Medium 350-801 practice questions

A collaboration engineer wants to onboard an existing on-premises Cisco Unified Communications Manager cluster to Cloud Connected UC (CCUC) so that administrators can view analytics and manage the cluster from Control Hub without migrating calling to Webex Calling. The CUCM cluster is running a supported version. Which action is required to establish this connection?

A large enterprise using Webex Control Hub wants to delegate day-to-day help-desk operations to a regional IT team. This team must be able to reset passwords, reassign devices, and edit calling settings for users located only within their assigned locations, but they must NOT be able to manage licensing, billing, or organization-wide security settings. What is the most appropriate way to grant this access in Control Hub?

An engineer configures a CUBE to accept inbound SIP calls from an ITSP. The current inbound dial peer matches on 'incoming called-number', but the ITSP recently changed the format of the called number for each customer trunk, breaking inbound matching. The engineer wants a deterministic, format-independent way to bind incoming INVITEs from this ITSP to a specific inbound dial peer based on the host portion of the SIP Request-URI. Which configuration achieves this?

You are deploying media resources on an IOS XE CUBE that must transcode between G.711 and Opus for calls between a legacy PBX and a cloud calling provider. The gateway is a Cisco 4451-X ISR with a PVDM4 module installed. During design review, a colleague proposes using Local Transcoding Interface (LTI) rather than the traditional SCCP-controlled DSP farm profile. Which statement correctly describes a key characteristic of the LTI approach for provisioning these transcoding resources on the CUBE?

A CUBE is sending calls to an ITSP that requires the called number in the format 91XXXXXXXXXX, but CUCM forwards the called number to CUBE as a 10-digit national number (XXXXXXXXXX). The engineer must prepend '91' to the called number only on the outbound dial peer facing the ITSP, without affecting inbound matching or other dial peers. Which configuration on the outbound VoIP dial peer accomplishes this?

A CUBE has two outbound VoIP dial peers matching calls to the PSTN provider. Dial peer 100 is configured with 'preference 1' and points to the primary ITSP session target, while dial peer 200 has 'preference 0' pointing to a backup ITSP. Both dial peers use the identical 'destination-pattern 9T' and both session targets are reachable. When a user dials a PSTN number, which dial peer does CUBE select first, and why?

An engineer is configuring a CUBE to send outbound calls to an ITSP that provides two SIP proxy IP addresses (198.51.100.10 and 198.51.100.11) for redundancy. The requirement is that a single outbound dial peer must be able to try both proxies, distributing new call attempts across them, and failing over to the second proxy if the first is unreachable. Which configuration approach meets this requirement?

A network engineer is deploying a Cisco Unified Border Element (CUBE) between an internal Cisco Unified Communications Manager cluster and a new SIP service provider. During testing, calls fail because the ITSP sends SIP messages with a Diversion header format that CUCM does not accept, and the provider requires a specific From-header domain that differs from CUCM's internal IP-based host. Which capability of CUBE should the engineer use to resolve these SIP interoperability issues without changing the CUCM or provider configuration?

A company is migrating from PRI circuits to a SIP trunk provided by an Internet Telephony Service Provider (ITSP). The service provider's SIP signaling uses a different codec set and dialing format than the internal Cisco Unified Communications Manager cluster, and security requires that the internal network topology not be exposed to the provider. Which device should the engineer deploy at the network edge to meet these requirements?

A CUBE connects CUCM to an ITSP. Calls forwarded by internal users are being rejected by the ITSP with a 400 Bad Request. A SIP debug shows that outbound INVITEs contain a Diversion header populated with an internal E.164 number that the ITSP does not recognize as a valid subscriber. The provider has confirmed they simply want the Diversion header removed entirely from all outbound INVITEs on the ITSP-facing trunk. Which configuration correctly accomplishes this on CUBE?

A CUBE terminates SIP trunks for two different ITSPs. ITSP-A requires the outbound INVITE to use the domain 'itsp-a.com' in the SIP From and Contact headers, while ITSP-B requires 'itsp-b.net'. Both providers reach the internet through the same egress dial-peer configuration style, but they are separated using 'voice class tenant 100' and 'voice class tenant 200' referenced under their respective outbound dial peers. You have written two separate SIP profiles that rewrite the domain. Where must these SIP profiles be applied so that each ITSP receives only its own domain rewrite without affecting the other trunk?

A CUBE is configured to register to an ITSP on behalf of an on-premises PSTN pilot number using a SIP profile with outbound registration. After configuration, the ITSP reports that no REGISTER requests are being received, and 'show sip-ua register status' on the CUBE shows no entries. Debugging reveals the CUBE is generating no REGISTER traffic at all. Which configuration element is most likely missing?

