Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
An AP broadcasts the correct SSID, but many clients on one floor experience poor performance while the same SSID works well on another floor. Which category of issue is most strongly suggested first?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
A radio-frequency or local wireless environment issue on that floor
This is correct because the problem is location-specific while the SSID itself works elsewhere.
B
Distractor review
The SSID name must be misspelled only on that floor
This is wrong because the same SSID is already functioning on other floors.
C
Distractor review
BGP autonomous system mismatch
This is wrong because interdomain routing is not the first clue in a floor-specific WLAN performance issue.
D
Distractor review
IPv6 loopback addressing on the clients
This is wrong because that does not fit the described wireless performance symptom.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A frequent exam trap is to assume that wireless performance problems stem from SSID misconfiguration or higher-layer network issues like routing protocol mismatches or IP addressing errors. For instance, options mentioning BGP autonomous system mismatches or IPv6 loopback addressing might seem plausible but do not explain location-specific wireless degradation. The trap is to overlook the physical and radio-frequency environment, which is the primary cause of poor wireless performance isolated to one floor. Candidates must avoid jumping to complex network-layer conclusions when the problem is clearly tied to RF conditions and AP placement.
Technical deep dive
How to think about this question
Wireless LANs rely heavily on radio-frequency (RF) signals to provide connectivity between clients and access points (APs). The SSID is a network identifier broadcast by APs to allow clients to associate with the WLAN. When an AP broadcasts the correct SSID but clients on a specific floor experience poor performance, the core issue often lies in the RF environment rather than the SSID configuration itself. Factors such as interference from other wireless devices, physical obstructions like walls or metal structures, and improper AP placement can severely degrade signal quality and throughput. In Cisco WLAN deployments, troubleshooting starts with verifying that the SSID is correctly broadcast and consistent across all APs. Since the SSID works well on other floors, the problem is unlikely to be a naming or configuration error. Instead, the focus shifts to RF conditions on the problematic floor. Tools like Cisco Prime Infrastructure or wireless spectrum analyzers help identify interference sources, channel overlap, and signal strength issues. Adjusting AP channels, repositioning APs, or adding additional APs can mitigate these RF problems and improve client performance. A common exam trap is to confuse wireless performance issues with higher-layer network problems such as routing protocol mismatches or IP addressing errors. For example, BGP autonomous system mismatches or IPv6 loopback addressing on clients do not cause localized wireless degradation. These issues affect routing or IP connectivity broadly and would not selectively impact one floor’s wireless performance. Understanding this distinction helps avoid misdiagnosis and focuses troubleshooting on the physical and RF layer first, which is critical for Cisco CCNA-level WLAN problem-solving.
KKey Concepts to Remember
- Wireless LAN performance issues localized to a specific floor usually indicate radio-frequency interference or environmental factors affecting signal quality.
- An access point broadcasting the correct SSID confirms that the WLAN configuration is consistent across floors and the SSID itself is not the root cause.
- Radio-frequency interference can originate from physical obstacles, electronic devices, or overlapping channels that degrade wireless signal strength and throughput.
- Cisco wireless troubleshooting prioritizes checking local RF conditions, channel utilization, and AP placement before considering higher-layer network protocols.
- SSID name mismatches are unlikely when the same SSID works well on other floors, eliminating naming errors as the primary cause.
- Routing protocols such as BGP do not impact wireless SSID performance and are irrelevant to floor-specific WLAN issues.
- IPv6 addressing issues on clients do not typically cause localized wireless performance degradation and are not a primary troubleshooting focus here.
- Effective WLAN troubleshooting requires isolating physical and RF environment factors before investigating network-layer or configuration errors.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
Wireless LAN performance issues localized to a specific floor usually indicate radio-frequency interference or environmental factors affecting signal quality.
What is the correct answer to this question?
The correct answer is: A radio-frequency or local wireless environment issue on that floor — The strongest first suspicion is a radio or wireless-environment issue affecting that floor rather than a simple SSID-definition problem. In practical terms, the SSID exists and works elsewhere, so the WLAN identity is not the main clue. Performance problems isolated to one location point more toward RF conditions, interference, channel behavior, or local AP placement and load conditions. This is a location-specific WLAN troubleshooting question, not a naming or authentication question.
What should I do if I get this 200-301 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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