4A0-107 Exam Questions
100 real 4A0-107 exam questions with expert-verified answers and explanations. Page 1 of 2.
- Question #1Policing and Shaping
Which of the following statements BEST describes where shaping mechanisms should be applied?
Traffic shapingLink speed mismatchTraffic aggregationCongestion points - Question #2Ingress and Egress QoS
Click the exhibit button below. Traffic arriving at router PE 1 is marked with a dot1p value of 4. Given the network policies applied on the routers in the diagram below, what is t...
dot1p to EXP mappingQoS marking transformationIngress policy applicationMPLS traffic marking - Question #3Ingress and Egress QoS
When deploying an Alcatel-Lucent MPLS network with QoS, how are the EXP bits set?
MPLS-EXPDSCP-MappingQoS-TranslationLabel-Marking - Question #4QoS Fundamentals
The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.
IP ToS fieldPrecedence bitsIPv4 headerQoS basics - Question #5Ingress and Egress QoS
Which of the following are possible criteria for classifying packets at the SAP-ingress? (Choose three)
SAP-ingress classificationQoS packet fieldsLayer 2/3 headersingress processing - Question #6Ingress and Egress QoS
In which policies, on the Alcatel-Lucent 7750 SR. is classification performed? (Choose three)
classificationSAP-ingress policyQoS policy hierarchytraffic identification - Question #7Policing and Shaping
Which of the following statements regarding policing and shaping on the Alcatel-Lucent 7750 SR are TRUE? (Choose two)
PolicingShapingCIR/PIRSoft-policing - Question #8Ingress and Egress QoS
How many queues are available for use on service egress within a VPLS service?
VPLS egress queuesQueue allocationTraffic queuingService configuration - Question #9QoS Fundamentals
Without_______, a customer's high priority traffic can be dropped before its low priority traffic.
Traffic PrioritizationQoS FundamentalsPriority HandlingDifferentiated Services - Question #10Ingress and Egress QoS
On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)
network-queue policies7750 SR architectureQoS application pointsingress/egress paths - Question #11QoS Fundamentals
Which of the following are examples of metrics for QoS?
QoS metricsdelay/latencyjitterpacket loss - Question #12Scheduling
Click the exhibit button below. A network operator has configured a network-queue policy to map forwarding classes to queues, as shown in the exhibit below. Based on the default sc...
Queue SchedulingQoS PrioritiesForwarding ClassesProfile-based Queueing - Question #13Ingress and Egress QoS
A physical port has three associated buffer pools. Which of the following buffer pool combinations is associated to a physical port?
buffer pool architectureport ingress/egressaccess vs network buffersQoS fundamentals - Question #14Scheduling
If traffic is destined to queue 5, which has a high-priority-only value of 0 in the network- queue policy, all out-of-profile packets will be dropped.
high-priority-only parameterqueue drop behaviorout-of-profile packetsqueue policies - Question #15Ingress and Egress QoS
On an Alcatel-Lucent IOM 3, how is buffer memory allocated per forwarding complex?
buffer allocationforwarding complexingress/egress queuingIOM 3 hardware - Question #16Ingress and Egress QoS
Which of the following statements are TRUE regarding the building of a QoS-enabled network? (Choose two)
QoS ClassificationPacket Marking DefaultsLocal Policy ApplicationIngress/Egress Processing - Question #17Scheduling
When using an egress port scheduler, on which scheduling loop are orphaned queues serviced?
egress scheduling loopsorphaned queuesPIR servicingscheduling hierarchy - Question #18Scheduling
Which of the following statements regarding scheduling on the Alcatel-Lucent 7750 SR is TRUE? (Choose two)
profile-mode queuesPIR/CIR ratesin-profile trafficegress scheduling - Question #19Scheduling
Which of the following statements regarding the default scheduler in the Alcatel-Lucent 7750 SR are TRUE? (Choose two)
scheduling-algorithmspriority-queuesforwarding-classesCIR-provisioning - Question #20Ingress and Egress QoS
Which of the following are NOT ingress matching criteria for a network policy? (Choose two)
ingress classificationQoS matching criteriaDSCP/CoS/EXPnetwork policy - Question #21QoS Fundamentals
Which of the following fields can be marked or remarked for frames belonging to a Layer 2 service?
Layer 2 QoS markingDot1p priorityQoS marking fieldsL2 vs L3 differentiation - Question #22Scheduling
In which of the following scenarios is the egress port scheduler useful? (Choose two)
Egress SchedulingTraffic PrioritizationService QueuingQoS Management - Question #23Ingress and Egress QoS
Which of the following statements are TRUE regarding the remarking of packets arriving on the network interface whose ToS-marking-state is set to trusted and remarking enabled on n...
egress-remarkingdscp-markingservice-packet-handlingtrusted-marking-state - Question #24QoS Fundamentals
Which of the following statements is considered best practice when changing a network policy that has been associated with an interface?
policy-managementinterface-configurationconfiguration-best-practicespolicy-application - Question #25Scheduling
It is necessary for Tier 1 schedulers to obtain bandwidth from a higher tier scheduler.
Scheduler HierarchyTier 1 SchedulerBandwidth AllocationQoS Architecture - Question #26Scheduling
Which of the following parameters are used in a hierarchical scheduler-policy to specify the priority of the child scheduler/queue for allocating bandwidth beyond its committed rat...
