CCNA Switching and Network Access Practice Question
In a controller-based WLAN, what is the main job of the access point?
⚠ Common exam trap
Remember that access points handle RF communication, while controllers manage policies and configurations. Don't confuse these roles.
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 provide the radio connection between wireless clients and the network
The main job of the access point is to provide the actual radio connection between wireless clients and the network. In practical terms, the controller may centralize policy and management, but the AP is still the device that transmits and receives the wireless frames in the local area. This distinction matters because CCNA wireless questions often separate the controller’s management role from the AP’s RF and client-connectivity role.
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 provide the radio connection between wireless clients and the network
Why this is correct
The access point (AP) is responsible for operating the physical radio interface, including transmitting and receiving 802.11 wireless frames to and from client devices. It converts those wireless frames into 802.3 Ethernet frames for the wired network, but it does so under the control of a wireless LAN controller. Its core job is purely to provide reliable, over-the-air connectivity to associated clients, while the controller handles management and higher-level decisions.
- ✗
To replace the wireless LAN controller entirely
Why it's wrong here
The AP in a controller-based architecture is designed as a lightweight device that depends on the WLAN controller for configuration, security policies, roaming decisions, and control plane operations. Replacing the controller would require the AP to take over all of those centralized functions, which it is not physically or logically capable of doing. Thus, the AP's role is complementary, not a replacement, and a controller-based network loses its primary management and coordination point without the controller.
When this WOULD be correct
In a scenario where the question asks about the role of access points in a standalone WLAN setup, where no controller is present, this option would be correct as it implies that access points manage all functions independently.
- ✗
To act as the default gateway for every wired VLAN
Why it's wrong here
An access point is not a routed gateway; it does not perform packet forwarding between subnets or function as a VLAN's default gateway. In a controller-based WLAN, the AP typically forwards wireless traffic over a CAPWAP tunnel to the controller, which then communicates with the wired LAN and the appropriate gateway or router. The default gateway for every wired VLAN is a Layer 3 switch or router, not the AP, so this task lies completely outside the AP's responsibilities.
When this WOULD be correct
If the question asked about a standalone access point in a traditional WLAN setup, where it is configured to handle multiple VLANs and serve as the default gateway for clients on those VLANs, then this option would be correct. In such a scenario, the access point would need to manage IP addressing and routing for the connected clients.
- ✗
To perform OSPF route summarization for wireless users
Why it's wrong here
OSPF route summarization is a layer 3 routing function that requires an IP routing table and a full OSPF process, none of which exist on a lightweight access point in a controller-based WLAN. The AP operates at layer 2 and tunnels client traffic using CAPWAP back to the wireless LAN controller, which is the device that could interface with routed networks. Therefore, the AP has no role in OSPF or any route summarization, making this option incorrect.
When this WOULD be correct
In a different context, if the question asked about the functions of a wireless router that integrates routing protocols like OSPF for managing wireless traffic, this option could be correct, as such devices can perform route summarization.
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 provide the radio connection between wireless clients and the networkCorrect answer▾
Why this is correct
The access point (AP) is responsible for operating the physical radio interface, including transmitting and receiving 802.11 wireless frames to and from client devices. It converts those wireless frames into 802.3 Ethernet frames for the wired network, but it does so under the control of a wireless LAN controller. Its core job is purely to provide reliable, over-the-air connectivity to associated clients, while the controller handles management and higher-level decisions.
✗To replace the wireless LAN controller entirelyWrong answer — click to see why▾
Why this is wrong here
In a controller-based WLAN, the access point is a lightweight device that relies on the wireless LAN controller (WLC) for management, control, and data forwarding decisions. The AP cannot replace the controller because it lacks the necessary intelligence and processing power to perform controller functions such as RF management, client authentication, and mobility services.
★ When this WOULD be the correct answer
In a scenario where the question asks about the role of access points in a standalone WLAN setup, where no controller is present, this option would be correct as it implies that access points manage all functions independently.
Why candidates choose this
Students might confuse controller-based APs with autonomous APs, which can operate independently without a controller. However, in a controller-based architecture, APs are designed to work in conjunction with a controller, not replace it.
✗To act as the default gateway for every wired VLANWrong answer — click to see why▾
Why this is wrong here
The access point does not act as a default gateway for wired VLANs. Default gateway functionality is provided by routers or Layer 3 switches that route traffic between different subnets. The AP's role is limited to wireless access and forwarding client traffic to the wired network, typically through the controller or directly to the switch.
★ When this WOULD be the correct answer
If the question asked about a standalone access point in a traditional WLAN setup, where it is configured to handle multiple VLANs and serve as the default gateway for clients on those VLANs, then this option would be correct. In such a scenario, the access point would need to manage IP addressing and routing for the connected clients.
Why candidates choose this
Some students may think that because an AP connects wireless clients to the network, it must also provide routing or gateway services. However, in a typical WLAN deployment, the AP operates at Layer 2 and does not perform Layer 3 routing functions.
✗To perform OSPF route summarization for wireless usersWrong answer — click to see why▾
Why this is wrong here
OSPF route summarization is a routing protocol function performed by routers or Layer 3 switches, not by access points. APs are not involved in routing protocol operations; they focus on wireless connectivity and may forward traffic to the controller or wired network without participating in dynamic routing.
★ When this WOULD be the correct answer
In a different context, if the question asked about the functions of a wireless router that integrates routing protocols like OSPF for managing wireless traffic, this option could be correct, as such devices can perform route summarization.
Why candidates choose this
Students might associate OSPF with network devices in general and assume that any network device could perform route summarization. However, APs are not routers and do not run routing protocols like OSPF in a typical WLAN deployment.
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
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
Go deeper
Related to this question
Learn chapter
Configuring Switch Ports for Desktops, VoIP Phones, APs, IoT, and Virtualized Hosts
Key term
Cisco Discovery Protocol
A proprietary Layer 2 network protocol used by Cisco devices to discover information about directly connected neighbor devices.
Key term
WLAN
A wireless local area network (WLAN) links devices using radio waves instead of cables, typically based on IEEE 802.11 standards.
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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.