350-801 Implementing Cisco Collaboration Core Technologies (CLCOR) Practice Questions
Prepare for 350-801 with more than an answer.
- Exam fee
- $400 USD
- Level
- Professional
- Valid for
- 3 years
- 1
A multinational corporation is redesigning its dial plan to support a centralized call processing model with local PSTN breakout. The architect decides to implement Globalized Call Routing with E.164 numbers. When configuring the ingress calling search space (CSS) on the gateways, which specific pattern type should be used to normalize incoming PSTN numbers to the E.164 format (+14085551234) before they reach the phone?
flowchart LR PSTN((PSTN)) -->|10 Digit ANI| GW[Voice Gateway] GW -->|Ingress CSS| CUCM[CUCM] CUCM -->|Normalization| PhoneShow answer details
Correct answer: D
In a Globalized Call Routing design, ingress PSTN numbers are typically normalized to the E.164 format using Translation Patterns applied at the gateway or trunk ingress point. This ensures a consistent numbering format within the system.
- 2
An administrator is troubleshooting a SIP trunk between Cisco Unified Communications Manager (CUCM) and a Cisco Unified Border Element (CUBE). Calls are failing, and the 'show ccsip messages' debug on the CUBE shows an 'HTTP 400 Bad Request' response from the provider immediately after the INVITE. The provider states that the SIP User-Agent header contains internal topology information that their security policy rejects. Which configuration on the CUBE will resolve this by modifying the header?
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Correct answer: B
SIP Profiles on IOS XE gateways allow administrators to manipulate SIP headers. By creating a sip-profile that modifies or obfuscates the User-Agent header and applying it to the outbound dial-peer towards the provider, the rejected topology information is removed.
- 3
A large enterprise is deploying Cisco Expressway-E for Mobile and Remote Access (MRA). The security team requires that the Expressway-E be deployed in the DMZ using a dual-NIC topology. Which statement correctly describes the routing requirements for this specific interface configuration?
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Correct answer: D
In a dual-NIC Expressway-E deployment, only one interface (typically the external one facing the internet) should have the default gateway configured. The internal interface connecting to the Core must use static routes to reach internal subnets to avoid routing loops or asymmetric routing issues.
- 4
During a SIP call setup between two clusters connected via a SIP trunk, the calling phone sends an INVITE with SDP offering G.711 and G.729. The destination phone only supports G.729. However, the SIP trunk is configured with a 'Media Termination Point Required' checkbox checked. What effect does this have on the codec negotiation?
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Correct answer: D
When 'MTP Required' is selected, CUCM inserts an MTP into the media path. Standard software MTPs (like those on Cisco routers) typically only support G.711. If the end-to-end negotiation requires G.729 and the allocated MTP only supports G.711, the call setup will fail or fall back to G.711 if possible. If G.729 is mandated by the region, the call fails.
- 5
A collaboration engineer is configuring Cisco Unity Connection to integrate with Cisco UCM via SIP. To ensure that voicemail ports are properly registered and calls route correctly, which two components must be configured on the Cisco UCM side? (Select TWO)
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Correct answer: B, E
A Route Pattern (or Hunt Pilot if using route groups) is essential to direct calls destined for the voicemail pilot number to the configured SIP Trunk.
A SIP Trunk Security Profile is required to define the transport protocol (TCP/UDP/TLS) and port (usually 5060) used for the SIP trunk connecting CUCM to Unity Connection.
- 6
Which two functionalities does Cisco Expressway provide in the Cisco Collaboration architecture? (Choose two.)
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Correct answer: A, D
Cisco's Expressway Administrator Guide lists its primary features as proven, highly secure firewall-traversal technology; connections for business-to-business, business-to-consumer and business-to-cloud-service-provider communication; and session-based access to collaboration services for remote workers with no separate VPN client (Mobile and Remote Access through the Expressway-C and Expressway-E traversal pair). So secure business-to-business communications and secure firewall traversal for remote devices are the two Expressway functions. MGCP gateways are controlled by and register with Unified Communications Manager, Survivable Remote Site Telephony is a Cisco IOS router feature that keeps branch phones working when the WAN fails, and customer interaction management belongs to the contact-center products, not to Expressway. Source: Cisco Expressway Administrator Guide (X14.2), Introduction.
Cisco's Expressway Administrator Guide lists its primary features as proven, highly secure firewall-traversal technology; connections for business-to-business, business-to-consumer and business-to-cloud-service-provider communication; and session-based access to collaboration services for remote workers with no separate VPN client (Mobile and Remote Access through the Expressway-C and Expressway-E traversal pair). So secure business-to-business communications and secure firewall traversal for remote devices are the two Expressway functions. MGCP gateways are controlled by and register with Unified Communications Manager, Survivable Remote Site Telephony is a Cisco IOS router feature that keeps branch phones working when the WAN fails, and customer interaction management belongs to the contact-center products, not to Expressway. Source: Cisco Expressway Administrator Guide (X14.2), Introduction.
- 7
An engineer must extend the corporate phone system to mobile users connecting through the internet with their own devices. One requirement is to keep that as simple as possible for end users. Which infrastructure element achieves these goals?
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Correct answer: A
- 8
A customer wants a video conference with five Cisco TelePresence IX5000 Series systems. Which media resource is necessary in the design to fully utilize the immersive functions?
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Correct answer: B
