CCNP Wireless IUWVN (642-741) Exam Overview

Implementing Cisco Unified Wireless Voice Networks

Exam Number:  642-741

Associated Certifications:  CCNP Wireless

Duration:  90 minutes (50-60 questions)

Available Languages:  English

642-741 IUWVN Exam Topics (Blueprint)

Exam Description

The 642-741 IUWVN Implementing Cisco Unified Wireless Voice Networks exam is the exam associated with the CCNP Wireless certification. This exam assesses a candidate’s capability to integrate VoWLAN services into the WLAN and be able to implement QoS, MPLS, and high bandwidth applications into the wireless network. Candidates can prepare for this exam by taking the IUWVN Implementing Cisco Unified Wireless Voice Networks course.

Exam Topics

The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes the guidelines below may change at any time without notice.

I.  Describe voice over wireless architecture
A.  Describe voice as it applies to the wireless network
  • Components (hardware, software)

  • Call setup and data flow overview
  • Standards
  • WMM
  • Codecs
  • SCCP and SIP
B.  Design wireless for voice
  • RSSI and  SNR
  • Cell overlap requirements
  • Cell separations
  • Traffic separation
  • Delay, jitter, and QoS
  • Verify voice readiness:
  • WCS voice readiness tool
II. Implement VoWLAN
A.  Configure wireless client devices
  • Device security considerations
B.  Configure the WLAN for VoWLAN
  • Best practice guidelines
  • Security configurations (PEAP, EAP-TLS, EAP-FAST)
  • CCKM/PKC, 802.11r
C.  Describe hardware/software requirements
D.  Configure infrastructure devices
E.  Troubleshoot VoWLAN implementation
  • Spectrum Expert
  • AirMagnet VoFi analyzer
  • Traffic stream Metrics (TSM)
III.Implement QoS for wireless applications
A.  Identify general considerations for wired QoS:
  • Configurations
  • DSCP/802.1p
  • Voice VLAN
B.  Describe Wireless QoS deployment schemes:
  • WMM
  • 802.11e
  • Mapping — wired to wireless
C.  Configure WCS/WLC for QoS:
  • CAC
  • QBSS
  • Queues
IV.Implement multicast over wireless
A.  Understand general multicast concepts:
  • PIM modes
  • CGMP
  • IGMP snooping
  • RP
B.  Describe implications for multicast in 802.11
  • Data rates
  • Unicast/multicast modes
  • Roaming
  • Mesh
  • Controllers multicast groups
C.  Configure multicast in a wireless network
  • Infrastructure multicast group
  • IGMP snooping on the controller
D.  Troubleshoot multicast in a wireless network
  • Packet captures
  • Show IPM route
  • Controller logs
  • Debugs
V.Prepare the wireless network for video or high-bandwidth applications
A.  Implement QoS for latency-sensitive applications
B.  Describe benefits of 802.11n for video
C.  Determine bandwidth requirements
D.  Understand interconnectivity for devices on the wired side (QoS):
  • WLC to wired network

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