{"id":22651,"date":"2026-09-26T06:49:08","date_gmt":"2026-09-26T06:49:08","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=22651"},"modified":"2026-09-26T06:49:08","modified_gmt":"2026-09-26T06:49:08","slug":"cisco-ccnp-300-425-practice-test-questions-and-exam-dumps-part9-q161-180","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccnp-300-425-practice-test-questions-and-exam-dumps-part9-q161-180\/","title":{"rendered":"Cisco CCNP 300-425 Practice Test Questions and Exam Dumps Part9 Q161-180"},"content":{"rendered":"

View Full <\/b>Cisco CCNP 300-425 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/p>\n


\n<\/b>Question 161. What does OFDMA divide a wireless channel into<\/b><\/p>\n

    \n
  1. <\/b> Mobility groups<\/span><\/li>\n
  2. <\/b> Resource units<\/span><\/li>\n
  3. <\/b> Policy tags<\/span><\/li>\n
  4. <\/b> RF domains<\/span><\/li>\n<\/ol>\n

    Correct Answer: 2. Resource units<\/b><\/p>\n

    Explanation:<\/b><\/p>\n

    OFDMA divides available channel bandwidth into smaller frequency allocations called resource units. These resource units can be assigned to different wireless clients so several devices can transmit or receive during the same scheduled period. This improves spectrum efficiency compared with requiring one client to occupy the complete channel for each transmission opportunity. OFDMA is an important WiFi 6 capability and is particularly valuable in environments containing many clients with relatively small amounts of data to exchange. Cisco Catalyst access points support OFDMA for both uplink and downlink multiuser communication.<\/span><\/p>\n

    Question 162. Where does OFDMA provide a major design benefit<\/b><\/p>\n

      \n
    1. <\/b> Empty networks only<\/span><\/li>\n
    2. <\/b> Wired networks<\/span><\/li>\n
    3. <\/b> Single client bridges<\/span><\/li>\n
    4. <\/b> Dense wireless environments<\/span><\/li>\n<\/ol>\n

      Correct Answer: 4. Dense wireless environments<\/b><\/p>\n

      Explanation:<\/b><\/p>\n

      OFDMA is designed to improve efficiency in dense wireless environments where many devices compete for airtime. Instead of requiring every client to wait for access to the entire wireless channel, the access point can allocate smaller resource units to several compatible clients. This reduces contention overhead and can improve latency and overall network efficiency. Cisco identifies improved performance in dense deployments as one of the major benefits of WiFi 6 OFDMA. The technology supports simultaneous multiuser operation in both uplink and downlink directions, making it useful for enterprise networks with large numbers of active wireless devices.<\/span><\/p>\n

      Question 163. What does MU MIMO use to serve multiple clients simultaneously<\/b><\/p>\n

        \n
      1. <\/b> Spatial streams<\/span><\/li>\n
      2. <\/b> DHCP pools<\/span><\/li>\n
      3. <\/b> Mobility anchors<\/span><\/li>\n
      4. <\/b> DNS zones<\/span><\/li>\n<\/ol>\n

        Correct Answer: 1. Spatial streams<\/b><\/p>\n

        Explanation:<\/b><\/p>\n

        MU MIMO uses multiple spatial streams to communicate with several compatible wireless clients simultaneously. Instead of using all available spatial streams for one client, an access point can direct independent data streams toward different stations. This improves wireless medium efficiency and can increase aggregate throughput when client placement and radio conditions support spatial separation. Cisco describes MU MIMO as one of the important multiuser technologies used with WiFi 6. OFDMA divides frequency resources among clients, while MU MIMO uses spatial separation. Both technologies help improve performance when many devices are active within the same wireless cell.<\/span><\/p>\n

        Question 164. What is the main purpose of Target Wake Time<\/b><\/p>\n

          \n
        1. <\/b> Increase antenna gain<\/span><\/li>\n
        2. <\/b> Change VLAN IDs<\/span><\/li>\n
        3. <\/b> Improve client power savings<\/span><\/li>\n
        4. <\/b> Detect radar<\/span><\/li>\n<\/ol>\n

