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

 

Question 121

Which CUCM feature allows administrators to assign a group of directory numbers to a specific dial-plan segment?

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

Correct Answer: 3

Explanation

A partition is used in Cisco Unified Communications Manager to organize directory numbers and other dial-plan destinations into logical groups. Calling Search Spaces then determine which partitions a device, line, or user can access. This structure allows administrators to implement calling restrictions and separate different classes of destinations. Device pools provide common endpoint configuration, regions influence codec and bandwidth settings, and route groups organize gateways. When a user cannot reach a particular extension or external number, administrators should verify both the destination partition and the caller’s Calling Search Space. Proper partition design is fundamental to predictable CUCM dial-plan behavior.

Question 122

Which SIP method is commonly used by a SIP endpoint to register its current location with a registrar?

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

Correct Answer: 1

Explanation

The SIP REGISTER method allows an endpoint to inform a SIP registrar about its current contact information. This enables the SIP system to associate a user or address-of-record with the endpoint’s reachable location. INVITE is used to establish or modify sessions, BYE terminates an established session, and OPTIONS can query capabilities or availability. In collaboration environments, registration problems can result from incorrect credentials, DNS failures, network connectivity issues, certificate problems, or server configuration. When a SIP endpoint fails to register, administrators should inspect the REGISTER exchange, authentication responses, network path, and registrar configuration to identify the underlying issue.

Question 123

Which CUCM configuration is commonly used to provide a standardized set of settings to multiple IP phones?

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

Correct Answer: 2

Explanation

A Device Pool provides a standardized collection of configuration settings that can be assigned to multiple Cisco IP phones and other endpoints. Depending on the deployment, a device pool can specify items such as CUCM Group, region, date/time group, SRST reference, and other shared settings. This reduces repetitive administration and ensures consistency among endpoints at the same location or with similar requirements. Partitions organize dial-plan destinations, route patterns define digit matching, and translation patterns modify numbers. When deploying many phones, administrators can create appropriate device pools and assign devices according to location, network characteristics, and desired call-processing behavior.

Question 124

Which protocol is used to synchronize clocks between Cisco collaboration servers and network devices?

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

Correct Answer: 4

Explanation

Network Time Protocol, or NTP, synchronizes system clocks between collaboration servers and network devices. Accurate and consistent time is important for certificate validation, authentication, event logging, troubleshooting, and other security-related functions. LDAP provides directory services, SIP handles session signaling, and RTP transports real-time media. Administrators should configure reliable NTP sources and verify that collaboration servers are actually synchronized rather than merely configured with an NTP address. If certificate validation or authentication behaves unexpectedly, incorrect system time should be considered as a possible cause. Monitoring synchronization status helps maintain reliable operation across a distributed Cisco collaboration environment.

Question 125

Which component is responsible for providing voicemail boxes and message storage for Cisco collaboration users?

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

Correct Answer: 1

Explanation

Cisco Unity Connection provides voicemail services, including user mailboxes, message storage, greetings, call handlers, and voicemail access. It can integrate with CUCM so unanswered or busy calls can be redirected to the appropriate mailbox. Expressway-E provides edge connectivity, CUBE provides SIP border functions, and IM and Presence supports messaging and presence services. When troubleshooting voicemail delivery, administrators should verify the CUCM voicemail configuration, voicemail ports, call routing, Unity Connection mailbox settings, and network connectivity. Correct integration ensures that calls are redirected appropriately and that users can access stored messages through supported voicemail interfaces and client applications.

Question 126

Which CUCM object is primarily responsible for matching dialed digits against a configured pattern?

1. Route Group
2. Media Resource Group
3. Route Pattern
4. Device Pool

Correct Answer: 3

Explanation

A route pattern defines a digit pattern that CUCM can use to match a dialed number and determine the appropriate routing action. Route patterns can direct calls toward route lists, gateways, or other configured destinations depending on the dial-plan design. Route groups organize gateways, media resource groups organize media resources, and device pools provide shared endpoint configuration. When an outbound call is routed incorrectly, administrators should examine the dialed digits, route pattern, partition, Calling Search Space, route list, and gateway selection. Careful route-pattern design is essential for handling internal extensions, PSTN calls, emergency numbers, and other destinations consistently.

Question 127

Which protocol is designed to protect real-time audio and video by encrypting RTP traffic?

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

Correct Answer: 2

Explanation

Secure Real-time Transport Protocol, or SRTP, protects real-time audio and video by adding security mechanisms to RTP. It can provide encryption, message authentication, and integrity protection for media packets. TLS is generally used to protect signaling connections, SIP provides session signaling, and DHCP provides network configuration. Secure media requires compatible endpoints and successful negotiation of the required security parameters. When troubleshooting a call with working signaling but failed encrypted media, administrators should inspect SRTP negotiation, endpoint capabilities, security profiles, and the media path. Understanding the distinction between TLS and SRTP is important when designing and troubleshooting secure Cisco collaboration deployments.

