642-785 무료 덤프문제 온라인 액세스

What can be used to provide read-only access to QoS configuration information and statistics from a network management station?

• A.NBAR
• B.SYSLOG
• C.IP SLA
• D.NetFlow
• E.CISCO-CLASS-BASED-QOS-MIB

Which Cisco IOS feature is used to enable the following class map configuration?
class-map match-all test-cm
match protocol gnutella file-transfer "*"

• A.NBAR
• B.CAR
• C.Flexible Packets Matching
• D.NetFlow
• E.CBWFQ

What are three fundamental QoS mechanisms? (Choose three.)

• A.marking
• B.congestion handling
• C.policing
• D.congestion avoidance
• E.undersubscription

Refer to the exhibit.

Your MPLS network is using RFC 3270 Uniform mode. Your customer reports that when a Microsoft NetMeeting call is placed between the workstations, the user at 172.16.1.2 experiences acceptable audio quality but the user at 172.16.2.2 experiences poor audio quality. What course of action should you take?

• A.Have the customer set the correct marking of audio packets at the 172.16.1.2 device.
• B.Use a policy map at the ingress to the PE2 router to remark packets from 172.16.2.2.
• C.Use a policy map at the ingress to the PE1 router to remark packets from 172.16.1.2.
• D.Have the customer set the correct marking of audio packets at the 172.16.2.2 device.
• E.Change your policy to not remark audio packets within your network.

An MPLS VPN customer with managed CE services recently made some changes to their call manager configurations. Now the customer reports that their VoIP traffic voice quality is very poor. What could be a cause of the problem?

• A.RTP header compression is used for the VoIP traffic class.
• B.The VoIP traffic class is not being policed at the CE router egress.
• C.The VoIP traffic is being marked as DSCP EF.
• D.The traffic shaping rate for the VoIP traffic class is too low.
• E.The customer changed the codec used for voice compression from G.729 to G.711.