300-810 Sample Questions & Answers
Jabber client service discovery and installation ties with voicemail and toll-fraud prevention in Unity Connection for the top spot, alongside Unified IM and Presence configuration, and collaboration-app single sign-on through SAML.
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- Question 1Intermediate
Cisco Unified IM and Presence · Configure Cisco Unified Instant Message and Presence on premises
A healthcare organization needs to implement a secure XMPP federation between their Cisco IM and Presence cluster and a partner hospital's third-party XMPP system. The security policy mandates that all server-to-server communication must be encrypted and mutually authenticated. Which of the following is the most critical component to enable this secure federation?
graph TD subgraph Hospital A (Cisco IM&P) IMP_A[IM&P Server] end subgraph Hospital B (3rd Party XMPP) XMPP_B[XMPP Server] end Internet((Internet)) IMP_A -- Encrypted TCP 5269 --> Internet Internet -- Encrypted TCP 5269 --> XMPP_B XMPP_B -- Encrypted TCP 5269 --> Internet Internet -- Encrypted TCP 5269 --> IMP_AShow answer & explanation
Correct answer: C
While DNS SRV records are essential for discovering the federation partner, the core requirement for secure, mutually authenticated communication is TLS. This requires both XMPP servers to have a TLS certificate. For mutual authentication to work without manual trust configuration, these certificates must be signed by a Certificate Authority that is trusted by both systems. Using a public CA is the standard way to achieve this, as both servers will inherently trust the CA's root certificate.
- Question 2Advanced
Application Clients · Troubleshoot Cisco Jabber Instant Messaging and Presence
During a Cisco Jabber deployment, users on the internal corporate network can log in successfully, but users connecting from home via MRA (Mobile and Remote Access) cannot. The MRA deployment is functional for SIP registration and calling. A packet capture on the Expressway-E shows that the client's XMPP connection attempt is being reset. What is the most likely reason for this Jabber login failure over MRA?
Show answer & explanation
Correct answer: B
For MRA to proxy XMPP traffic correctly, the Expressway-C must be configured with the IM and Presence domain. When a Jabber client connects, the Expressway-E forwards the request to the Expressway-C, which then inspects the XMPP 'to' address. If the domain in that address is not listed in its configured domains, it will reject the connection. This is a fundamental step in enabling IM&P services over MRA.
- Question 3Intermediate
Cisco Unity Connection and Cisco Unity Express · Implement toll fraud prevention
A financial institution is using Cisco Unity Connection for voicemail. To comply with regulations, they must prevent users from forwarding voicemails containing sensitive client information outside of their designated department. Which Unity Connection feature should be used to enforce this policy?
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Correct answer: C
Restriction Tables are the primary mechanism in Unity Connection for controlling call transfers and message forwarding. An administrator can create a custom restriction table that defines patterns for allowed and blocked numbers. By applying this table to the users' Class of Service, the system can prevent them from forwarding messages or transferring calls to any number not explicitly permitted, such as extensions belonging to other departments or external numbers.
- Question 4Intermediate
Cisco Unity Connection and Cisco Unity Express · Troubleshoot Cisco Unity Express integration to Cisco Unified CME
A Cisco Unity Express module integrated with CME is configured with a basic auto-attendant script. Callers report that when they dial the main number, they hear the welcome greeting, but when they enter a valid extension, the call fails. The administrator verifies that the extensions are correctly configured in CME and as mailboxes in CUE. Which is the most likely cause of the issue in the CUE auto-attendant configuration?
Show answer & explanation
Correct answer: D
In Cisco Unity Express, for the auto-attendant to be able to transfer a call to an extension on the CME, that extension must fall within a range defined by the
call-redirectcommand. This command explicitly tells the CUE which number patterns it is allowed to transfer calls to. If an extension is dialed that is not covered by acall-redirectentry, CUE will consider it an invalid number and the transfer will fail. - Question 5Advanced
Cisco Unity Connection and Cisco Unity Express · Describe digital networking in multicluster deployments in Cisco Unity Connection
A company has two Cisco Unity Connection clusters in different geographic locations, connected via Digital Networking. A user from Site A leaves a message for a user in Site B. Which statement accurately describes how the message and notification are handled?
sequenceDiagram participant UserA as User A (Site A) participant CUC_A as Unity Connection (Site A) participant CUC_B as Unity Connection (Site B) participant UserB as User B (Site B) UserA->>CUC_A: Leaves Voicemail for User B CUC_A->>CUC_B: Replicates Message Body CUC_B-->>CUC_A: Acknowledges Replication CUC_B->>UserB: Activates MWI UserB->>CUC_B: Retrieves MessageShow answer & explanation
Correct answer: B
In a Unity Connection Digital Network, when a message is left for a user on a remote system, the entire message (including the voice recording) is replicated over the network link to the recipient's home cluster. The home cluster (Site B) then takes ownership of the message, stores it in its local database, and handles all subsequent actions, such as activating the Message Waiting Indicator (MWI) and providing access for message retrieval. This ensures that users always interact with their local voicemail system, optimizing performance and WAN bandwidth.