          Correct Answer: 3. Improve client power savings<\/b><\/p>\n

          Explanation:<\/b><\/p>\n

          Target Wake Time is a WiFi power saving mechanism that allows an access point and compatible client to agree on scheduled times when the client should wake and exchange data. Between those scheduled periods, the client can remain in a power saving state for longer periods. This can extend battery life for devices such as sensors, handheld equipment, and other battery powered clients. Cisco also notes that TWT can reduce wireless network congestion because devices can be scheduled to communicate at different times rather than continually competing for the medium.<\/span><\/p>\n

          Question 165. What does BSS Coloring help WiFi 6 devices identify<\/b><\/p>\n

            \n
          1. <\/b> DHCP servers<\/span><\/li>\n
          2. <\/b> Wired VLANs<\/span><\/li>\n
          3. <\/b> Controller licenses<\/span><\/li>\n
          4. <\/b> Different wireless BSS traffic<\/span><\/li>\n<\/ol>\n

            Correct Answer: 4. Different wireless BSS traffic<\/b><\/p>\n

            Explanation:<\/b><\/p>\n

            BSS Coloring allows WiFi 6 devices to distinguish frames belonging to their own basic service set from frames belonging to an overlapping neighboring basic service set operating on the same channel. A color value is carried in the physical layer header of compatible transmissions. Devices can examine this value and determine whether detected traffic comes from their own BSS or another nearby BSS. This capability supports improved spatial reuse because wireless devices can make better decisions about when neighboring transmissions actually require them to defer access to the channel.<\/span><\/p>\n

            Question 166. What is the normal BSS color value range<\/b><\/p>\n

              \n
            1. <\/b> 1 through 63<\/span><\/li>\n
            2. <\/b> 1 through 8<\/span><\/li>\n
            3. <\/b> 1 through 16<\/span><\/li>\n
            4. <\/b> 1 through 255<\/span><\/li>\n<\/ol>\n

              Correct Answer: 1. 1 through 63<\/b><\/p>\n

              Explanation:<\/b><\/p>\n

              WiFi 6 BSS Coloring uses color values from 1 through 63. Each access point radio can include its selected BSS color in compatible high efficiency physical layer transmissions. Nearby devices use the value to determine whether received traffic belongs to their own BSS or an overlapping BSS. Local uniqueness is important because nearby access points using the same color reduce the usefulness of the mechanism. Cisco Catalyst wireless infrastructure can manage BSS color assignments automatically or allow configuration according to supported controller and access point capabilities.<\/span><\/p>\n

              Question 167. What does OBSS PD primarily improve<\/b><\/p>\n

                \n
              1. <\/b> DHCP redundancy<\/span><\/li>\n
              2. <\/b> Controller licensing<\/span><\/li>\n
              3. <\/b> Spatial reuse<\/span><\/li>\n
              4. <\/b> Wired routing<\/span><\/li>\n<\/ol>\n

                Correct Answer: 3. Spatial reuse<\/b><\/p>\n

                Explanation:<\/b><\/p>\n

                Overlapping BSS Packet Detection works with BSS Coloring to improve spatial reuse in WiFi 6 networks. A device can identify traffic from another BSS by checking the BSS color and apply a more aggressive packet detection threshold to appropriate inter BSS traffic. If the neighboring signal is weak enough, the device may transmit instead of unnecessarily waiting for the other transmission to finish. This can improve wireless efficiency in dense environments where neighboring cells share channels. The mechanism must still balance additional transmission opportunities with the need to avoid harmful interference.<\/span><\/p>\n

                Question 168. What does PSC mean in a 6 GHz design<\/b><\/p>\n

                  \n
                1. <\/b> Power Saving Channel<\/span><\/li>\n
                2. <\/b> Preferred Scanning Channel<\/span><\/li>\n
                3. <\/b> Primary Security Channel<\/span><\/li>\n
                4. <\/b> Protected Service Controller<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 2. Preferred Scanning Channel<\/b><\/p>\n

