{"id":21284,"date":"2026-09-24T11:51:22","date_gmt":"2026-09-24T11:51:22","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=21284"},"modified":"2026-09-24T11:51:22","modified_gmt":"2026-09-24T11:51:22","slug":"cisco-ccnp-collaboration-350-801-practice-test-questions-and-exam-dumps-part15-q281-300","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccnp-collaboration-350-801-practice-test-questions-and-exam-dumps-part15-q281-300\/","title":{"rendered":"Cisco CCNP Collaboration 350-801 Practice Test Questions and Exam Dumps Part15 Q281-300"},"content":{"rendered":"

View Full <\/b>Cisco CCNP Collaboration 350-801 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 281<\/b><\/h3>\n

Which CUCM feature determines which partitions are accessible to a device when it places a call?<\/b><\/p>\n

    \n
  1. Route List<\/span><\/li>\n
  2. Calling Search Space<\/span><\/li>\n
  3. Device Pool<\/span><\/li>\n
  4. Region<\/span><\/li>\n<\/ol>\n

    Correct Answer: 2<\/b><\/p>\n

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

    A Calling Search Space, or CSS, determines which partitions a device, line, or user can search during call processing. Each partition contains specific dial-plan destinations, and the CSS controls whether those destinations are accessible. This provides an important mechanism for controlling calling privileges. Route lists organize route groups, device pools provide shared endpoint configuration, and regions influence codec and bandwidth relationships. If a user can reach internal destinations but cannot access certain external numbers, administrators should verify the caller’s CSS and the destination partition. Proper CSS design provides predictable call routing and helps separate different classes of dialing privileges across an enterprise.<\/span><\/p>\n

    Question 282<\/b><\/h3>\n

    Which SIP response code indicates that the requested service is unavailable?<\/b><\/p>\n

      \n
    1. 404<\/span><\/li>\n
    2. 486<\/span><\/li>\n
    3. 200<\/span><\/li>\n
    4. 503<\/span><\/li>\n<\/ol>\n

      Correct Answer: 4<\/b><\/p>\n

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

      SIP response code 503 indicates that a service is currently unavailable and cannot process the request. This response may occur when a SIP server or service is temporarily unable to handle communication. A 404 response indicates that a resource was not found, 486 generally indicates that the destination is busy, and 200 indicates successful processing. When troubleshooting a 503 response, administrators should identify which device generated it and examine SIP trunk status, routing, DNS, service availability, resource conditions, and intermediary devices. Reviewing the complete SIP transaction is important because the response may originate from a server, gateway, or other SIP component.<\/span><\/p>\n

      Question 283<\/b><\/h3>\n

      Which CUCM object can modify a dialed number before CUCM continues call processing?<\/b><\/p>\n

        \n
      1. Translation Pattern<\/span><\/li>\n
      2. Route Group<\/span><\/li>\n
      3. Device Pool<\/span><\/li>\n
      4. Media Resource Group<\/span><\/li>\n<\/ol>\n

        Correct Answer: 1<\/b><\/p>\n

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

        A Translation Pattern allows CUCM to manipulate digits before continuing call processing. It can add, remove, or transform digits according to the requirements of the enterprise dial plan or an external network. Translation patterns are useful when users dial numbers in one format while gateways or service providers require another. Route groups organize gateways, device pools provide common endpoint settings, and media resource groups organize media resources. When an outbound call presents an incorrect number or reaches an unexpected destination, administrators should inspect translation patterns along with route patterns, partitions, Calling Search Spaces, and other digit-manipulation settings.<\/span><\/p>\n

        Question 284<\/b><\/h3>\n

        Which protocol is commonly used to secure SIP signaling between collaboration systems?<\/b><\/p>\n

          \n
        1. RTP<\/span><\/li>\n
        2. SRTP<\/span><\/li>\n
        3. DHCP<\/span><\/li>\n
        4. TLS<\/span><\/li>\n<\/ol>\n

