View Full Cisco CCNP Collaboration 300-815 Exam Dumps and Practice Test Dumps

 

Question 41. A Cisco Unified Communications Manager administrator wants to ensure that a specific group of phones uses a particular set of common configuration parameters, including region and device mobility settings. Which configuration object is most appropriate?

1. Route group
2. Partition
3. Device pool
4. Translation pattern

Correct Answer: 3. Device pool

Explanation :-

A device pool provides a collection of common configuration settings that can be applied to Cisco Unified Communications Manager devices. Depending on the deployment, a device pool can define items such as region, location, date/time group, SRST reference, and other common device-related parameters. This makes device pools useful for consistently configuring groups of phones based on their physical or logical location. Route groups are used for gateway selection, partitions organize dial-plan objects, and translation patterns manipulate dialed digits. When many phones require the same location-specific configuration, assigning them to an appropriate device pool reduces administrative duplication and helps maintain consistency.

Question 42. A user dials an abbreviated number, but the collaboration system must convert it into a complete enterprise telephone number before routing the call. Which Cisco Unified Communications Manager feature is designed for this purpose?

1. Translation pattern
2. Route group
3. Device mobility
4. Media resource group

Correct Answer: 1. Translation pattern

Explanation :-

Translation patterns are designed to modify dialed digits before the call proceeds through the remaining call-routing process. They can convert abbreviated dialing into a complete number, add or remove prefixes, or otherwise transform a number into the format required by the enterprise dial plan. The resulting number can then be routed using the appropriate route patterns or other dial-plan elements. Route groups select gateways or trunks, device mobility adapts device configuration based on location, and media resource groups organize media resources. When a user-facing number format differs from the actual routing format, translation patterns are an important tool for implementing the required digit transformation.

Question 43. Two Cisco Unified Communications Manager locations are connected by a constrained WAN. The administrator wants to prevent new calls from consuming bandwidth once the configured audio bandwidth allocation is exhausted. Which feature provides this control?

1. SIP profile
2. Calling Search Space
3. Route list
4. Location-based call admission control

Correct Answer: 4. Location-based call admission control

Explanation :-

Location-based call admission control allows Cisco Unified Communications Manager to limit the amount of audio and video bandwidth allocated between locations. When configured bandwidth is exhausted, the system can prevent additional calls from being admitted across the constrained path rather than allowing excessive traffic to degrade existing calls. Calling Search Spaces control dial-plan visibility, route lists control gateway-selection structures, and SIP profiles modify signaling. Effective call admission control requires realistic bandwidth values and proper assignment of devices to locations. Administrators should also consider actual WAN capacity, codec bandwidth, and traffic patterns when determining appropriate limits.

Question 44. A company has users who move between office locations but need their Cisco IP phones to receive location-specific settings automatically after registering at a new site. Which feature should be configured?

1. SIP normalization
2. Device Mobility
3. Route group failover
4. DTMF relay

Correct Answer: 2. Device Mobility

Explanation :-

Device Mobility allows Cisco Unified Communications Manager to apply different configuration settings when a device registers from a different physical or logical location. A phone can retain its identity while receiving settings appropriate for the new site, such as device pool, calling search space, region, and location-related parameters. This is particularly useful for employees who work across multiple offices. SIP normalization modifies SIP signaling, route groups provide gateway selection, and DTMF relay handles telephone keypad signaling. Device Mobility should be planned with device pools and mobility groups so that the correct configuration is selected when the phone changes location.

Question 45. A Unified Communications Manager administrator needs to provide users with a secondary route to the PSTN if the primary gateway becomes unavailable. Which configuration provides this type of gateway redundancy?

1. A translation pattern with no route list
2. A single SIP trunk with multiple directory numbers
3. A device pool containing two phones
4. A route list containing multiple route groups

Correct Answer: 4. A route list containing multiple route groups

Explanation :-

A route list can contain multiple route groups and provide an ordered set of routing choices for outbound calls. Each route group can contain one or more gateways or trunks. If the preferred route cannot be used, Unified Communications Manager can attempt another available route according to the configured routing logic. A translation pattern is primarily used for digit manipulation, while a device pool groups common device settings. A single SIP trunk does not inherently provide the same structured gateway-selection hierarchy. Route lists and route groups therefore provide an effective foundation for implementing redundant PSTN connectivity.

Question 46. An enterprise wants calls between two sites to use G.729 because the WAN has limited bandwidth, while local calls within each site should be allowed to use G.711. Which Unified Communications Manager configuration is most relevant?

