CCIE CCIE Collaboration 2 — Questions and Answers
Question 1: What is the purpose of a Cisco Unity Connection hunt pilot in voicemail integration?
- Load balancing Cisco CUCM clusters
- Routing calls to available voicemail ports for message recording (Correct answer)
- Providing redundant call managers
- Distributing conference resources
Correct answer: Routing calls to available voicemail ports for message recording
Unity Connection hunt pilots distribute calls across voicemail ports, ensuring incoming voicemail calls are directed to an available port for message recording.
Question 2: In Cisco CUCM, what is a Calling Search Space (CSS)?
- A list of codecs in priority order
- An ordered list of partitions that defines which destinations a device can reach (Correct answer)
- A group of devices sharing the same configuration
- A bandwidth pool for call admission control
Correct answer: An ordered list of partitions that defines which destinations a device can reach
A CSS is an ordered list of partitions assigned to devices or lines, determining which route patterns and directory numbers the device can call.
Question 3: Which Cisco QoS marking is recommended for voice RTP media traffic in enterprise UC deployments?
- DSCP AF41 (34)
- DSCP EF (46) (Correct answer)
- DSCP CS3 (24)
- DSCP BE (0)
Correct answer: DSCP EF (46)
Voice RTP media is marked DSCP EF (Expedited Forwarding, decimal 46) to receive the lowest latency and jitter treatment in the QoS architecture.
Question 4: What does CAC (Call Admission Control) prevent in a Cisco UC deployment?
- Unauthorized user access to CUCM
- Over-subscription of WAN bandwidth by concurrent voice calls (Correct answer)
- Toll fraud via dial plan manipulation
- Codec mismatch between endpoints
Correct answer: Over-subscription of WAN bandwidth by concurrent voice calls
CAC limits the number of concurrent calls over a WAN link to prevent voice quality degradation due to insufficient bandwidth.
Question 5: In a Cisco Unified Communications cluster, what is the purpose of the TFTP service?
- Synchronizing call detail records
- Providing phone configuration files and firmware to IP phones (Correct answer)
- Routing calls between clusters
- Managing user credentials
Correct answer: Providing phone configuration files and firmware to IP phones
The TFTP service in CUCM delivers phone configuration XML files and firmware images to Cisco IP phones during registration and boot.
Question 6: Which Cisco platform provides presence and instant messaging services in a Cisco UC deployment?
- Cisco Unity Connection
- Cisco IM and Presence Service (IMPS) (Correct answer)
- Cisco Expressway
- Cisco Meeting Server
Correct answer: Cisco IM and Presence Service (IMPS)
Cisco IM and Presence Service provides XMPP-based instant messaging, presence status, and persistent chat services integrated with CUCM.
CCIE CCIE Collaboration 2
What is the purpose of a Cisco Unity Connection hunt pilot in voicemail integration?