          Correct Answer: 4<\/b><\/p>\n

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

          Transport Layer Security, or TLS, is commonly used to protect SIP signaling between supported collaboration systems. TLS encrypts signaling traffic and can provide authentication using digital certificates and trusted certificate authorities. RTP carries real-time media, SRTP protects RTP-based media, and DHCP supplies network configuration information. Secure SIP deployments require compatible security profiles, valid certificates, correct hostnames, and appropriate trust relationships. When a secure SIP connection fails, administrators should inspect certificate validity, expiration, trust chains, hostname matching, TLS configuration, and network connectivity. Distinguishing TLS from SRTP is important because signaling and media require separate security mechanisms.<\/span><\/p>\n

          Question 285<\/b><\/h3>\n

          Which Cisco platform provides enterprise voicemail services?<\/b><\/p>\n

            \n
          1. Cisco Unity Connection<\/span><\/li>\n
          2. Cisco CUBE<\/span><\/li>\n
          3. Cisco Expressway-E<\/span><\/li>\n
          4. Cisco IM and Presence<\/span><\/li>\n<\/ol>\n

            Correct Answer: 1<\/b><\/p>\n

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

            Cisco Unity Connection provides enterprise voicemail services in supported Cisco collaboration environments. It manages user mailboxes, greetings, call handlers, message storage, notifications, and voicemail access. CUCM can route unanswered or busy calls to Unity Connection so callers can leave messages. CUBE provides SIP border functionality, Expressway-E provides edge connectivity, and IM and Presence supports instant messaging and presence. When voicemail is not functioning, administrators should inspect CUCM voicemail routing, voicemail ports, Unity Connection integration, mailbox configuration, and network connectivity. Proper integration ensures that users can reliably leave, retrieve, and manage voicemail messages throughout the collaboration environment.<\/span><\/p>\n

            Question 286<\/b><\/h3>\n

            Which CUCM configuration provides common settings to multiple endpoints?<\/b><\/p>\n

              \n
            1. Route Group<\/span><\/li>\n
            2. Device Pool<\/span><\/li>\n
            3. Partition<\/span><\/li>\n
            4. Translation Pattern<\/span><\/li>\n<\/ol>\n

              Correct Answer: 2<\/b><\/p>\n

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

              A Device Pool provides common configuration settings to a collection of Cisco endpoints. Depending on the deployment, it can reference a CUCM Group, region, date\/time group, SRST reference, and other shared settings. Device pools simplify administration by allowing multiple devices to inherit consistent configuration from one object. Route groups organize gateways, partitions organize dial-plan destinations, and translation patterns manipulate digits. When troubleshooting endpoint behavior, administrators should examine the assigned device pool because important registration, regional, and redundancy settings may be inherited from it. Proper device-pool planning improves consistency and reduces repetitive configuration across large collaboration deployments.<\/span><\/p>\n

              Question 287<\/b><\/h3>\n

              Which technology can provide backup call processing when IP phones lose connectivity to centralized CUCM?<\/b><\/p>\n

                \n
              1. LDAP<\/span><\/li>\n
              2. CDP<\/span><\/li>\n
              3. SRST<\/span><\/li>\n
              4. NTP<\/span><\/li>\n<\/ol>\n

                Correct Answer: 3<\/b><\/p>\n

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

                Survivable Remote Site Telephony, or SRST, provides backup call-processing functionality for supported Cisco IP phones when connectivity to centralized CUCM servers is lost. SRST functionality is commonly provided by a Cisco router at the remote site. Under normal conditions, phones register with CUCM, while SRST provides fallback services during WAN or centralized-service failures. LDAP provides directory services, CDP provides neighbor discovery, and NTP synchronizes clocks. Administrators should configure an appropriate SRST reference and verify the router’s SRST settings. Testing failover is important to confirm that phones transition successfully and that essential calling functions remain available during an outage.<\/span><\/p>\n

                Question 288<\/b><\/h3>\n

                Which media resource converts media from one codec to another?<\/b><\/p>\n

                  \n
                1. Conference Bridge<\/span><\/li>\n
                2. Annunciator<\/span><\/li>\n
                3. Music on Hold<\/span><\/li>\n
                4. Transcoder<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 4<\/b><\/p>\n