                  Explanation:<\/b><\/p>\n

                  Preferred Scanning Channels help simplify client discovery in the large 6 GHz spectrum. Instead of requiring a client to actively search every possible 6 GHz channel, the wireless design can make use of a defined group of preferred channels for more efficient discovery. Cisco Catalyst 9800 RF profiles support PSC bias for Dynamic Channel Assignment so the controller can favor these channels where appropriate. This can improve the ability of compatible 6 GHz clients to discover available wireless networks without performing inefficient scans across the entire frequency band.<\/span><\/p>\n

                  Question 169. Which clients can Cisco 6 GHz client steering redirect toward 6 GHz<\/b><\/p>\n

                    \n
                  1. <\/b> 6 GHz capable clients<\/span><\/li>\n
                  2. <\/b> Ethernet clients<\/span><\/li>\n
                  3. <\/b> 2.4 GHz only clients<\/span><\/li>\n
                  4. <\/b> Legacy WEP clients<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 1. 6 GHz capable clients<\/b><\/p>\n

                    Explanation:<\/b><\/p>\n

                    Cisco 6 GHz client steering applies to clients that support the 6 GHz frequency band. When the controller receives client capability information showing that a device can operate in 6 GHz, the infrastructure can encourage that device to move from 2.4 GHz or 5 GHz toward the 6 GHz radio. This can help make better use of the additional spectrum and reduce load on older frequency bands. Steering cannot make an incompatible device use 6 GHz, so client capability analysis remains important when planning a migration to WiFi 6E or later technologies.<\/span><\/p>\n

                    Question 170. What is the main purpose of AFC in 6 GHz standard power operation<\/b><\/p>\n

                      \n
                    1. <\/b> Assign user VLANs<\/span><\/li>\n
                    2. <\/b> Authenticate clients<\/span><\/li>\n
                    3. <\/b> Configure DHCP<\/span><\/li>\n
                    4. <\/b> Protect incumbent spectrum users<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 4. Protect incumbent spectrum users<\/b><\/p>\n

                      Explanation:<\/b><\/p>\n

                      Automated Frequency Coordination allows 6 GHz standard power wireless systems to operate while protecting incumbent licensed services that already use portions of the spectrum. Before a standard power access point operates, the AFC system evaluates its location and regulatory information. It returns available frequencies and permitted power levels for that specific location. The controller can then assign an approved channel and transmit power to the access point. This coordination allows higher power wireless operation while reducing the risk of harmful interference with protected incumbent systems.<\/span><\/p>\n

                      Question 171. What must a standard power AP obtain before 6 GHz operation<\/b><\/p>\n

                        \n
                      1. <\/b> A guest anchor<\/span><\/li>\n
                      2. <\/b> Approved frequencies and power levels<\/span><\/li>\n
                      3. <\/b> A mobility group name<\/span><\/li>\n
                      4. <\/b> A new SSID<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 2. Approved frequencies and power levels<\/b><\/p>\n

                        Explanation:<\/b><\/p>\n

                        A 6 GHz access point operating in standard power mode must obtain approved frequency and transmit power information from the AFC system before it can operate using standard power. The access point provides location information through the controller and related AFC infrastructure. The AFC system calculates which frequencies can be used and the maximum permitted power for the location. The controller then applies the returned information when assigning the radio configuration. This process prevents standard power access points from independently selecting frequencies that could interfere with protected incumbent radio systems.<\/span><\/p>\n

                        Question 172. Which 6 GHz mode is required for outdoor access points under current United States rules<\/b><\/p>\n

                          \n
                        1. <\/b> Low Power Indoor<\/span><\/li>\n
                        2. <\/b> Very Low Power only<\/span><\/li>\n
                        3. <\/b> Standard Power<\/span><\/li>\n
                        4. <\/b> Legacy Power<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 3. Standard Power<\/b><\/p>\n

                          Explanation:<\/b><\/p>\n

                          Cisco documents that outdoor access points operating in the 6 GHz band under United States rules must use Standard Power operation rather than Low Power Indoor mode. Standard Power uses Automated Frequency Coordination because outdoor higher power transmissions have a greater possibility of affecting incumbent users of the spectrum. The AFC service determines which channels and power levels are permitted at the specific access point location. Indoor access points can support other permitted power modes depending on hardware capabilities and regulatory requirements, but Low Power Indoor operation is not an outdoor deployment mode.<\/span><\/p>\n

