350-101考試指南 - 350-101認證

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Cisco 350-101 Exam Overview:

Certification Vendor: Cisco
Exam Name: Implementing and Operating Cisco Wireless Core Technologies
Exam Number: 350-101 WLCOR
Exam Price: $400 USD
Exam Duration: 120 minutes
Available Languages: English, Japanese
Real Exam Qty: 90-110
Certificate Validity Period: 3 years
Passing Score: Pass/Fail
Exam Format: Drag and Drop, Multiple Choice, Simulation, Multiple Response
Related Certifications: Cisco Certified Specialist - Wireless Core
Cisco Certified Network Professional (CCNP) Wireless
Cisco Certified Internetwork Expert (CCIE) Wireless
Sample Questions: Cisco 350-101 Sample Questions
Exam Way: Online or Pearson VUE test center
Pre Condition: No formal prerequisites. Candidates are recommended to have 3-5 years of experience implementing enterprise wireless networks.
Official Syllabus URL: https://www.cisco.com/site/us/en/learn/training-certifications/exams/wlcor.html

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Cisco 350-101 考試大綱：

主題 簡介
主題 1
  • Client Connectivity Configuration: Covers configuring authentication both on and off the controller, setting up client connectivity across different operating systems, roaming behavior, and wireless guest network configuration.
主題 2
  • RF Fundamentals: Covers the behavior of radio waves, how RF signals are measured and interpreted, the mathematics behind RF calculations, and the characteristics of Wi-Fi antennas.
主題 3
  • 802.11 Technology Fundamentals: Covers Wi-Fi governance bodies, regional channel and power regulations, and the core technical principles of 802.11 including modulation, channel width, MIMO, topologies, and frame types.
主題 4
  • Wireless Network Operation: Covers initial configuration of Cisco wireless infrastructure, AP discovery and join processes, AP modes, WLAN setup, and client management policies across platforms like Catalyst Center, ISE, and Spaces.

最新的 CCIE Wireless 350-101 免費考試真題 (Q12-Q17):

問題 #12
In an RF environment, what does high interference result in?

  • A. extended coverage patterns
  • B. inconsistent channel performance
  • C. scheduled contention access
  • D. unreliable frame aggregation

答案：B

解題說明：
High interference in a wireless RF environment disrupts the predictable behavior of 802.11 channels. Interference comes from co-channel devices, neighboring APs, non-Wi-Fi sources like microwave ovens, cordless phones, or other electronic equipment operating in the same frequency band. When interference is present, the channel experiences fluctuating noise levels, increased frame collisions, and packet loss, all of which lead to inconsistent channel performance.
This inconsistency manifests as variable throughput, increased retransmissions, and irregular latency, directly impacting both client experience and AP scheduling decisions. While frame aggregation may fail under interference, the primary and systemic effect is the variability in channel quality, not the failure of aggregation alone. Scheduled contention access (option C) is an intentional protocol mechanism of EDCA or TXOP scheduling, which operates independently of interference levels. Extended coverage patterns (option D) are the result of antenna design or AP placement, not RF interference.
Cisco's Wireless Design Guide emphasizes that RF interference results in erratic channel behavior, requiring careful channel planning, power adjustment, and spectrum analysis using tools such as Cisco DNA Spaces or Spectrum Expert to restore consistent performance.


問題 #13
Refer to the exhibit.
import requests
import json
API_ENDPOINT_URL = "https://your-network-platform.com/api/v1/wireless-
clients"
AUTH_TOKEN = "YOUR_SECRET_AUTH_TOKEN"
headers = {
"Content-Type": "application/json",
"Authorization": f"Bearer {AUTH_TOKEN}"
}
print("Requesting wireless client data from the API...")
try:
response = requests.get(API_ENDPOINT_URL, headers=headers, timeout=10)
response.raise_for_status()
client_data = response.json()
print("Successfully retrieved and parsed data.\n")
print("--- Wireless Client Details ---")
if isinstance(client_data, list) and client_data:
for client in client_data:
mac_address = client.get("macAddress", "N/A")
ip_address = client.get("ipAddress", "N/A")
ssid = client.get("ssid", "N/A")
print(f"Client MAC: {mac_address}, IP: {ip_address}, SSID: {ssid}")
else:
print("No client data found or the data format is unexpected.")
except requests.exceptions.RequestException as e:
print(f"An error occurred during the API request: {e}")
except json.JSONDecodeError:
print("Failed to parse the API response. It may not be valid JSON.")
A network engineer is investigating how json library is used within a Python script designed to access response content from a Cisco wireless network API endpoint. The engineer wants to better understand how the script uses these elements to process device information. Which approach does the script use to achieve its data extraction goal?