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

                  A transcoder converts media between different codecs when two endpoints do not have a mutually supported codec. This allows communication between devices or network segments with different codec requirements. Conference bridges provide multiparty conferencing, annunciators provide system-generated audio prompts, and Music on Hold supplies audio during hold conditions. If call signaling succeeds but media negotiation fails because of codec incompatibility, administrators should review endpoint capabilities, region settings, media resource availability, and MRGL assignments. A properly configured transcoder provides media interoperability and can be particularly useful when calls cross networks or service providers that require different codecs.<\/span><\/p>\n

                  Question 289<\/b><\/h3>\n

                  Which SIP method is used to initiate a new call session?<\/b><\/p>\n

                    \n
                  1. REGISTER<\/span><\/li>\n
                  2. BYE<\/span><\/li>\n
                  3. INVITE<\/span><\/li>\n
                  4. OPTIONS<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 3<\/b><\/p>\n

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

                    The SIP INVITE method is used to initiate a new communication session. An INVITE can include SDP information describing the media capabilities and proposed session parameters. The receiving endpoint or server responds with SIP status messages that determine whether the session can proceed. REGISTER is used for endpoint registration, BYE terminates an established dialog, and OPTIONS can query capabilities or availability. When troubleshooting call setup, administrators should inspect the INVITE and subsequent SIP responses to determine whether the request reached the correct destination and whether media negotiation succeeded. Understanding INVITE processing is fundamental to analyzing SIP call-establishment problems.<\/span><\/p>\n

                    Question 290<\/b><\/h3>\n

                    Which CUCM component provides an ordered collection of route groups for call routing?<\/b><\/p>\n

                      \n
                    1. Route List<\/span><\/li>\n
                    2. Partition<\/span><\/li>\n
                    3. Region<\/span><\/li>\n
                    4. Device Pool<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 1<\/b><\/p>\n

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

                      A Route List provides an ordered collection of route groups that CUCM can use for call routing. It allows administrators to define primary and alternate gateway paths and provides flexibility when multiple gateways are available. Route patterns can direct matching calls toward a route list, while route groups contain the gateways used for routing. Partitions organize dial-plan destinations, regions control codec and bandwidth relationships, and device pools provide common endpoint settings. When troubleshooting an outbound call, administrators should trace the routing hierarchy from the dialed digits through the route pattern, route list, route group, and gateway. This approach helps identify routing errors and redundancy issues.<\/span><\/p>\n

                      Question 291<\/b><\/h3>\n

                      Which protocol is responsible for carrying real-time voice and video media?<\/b><\/p>\n

                        \n
                      1. DNS<\/span><\/li>\n
                      2. RTP<\/span><\/li>\n
                      3. LDAP<\/span><\/li>\n
                      4. NTP<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 2<\/b><\/p>\n

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

                        Real-time Transport Protocol, or RTP, carries real-time audio and video media between collaboration endpoints and media resources. RTP includes sequence numbers and timestamps that support proper packet ordering and timing. DNS provides name resolution, LDAP provides directory services, and NTP synchronizes system clocks. Because RTP is sensitive to delay, jitter, and packet loss, QoS is important for collaboration networks. If a call establishes successfully but users experience one-way audio or poor media quality, administrators should investigate the RTP path, routing, firewall policies, NAT behavior, codec negotiation, and endpoint configuration. Media troubleshooting should be separated from SIP signaling analysis.<\/span><\/p>\n

                        Question 292<\/b><\/h3>\n

                        Which SIP method is used to register endpoint contact information with a SIP registrar?<\/b><\/p>\n

                          \n
                        1. REGISTER<\/span><\/li>\n
                        2. INVITE<\/span><\/li>\n
                        3. BYE<\/span><\/li>\n
                        4. CANCEL<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 1<\/b><\/p>\n

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

                          The SIP REGISTER method allows an endpoint to register its contact information with a SIP registrar. Registration enables the SIP infrastructure to associate a SIP address with the endpoint’s current contact location. INVITE establishes or modifies sessions, BYE terminates an established dialog, and CANCEL terminates a pending request. When a SIP endpoint cannot receive calls, administrators should verify registration status, authentication, registrar configuration, DNS, network reachability, and registration expiration. Understanding REGISTER transactions is important for troubleshooting endpoint availability because the registrar needs current contact information to route incoming SIP requests to the appropriate endpoint.<\/span><\/p>\n

