View Full Cisco CCNP Collaboration 350-801 Exam Dumps and Practice Test Dumps.

 

Question 261

Which CUCM feature determines which partitions a phone can access when placing a call?

1. Device Pool
2. Route Group
3. Region
4. Calling Search Space

Correct Answer: 4

Explanation

A Calling Search Space, or CSS, determines which partitions a phone, line, or user can search when placing a call. Partitions contain destinations such as directory numbers, route patterns, and translation patterns. CUCM evaluates the caller’s CSS to determine whether the requested destination is reachable. Device pools provide common endpoint configuration, route groups organize gateways, and regions control codec and bandwidth relationships. When a phone can reach internal destinations but cannot access certain external numbers, administrators should inspect the CSS assigned to the device or line and verify the target partition. Correct CSS configuration is essential for implementing controlled and predictable dialing behavior.

Question 262

Which CUCM object can modify the digits of a called number before routing continues?

1. Translation Pattern
2. Route Group
3. Device Pool
4. Region

Correct Answer: 1

Explanation

A Translation Pattern is used to manipulate dialed digits before CUCM continues processing the call. Depending on its configuration, it can add, remove, or transform digits to meet enterprise dialing requirements or external network formats. Translation patterns are useful when users dial numbers differently from the format expected by gateways or service providers. Route groups organize gateways, device pools provide common endpoint settings, and regions influence codec and bandwidth relationships. When troubleshooting incorrect outbound numbers, administrators should inspect translation patterns along with partitions, Calling Search Spaces, route patterns, and other digit-manipulation settings to identify where the number is being changed.

Question 263

Which SIP response code generally indicates that the destination is busy?

1. 404
2. 503
3. 486
4. 200

Correct Answer: 3

Explanation

SIP response code 486, commonly shown as Busy Here, generally indicates that the destination is busy and cannot accept the incoming call. This is a client-failure response within the SIP signaling framework. A 404 response indicates that a requested resource was not found, 503 indicates service unavailability, and 200 indicates successful processing. When a call receives a 486 response, administrators should inspect the SIP signaling sequence and determine which endpoint or intermediary generated the response. Other call-forwarding, call-waiting, hunt-group, or voicemail configurations may influence the final behavior. Understanding common SIP response codes helps identify call-processing conditions.

Question 264

Which Cisco platform provides voicemail services for enterprise collaboration users?

1. Cisco CUBE
2. Cisco Unity Connection
3. Cisco Expressway-E
4. Cisco IM and Presence

Correct Answer: 2

Explanation

Cisco Unity Connection provides enterprise voicemail services for supported Cisco collaboration deployments. It manages user mailboxes, greetings, message storage, call handlers, 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 unavailable, administrators should inspect CUCM voicemail configuration, ports, routing, Unity Connection integration, mailbox status, and network connectivity. Proper integration between CUCM and Unity Connection allows users to deposit, retrieve, and manage voicemail messages reliably.

Question 265

Which CUCM configuration provides common settings to a group of IP phones?

1. Device Pool
2. Partition
3. Route Pattern
4. Translation Pattern

Correct Answer: 1

Explanation

A Device Pool provides common configuration settings to a group of IP phones and other supported 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 because multiple endpoints can inherit consistent configuration from one object. Partitions organize dial-plan destinations, route patterns define digit-matching rules, and translation patterns manipulate numbers. When troubleshooting endpoint behavior, administrators should check the assigned device pool because important registration, regional, and redundancy settings may be inherited from it. Proper device-pool design improves consistency and simplifies management across large collaboration deployments.

Question 266

Which protocol is used to synchronize the system clocks of collaboration servers?

1. DNS
2. NTP
3. RTP
4. LDAP

Correct Answer: 2

Explanation

Network Time Protocol, or NTP, is used to synchronize system clocks across collaboration servers and network devices. Accurate time is important for logging, event correlation, authentication, certificate validation, and troubleshooting. DNS provides name resolution, RTP carries real-time media, and LDAP provides directory services. If collaboration servers have significantly different system times, certificate validation and security functions may be affected. Administrators should configure reliable NTP sources and verify synchronization status across CUCM, Unity Connection, Expressway, CUBE, and other relevant systems. Consistent time also makes troubleshooting easier because events recorded by multiple systems can be correlated accurately.

Question 267

Which Cisco technology provides SIP border functionality between an enterprise and an external SIP provider?

