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Q21. AutoQoS is used to implement VoIP in the enterprise, but the trust option is not configured on the interface. Which network management Cisco IOS capability classifies the voice traffic?
A. NetFlow
B. SNMP
C. IP SLAs
D. NBAR
Answer: D
Q22. Click the Exhibit button.
Refer to the exhibit. Which Layer 2 feature detects a link failure between the switch and router B that decreases OSPF reconvergence to approximately 50 milliseconds?
A. BFD
B. UDLD
C. RSTP
D. PVST+
Answer: A
Q23. Which four primary attributes define a WAN service? (Choose four.)
A. bandwidth
B. bursting capacity
C. memory
D. CPU
E. QoS classes and policies
F. latency
G. multicast support
Answer: A,B,E,G
Q24. Which option is the Cisco preferred, most versatile, and highest-performance way to deploy IPv6 in existing IPv4 environments?
A. dual stack
B. hybrid
C. service block
D. dual service
Answer: A
Q25. Which technology allows multiple instances of a routing table to coexist on the same router simultaneously?
A. VRF
B. Cisco virtual router
C. instanced virtual router
D. IS-IS
Answer: A
Q26. DRAG DROP
Answer:
Q27. A network designer wants to improve security at the edge of the network and allow routing protocols to communicate without any additional configuration. What firewall mode meets the design requirements?
A. routed
B. zoned
C. context
D. transparent
Answer: D
Q28. In what situation must spanning-tree be implemented?
A. when first hop redundancy protocol exists with redundant Layer 2 links between distribution switches
B. when a VLAN spans access layer switches to support business applications
C. when trunks need to extend multiple VLANs across access switches
D. when it is necessary to speed up network convergence in case of link failure
Answer: A
Q29. Which option describes the effect of using softphones instead of VoIP handsets on QoS implementation for the voice traffic?
A. It provides a Layer 2 CoS marking in the frames that can be used for QoS implementation.
B. Using softphones means that 802.1Q tagging must be configured between the PC and the switch.
C. The voice traffic of softphones is mixed with data traffic of PC on the access VLAN.
D. By using softphones, the implementation of a QoS depends only on trusting DSCP markings set by the PC.
Answer: C
Q30. Which of these statements is correct regarding Stateful Switchover and Cisco Nonstop Forwarding?
A. Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.
B. Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.
C. Distribution switches are single points of failure causing outages for the end devices.
D. Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one second.
E. NSF and SSO with redundant supervisors have the most impact on outages at the access layer.
Answer: E