                          Question 293<\/b><\/h3>\n

                          Which CUCM configuration controls codec and bandwidth relationships between groups of devices?<\/b><\/p>\n

                            \n
                          1. Region<\/span><\/li>\n
                          2. Route Group<\/span><\/li>\n
                          3. Partition<\/span><\/li>\n
                          4. Calling Search Space<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1<\/b><\/p>\n

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

                            A Region controls codec preferences and bandwidth relationships between groups of devices in CUCM. Administrators can configure region-to-region relationships to influence codec selection and limit the bandwidth used for audio and video calls. This is especially useful when collaboration traffic crosses WAN links with limited capacity. Route groups organize gateways, partitions organize dial-plan destinations, and Calling Search Spaces control which partitions can be searched. When calls use an unexpected codec or consume excessive WAN bandwidth, administrators should inspect endpoint region assignments and the configured region relationships. Proper region planning helps balance media quality with available network resources.<\/span><\/p>\n

                            Question 294<\/b><\/h3>\n

                            Which Cisco component is normally positioned at the network edge in an MRA deployment?<\/b><\/p>\n

                              \n
                            1. Expressway-C<\/span><\/li>\n
                            2. Expressway-E<\/span><\/li>\n
                            3. CUCM<\/span><\/li>\n
                            4. Unity Connection<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 2<\/b><\/p>\n

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

                              Expressway-E is normally positioned at the network edge in a Mobile and Remote Access deployment. It communicates with Expressway-C through a secure traversal relationship and provides controlled external connectivity for supported collaboration clients. Expressway-C is generally located inside the enterprise network and connects toward internal collaboration services such as CUCM. CUCM provides centralized call processing, while Unity Connection provides voicemail. Troubleshooting MRA requires attention to DNS, certificates, traversal zones, search rules, firewall policies, authentication, and CUCM integration. Proper Expressway-E placement helps protect internal collaboration resources while allowing authorized remote clients to access supported services.<\/span><\/p>\n

                              Question 295<\/b><\/h3>\n

                              Which CUCM object groups dial-plan destinations into logical collections?<\/b><\/p>\n

                                \n
                              1. Partition<\/span><\/li>\n
                              2. Route Group<\/span><\/li>\n
                              3. Device Pool<\/span><\/li>\n
                              4. Region<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 1<\/b><\/p>\n

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

                                A Partition groups CUCM dial-plan destinations into logical collections. Directory numbers, route patterns, translation patterns, and other objects can be assigned to partitions. Calling Search Spaces determine which partitions a device, line, or user is permitted to search. Route groups organize gateways, device pools provide common endpoint settings, and regions control codec and bandwidth relationships. If a caller cannot reach a destination that exists in CUCM, administrators should verify the destination’s partition and the caller’s CSS. Proper partition design provides a foundation for controlling dialing privileges and separating different destination categories within an enterprise collaboration environment.<\/span><\/p>\n

                                Question 296<\/b><\/h3>\n

                                Which SIP response code indicates successful processing of a request?<\/b><\/p>\n

                                  \n
                                1. 486<\/span><\/li>\n
                                2. 404<\/span><\/li>\n
                                3. 200<\/span><\/li>\n
                                4. 503<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 3<\/b><\/p>\n

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

                                  SIP response code 200 indicates successful processing of a request. A common example is a 200 OK response after an INVITE is accepted and the session can proceed. A 486 response generally indicates a busy destination, 404 indicates that a requested resource was not found, and 503 indicates service unavailability. Administrators should analyze the entire SIP transaction rather than relying on a single response because multiple signaling messages contribute to call establishment. Understanding common SIP response codes helps identify whether a call was accepted, rejected, redirected, or affected by a service condition. SIP traces provide valuable information during detailed troubleshooting.<\/span><\/p>\n

                                  Question 297<\/b><\/h3>\n

                                  Which CUCM object determines the gateways used by a particular routing path?<\/b><\/p>\n

                                    \n
                                  1. Device Pool<\/span><\/li>\n
                                  2. Route Group<\/span><\/li>\n
                                  3. Partition<\/span><\/li>\n
                                  4. Region<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 2<\/b><\/p>\n