A CUBE running IOS XE connects a G.729-only ITSP SIP trunk to an internal CUCM cluster where all IP phones are configured to use only G.711ulaw. Calls between the phones and the PSTN fail to establish media, and debugs show a codec negotiation failure. The gateway has spare DSP resources available. Which media resource must you configure on the CUBE to allow these calls to complete?

An engineer configures a CUBE to send calls to an ITSP that rejects any called number containing a leading plus sign. Inbound calls from CUCM arrive with called numbers in +E.164 format (e.g., +14085551234). The engineer creates the following: 'voice translation-rule 10 / rule 1 /^\+/ //' and 'voice translation-profile TO-ITSP / translate called 10'. Where must this translation profile be applied so that the plus is stripped before the digits are sent to the ITSP?

A company deploys a Cisco Unified Border Element (CUBE) to connect their on-premises CUCM cluster to a SIP service provider. After configuration, outbound calls connect and both parties hear ringback, but once the call is answered there is complete two-way silence. SIP signaling completes normally, and 'show voip rtp connections' on the CUBE shows local and remote RTP entries being created for each call. A packet capture on the service provider-facing interface shows outbound RTP packets leaving the CUBE, but no inbound RTP is ever received. What is the MOST likely cause?

A UCM administrator configures two route patterns for an international customer: '9.011!' for international dialing and '9.[2-9]XXXXXXXXX' for domestic 10-digit calls. Users report that when they dial international numbers, the call is delayed by about 15 seconds before it actually connects. Domestic calls route immediately. What is the MOST likely cause of the delay, and what should the administrator do to fix it?

A CCNP engineer is reviewing the CUCM dial plan after auditing found unexpected international calls originating from the auto-attendant/IVR ports. Investigation shows external callers reached the IVR, then used a menu option that performed a call transfer to an external number the IVR passed dynamically. The service parameter 'Block OffNet To OffNet Transfer' is currently set to False. Which single service parameter change most directly prevents an incoming off-net (external) call from being transferred back out to another off-net destination through CUCM?

You are planning a standard (L2) upgrade of a Cisco Unified Communications Manager cluster consisting of one publisher, two call-processing subscribers, and one dedicated TFTP subscriber. To minimize risk and follow Cisco's recommended cluster upgrade sequence, in what order should the nodes have the new software installed to the inactive partition?

A collaboration engineer is performing a major upgrade of a Cisco Unified Communications Manager cluster running an active/inactive partition design. After installing the upgrade COP/ISO on the publisher and all subscribers, the new software is loaded into the inactive partition while production continues on the active partition. Management asks how the cluster will actually begin running the new version with minimal service disruption. Which action correctly transitions the cluster to the new software?

A CCNP engineer is configuring globalized call routing on Cisco UCM. Inbound PSTN calls arrive on a SIP trunk with the calling number in national format (e.g., 4085551234 for a US number). The engineer wants the calling number displayed on phones as a +E.164 number so that missed-call directory entries can be dialed back directly. Which UCM configuration element should be applied on the inbound side to convert the incoming national calling number into +E.164 format?

A CCNP Collaboration engineer is deploying globalized call routing across a multinational Cisco UCM cluster. All internal routing uses +E.164 in a single global partition. An inbound PSTN call arrives on a gateway in the London site with the called party number '02071234567' (national format for a UK DID). The engineer needs the call to route to the destination phone, whose DN is provisioned as '+442071234567'. Where should the engineer apply the transformation to convert the incoming national number into +E.164 before digit analysis?

A company wants to restrict access to expensive international dialing so that only authorized employees can place these calls, while still allowing them from any phone in the building. Rather than restricting the route pattern to a specific device pool or partition, management wants each user to enter a personal PIN before the call completes, with the code logged to CDR for accounting. Which Cisco UCM feature should the engineer configure on the international route pattern to meet this requirement?

An administrator has configured LDAP synchronization in Cisco UCM to import users from Active Directory. LDAP Authentication has NOT been enabled. A newly synced end user reports they cannot log in to the Self-Care Portal using their Active Directory password. What is the most likely reason?

An administrator configures LDAP synchronization on Cisco UCM against a corporate Active Directory. After the first sync completes, only about 40% of the expected users appear in End User Management, and several important departments are entirely missing. The LDAP directory configuration points to the correct base DN at the domain root, and authentication to AD succeeds. What is the MOST likely cause of the incomplete user population?

An administrator integrates Cisco UCM with the corporate Microsoft Active Directory. After configuring and running an LDAP directory synchronization, end users are imported successfully and appear in the End User list. However, when users try to log in to the Self-Care Portal using their AD password, authentication fails, while a local admin account still works fine. What must the administrator configure to resolve this?