1. Cisco Unified Border Element
2. Cisco Unity Connection
3. Cisco IM and Presence
4. Cisco TFTP

Correct Answer: 1

Explanation

Cisco Unified Border Element, or CUBE, provides SIP border functionality between enterprise collaboration systems and external SIP networks. CUBE can perform SIP interworking, header manipulation, topology hiding, media handling, and other border-control functions. Unity Connection provides voicemail, IM and Presence provides messaging and presence, and TFTP supports configuration and firmware distribution for supported endpoints. When external calls fail, administrators should inspect CUBE dial peers, SIP signaling, codec configuration, SIP profiles, NAT, firewall rules, and service-provider requirements. CUBE helps maintain controlled and interoperable SIP connectivity between internal collaboration systems and external service-provider networks.

Question 268

Which SIP method is used to register an endpoint with a SIP registrar?

1. INVITE
2. OPTIONS
3. BYE
4. REGISTER

Correct Answer: 4

Explanation

The SIP REGISTER method is used by an endpoint to register its contact information with a SIP registrar. Registration allows the SIP system to associate an address with the current location or contact information of an endpoint. INVITE establishes or modifies sessions, BYE terminates an established dialog, and OPTIONS can query capabilities or availability. When a SIP endpoint cannot receive calls, administrators should inspect its registration status, authentication, registrar configuration, DNS resolution, network reachability, and registration expiration. Understanding REGISTER transactions is important when troubleshooting endpoint availability because successful registration is generally required before the system can locate the endpoint for incoming calls.

Question 269

Which CUCM object contains gateways that can be selected during call routing?

1. Route Group
2. Region
3. Partition
4. Device Pool

Correct Answer: 1

Explanation

A Route Group contains gateways that CUCM can select during call routing. Multiple gateways can be placed into a route group, allowing administrators to organize gateway resources and provide alternate paths. Route groups are commonly referenced by route lists, which can contain multiple route groups for ordered routing. Regions control codec and bandwidth relationships, partitions organize dial-plan destinations, and device pools provide common endpoint settings. When an outbound call uses an unexpected gateway, administrators should trace the route pattern, route list, route group, and gateway configuration. Gateway availability and routing preferences should also be reviewed to understand the final selection.

Question 270

Which protocol carries real-time audio and video between collaboration endpoints?

1. LDAP
2. DNS
3. RTP
4. NTP

Correct Answer: 3

Explanation

Real-time Transport Protocol, or RTP, carries real-time audio and video media between collaboration endpoints and media resources. RTP uses sequence numbers and timestamps to support proper ordering and timing of media packets. LDAP provides directory services, DNS provides name resolution, and NTP synchronizes clocks. Because RTP traffic is sensitive to delay, jitter, and packet loss, QoS is important in collaboration networks. If signaling succeeds but users experience one-way audio, missing video, or poor quality, administrators should investigate the RTP path, routing, firewall policies, NAT, codec negotiation, and endpoint configuration separately from the signaling path.

Question 271

Which CUCM feature organizes gateways into a logical group for routing purposes?

1. Route Group
2. Calling Search Space
3. Device Pool
4. Region

Correct Answer: 1

Explanation

A Route Group logically organizes gateways that can be used for CUCM call routing. Administrators can place multiple gateways into a route group and then reference that group through a route list. This arrangement supports organized gateway administration and can provide alternate routing paths when multiple gateways are available. Calling Search Spaces control access to partitions, device pools provide common endpoint settings, and regions control codec and bandwidth relationships. When troubleshooting outbound routing, administrators should verify the route pattern, route list, route group, gateway status, and any routing preferences. A clear route-group structure makes complex enterprise dial plans easier to manage.

Question 272

Which technology is used to provide secure encryption for RTP-based media?

1. TLS
2. SRTP
3. SIP
4. DHCP

Correct Answer: 2

Explanation

Secure Real-time Transport Protocol, or SRTP, provides encryption and integrity protection for RTP-based voice and video media. It is specifically designed for real-time communications and helps protect media from unauthorized interception or modification. TLS is generally used to secure signaling connections, SIP provides call signaling, and DHCP supplies network configuration information. Secure collaboration deployments may use TLS and SRTP together because they protect different communication components. When secure media fails, administrators should inspect endpoint capabilities, security profiles, negotiated parameters, certificate-related requirements where applicable, and the media path. Correct SRTP configuration is important for maintaining protected voice and video communication.

Question 273

Which CUCM component provides an ordered collection of route groups?

1. Partition
2. Route List
3. Device Pool
4. Media Resource Group

Correct Answer: 2

Explanation

A Route List provides an ordered collection of route groups that CUCM can use for outbound call routing. It allows administrators to establish primary and alternate gateway paths while keeping the dial plan organized. Route patterns can direct matching calls toward a route list, and the route list then evaluates its route groups according to the configured order and routing behavior. Partitions organize destinations, device pools provide common endpoint settings, and media resource groups organize media resources. When troubleshooting outbound calls, administrators should follow the routing path from the dialed digits through the route pattern, route list, route group, and selected gateway.