Hierarchical SchedulingPriority/Weight ParametersBandwidth AllocationScheduler Hierarchy - Question #27Ingress and Egress QoS
On the Alcatel-Lucent 7750 SR, what is a slope policy used for?
buffer admission controlslope policiesQoS bufferingTCP traffic management - Question #28Policing and Shaping
Click the exhibit button below. Given the slope-policy (below), which of the following statements are TRUE? (Choose two)
Slope-PolicyDiscard ProbabilityTraffic ClassificationBuffer Utilization - Question #29QoS Fundamentals
Which of the following statements describe the operation of WRED on the Alcatel-Lucent 7750 SR? (Choose three)
WREDShared Buffer PoolCongestion ManagementBuffer Utilization - Question #30QoS Fundamentals
Which of the following are categories of forwarding classes on the Alcatel-Lucent 7750 SR? (Choose two)
Forwarding ClassesQoS ClassificationReal-time TrafficPriority Levels - Question #31Scheduling
Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called "high"? (Choose two)
Scheduler HierarchyParent-Child RelationshipsScheduler PolicyQoS Configuration - Question #32QoS Fundamentals
Which of the following are characteristics of 802.1p? (Choose two)
802.1pQoS Priority MarkingVLAN TaggingCoS Fields - Question #33Scheduling
Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)
QoS PoliciesDynamic Rate AllocationQueue-Based SchedulingPolicy Combination - Question #34Ingress and Egress QoS
A queue is configured with the following attributes: MBS = 10KB CBS = 5KB High-Priority-Only = 20% Assume that there is no CBS overbooking and that the slope-policy is disabled. If...
buffer-managementout-of-profile-trafficegress-qoscbs-mbs - Question #35Ingress and Egress QoS
Click the exhibit button below. All interfaces are using their default trust states and MPLS is used as the transport tunnel. The SAP-ingress, SAP-egress, and network QoS policies...
SAP Policy MappingDSCP RemarkingCoS/Dot1p TaggingQoS Policy Interaction - Question #36Policing and Shaping
Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.
policingshapingtraffic bufferingrate limiting - Question #37Ingress and Egress QoS
Click the exhibit button below. Based on the configuration of the network policy (below), what will be the forwarding class associated with a MPLS encapsulated customer packet that...
MPLS EXP mappingQoS classificationForwarding classesNetwork policy - Question #38Ingress and Egress QoS
Click the exhibit button below. At router PE1, customer packets are arriving tagged with a dotlp value of 6 and marked with a DSCP value of EF. Based on the configuration shown bel...
VPLS QoSDSCP preservationEXP mappingMPLS marking - Question #39Ingress and Egress QoS
On the Alcatel-Lucent 7750 SR, which of the following QoS-related policies can be configured on a SAP? (Choose three)
SAP policiesIngress/Egress QoSScheduler-policyQoS configuration - Question #40QoS Fundamentals
A service provider is using GRE for his transport tunnel on the Alcatel-Lucent 7750 SR. How can traffic be marked as it traverses the service provider's network? (Choose two)
Traffic MarkingQoS MechanismsGRE TunnelsLayer 2/3 Marking - Question #41Ingress and Egress QoS
Click the exhibit button below. A partial SAP-ingress policy configuration is shown below. A UDP video stream is sent to a PC with IP address 192.168.1.100. Given the SAP-ingress p...
SAP-ingress policyforwarding class matchingtraffic classificationEF marking - Question #42Scheduling
Click the exhibit button below. Given the scheduler-policy (below), how much bandwidth can the best-effort traffic receive (PIR and CIR) when the ingress rate of each queue is 10Mb...
scheduler-policyPIR/CIR allocationbest-effort trafficbandwidth distribution - Question #43Policing and Shaping
Which of the following QoS functions does the slope-policy perform?
slope-policycongestion-managementQoS-functionstraffic-control - Question #44Ingress and Egress QoS
Click the exhibit button below. Based on the configuration shown below, name the forwarding class to be associated with a TCP packet encapsulated inside an Ethernet frame that arri...
Ingress ClassificationForwarding Class MappingDSCP/Dot1p MarkingQoS Policy - Question #45QoS Fundamentals
Which of the following can be used as classifiers of customer traffic? (Choose three)
Traffic ClassificationDSCP802.1pPort-based Classification - Question #46Policing and Shaping
Which of the following rate-limiting approaches are used on the Alcatel-Lucent 7750 SR? (Choose two)
soft shaping7750 SRrate-limitingnetwork interfaces - Question #47Ingress and Egress QoS
Which of the following statements regarding buffer pool allocation are FALSE? (Choose two)
Buffer Pool AllocationNetwork vs SAP PortsIngress/Egress BufferingMDA Resources - Question #48QoS Fundamentals
Individual application streams are considered microflows, whereas __________ are considered macroflows.
microflowsmacroflowsforwarding classestraffic classification - Question #49Scheduling
Which of the following statements are TRUE? (Choose two)
Scheduling AlgorithmsLatency ComponentsJitterBuffer Management - Question #50Ingress and Egress QoS
On the Alcatel-Lucent 7750 SR, what is the maximum number of queues that a single SAP- ingress policy can support in a VPLS?
VPLSSAP Ingress PolicyQueue Management7750 SR