Free Cisco 642-785 Exam Dumps Questions & Answers


Exam Code/Number:	642-785Join the discussion
Exam Name:	Maintaining Cisco Service Provider Quality of Service (MSPQS)
Certification:	Cisco
Free Question Number:	91
Publish Date:	Dec 13, 2025
# of views:	1724
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Page: 1 / 19
Total 91 questions

Question 1

Which statement about when you mix TCP and UDP traffic in the same class and overflow occurs is true?

A.Mixing TCP and UDP in the same class is not supported.
B.The overflow is not a problem, because both TCP and UDP packets get randomly dropped and traffic will back out.
C.TCP traffic is starved, because UDP never slows down when packets get dropped.
D.UDP traffic suffers more, because TCP guarantees delivery.

Question 2

Which tool is best suited to provide incident management or trouble ticketing?

A.Tivoli
B.Remedy
C.Intelliden
D.CiscoWorks
E.Voyence

Question 3

A customer reports that during peak hours, FTP performance is unacceptable. Currently, the service provider maps the customer FTP traffic into the class-default traffic class and FTP traffic is marked with MPLS EXP1. The class-default class traffic is configured with MPLS EXP based WRED and also with the bandwidth command. What could be causing the FTP performance issues with the customer?

A.The service provider is using LLQ on all the core links, but the FTP traffic is not is assigned to the priority queue.
B.The bandwidth command is causing the FTP issues. It is generally not recommended to use CBWFQ for the class-default traffic class.
C.The FTP-type bulk traffic should be mapped to MPLS EXP 5 instead of MPLS EXP 1. The improper marking of FTP packets is causing CBWFQ to assign lower priority for FTP packets within the class-default traffic class.
D.FTP packets are being more randomly dropped that the other TCP traffic within the class-default traffic class, because the WRED thresholds for MPLS EXP 3 marked packets were configured to improper values.

Question 4

Refer to the exhibit.

A service provider moved from a three-class service provider QoS model to a four-class service provider QoS model. A new class of service called CRITICAL-B was created to support traffic with a DSCP marking of AF31. A customer reports that the traffic in the CRITICAL-B class is having problems. What step should the service provider take to correct this issue?

A.The max-reserved-bandwidth command must be used to allocate more bandwidth than allowed by default.
B.The policy map should be updated to move the BULK class to the bottom of the policy.
C.The class map for CRITICAL-B should have a DSCP value of 28.
D.The CRITICAL-A class should change from match-all to match-any.

Question 5

Refer to the exhibit.

Which two statements about the SP-REALTIME traffic class are true? (Choose two.)

A.The priority configuration command is missing the maximum guaranteed bandwidth rate.
B.Traffic is queued using LLQ.
C.Traffic conforming to the police rate will be transmitted and all the markings on the packets will be cleared.
D.Traffic is policed to 35 percent of the interface bandwidth.
E.The police configuration command is missing the violate-action option.