                          Question 173. Where is Low Power Indoor 6 GHz operation intended to be used<\/b><\/p>\n

                            \n
                          1. <\/b> Indoor environments<\/span><\/li>\n
                          2. <\/b> Outdoor bridges only<\/span><\/li>\n
                          3. <\/b> Satellite links<\/span><\/li>\n
                          4. <\/b> Cellular towers<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1. Indoor environments<\/b><\/p>\n

                            Explanation:<\/b><\/p>\n

                            Low Power Indoor operation is intended for indoor 6 GHz wireless deployments. The reduced power and indoor restriction help limit the potential for interference with incumbent services using the same broader spectrum. Cisco wireless documentation distinguishes Low Power Indoor operation from Standard Power operation, which can use AFC and supports different deployment scenarios. Wireless designers must understand the regulatory domain because permitted power classes and available frequencies vary by country. The selected access point model must also support the intended 6 GHz operating mode before it is included in the physical design.<\/span><\/p>\n

                            Question 174. What information is essential for an AFC frequency request<\/b><\/p>\n

                              \n
                            1. <\/b> Client password<\/span><\/li>\n
                            2. <\/b> Controller hostname<\/span><\/li>\n
                            3. <\/b> DHCP lease time<\/span><\/li>\n
                            4. <\/b> Access point geolocation<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 4. Access point geolocation<\/b><\/p>\n

                              Explanation:<\/b><\/p>\n

                              AFC decisions depend on the precise geographic location of the standard power access point. The system uses coordinates and height information to determine which protected incumbent services could be affected at that location. It then calculates the channels and maximum power levels the access point may use. Cisco access points can obtain location information through supported GNSS hardware or location propagation mechanisms. Accurate geolocation is therefore not simply a location services feature in an AFC design. It is a regulatory requirement that directly affects whether and how the 6 GHz radio can operate in standard power mode.<\/span><\/p>\n

                              Question 175. What AFC role does the Catalyst 9800 perform<\/b><\/p>\n

                                \n
                              1. <\/b> Incumbent radar<\/span><\/li>\n
                              2. <\/b> GNSS satellite<\/span><\/li>\n
                              3. <\/b> AFC proxy<\/span><\/li>\n
                              4. <\/b> Client station<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 3. AFC proxy<\/b><\/p>\n

                                Explanation:<\/b><\/p>\n

                                In the Cisco Catalyst AFC architecture, the Catalyst 9800 wireless controller operates as an AFC proxy. It participates in the communication process between supported access points and the external AFC system. The access point supplies the required location information, while the AFC system determines permitted frequencies and maximum power based on regulatory information. The response returns through the architecture so the controller can assign appropriate channel and transmit power settings. This arrangement allows centrally managed Catalyst wireless deployments to support compliant Standard Power operation in the 6 GHz frequency band.<\/span><\/p>\n

                                Question 176. What is the maximum standard power AP EIRP listed by Cisco for United States 6 GHz AFC operation<\/b><\/p>\n

                                  \n
                                1. <\/b> 24 dBm<\/span><\/li>\n
                                2. <\/b> 36 dBm<\/span><\/li>\n
                                3. <\/b> 10 dBm<\/span><\/li>\n
                                4. <\/b> 18 dBm<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 2. 36 dBm<\/b><\/p>\n

                                  Explanation:<\/b><\/p>\n

                                  Cisco documentation lists a maximum EIRP of 36 dBm for Standard Power access points under applicable United States 6 GHz AFC rules. The actual power permitted for an individual access point can be lower because the AFC system calculates allowable frequencies and power according to the AP location and protected incumbent services. Designers should therefore treat 36 dBm as the regulatory maximum rather than an automatic operating power for every deployment. Antenna properties, channel availability, location, hardware capability, and the AFC response all influence the actual radio configuration.<\/span><\/p>\n

                                  Question 177. What does Target Wake Time schedule<\/b><\/p>\n

                                    \n
                                  1. <\/b> Client wake periods<\/span><\/li>\n
                                  2. <\/b> Mobility group changes<\/span><\/li>\n
                                  3. <\/b> Controller reloads<\/span><\/li>\n
                                  4. <\/b> DFS radar scans<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 1. Client wake periods<\/b><\/p>\n