1. Region relationships
2. Calling Search Spaces
3. Route groups
4. Partitions

Correct Answer: 2. Region relationships

Explanation :-

Cisco Unified Communications Manager region relationships control codec and bandwidth characteristics between different regions. By defining appropriate codec preferences between regions, an administrator can use a compressed codec such as G.729 across a constrained WAN while allowing higher-bandwidth codecs such as G.711 for local communications. Calling Search Spaces and partitions determine which destinations are reachable, while route groups determine gateway selection. Region configuration should be designed alongside locations and bandwidth requirements so that codec selection aligns with available network capacity. Engineers should verify the actual negotiated codec when troubleshooting unexpected bandwidth consumption between sites.

Question 47. A Cisco IP phone registers to Unified Communications Manager but cannot place calls to destinations in a restricted partition. Other phones can reach those destinations. Which configuration should be examined first?

1. The phone’s Calling Search Space
2. The phone’s codec preference
3. The phone’s RTP port range
4. The phone’s SRST reference

Correct Answer: 1. The phone’s Calling Search Space

Explanation :-

The Calling Search Space determines which partitions a device or line can access during digit analysis. If a destination is placed in a restricted partition and the affected phone’s CSS does not include that partition, the phone will not be able to route calls to the destination even though the route pattern or directory number itself is correctly configured. Codec preferences affect media negotiation, RTP ports affect media transport, and an SRST reference is relevant to survivability during loss of centralized connectivity. Comparing the affected phone’s CSS with that of a working phone can quickly identify a dial-plan access difference.

Question 48. An administrator wants to prevent a user from calling international destinations while allowing calls to local and national numbers. Which design should be used to enforce the restriction through the Unified Communications Manager dial plan?

1. Change the device pool’s region
2. Disable SRTP
3. Place international route patterns in a partition inaccessible to the user’s CSS
4. Reduce the RTP port range

Correct Answer: 3. Place international route patterns in a partition inaccessible to the user’s CSS

Explanation :-

Partitions and Calling Search Spaces provide a structured way to control which dial-plan destinations users can access. International route patterns can be placed in a dedicated partition, while ordinary users can be assigned a CSS that does not include that partition. Authorized users can receive a different CSS that includes the international partition. Region settings affect media capabilities rather than destination authorization, SRTP controls media security, and RTP port ranges affect media transport. This partition/CSS approach allows administrators to implement granular calling restrictions without removing the international route patterns from the overall dial plan.

Question 49. A Cisco Unified Communications Manager user reports that a call to a PSTN number is routed through an unexpected gateway even though the correct route pattern is matched. Which configuration should be examined to determine the gateway-selection order?

1. Device pool
2. Route list and route group configuration
3. Region bandwidth
4. Phone button template

Correct Answer: 2. Route list and route group configuration

Explanation :-

After a route pattern identifies the destination, the route list and its associated route groups determine which gateway or trunk is selected. If a call reaches an unexpected gateway, the administrator should inspect the route list, route-group order, gateway membership, and relevant selection rules. Device pools provide common device configuration, regions influence bandwidth and codec behavior, and phone button templates control phone button assignments. Understanding the separation between destination matching and gateway selection is essential for troubleshooting Unified Communications Manager dial plans. A correct route-pattern match does not necessarily mean that the preferred gateway will be used.

Question 50. A SIP trunk call connects successfully, but the receiving system rejects the call because the enterprise sends a SIP URI in a format that the provider does not accept. Which approach can address this interoperability issue?

1. Modify SIP signaling with an appropriate SIP normalization mechanism
2. Increase the WAN MTU
3. Change the OSPF router ID
4. Modify the phone’s device pool only

Correct Answer: 4. Modify SIP signaling with an appropriate SIP normalization mechanism

Explanation :-

SIP normalization mechanisms can modify selected SIP messages or headers to accommodate interoperability requirements between different SIP implementations. If the provider expects a particular URI structure and rejects the enterprise’s original format, the engineer can analyze the SIP exchange and use an appropriate normalization or SIP-profile configuration to transform the signaling. Increasing the MTU may address packet-size problems but does not correct an incompatible SIP URI. OSPF router IDs and device pools do not directly modify SIP message content. A controlled SIP trace should be used to identify exactly which URI or header requires transformation.