  • A. to_dict method
  • B. dumps function
  • C. loads function
  • D. split method

答案：C

解題說明：
The correct answer is loads function because the script's extraction goal depends on deserializing JSON response data into native Python objects that can be indexed and queried.
Cisco Catalyst Center APIs use REST methods and require payloads to and from the REST interface to be in JSON format, including wireless and client information workflows. In the exhibit, the call client_data = response.json() decodes the HTTP response body into Python data structures. That behavior is functionally aligned with json.loads(): JSON objects become Python dictionaries, JSON arrays become Python lists, and strings/numbers become Python-native equivalents. Python's JSON decoder documentation shows this JSON-to-Python conversion model explicitly, including object-to-dict and array-to-list mappings.
After decoding, the script validates that client_data is a list, iterates through each client record, and uses dictionary .get() to extract macAddress, ipAddress, and ssid. The Requests library documents that Response.json() decodes a JSON response body as a Python object and may return a dictionary or list, which is exactly what the script consumes. dumps performs the opposite operation, split only tokenizes strings, and to_dict is not used here.


問題 #14
A university is deploying Cisco Catalyst 9176 APs at several satellite campuses, each with its own subnet and DNS services. The APs will be shipped with only their MAC addresses preregistered on the WLC. The satellite campuses do not use DHCP option 43, but they have access to a central DNS server. IT staff want APs to discover and join the Catalyst 9800 WLC automatically without site visits. Which solution must the IT staff implement?

  • A. Set up a multicast group on each different AP subnet to enable automatic controller discovery.
  • B. Create DNS entry cisco-capwap-controller.localdomain that resolves to the WLC management IP address.
  • C. Configure a DNS record ap-discovery with the controller virtual IP address.
  • D. Assign static IP addresses to all 9176 APs and configure the controller to be the DNS server.

答案：B

解題說明：
For Cisco Catalyst 9176 APs deployed at remote sites without DHCP option 43, automatic WLC discovery can be accomplished using DNS-based CAPWAP controller discovery. By creating a DNS A record named cisco-capwap-controller.<domain> that resolves to the WLC management IP address, APs can query DNS and locate their centralized controller automatically, eliminating the need for site visits or manual configuration. This method is preferred for large-scale or satellite deployments where APs may exist on different subnets and traditional DHCP-based discovery is unavailable.


問題 #15
Which process enables seamless Layer 2 handoff in a wireless network during roaming?

  • A. optimized roaming
  • B. deferred probe response technique
  • C. increased beacon interval setting
  • D. fast BSS transition protocol

答案：D

解題說明：
The correct answer is fast BSS transition protocol, which is IEEE 802.11r Fast Transition. Cisco describes 802.11r BSS Fast Transition as the mechanism used to provide seamless roaming for wireless clients by reducing the time required to roam between access points. It achieves this by allowing keying material to be prepared or cached so that the client does not perform a full authentication exchange every time it moves to another AP within the same mobility domain.
This is specifically relevant to Layer 2 roaming because the client remains in the same Layer 2 network while reassociating to a different BSS. Fast Transition reduces roam latency, which is critical for voice, video, collaboration, barcode scanners, and other real-time applications. Cisco also classifies fast secure roaming as the method used to accelerate client roaming when Layer 2 security is configured on the WLAN. Increased beacon intervals do not provide handoff acceleration. Optimized roaming helps with sticky-client behavior but is not the secure handoff protocol. Deferred probe response is an RF/client steering behavior, not an 802.11 Layer 2 roaming key-transition method.


問題 #16
Which process allows continuous IP address retention in a wireless network during roaming?

  • A. Layer 3 roaming
  • B. static VLAN assignment policy
  • C. redundant RF profile mapping
  • D. deferred probe response technique

答案：A

解題說明：
Layer 3 roaming is the process that allows a wireless client to retain its original IP address when roaming across different Layer 3 client subnets or controller client VLAN contexts. Cisco describes intercontroller Layer 3 roaming as occurring when wireless LAN interfaces are on different IP subnets. During this roam, the controllers exchange mobility messages, but instead of simply moving the client database entry, the original controller marks the client as an Anchor, while the new controller marks the copied client entry as Foreign. Cisco explicitly states that the roam remains transparent to the wireless client and that the client maintains its original IP address.


問題 #17
......

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