Question 128

Which Cisco technology provides edge traversal for remote collaboration users without exposing internal CUCM directly to the Internet?

1. Cisco TFTP
2. Cisco CUBE
3. Cisco Unity Connection
4. Cisco Expressway

Correct Answer: 4

Explanation

Cisco Expressway provides secure edge traversal capabilities for supported collaboration services and is commonly used for Mobile and Remote Access. An Expressway deployment separates external access from the internal collaboration infrastructure and can allow remote users to connect without directly exposing CUCM to the public Internet. TFTP provides configuration services, CUBE provides SIP border functionality, and Unity Connection provides voicemail. Expressway deployments require appropriate DNS, certificates, traversal configuration, firewall policies, and CUCM integration. When remote access fails, administrators should examine discovery, authentication, traversal zones, search rules, certificate trust, and network connectivity to identify where the connection is being interrupted.

Question 129

Which CUCM configuration determines which media resources are available to a device?

1. Media Resource Group List
2. Route Pattern
3. Partition
4. Region

Correct Answer: 1

Explanation

A Media Resource Group List, or MRGL, determines the media resource groups that are available to an endpoint or other supported CUCM object. Media Resource Groups can contain resources such as conference bridges, transcoders, and music-on-hold resources. CUCM uses the MRGL to determine which resources can be selected when a service requires them. Route patterns control digit matching, partitions organize dial-plan destinations, and regions control codec and bandwidth relationships. If a phone cannot access a conference bridge or transcoder, administrators should check the assigned MRGL, the referenced MRGs, and the registration or operational status of the media resources.

Question 130

Which SIP response generally indicates that the called endpoint is busy?

1. 404 Not Found
2. 503 Service Unavailable
3. 486 Busy Here
4. 200 OK

Correct Answer: 3

Explanation

SIP response code 486 Busy Here generally indicates that the called endpoint is busy and cannot accept the call in its current state. A 404 response indicates that the requested resource was not found, 503 indicates service unavailability, and 200 OK indicates successful processing. During call troubleshooting, SIP response codes provide useful information about the reason a session was not established or was terminated. Administrators should examine the complete signaling sequence because the response can be influenced by endpoint configuration, call forwarding, dial-plan behavior, or intermediate SIP devices. SIP traces can help identify which system generated the response and why.

Question 131

Which CUCM feature can be used to transform an incoming or outgoing number into a different format?

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

Correct Answer: 2

Explanation

A translation pattern can transform a dialed number before CUCM continues call processing. It can add, remove, or replace digits according to the configured transformation behavior. Translation patterns are useful when an enterprise numbering plan differs from the format expected by another system or service provider. Regions manage codec and bandwidth relationships, device pools provide shared endpoint settings, and route groups organize gateways. When troubleshooting incorrect called or calling numbers, administrators should examine translation patterns, calling search spaces, partitions, and other digit-manipulation settings. A clear numbering strategy helps prevent unexpected transformations and makes the dial plan easier to troubleshoot.

Question 132

Which protocol carries real-time media packets 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 between collaboration endpoints. RTP includes sequence numbers and timestamps that assist receivers in processing media correctly and maintaining synchronization. LDAP supports directory integration, DNS provides name resolution, and NTP provides time synchronization. RTP traffic is sensitive to packet loss, delay, and jitter, which makes QoS particularly important for voice and video networks. If a call establishes successfully but users experience one-way audio, silence, or poor media quality, administrators should investigate the RTP path, routing, NAT, firewall rules, codec negotiation, and endpoint configuration separately from the SIP signaling process.

Question 133

Which CUCM feature allows a group of gateways to be used as a logical routing resource?

1. Route Group
2. Partition
3. Region
4. Calling Search Space

Correct Answer: 1

Explanation

A Route Group provides a logical grouping of gateways that CUCM can use for call routing. Multiple gateways can be included in a route group, allowing administrators to create redundancy and control gateway selection. Route lists can then reference one or more route groups and establish an ordered routing strategy. Partitions and Calling Search Spaces control dial-plan visibility, while regions influence codec and bandwidth behavior. When configuring PSTN connectivity, administrators should verify gateway membership, gateway status, route-group configuration, route-list configuration, and the route patterns that reference the routing structure. Proper route-group design helps provide reliable and organized outbound call routing.

Question 134

Which service allows CUCM to synchronize users from an external directory such as Microsoft Active Directory?