- Question 6Advanced
Cisco Unified IM and Presence · Configure Cisco Unified Instant Message and Presence on premises
Case Study:
A global consulting firm, 'Innovate Solutions,' is upgrading its collaboration infrastructure. The firm has a primary data center in New York and a disaster recovery (DR) site in London. They have a single CUCM cluster with subscribers in both locations. They are now deploying a new Cisco IM and Presence cluster and require a high-availability solution that can withstand a full data center outage.
Current Situation: The CUCM cluster is already configured for geographic redundancy. The IM&P deployment is new. The network link between New York and London has 150ms of round-trip latency. The firm uses persistent chat for project collaboration, which must also be highly available.
Requirements:
- IM&P services must remain active for all users if the New York data center fails.
- Persistent Chat rooms and history must be preserved and available after a failover.
- The solution must be officially supported by Cisco.
Proposed Design: The lead architect proposes deploying the primary IM&P publisher and a subscriber in New York, and a secondary subscriber in London. All three servers will be part of the same IM&P cluster. The primary Presence Redundancy Group will consist of the New York subscriber (primary) and the London subscriber (secondary).
Which statement identifies a critical flaw in this proposed design?
Show answer & explanation
Correct answer: C
The proposed design is flawed because Cisco IM and Presence has a strict requirement for network latency between nodes in the same cluster. The maximum supported round-trip time (RTT) is 80ms. The described latency of 150ms is nearly double the supported maximum. This high latency will cause database replication to fail, leading to an unstable cluster and unreliable failover. The correct solution would be to deploy two separate IM&P clusters and use intercluster federation, not a single stretched cluster.
- Question 7Intermediate
Application Clients · Troubleshoot certificate validation for Jabber clients
When troubleshooting Cisco Jabber certificate validation errors, an administrator captures a packet trace and observes that during the TLS handshake, the server presents a certificate, but the Jabber client immediately terminates the connection with a 'Certificate Unknown' alert. The server certificate is valid and signed by the organization's internal Enterprise CA. What is the most likely cause of this issue?
Show answer & explanation
Correct answer: A
The 'Certificate Unknown' error indicates that the client does not trust the authority that signed the server's certificate. For a certificate issued by an internal Enterprise CA to be trusted, the client's operating system must have the CA's root certificate installed in its trust store. Without the root certificate, the client cannot validate the trust chain and will reject the connection as a security precaution.
- Question 8Beginner
Single Sign-On (SSO) for Collaboration Applications · Describe these components of SAML 2.0 and later
What is the primary function of the SAML assertion in an SSO transaction involving a Cisco Collaboration application?
Show answer & explanation
Correct answer: C
The SAML assertion is the core of the SSO process. After the Identity Provider (IdP) successfully authenticates a user, it generates a digitally signed XML document called an assertion. This assertion contains statements (or claims) about the user, such as their identity (e.g., username), attributes (e.g., department), and the fact that they have been authenticated. The Service Provider (the Cisco application) receives this assertion, validates its signature and timestamps, and uses the information within it to grant the user access without requiring a separate password.
- Question 9IntermediateSelect 2
Cisco Unified IM and Presence · Configure Cisco Unified Instant Message and Presence on premises
An administrator needs to configure calendar integration for the Cisco IM and Presence service with Microsoft Office 365. Which TWO authentication methods are supported for this integration? (Select TWO).
Show answer & explanation
Correct answers: A, C
- Question 10Advanced
Cisco Unity Connection and Cisco Unity Express · Troubleshoot these in Cisco Unity Connection
A user reports that their Message Waiting Indicator (MWI) light on their IP Phone is not turning on when they have new voicemails in Cisco Unity Connection. The administrator has confirmed that the MWI extensions are correctly configured in both CUCM and Unity Connection, and the phone is registered. What command on the Unity Connection CLI would be most useful for real-time troubleshooting of MWI notifications being sent to CUCM?
Show answer & explanation
Correct answer: D
The
utils cti mwi trace oncommand enables real-time tracing for the MWI service on the Unity Connection CLI. This is the most direct and effective tool for troubleshooting MWI issues. The output will show the MWI events as they happen, including attempts to turn on or off the MWI light for a specific extension. It provides detailed information about the notification sent to CUCM, which can help identify failures in the process.
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