Quick Answer
The correct statement is that the DHCP pool is fully utilized and no more addresses are available. This is because the output shows all ten addresses in the pool, ranging from 192.168.1.10 to 192.168.1.19, are currently leased, and the current index sits at 192.168.1.11, indicating the pool has wrapped past its first available address with no free leases remaining. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your ability to interpret DHCP pool exhaustion and utilization metrics from the show ip dhcp pool command, a common troubleshooting step for verifying address availability and detecting full pools. A frequent trap is misreading the current index as the next available address—remember, the index shows the last address used for allocation, not the next free one. Memory tip: “Index is past, not last”—if the index is beyond the first address and all addresses are leased, the pool is exhausted.
This 300-410 practice question tests your understanding of dhcp (ipv4 and ipv6). Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 engineer runs the following command on Router R1:
R1# show ip dhcp pool POOL1
Pool POOL1 : Utilization mark (high/low) : 100 / 0 Subnet size (first/next) : 0 / 0 Total addresses : 10 Leased addresses : 10 Pending event : none 1 subnet is currently in the pool : Current index IP address range Leased addresses
192.168.1.11 192.168.1.10 - 192.168.1.19 10
Based on this output, which statement is correct?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
The DHCP pool has available addresses for new clients.
Why wrong: All 10 addresses are leased.
The DHCP pool is fully utilized; no more addresses are available.
Leased addresses equal total addresses.
The DHCP pool is configured with a /24 subnet.
Why wrong: The range shows only 10 addresses.
The DHCP server has a pending event causing address allocation to fail.
Why wrong: Pending event is 'none'.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The DHCP pool is fully utilized; no more addresses are available.
The output shows that all 10 addresses in the pool (192.168.1.10–192.168.1.19) are leased, and the current index is 192.168.1.11, which is beyond the first address. This means no free addresses remain, so the pool is fully utilized. Option B correctly states this condition.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The DHCP pool has available addresses for new clients.
Why it's wrong here
All 10 addresses are leased.
The DHCP pool is fully utilized; no more addresses are available.
Why this is correct
Leased addresses equal total addresses.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The DHCP pool is configured with a /24 subnet.
Why it's wrong here
The range shows only 10 addresses.
The DHCP server has a pending event causing address allocation to fail.
Why it's wrong here
Pending event is 'none'.
Common exam traps
The trap here is that candidates often misinterpret the 'Current index' as the next available address, but it merely indicates the last allocation point; the true indicator of exhaustion is the 'Leased addresses' equaling 'Total addresses'.
Trap categories for this question
Command / output trap
The range shows only 10 addresses.
Detailed technical explanation
The DHCP pool's 'Current index' tracks the next address to be offered; here it is 192.168.1.11, but since all addresses are leased, the server will skip to the end of the range and fail to allocate. In Cisco IOS, when a pool is exhausted, the router logs a 'DHCPD: no free leases' message and does not automatically reclaim expired leases until they are released or the lease time expires. This behavior is critical in networks with high churn or short lease times.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
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FAQ
DHCP (IPv4 and IPv6) — This question tests DHCP (IPv4 and IPv6) — Read the scenario before looking for a memorised answer..
The correct answer is: The DHCP pool is fully utilized; no more addresses are available. — The output shows that all 10 addresses in the pool (192.168.1.10–192.168.1.19) are leased, and the current index is 192.168.1.11, which is beyond the first address. This means no free addresses remain, so the pool is fully utilized. Option B correctly states this condition.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
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Variation 1. A network engineer runs the following command to verify DHCPv4 pool configuration on router R1: R1# show ip dhcp pool DHCP_POOL Output: Pool DHCP_POOL : Utilization mark (high/low) : 100 / 0 Subnet size (first/next) : 0 / 0 Total addresses : 254 Leased addresses : 100 Pending event : none 1 subnet is currently in the pool : Current index IP address range Leased addresses 192.168.1.1 192.168.1.1 - 192.168.1.254 100 What does this output indicate?
easyWhy A: The show ip dhcp pool command displays pool details. This pool has 254 total addresses, with 100 currently leased. The current index shows the next address to be assigned (192.168.1.1, but this is the start of the range; the actual next assignment may be tracked differently).
Last reviewed: Jun 24, 2026
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