. D

    Encryption guarantees that data remains accurate and available under all circumstances.