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Cisco 642-742 Exam Syllabus Topics:

Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:

1. What three changes occur when you replace a legacy 802.11a/b/g Cisco AP with an 802.11a/b/g/n Cisco 3500 Series AP? (Choose three.)

A) increased data rate at increased distance
B) increased data rate at reduced distance
C) increased data rate at same distance
D) benefits in 5 GHz only
E) benefits in 2.4 GHz only
F) benefits in both 2.4 and 5 GHz

2. A WLC v7.0 is configured for multicast with WLC-to-AP multicast mode using IP address 239.10.10.10, IGMP snooping enabled, and all other parameters set to default. Which two statements describe how a wired ingress broadcast and multicast frame are handled? (Choose two.)

A) WLC will drop the multicast frame.
B) WLC will forward the multicast frame to all APs and then to only WLANs with active clients.
C) WLC will forward the multicast frame to all APs and then to all WLANs.
D) WLC will forward a multicast frame to only APs and their respective WLANs with active clients.
E) WLC will forward the broadcast frame to all APs and then to all WLANs.
F) WLC will forward a broadcast frame to only APs and their respective WLANs with active clients.
G) WLC will forward the broadcast frame to all APs and then to only WLANs with active clients.
H) WLC will drop the broadcast frame.

3. A downstream packet containing a DSCP value arrives at the WLC Ethernet interface from the wired source network. The WLC is configured for QoS WLAN 802.1p mapping. How does the WLC treat the CAPWAP QoS marking when leaving the controller interface for the respective AP and final wireless client destination?

A) No outer CAPWAP or inner QoS tagging is applied.
B) No outer CAPWAP QoS tag is applied, but the original DSCP is maintained inside CAPWAP.
C) The outer CAPWAP DHCP is marked and capped without any inner DSCP value.
D) The outer CAPWAP CoS is marked and capped while the inner DSCP maintains the original marking.

4. What address do PIM routers listen to in order to automatically discover the best RP for each multicast group?

A) 224.0.0.13
B) 224.0.1.39
C) 224.0.0.14
D) 224.0.1.40

5. A Cisco WLC v7.0 is configured with the default setting for wired and wireless QoS. When a wireless client sends a voice packet to the AP, how does the AP mark the outer CAPWAP header when the packet is sent to the Cisco WLC v7.0?

A) The AP uses the wireless priority value to create a matching DSCP value in the CAPWAP header.
B) The AP uses the wireless priority value to create a matching 802.1p value in the CAPWAP header.
C) The AP does not match the value to the CAPWAP header, which results in best effort.
D) The AP uses the wireless priority value to create both a matching 802.1p and DSCP value in the CAPWAP header.

Solutions: