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Question 112 of 1,052
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CCNA Practice Question: Which TWO statements correctly describe the…
This 200-301 practice question tests your understanding of 200-301 exam topics. 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.
Which TWO statements correctly describe the configuration and verification of NAT, PAT, and static NAT?
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
✓
To configure static NAT, use the command 'ip nat inside source static <inside-local> <inside-global>'.
NAT (Network Address Translation) translates private IP addresses to public ones. Static NAT uses a one-to-one mapping, while PAT (Port Address Translation) uses a single public IP with different ports. The 'ip nat inside source' command configures translations, and 'show ip nat translations' verifies them.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
To configure static NAT, use the command 'ip nat inside source static <inside-local> <inside-global>'.
Why this is correct
This command creates a one-to-one mapping between a private (inside local) and a public (inside global) IP address.
Related concept
CIDR notation defines the prefix length.
- ✓
PAT uses the command 'ip nat inside source list <acl> interface <interface> overload' to translate multiple inside addresses to the interface's IP using different port numbers.
- ✗
The command 'show ip nat statistics' displays the current active translations including inside and outside addresses.
Why it's wrong here
'show ip nat statistics' shows summary statistics like hits, misses, and translations count, but not the actual translation entries.
- ✓
When configuring dynamic NAT, you must define a NAT pool using the command 'ip nat pool <name> <start-ip> <end-ip> netmask <mask>' and then use an ACL to match inside traffic.
- ✗
To verify that static NAT is working, you should check the output of 'show ip interface brief' and look for the translated IP.
Why it's wrong here
'show ip interface brief' shows interface status and IP addresses, but not NAT translations.
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 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓To configure static NAT, use the command 'ip nat inside source static <inside-local> <inside-global>'.Correct answer▾
Why this is correct
This command creates a one-to-one mapping between a private (inside local) and a public (inside global) IP address.
✗The command 'show ip nat statistics' displays the current active translations including inside and outside addresses.Wrong answer — click to see why▾
Why this is wrong here
To see active translations, use 'show ip nat translations' instead.
✗To verify that static NAT is working, you should check the output of 'show ip interface brief' and look for the translated IP.Wrong answer — click to see why▾
Why this is wrong here
Use 'show ip nat translations' or 'debug ip nat' for verification.
Analysis generated from the official 200-301blueprint 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: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Trap categories for this question
Command / output trap
'show ip nat statistics' shows summary statistics like hits, misses, and translations count, but not the actual translation entries.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 200-301 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this 200-301 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: To configure static NAT, use the command 'ip nat inside source static <inside-local> <inside-global>'. — NAT (Network Address Translation) translates private IP addresses to public ones. Static NAT uses a one-to-one mapping, while PAT (Port Address Translation) uses a single public IP with different ports. The 'ip nat inside source' command configures translations, and 'show ip nat translations' verifies them.
What should I do if I get this 200-301 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 200-301 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
About these practice questions
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