                                    Explanation:<\/b><\/p>\n

                                    Target Wake Time schedules periods when compatible wireless clients wake from power saving mode to exchange data with the access point. Clients can remain asleep for longer intervals instead of repeatedly waking to contend for the wireless medium. This is especially beneficial for battery operated devices that send or receive traffic periodically. Scheduling can also reduce contention by separating communication periods among different stations. Cisco describes TWT as both a power saving mechanism and a way to help manage activity on the wireless network more efficiently.<\/span><\/p>\n

                                    Question 178. Which directions can WiFi 6 OFDMA support<\/b><\/p>\n

                                      \n
                                    1. <\/b> Downlink only<\/span><\/li>\n
                                    2. <\/b> Uplink only<\/span><\/li>\n
                                    3. <\/b> Wired only<\/span><\/li>\n
                                    4. <\/b> Uplink and downlink<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 4. Uplink and downlink<\/b><\/p>\n

                                      Explanation:<\/b><\/p>\n

                                      WiFi 6 OFDMA supports multiuser operation in both uplink and downlink directions. In downlink operation, the access point can allocate resource units to multiple clients and send data during the same scheduled period. In uplink operation, several compatible clients can transmit using assigned resource units during a coordinated interval. Cisco Catalyst 9100 access points support this multiuser capability as part of 802.11ax operation. Supporting both directions improves spectrum efficiency and can reduce contention in dense networks containing many active devices.<\/span><\/p>\n

                                      Question 179. Which frequency bands were originally targeted by WiFi 6<\/b><\/p>\n

                                        \n
                                      1. <\/b> 5 GHz and 60 GHz only<\/span><\/li>\n
                                      2. <\/b> 2.4 GHz and 5 GHz<\/span><\/li>\n
                                      3. <\/b> 6 GHz only<\/span><\/li>\n
                                      4. <\/b> 2.4 GHz only<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 2. 2.4 GHz and 5 GHz<\/b><\/p>\n

                                        Explanation:<\/b><\/p>\n

                                        The original WiFi 6 standard brought 802.11ax capabilities to both the 2.4 GHz and 5 GHz frequency bands. This differs from 802.11ac, which was primarily a 5 GHz technology. WiFi 6 introduced efficiency improvements such as OFDMA, uplink and downlink multiuser capabilities, BSS Coloring, and Target Wake Time. WiFi 6E later extended WiFi 6 technology into the 6 GHz spectrum. Designers should distinguish WiFi generation features from frequency band availability because client and access point support can differ across 2.4 GHz, 5 GHz, and 6 GHz radios.<\/span><\/p>\n

                                        Question 180. How can BSS Coloring reduce client power consumption<\/b><\/p>\n

                                          \n
                                        1. <\/b> By increasing transmit power<\/span><\/li>\n
                                        2. <\/b> By disabling roaming<\/span><\/li>\n
                                        3. <\/b> By dropping unrelated BSS traffic earlier<\/span><\/li>\n
                                        4. <\/b> By increasing channel width<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 3. By dropping unrelated BSS traffic earlier<\/b><\/p>\n

                                          Explanation:<\/b><\/p>\n

                                          BSS Coloring allows a WiFi 6 device to identify whether a received transmission belongs to its own BSS by checking the color information in the physical layer header. When the traffic belongs to another BSS, the device can sometimes stop processing the frame earlier instead of fully demodulating it. Avoiding unnecessary processing can reduce power consumption. BSS Coloring also supports spatial reuse because devices can more intelligently distinguish overlapping wireless cells sharing a channel. These combined benefits make BSS Coloring an important efficiency feature in dense WiFi 6 deployments.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Cisco CCNP 300-425 Exam Dumps and Practice Test Dumps. Question 161. What does OFDMA divide a wireless channel into Mobility groups Resource units Policy tags RF domains Correct Answer: 2. Resource units Explanation: OFDMA divides available channel bandwidth into smaller frequency allocations called resource units. These resource units can be assigned to different […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22651"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=22651"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22651\/revisions"}],"predecessor-version":[{"id":22652,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22651\/revisions\/22652"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=22651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=22651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=22651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}