CCNA Network Infrastructure and Connectivity Practice Question
This 200-301 practice question tests your understanding of network infrastructure and connectivity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Drag and drop the wireless LAN terms on the left to the correct descriptions on the right.
An Access Point (AP) is a device that connects wireless clients to a wired network, acting as a bridge between the wireless and wired domains.
B
Service Set Identifier (SSID)
Why wrong: This is incorrect because the SSID is the network name that identifies a wireless network, not a device that connects wireless to wired.
C
Basic Service Set (BSS)
Why wrong: This is incorrect because a BSS describes a single AP with its associated clients, not the device that connects wireless to wired.
D
Wireless LAN Controller (WLC)
Why wrong: This is incorrect because a WLC manages multiple APs centrally, but it does not directly connect wireless clients to the wired network; that is the AP's role.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Access Point (AP)
802.11ac (Wi-Fi 5) operates exclusively in the 5 GHz band and uses wide channels (80/160 MHz) for high throughput. 802.11ax (Wi-Fi 6) introduces OFDMA for efficiency and supports both 2.4 GHz and 5 GHz. WPA3 enhances security with Simultaneous Authentication of Equals (SAE), replacing WPA2's Pre-Shared Key (PSK) to resist brute-force attacks. The SSID is the human-readable network name broadcast by access points. Channel overlap is a critical issue in the 2.4 GHz band because only three channels (1, 6, 11) are non-overlapping. WLC management interfaces commonly use HTTPS, SSH, or console for secure configuration.
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.
✓
Access Point (AP)
Why this is correct
An Access Point (AP) is a device that connects wireless clients to a wired network, acting as a bridge between the wireless and wired domains.
This is incorrect because the SSID is the network name that identifies a wireless network, not a device that connects wireless to wired.
✗
Basic Service Set (BSS)
Why it's wrong here
This is incorrect because a BSS describes a single AP with its associated clients, not the device that connects wireless to wired.
✗
Wireless LAN Controller (WLC)
Why it's wrong here
This is incorrect because a WLC manages multiple APs centrally, but it does not directly connect wireless clients to the wired network; that is the AP's role.
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.
✓Access Point (AP)Correct answer▾
Why this is correct
An Access Point (AP) is a device that connects wireless clients to a wired network, acting as a bridge between the wireless and wired domains.
✗Service Set Identifier (SSID)Wrong answer — click to see why▾
Why this is wrong here
The SSID is a label, not a hardware device; it does not perform bridging functions.
Why candidates choose this
Candidates might confuse the SSID with the AP because both are associated with wireless network identification.
✗Basic Service Set (BSS)Wrong answer — click to see why▾
Why this is wrong here
BSS is a logical group, not a physical device; it does not perform the bridging function.
Why candidates choose this
Candidates might think BSS is the AP itself because the AP is a key component of a BSS.
✗Wireless LAN Controller (WLC)Wrong answer — click to see why▾
Why this is wrong here
The WLC handles management and control, not the actual bridging of traffic between wireless and wired domains.
Why candidates choose this
Candidates might think the WLC is responsible for connectivity because it controls APs, but the AP itself performs the bridging.
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.
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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
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.
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Access Point (AP) — 802.11ac (Wi-Fi 5) operates exclusively in the 5 GHz band and uses wide channels (80/160 MHz) for high throughput. 802.11ax (Wi-Fi 6) introduces OFDMA for efficiency and supports both 2.4 GHz and 5 GHz. WPA3 enhances security with Simultaneous Authentication of Equals (SAE), replacing WPA2's Pre-Shared Key (PSK) to resist brute-force attacks. The SSID is the human-readable network name broadcast by access points. Channel overlap is a critical issue in the 2.4 GHz band because only three channels (1, 6, 11) are non-overlapping. WLC management interfaces commonly use HTTPS, SSH, or console for secure configuration.
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.
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Question Discussion
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