CCNA Network Infrastructure and Connectivity Practice Question
A host is configured with IP address 192.168.50.94/27. Which subnet contains that host?
⚠ Common exam trap
Always calculate the subnet range using the block size derived from the prefix length to avoid choosing incorrect boundaries.
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
✓
192.168.50.64/27
A /27 subnet has a block size of 32. In simple terms, the fourth-octet ranges are 0–31, 32–63, 64–95, 96–127, and so on. Because 94 falls inside the 64–95 range, the network address for the host’s subnet is 192.168.50.64/27. This kind of question tests whether you can move from prefix length to block size and then place the host inside the correct interval. The most common mistake is choosing a nearby boundary like 96 or 32 without calculating the actual block that contains the address.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
192.168.50.32/27
Why it's wrong here
This is wrong because that subnet ends at .63.
When this WOULD be correct
If the question asked which subnet contains the IP address 192.168.50.40, then option A (192.168.50.32/27) would be correct, as this subnet would encompass the host IP within its range.
- ✓
192.168.50.64/27
Why this is correct
A /27 prefix length defines a subnet mask of 255.255.255.224, creating a block of 32 addresses. The host address 192.168.50.94 falls within the range 192.168.50.64–192.168.50.95, where 192.168.50.64 is the network address and 192.168.50.95 is the broadcast address. This satisfies the constraint that the host’s IP must lie between the subnet’s network and broadcast addresses.
- ✗
192.168.50.96/27
Why it's wrong here
This is wrong because that block begins above the host address.
When this WOULD be correct
If the question asked which subnet contains the IP address 192.168.50.96, then option C would be correct, as that address would belong to the subnet 192.168.50.96/27, which covers addresses from 192.168.50.96 to 192.168.50.127.
- ✗
192.168.50.0/27
Why it's wrong here
This is wrong because that block covers only .0 through .31.
When this WOULD be correct
If the question asked which subnet contains the network address of a different host, such as one configured with an IP address in the range of 192.168.50.0 to 192.168.50.31, then option D would be correct as it would represent the subnet for that specific host.
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.
✓192.168.50.64/27Correct answer▾
Why this is correct
A /27 prefix length defines a subnet mask of 255.255.255.224, creating a block of 32 addresses. The host address 192.168.50.94 falls within the range 192.168.50.64–192.168.50.95, where 192.168.50.64 is the network address and 192.168.50.95 is the broadcast address. This satisfies the constraint that the host’s IP must lie between the subnet’s network and broadcast addresses.
✗192.168.50.32/27Wrong answer — click to see why▾
Why this is wrong here
The subnet 192.168.50.32/27 covers addresses 192.168.50.32 to 192.168.50.63. The host address 192.168.50.94 is outside this range, so it does not belong to this subnet.
★ When this WOULD be the correct answer
If the question asked which subnet contains the IP address 192.168.50.40, then option A (192.168.50.32/27) would be correct, as this subnet would encompass the host IP within its range.
Why candidates choose this
Students might mistakenly think that because 94 is close to 64, it could be in the .32 subnet, but they forget to calculate the broadcast address correctly.
✗192.168.50.96/27Wrong answer — click to see why▾
Why this is wrong here
The subnet 192.168.50.96/27 covers addresses 192.168.50.96 to 192.168.50.127. The host address 192.168.50.94 is below this range, so it does not belong to this subnet.
★ When this WOULD be the correct answer
If the question asked which subnet contains the IP address 192.168.50.96, then option C would be correct, as that address would belong to the subnet 192.168.50.96/27, which covers addresses from 192.168.50.96 to 192.168.50.127.
Why candidates choose this
Students may incorrectly think that because 94 is close to 96, it could be in the .96 subnet, but they overlook that the subnet starts at .96, not .95.
✗192.168.50.0/27Wrong answer — click to see why▾
Why this is wrong here
The subnet 192.168.50.0/27 covers addresses 192.168.50.0 to 192.168.50.31. The host address 192.168.50.94 is far above this range, so it does not belong to this subnet.
★ When this WOULD be the correct answer
If the question asked which subnet contains the network address of a different host, such as one configured with an IP address in the range of 192.168.50.0 to 192.168.50.31, then option D would be correct as it would represent the subnet for that specific host.
Why candidates choose this
Students might choose this option if they incorrectly calculate the subnet mask or assume the host is in the first subnet without proper calculation.
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?”
Visual reference
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Related to this question
Learn chapter
IPv4 Addressing and Address Classes
Key term
Subnet
A subnet is a logical subdivision of an IP network, created by partitioning a larger network address space using subnet masks.
Key term
IP address
An IP address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-301 practice question is part of Courseiva's free Cisco 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 200-301 exam.