CompTIA Network+ Questions and Answers
100 questions organized by topic with detailed explanations
CompTIA
N10-009
100 questions
5 topics
Updated May 2026Networking Concepts
25 questions10 easy9 medium6 hard~23% of exam
Which protocol operates at UDP port 161 and is used to monitor and manage network devices by polling MIB objects?What type of transmission sends data from one sender to all devices on the network segment?Which layer of the OSI model is responsible for logical addressing and routing packets between networks?
Network Implementation
19 questions4 easy10 medium5 hard~20% of exam
An organization wants to ensure that if the primary default gateway fails, hosts automatically use a backup gateway with...A network engineer needs to configure a router so that traffic from the 192.168.1.0/24 subnet is translated to a single ...Which Spanning Tree Protocol feature allows a switch port to immediately transition to the forwarding state when connect...
Network Operations
18 questions4 easy10 medium4 hard~19% of exam
An organization has an RPO of 4 hours and an RTO of 2 hours. A ransomware attack encrypts all systems at 10:00 AM. The l...What does RTO stand for in disaster recovery planning?A change management process requires that a network change include a backout plan. Which element of a backout plan is MO...
Network Security
15 questions4 easy6 medium5 hard~14% of exam
Which security concept ensures that users are granted only the permissions necessary to perform their job functions?A company policy requires that IoT sensors on the factory floor be isolated from the corporate network to prevent latera...An attacker sends an unsolicited email impersonating a bank and asking users to click a link to update their credentials...
Network Troubleshooting
23 questions6 easy10 medium7 hard~24% of exam
A network engineer is reviewing interface statistics on a core switch. The interface shows a high number of CRC errors a...During troubleshooting, a technician discovers that two hosts on the same VLAN cannot communicate. Checking the switch, ...Which command-line tool sends ICMP echo request packets to a destination and reports whether the host is reachable and t...
All Questions
| # | Question | Topic | Difficulty |
|---|---|---|---|
| 1 | An organization has an RPO of 4 hours and an RTO of 2 hours. A ransomware attack encrypts all system... | Network Operations | hard |
| 2 | A network engineer is reviewing interface statistics on a core switch. The interface shows a high nu... | Network Troubleshooting | hard |
| 3 | During troubleshooting, a technician discovers that two hosts on the same VLAN cannot communicate. C... | Network Troubleshooting | medium |
| 4 | Which security concept ensures that users are granted only the permissions necessary to perform thei... | Network Security | easy |
| 5 | Which protocol operates at UDP port 161 and is used to monitor and manage network devices by polling... | Networking Concepts | hard |
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