1. RTP
2. LDAP
3. SRTP
4. SIP

Correct Answer: 2

Explanation

LDAP integration allows CUCM to synchronize user information from an external directory such as Microsoft Active Directory. This reduces the need to manually create and maintain every user account in CUCM. LDAP configuration includes directory server information, search bases, credentials, synchronization settings, and other parameters. RTP transports media, SRTP protects media, and SIP handles call signaling. If directory users are missing or synchronization fails, administrators should verify LDAP connectivity, credentials, search bases, filters, DNS resolution, and synchronization status. Successful LDAP integration helps maintain consistent user information and can support centralized identity management across enterprise collaboration systems.

Question 135

Which codec typically provides compressed voice with lower bandwidth requirements than G.711?

1. G.711
2. G.722
3. G.729
4. Opus

Correct Answer: 3

Explanation

G.729 is a compressed voice codec designed to use significantly less bandwidth than G.711. It can be useful in environments where WAN bandwidth is limited, although codec selection depends on endpoint capabilities, licensing considerations, network design, and interoperability requirements. G.711 generally provides high-quality narrowband audio with higher bandwidth usage, while G.722 is associated with wideband voice. Opus is used in many modern collaboration applications but is not interchangeable with every traditional CUCM codec configuration. Administrators should consider the complete call path when selecting codecs because both endpoints and intermediate systems must support the negotiated codec for successful media transmission.

Question 136

Which Cisco component can provide SIP connectivity between CUCM and an external SIP service provider?

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

Correct Answer: 1

Explanation

Cisco Unified Border Element, or CUBE, can provide SIP connectivity between CUCM and an external SIP service provider. It acts as a controlled border between the enterprise collaboration environment and an external SIP network. CUBE can provide functions such as SIP normalization, topology hiding, interoperability, codec handling, and security controls. TFTP provides configuration services, IM and Presence provides messaging and presence, and Unity Connection provides voicemail. When implementing SIP trunks through CUBE, administrators should verify dial peers, SIP profiles, codec configuration, routing, number manipulation, certificates where applicable, and firewall policies. Proper CUBE design improves interoperability and isolates the internal call-control environment.

Question 137

Which protocol can provide service discovery information through DNS SRV records?

1. RTP
2. SIP
3. DNS
4. DHCP

Correct Answer: 3

Explanation

DNS can provide service discovery information through SRV records. DNS SRV records allow applications to locate specific services by identifying the hostname and port associated with a service. Cisco collaboration deployments can use DNS SRV records for service discovery and other connection processes. RTP carries media, SIP provides signaling, and DHCP provides network configuration. Accurate DNS is especially important in distributed collaboration environments and Mobile and Remote Access deployments. When service discovery fails, administrators should verify SRV records, host records, DNS server reachability, and certificate names. Incorrect DNS information can prevent endpoints or collaboration applications from locating the correct services.

Question 138

Which CUCM feature controls the amount of bandwidth used between regions?

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

Correct Answer: 2

Explanation

Regions in CUCM can define bandwidth relationships between groups of devices. Administrators can configure region-to-region settings that influence codec selection and the amount of audio or video bandwidth permitted between regions. This is particularly useful for managing collaboration traffic across WAN links. Partitions control dial-plan visibility, route patterns match dialed digits, and device pools provide shared endpoint settings. If WAN utilization is unexpectedly high, administrators should inspect the regions assigned to the endpoints and the configured bandwidth relationships. Region configuration should be aligned with available network capacity and the organization’s desired voice and video quality requirements.

Question 139

Which protocol is commonly used to secure SIP signaling between supported collaboration systems?

1. RTP
2. DHCP
3. TLS
4. LDAP

Correct Answer: 3

Explanation

Transport Layer Security, or TLS, can be used to protect SIP signaling between supported collaboration systems. TLS encrypts signaling traffic and can provide authentication through digital certificates and trusted certificate authorities. RTP carries real-time media, DHCP provides network configuration, and LDAP provides directory services. Secure SIP communication requires compatible security profiles, valid certificates, correct hostnames, and synchronized system time. If a TLS connection fails, administrators should verify certificate validity, trust relationships, certificate names, expiration dates, and network connectivity. It is important to distinguish TLS from SRTP because TLS protects signaling while SRTP is used separately to protect real-time media.

Question 140

Which CUCM configuration is used to define the prioritized set of gateways or route groups for an outbound call?

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

Correct Answer: 1

Explanation

A Route List defines an ordered set of route groups that CUCM can use for outbound call routing. Each route group can contain one or more gateways, allowing administrators to create primary and alternate routing paths. Route patterns can point calls toward a route list after matching the dialed digits. Device pools provide shared endpoint settings, media resource groups organize media resources, and partitions organize dial-plan destinations. When troubleshooting outbound routing, administrators should follow the complete path from the dialed number through the route pattern, partition and Calling Search Space, route list, route group, and gateway. This makes it easier to identify incorrect routing or failed gateway selection.