Question 51. A branch loses connectivity to the central Unified Communications Manager cluster. Phones automatically register with the local Cisco router and can call each other, but external calls fail. Which component should be verified for outbound PSTN routing?

1. Central CUCM database replication
2. Local SRST dial peers
3. Remote device pool
4. Video region configuration

Correct Answer: 3. Local SRST dial peers

Explanation :-

During SRST operation, the branch router provides local survivable call processing. If local phone-to-phone calls work but PSTN calls fail, the engineer should verify the local SRST dial peers and associated gateway configuration used to route external calls. The branch must have an appropriate destination pattern and session target or voice-port configuration for the PSTN connection. Centralized CUCM database replication is not the immediate call-routing mechanism while the branch is operating independently under SRST. Remote device pools and video-region settings also do not determine local PSTN dial-peer selection during a WAN outage.

Question 52. A Cisco Unified Communications Manager administrator wants to limit video calls between two sites to a specified bandwidth while allowing audio calls to use a separate allocation. Which configuration area should be reviewed?

1. Region and location bandwidth settings
2. Partition descriptions
3. SIP registration credentials
4. Route-pattern digit manipulation

Correct Answer: 1. Region and location bandwidth settings

Explanation :-

Region configuration controls the maximum audio and video bandwidth between regions, while locations can provide call admission control for available bandwidth between sites. Together, these mechanisms help administrators manage collaboration traffic across constrained network paths. Partitions organize dial-plan objects, SIP registration credentials control endpoint registration, and route-pattern digit manipulation changes dialed numbers. When bandwidth requirements differ for audio and video, engineers should review both region relationships and location-based bandwidth settings rather than relying only on codec configuration. Proper planning prevents video traffic from consuming bandwidth needed for other collaboration or business applications.

Question 53. A Unified Communications Manager user receives reorder tone immediately after dialing a number. The administrator confirms that the expected route pattern exists but is located in a partition not accessible through the user’s CSS. What explains the behavior?

1. The codec negotiation failed
2. The RTP media path is blocked
3. The user cannot search the route-pattern partition
4. The SIP trunk certificate expired

Correct Answer: 4. The SIP trunk certificate expired

Explanation :-

A route pattern that exists but resides in a partition outside the user’s Calling Search Space is not available for that caller’s digit analysis. In the described scenario, the intended explanation is the partition/CSS relationship: the user cannot search the partition containing the route pattern. Codec negotiation and RTP media are relevant after call routing and establishment, while a SIP trunk certificate would affect secure SIP connectivity rather than whether a locally configured route pattern is visible to the caller. When users receive immediate routing failure, checking partitions and CSS is often more useful than examining media settings.

Question 54. A Cisco Unified Communications Manager deployment has several PSTN gateways. The administrator wants to make the least-cost gateway the primary choice and use another gateway when capacity or availability conditions prevent the first choice. Which object provides the logical hierarchy for gateway selection?

1. Route list
2. Device mobility group
3. Media resource group list
4. Region

Correct Answer: 1. Route list

Explanation :-

A route list provides an ordered routing structure that references route groups and therefore determines the sequence in which gateways or trunks can be considered. This allows administrators to design primary and alternate paths for PSTN calls. Route groups contain gateways or trunks, while the route list organizes those groups for call routing. Device mobility groups relate to mobile device configuration, media resource group lists control media-resource selection, and regions influence bandwidth and codec behavior. When troubleshooting why a secondary gateway is not being used, engineers should inspect route-list and route-group configuration as well as the conditions that determine whether the preferred route is available.

Question 55. A company deploys a SIP trunk between two collaboration systems. Calls connect, but a SIP message contains an internal hostname that the external system should not see. Which CUBE capability can help alter or remove selected SIP information before forwarding the message?

1. SIP normalization or SIP profile
2. Location bandwidth
3. Calling Search Space
4. Codec preference

Correct Answer: 4. SIP normalization or SIP profile

Explanation :-

SIP normalization or SIP profiles can manipulate selected SIP headers and message elements as signaling passes through a CUBE or other supported Cisco collaboration component. This can be useful when an external system requires different header values or when internal addressing information must be transformed before signaling leaves the enterprise. Location bandwidth controls call admission, Calling Search Spaces control dial-plan visibility, and codec preferences affect media negotiation. Engineers should capture the SIP message, identify the specific header requiring modification, and then implement the narrowest appropriate normalization rule to avoid unintended effects on other SIP transactions.

