An attacker uses username-and-password pairs exposed in one breach to attempt sign-ins to another service. Which threat is this?
6 Network Security Online Quiz Questions
Use this free practice quiz with 20 questions to review 6 Network Security, test your knowledge, and prepare for your next test or exam.
True or false: Symmetric encryption uses the same secret key to encrypt and decrypt data.
- A
True
- B
False
establishes who or what is requesting access.
What is the fixed-length output produced by hashing data called?
A company wants a control that filters HTTP/HTTPS requests to help protect its web application from application-layer attacks. Which technology best fits this purpose?
- A
A honeypot
- B
A SIEM
- C
A WAF
- D
A network access control system
Select all combinations that use evidence from at least two different MFA factor categories.
- A
A password and a hardware security token
- B
A password and a second password
- C
A fingerprint and a password
- D
A hardware token and an authenticator-app approval
checks a connecting device or user against policy and may deny, limit, or quarantine a device that does not meet requirements.
True or false: An intrusion detection system (IDS) monitors and alerts, while an intrusion prevention system (IPS) can block or otherwise stop detected traffic.
- A
True
- B
False
What access-control model makes decisions using attributes such as the user, device, resource, location, or time?
A public web server is placed in a DMZ and must retrieve data from an internal database. Which firewall policy best follows the described DMZ design?
- A
Allow the web server unrestricted access to every internal system so it can respond quickly.
- B
Allow only the required application traffic from the web server to the internal database.
- C
Move the database into the DMZ and allow all Internet connections to it.
- D
Allow no traffic between the web server and the database, even when the application requires it.
Select all design choices that can help limit lateral movement by restricting communications within or between network zones.
- A
Separate guest Wi-Fi from employee workstations and restrict traffic between the zones.
- B
Allow every network segment to communicate freely so that users can move between systems without restriction.
- C
Rely on a single perimeter firewall while leaving internal traffic unrestricted.
- D
Apply narrow traffic controls to individual workloads or services.
A user on a corporate network requests access to a sensitive application. Describe how a zero-trust design should decide whether to grant access and what limits or checks it should apply.
An organization deploys a decoy system to attract and observe suspicious activity. How should it treat this system in relation to production assets?
- A
Connect it to production assets so suspicious activity can spread and be observed.
- B
Isolate it from production assets while using it to attract and observe suspicious activity.
- C
Use it as the primary system for authenticating all employees.
- D
Configure it to replace backups for critical services.
A service is flooded with traffic until legitimate users can no longer access it. What broad attack category does this describe?
Malware spreads from one device to others across a network without anyone opening an infected file. Which type of malware best fits this behavior?
- A
A virus
- B
A worm
- C
Ransomware
- D
Spyware
What defensive technology filters HTTP/HTTPS traffic to protect web applications from application-layer attacks?
An organization wants employees to use multifactor authentication. Which sign-in method meets the requirement for evidence from at least two different factor categories?
- A
Two different passwords
- B
A password and a PIN
- C
A password and an authenticator-app approval
- D
A password entered twice
True or false: Under a zero-trust approach, a user or device should not be trusted implicitly just because it is inside the corporate network.
- A
True
- B
False
An application grants access only when the user's role, the device's status, and the request's location meet policy conditions. Which access-control model best describes this approach?
- A
Assigning permissions to job roles and assigning users to those roles
- B
Evaluating user, device, resource, location, or time attributes
- C
Allowing access based only on a password
- D
Recording user activity for later review
A network team wants a system that monitors traffic for suspicious activity and alerts analysts but does not block the traffic. Which technology best fits that requirement?
- A
IDS
- B
IPS
- C
WAF
- D
Proxy