EMT Practice Test

1. Question Content...

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Question1: Which of the following BEST describes a SAP when regarding QoS?

Question2: Which of the following statements regarding buffer pool allocation are FALSE? (Choose two)

Question3: Click the exhibit button below. Given the slope-policy (below), which of the following statements are TRUE? (Choose two)

Question4: How does an IOM3 improve the queue usage over an IOM2 in an Alcatel-Lucent 7750 SR? (Choose two)

Question5: Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called "high"? (Choose two)

Question6: Which of the following statements regarding DSCP bits are TRUE? (Choose three)

Question7: Which of the following are entities of the Alcatel-Lucent 7750 SR on which you can NOT apply a network- queue policy? (Choose three)

Question8: 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 the current queue depth is 3KB, what will happen to an out-of-profile packet arriving at an egress queue?

Question9: Which of the following statements regarding egress FC and profile over-ride are TRUE? (Choose two)

Question10: Click the exhibit button below. A network operator has configured the SAP-ingress policy below. Ping traffic is expected in queue 3. However, the network operator notices that all traffic is placed in queue 1. What is the most probable reason for this?

Question11: Which of the following statements BEST describes where shaping mechanisms should be applied?

Question12: 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 network egress? (Choose two)

Question13: 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)

Question14: Which of the following are possible criteria for classifying packets at the SAP-ingress? (Choose three)

Question15: On the Alcatel-Lucent 7750 SR, which of the following QoS-related policies can be configured on a SAP?
(Choose three)

Question16: When deploying an Alcatel-Lucent MPLS network with QoS, how are the EXP bits set?

Question17: On the Alcatel-Lucent 7750 SR, what is a slope policy used for?

Question18: Click the exhibit button below. Given the output of the #show pools 1/2/2 network-egress command on a GigE port, what can the service provider deduce? (Choose two)

Question19: If a packet is marked on a SAP-ingress, it will be remarked at the first network egress point (if remarking is enabled in the network egress policy).

Question20: Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)

Question21: Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are FALSE? (Choose three)

Question22: At which points can traffic be marked or remarked on the Alcatel-Lucent 7750? (Choose two)

Question23: It is necessary for Tier 1 schedulers to obtain bandwidth from a higher tier scheduler.

Question24: The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.

Question25: Click the exhibit button below. Given the scheduler-policy (below), which of the following can be done to guarantee that the best-effort traffic receives its configured CIR value?

Question26: 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 10Mbps?

Question27: On an Alcatel-Lucent IOM 3, how is buffer memory allocated per forwarding complex?

Question28: A queue is configured with the following attributes:
MBS = 10KB
CBS = 5KB
High-Priority-Only = 30%
Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current queue depth is 8KB, what will happen to an in-profile packet arriving in the queue?

Question29: Which of the following statements is considered best practice when changing a network policy that has been associated with an interface?

Question30: Traffic assigned to forwarding classes is placed into queues, while the contents of the queues are serviced in a controlled manner using____________.

Question31: A default network policy is applied to all router interfaces associated with network ports.

Question32: Which of the following are categories of forwarding classes on the Alcatel-Lucent 7750 SR? (Choose two)

Question33: Click the exhibit button below. Each router is interconnected by a single GigE link, as shown in the diagram below.

Note: The arrows show the direction of traffic flow.
Traffic from Customer A and Customer B that is classified to the same forwarding class is queued together at the ingress of Router B.

Question34: Which of the following statements regarding the default scheduler in the Alcatel-Lucent 7750 SR are TRUE? (Choose two)

Question35: Which of the following are trusted boundaries, by default? (Choose two)

Question36: Which of the following statements regarding policing and shaping on the Alcatel-Lucent 7750 SR are TRUE? (Choose two)

Question37: 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 arrives on a dotlQ encapsulated network port 1/1/4:1 on P1 with the following characteristics:
EXP value = 6
DSCP value = cs1
Dot1pvalue = 3

Question38: What is an SLA? (Choose two)

Question39: 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 scheduling behavior of the Alcatel-Lucent 7750 SR, in which order will packets be serviced?

Question40: Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are TRUE?
(Choose three)

Question41: 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 policy, to which forwarding class is the traffic matched?

Question42: Which of the following statements describe the primary objectives of the policing of traffic flows on the Alcatel-Lucent 7750 SR? (Choose two)

Question43: 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 the EXP value of packets arriving at router PE 2?

Note: Only relevant portions of the network policy are shown.

Question44: Which of the following statements BEST describes an MBS parameter?

Question45: Which of the following are possible criteria for classifying packets at the network port ingress on the Alcatel-Lucent 7750 SR? (Choose three)