Question 274

Which Expressway component is normally located inside the enterprise network in an MRA deployment?

1. Expressway-E
2. Expressway-C
3. CUBE
4. Unity Connection

Correct Answer: 2

Explanation

Expressway-C is normally located inside the enterprise network in a Mobile and Remote Access deployment. It communicates with Expressway-E through a secure traversal relationship and connects toward internal collaboration services such as CUCM. Expressway-E is positioned at the network edge and handles external-facing connectivity. CUBE provides SIP border functions, while Unity Connection provides voicemail. When troubleshooting MRA, administrators should verify traversal zones, certificates, DNS, search rules, firewall policies, authentication, and CUCM integration. Correct Expressway-C placement helps maintain separation between external access and internal collaboration services while enabling supported remote clients to use enterprise collaboration features.

Question 275

Which CUCM object organizes dial-plan destinations into logical groups?

1. Device Pool
2. Route Group
3. Partition
4. Region

Correct Answer: 3

Explanation

A Partition organizes CUCM dial-plan destinations into logical groups. Directory numbers, route patterns, translation patterns, and other objects can be assigned to partitions. Calling Search Spaces then determine which partitions can be searched by particular devices, lines, or users. Device pools provide common endpoint settings, route groups organize gateways, 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 allows organizations to separate dialing privileges and control access to internal, external, emergency, and other destination categories.

Question 276

Which SIP response indicates that a requested service is unavailable?

1. 200
2. 404
3. 486
4. 503

Correct Answer: 4

Explanation

SIP response code 503 indicates that a service is unavailable and cannot currently process the request. The response can occur when a SIP server or service is unavailable or otherwise unable to handle the request. A 200 response indicates successful processing, 404 indicates that a requested resource was not found, and 486 generally indicates a busy destination. When troubleshooting a 503 response, administrators should identify the system that generated it and inspect service status, SIP trunk connectivity, routing, DNS, resource availability, and intermediary devices. Examining the complete SIP signaling exchange helps determine whether the problem originates locally or from another network component.

Question 277

Which CUCM configuration determines the CUCM servers available to an endpoint for registration?

1. CUCM Group
2. Route List
3. Partition
4. Region

Correct Answer: 1

Explanation

A CUCM Group defines the ordered list of CUCM servers available to an endpoint for registration and call processing. Device pools reference CUCM Groups, allowing administrators to apply common registration and redundancy policies to groups of endpoints. If the preferred 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 regions influence codec and bandwidth relationships. During registration troubleshooting, administrators should verify the device pool, CUCM Group order, server status, network connectivity, TFTP information, and endpoint registration state.

Question 278

Which media resource is used to convert between different audio codecs?

1. Conference Bridge
2. Music on Hold
3. Transcoder
4. Annunciator

Correct Answer: 3

Explanation

A transcoder converts media between different codecs when two endpoints cannot communicate using a mutually supported codec. This allows calls to continue when codec capabilities or network requirements differ. Conference bridges support multiparty conferencing, Music on Hold provides audio during hold conditions, and annunciators provide system-generated audio prompts. If signaling succeeds but media negotiation fails because endpoints cannot agree on a codec, administrators should inspect region configuration, codec capabilities, media resource availability, and MRGL assignments. A properly configured transcoder can provide interoperability between endpoints and networks that use different codecs while allowing CUCM to complete the call setup.

Question 279

Which DNS record type is used to advertise a specific service and its port?

1. PTR
2. SRV
3. A
4. CNAME

Correct Answer: 2

Explanation

An SRV record is used to advertise a specific network service and can identify the target hostname and port associated with that service. Cisco collaboration environments use SRV records for service discovery and automatic location of supported services. A records map hostnames to IPv4 addresses, PTR records provide reverse DNS information, and CNAME records provide aliases. When collaboration clients or systems fail to discover a required service, administrators should verify the SRV record, target hostname, associated A or AAAA records, DNS server reachability, and service availability. Accurate DNS service discovery is particularly important for distributed and remote collaboration architectures.

Question 280

Which CUCM media-resource configuration determines the media resources available to an endpoint?

1. Route Pattern
2. Calling Search Space
3. Media Resource Group
4. Media Resource Group List

Correct Answer: 4

Explanation

A Media Resource Group List, or MRGL, determines which Media Resource Groups and their associated media resources are available to an endpoint. MRGLs can provide controlled access to resources such as conference bridges, transcoders, annunciators, and other media services. A Media Resource Group organizes the resources themselves, while route patterns handle call routing and Calling Search Spaces control access to dial-plan partitions. If an endpoint cannot access a conference bridge or transcoder, administrators should check its MRGL assignment, the referenced MRGs, and the registration status of the media resources. Correct MRGL configuration helps ensure predictable media-resource selection and availability.