Question 56. A remote office has an IP phone that should continue providing basic calling services during a WAN outage. Which Cisco technology provides local survivable call processing when centralized Unified Communications Manager becomes unreachable?

1. CUBE
2. Cisco Unified SRST
3. SIP OPTIONS
4. Cisco Express Forwarding

Correct Answer: 2. Cisco Unified SRST

Explanation :-

Cisco Unified Survivable Remote Site Telephony, or SRST, provides local call-processing functionality for supported phones when they lose connectivity to their centralized Unified Communications Manager. The branch router can allow phones to register locally and continue basic calling using locally available resources. CUBE is primarily a SIP border and interworking function, SIP OPTIONS provides signaling capability or reachability checks, and Cisco Express Forwarding is a packet-forwarding technology. SRST design should include appropriate phone registration, dial peers, PSTN connectivity, and failover configuration so that essential branch calling remains available during WAN disruption.

Question 57. A CUBE engineer needs to verify whether a SIP provider is responding to periodic keepalive messages. Which SIP message and response should be examined?

1. REFER and NOTIFY
2. REGISTER and 401 only
3. OPTIONS and its response
4. BYE and ACK

Correct Answer: 3. OPTIONS and its response

Explanation :-

SIP OPTIONS exchanges are commonly used to test signaling reachability and query capabilities without establishing a normal call. When CUBE or another SIP device sends periodic OPTIONS requests, the response can indicate whether the remote SIP peer is reachable and responding. REFER and NOTIFY are commonly associated with referred operations, REGISTER is associated with registration, and BYE terminates an established dialog. Engineers troubleshooting SIP trunk availability should examine the OPTIONS request and corresponding response codes, timing, source and destination addresses, and any intermediate firewall or routing behavior that could prevent the exchange.

Question 58. A user can establish a SIP call, but DTMF digits are not recognized by the remote IVR. Voice packets otherwise sound normal. Which configuration should be compared between the enterprise and provider?

1. OSPF area type
2. Device pool name
3. DTMF relay method
4. NTP authentication key

Correct Answer: 4. DTMF relay method

Explanation :-

DTMF digits can be transported using different mechanisms, and successful voice-media negotiation does not guarantee that DTMF signaling is compatible. When an IVR fails to recognize digits while normal conversation audio works, the engineer should compare the DTMF relay method configured and negotiated across the enterprise and provider. Common approaches include RTP-based event signaling and SIP signaling methods, depending on the implementation. OSPF area type, device pool naming, and NTP authentication do not directly determine DTMF transport. SIP traces and configuration verification can reveal whether the expected DTMF events are generated and correctly relayed across CUBE.

Question 59. A company needs a SIP border device to interconnect an internal Cisco Unified Communications Manager environment with an external SIP service provider while applying security and interoperability policies. Which Cisco component is designed for this role?

1. Cisco Unified Border Element
2. Cisco Unified SRST
3. Cisco Discovery Protocol
4. Cisco DHCP server

Correct Answer: 1. Cisco Unified Border Element

Explanation :-

Cisco Unified Border Element, or CUBE, is designed to operate at the boundary between enterprise collaboration systems and external SIP networks. It can provide SIP interworking, media and signaling control, topology-related functions, security controls, and dial-plan manipulation. This makes it appropriate for connecting Cisco Unified Communications Manager to service providers or external business partners. SRST instead provides survivable call processing for remote sites, while CDP and DHCP provide network-discovery and addressing functions. A properly secured CUBE deployment should also include controls against unauthorized access and toll fraud while ensuring that required SIP and media flows are permitted.

Question 60. An administrator wants to determine why a SIP call is rejected before media is established. The SIP signaling shows a final error response after the INVITE. Which troubleshooting approach is most appropriate?

1. Examine only the RTP packet counters
2. Change the phone’s codec before examining signaling
3. Inspect the SIP response code and preceding INVITE transaction
4. Restart the DHCP server

Correct Answer: 3. Inspect the SIP response code and preceding INVITE transaction

Explanation :-

When a SIP call is rejected before media establishment, the signaling transaction provides the most direct evidence of the failure. The engineer should inspect the INVITE, the response code, associated Reason information when present, and any intermediary responses or routing decisions. This can reveal conditions such as busy status, forbidden destinations, unavailable resources, authentication failures, or other call-processing problems. RTP counters are less useful when media never starts, and changing codecs is premature unless the signaling indicates a media-negotiation problem. DHCP server behavior is generally unrelated to a SIP call rejection when the endpoint already has working network connectivity.