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

                                    A Route Group contains gateways that CUCM can use for a particular routing path. Multiple gateways can be grouped together to provide organized routing and alternate paths. Route groups are commonly referenced by route lists, which can contain multiple groups and establish an ordered routing strategy. Device pools provide common endpoint settings, partitions organize dial-plan destinations, and regions influence codec and bandwidth relationships. When outbound calls use an unexpected gateway or fail to route, administrators should inspect the route pattern, route list, route group, gateway status, and routing preferences. A structured route-group design simplifies gateway administration and improves routing flexibility.<\/span><\/p>\n

                                    Question 298<\/b><\/h3>\n

                                    Which technology secures RTP media using encryption and integrity protection?<\/b><\/p>\n

                                      \n
                                    1. SRTP<\/span><\/li>\n
                                    2. TLS<\/span><\/li>\n
                                    3. SIP<\/span><\/li>\n
                                    4. LDAP<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 1<\/b><\/p>\n

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

                                      Secure Real-time Transport Protocol, or SRTP, provides encryption and integrity protection for RTP-based voice and video media. It is designed specifically for real-time communications and helps protect media from unauthorized interception or modification. TLS is generally used to secure signaling connections, SIP provides session signaling, and LDAP provides directory services. Secure collaboration deployments can use TLS and SRTP together because they protect different portions of a communication session. When secure media fails, administrators should verify endpoint capabilities, security profiles, negotiated media parameters, certificate requirements where applicable, and the network path between endpoints. Correct SRTP configuration helps protect sensitive collaboration media.<\/span><\/p>\n

                                      Question 299<\/b><\/h3>\n

                                      Which CUCM configuration determines the CUCM servers an endpoint can use for registration?<\/b><\/p>\n

                                        \n
                                      1. Route List<\/span><\/li>\n
                                      2. Partition<\/span><\/li>\n
                                      3. CUCM Group<\/span><\/li>\n
                                      4. Translation Pattern<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 3<\/b><\/p>\n

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

                                        A CUCM Group defines the ordered list of CUCM servers that an endpoint can use for registration and call processing. Device pools reference CUCM Groups so that groups of endpoints can share registration and redundancy settings. If the preferred CUCM server becomes unavailable, the endpoint can use another server according to the configured group and endpoint behavior. Route lists manage gateway routing, partitions organize dial-plan destinations, and translation patterns manipulate digits. When troubleshooting registration failures or failover behavior, administrators should inspect the device pool, CUCM Group order, server availability, network connectivity, TFTP configuration, and endpoint registration status.<\/span><\/p>\n

                                        Question 300<\/b><\/h3>\n

                                        Which protocol is commonly used to provide centralized directory access for Cisco collaboration systems?<\/b><\/p>\n

                                          \n
                                        1. RTP<\/span><\/li>\n
                                        2. LDAP<\/span><\/li>\n
                                        3. NTP<\/span><\/li>\n
                                        4. SRTP<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 2<\/b><\/p>\n

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

                                          Lightweight Directory Access Protocol, or LDAP, is commonly used to integrate Cisco collaboration systems with centralized enterprise directory services. LDAP can provide synchronized user information and, depending on the deployment, support authentication against an external directory. RTP carries real-time media, NTP synchronizes system clocks, and SRTP protects real-time media. When LDAP integration fails, administrators should verify directory-server reachability, credentials, synchronization status, filters, mappings, DNS resolution, and firewall policies. Centralized directory integration simplifies user administration and can provide consistent identity information across collaboration platforms. Proper LDAP configuration is therefore important for authentication and directory-related collaboration features.<\/span><\/p>\n

                                           <\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Cisco CCNP Collaboration 350-801 Exam Dumps and Practice Test Dumps.   Question 281 Which CUCM feature determines which partitions are accessible to a device when it places a call? Route List Calling Search Space Device Pool Region Correct Answer: 2 Explanation A Calling Search Space, or CSS, determines which partitions a device, line, […]<\/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\/21284"}],"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=21284"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/21284\/revisions"}],"predecessor-version":[{"id":21285,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/21284\/revisions\/21285"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=21284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=21284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=21284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}