- A
MAC address
Why wrong: MAC addresses are used for local delivery on the same network segment, not for routing across networks.
- B
IP address
IP addresses are hierarchical and routable, allowing packets to be forwarded across multiple networks to the destination.
- C
Port number
Why wrong: Port numbers identify specific applications or services on a host, not the host itself.
- D
Default gateway
Why wrong: The default gateway is the router that sends packets to other networks; it is not the destination address.
Question 339 of 520
N10-009 Networking Concepts Practice Question
This N10-009 practice question tests your understanding of networking concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network administrator needs to ensure that data sent from a host arrives at the correct destination on a different network. Which of the following provides the logical address used for this purpose in IPv4?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
IP address
In IPv4, the logical address used to route data between different networks is the IP address. The IP address contains a network portion that routers use to forward packets across network boundaries, ensuring the data reaches the correct destination network and host.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
MAC address
Why it's wrong here
MAC addresses are used for local delivery on the same network segment, not for routing across networks.
When this WOULD be correct
A question asking which address is used to deliver a frame within the same local network segment, or which address is resolved via ARP for local delivery, would have MAC address as the correct answer.
- ✓
IP address
Why this is correct
IP addresses are hierarchical and routable, allowing packets to be forwarded across multiple networks to the destination.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Port number
Why it's wrong here
Port numbers identify specific applications or services on a host, not the host itself.
When this WOULD be correct
A question asking: 'Which identifier is used by a web server to distinguish between multiple services (e.g., HTTP vs HTTPS) on the same IP address?' would make port number the correct answer, as it differentiates applications on a host.
- ✗
Default gateway
Why it's wrong here
The default gateway is the router that sends packets to other networks; it is not the destination address.
When this WOULD be correct
A question asks: 'A host needs to send data to a server on a different subnet. Which network component must be configured on the host to enable this communication?' In that context, the default gateway is the correct answer.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The N10-009 exam frequently reuses these exact scenarios with slightly different constraints.
✓IP addressCorrect answer▾
Why this is correct
IP addresses are hierarchical and routable, allowing packets to be forwarded across multiple networks to the destination.
✗MAC addressWrong answer — click to see why▾
Why this is wrong here
MAC addresses operate at Layer 2 (Data Link) and are used for local network delivery, not for routing across different networks. IPv4 uses IP addresses as logical addresses to identify hosts on different networks.
★ When this WOULD be the correct answer
A question asking which address is used to deliver a frame within the same local network segment, or which address is resolved via ARP for local delivery, would have MAC address as the correct answer.
Why candidates choose this
Candidates may confuse MAC addresses with IP addresses because both are used in network communication, and MAC addresses are essential for final delivery, but they are not used for cross-network routing.
✗Port numberWrong answer — click to see why▾
Why this is wrong here
Port numbers identify specific processes or services on a host (transport layer), not the destination network or host itself. The question asks for the logical address used to reach a different network, which is the IP address (network layer).
★ When this WOULD be the correct answer
A question asking: 'Which identifier is used by a web server to distinguish between multiple services (e.g., HTTP vs HTTPS) on the same IP address?' would make port number the correct answer, as it differentiates applications on a host.
Why candidates choose this
Candidates may confuse port numbers with network addressing because both are used in communication, and port numbers are often paired with IP addresses in socket pairs, leading to the misconception that they help route data across networks.
✗Default gatewayWrong answer — click to see why▾
Why this is wrong here
The default gateway is a router's IP address used to forward traffic to other networks, but it is not the logical address of the destination host. The question asks for the logical address that identifies the destination host on a different network, which is the IP address.
★ When this WOULD be the correct answer
A question asks: 'A host needs to send data to a server on a different subnet. Which network component must be configured on the host to enable this communication?' In that context, the default gateway is the correct answer.
Why candidates choose this
Candidates may confuse the default gateway with the destination address, thinking that the gateway provides the logical address for reaching other networks, but the gateway is just the next hop, not the final destination's address.
Analysis generated from the official N10-009blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The N10-009 exam often tests the distinction between Layer 2 (MAC) and Layer 3 (IP) addressing, trapping candidates who confuse local delivery with inter-network routing.
Detailed technical explanation
How to think about this question
IPv4 addresses are 32-bit numbers divided into network and host portions using a subnet mask (e.g., 255.255.255.0). Routers examine the destination IP address and consult their routing table (RIB) to determine the next-hop interface, decrementing the TTL field per RFC 791. In a real-world scenario, a host on 192.168.1.0/24 sending to 10.0.0.5/8 must use the default gateway's IP address to forward the packet, as the destination network differs.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the N10-009 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Networking Concepts — study guide chapter
Learn the concepts, then practise the questions
- →
Networking Concepts practice questions
Targeted practice on this topic area only
- →
All N10-009 questions
520 questions across all exam domains
- →
CompTIA Network+ N10-009 study guide
Full concept coverage aligned to exam objectives
- →
N10-009 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related N10-009 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Networking Concepts practice questions
Practise N10-009 questions linked to Networking Concepts.
Network Implementation practice questions
Practise N10-009 questions linked to Network Implementation.
Network Operations practice questions
Practise N10-009 questions linked to Network Operations.
Network Security practice questions
Practise N10-009 questions linked to Network Security.
Network Troubleshooting practice questions
Practise N10-009 questions linked to Network Troubleshooting.
Network+ network fundamentals practice questions
Practise N10-009 questions linked to Network+ network fundamentals.
Practice this exam
Start a free N10-009 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this N10-009 question test?
Networking Concepts — This question tests Networking Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: IP address — In IPv4, the logical address used to route data between different networks is the IP address. The IP address contains a network portion that routers use to forward packets across network boundaries, ensuring the data reaches the correct destination network and host.
What should I do if I get this N10-009 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More N10-009 practice questions
- Which of the following network devices operates primarily at Layer 2 of the OSI model and uses MAC addresses to forward…
- Which of the following is a characteristic of UDP when compared to TCP?
- Which of the following IPv6 addresses is a valid link-local address?
- Which of the following security mechanisms requires a user to authenticate before gaining access to the wired network at…
- Which of the following network protocols operates at the Transport layer of the OSI model and provides connection-orient…
- Which of the following is a characteristic of a connectionless protocol at the transport layer?
Last reviewed: Jun 11, 2026
This N10-009 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the N10-009 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.