Network Device Quiz: Switch, Router or Firewall?

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| Questions: 20 | Updated: Jul 2, 2026
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1. A Layer 2 switch forwards frames based on destination ____ addresses.

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About This Quiz
Network Device Quiz: Switch, Router Or Firewall? - Quiz

Test your understanding of core Network Devices (Network+) by identifying when to use switches, routers, and firewalls. This quiz covers the functions, features, and operational roles of each device in network architecture. Strengthen your ability to distinguish between Layer 2 switching, Layer 3 routing, and security filtering\u2014essential skills for network... see moreadministration and CompTIA certification. see less

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2. A firewall's primary role in network security is to enforce access control ____ and protect against unauthorized connections.

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3. Which device learns the MAC addresses of connected devices and builds a forwarding table?

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4. Routers and firewalls both operate at Layer 3, but firewalls add ____ functionality.

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5. Port-based VLANs are configured on which device?

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6. A firewall rule that denies all traffic except what is explicitly allowed follows which principle?

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7. Which device requires IP address configuration to function in a network?

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8. Switches reduce network congestion by creating ____ domains.

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9. A firewall with deep packet inspection examines data at which layer?

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10. Which of the following is a primary function of a router?

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11. A switch operates primarily at which OSI layer?

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12. Which device is deployed at the network perimeter to block malicious traffic?

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13. Routers use ____ tables to determine the best path for packet delivery.

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14. A managed switch can support VLANs and operate at which layer(s)?

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15. Stateful inspection is a security feature most commonly associated with which device?

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16. Which device operates at Layer 3 of the OSI model?

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17. A firewall primarily protects a network by filtering ____ and denying unauthorized access.

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18. Which device makes routing decisions based on IP addresses?

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19. A router is responsible for forwarding packets between different ____.

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20. Which device uses MAC address tables to forward frames?

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A Layer 2 switch forwards frames based on destination ____ addresses.
A firewall's primary role in network security is to enforce access...
Which device learns the MAC addresses of connected devices and builds...
Routers and firewalls both operate at Layer 3, but firewalls add ____...
Port-based VLANs are configured on which device?
A firewall rule that denies all traffic except what is explicitly...
Which device requires IP address configuration to function in a...
Switches reduce network congestion by creating ____ domains.
A firewall with deep packet inspection examines data at which layer?
Which of the following is a primary function of a router?
A switch operates primarily at which OSI layer?
Which device is deployed at the network perimeter to block malicious...
Routers use ____ tables to determine the best path for packet...
A managed switch can support VLANs and operate at which layer(s)?
Stateful inspection is a security feature most commonly associated...
Which device operates at Layer 3 of the OSI model?
A firewall primarily protects a network by filtering ____ and denying...
Which device makes routing decisions based on IP addresses?
A router is responsible for forwarding packets between different ____.
Which device uses MAC address tables to forward frames?
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