Question 1

Which of the following about scheduling is TRUE?

Accepted Answer

A)  HQoS schedulers cannot be children of an egress port-scheduler. 
B)  HQoS schedulers provide a dynamic method of allocating scheduling resources to queues. 
C)  HQoS scheduler policies can be applied to an MDA to schedule network ingress traffic. 
D)  A scheduler policy applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service. 
A)  HQoS schedulers cannot be children of an egress port-scheduler. 
B)  HQoS schedulers provide a dynamic method of allocating scheduling resources to queues. 
C)  HQoS scheduler policies can be applied to an MDA to schedule network ingress traffic. 
D)  A scheduler policy applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service.

Question 2

Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)

Accepted Answer

A)  In order to mark Layer 2 traffic, sgt-qos will set various ToS bits. 
B)  DSCP bits can be set per application, per routing instance. 
C)  The DSCP marking stays nc1 for all applications. Only the internal FC is manipulated across different applications. 
D)  In order to mark Layer 2 self-generated traffic, network interfaces must be set to dot1Q. 
E)  The internal forwarding class for self-generated traffic is set once and applied to the base router and all VPRN instances. 
A)  In order to mark Layer 2 traffic, sgt-qos will set various ToS bits. 
B)  DSCP bits can be set per application, per routing instance. 
C)  The DSCP marking stays nc1 for all applications. Only the internal FC is manipulated across different applications. 
D)  In order to mark Layer 2 self-generated traffic, network interfaces must be set to dot1Q. 
E)  The internal forwarding class for self-generated traffic is set once and applied to the base router and all VPRN instances.

Question 3

What can be learned from the output of the command "show pools 1/2/2 network-egress" on the GigE port?

Accepted Answer

A)  All incoming packets belonging to forwarding class "l2" are stored in the reserved buffer space. 
B)  All incoming packets belonging to forwarding class "af" are stored in the reserved buffer space. 
C)  All incoming packets belonging to forwarding class "l1" are stored in the reserved buffer space. 
D)  In-profile packets in the shared buffer space are being dropped. 
E)  New incoming packets belonging to forwarding class "ef" will find that their queue is empty. 
A)  All incoming packets belonging to forwarding class "l2" are stored in the reserved buffer space. 
B)  All incoming packets belonging to forwarding class "af" are stored in the reserved buffer space. 
C)  All incoming packets belonging to forwarding class "l1" are stored in the reserved buffer space. 
D)  In-profile packets in the shared buffer space are being dropped. 
E)  New incoming packets belonging to forwarding class "ef" will find that their queue is empty.

Question 4

To manage the shared buffer space at network ports, slope policies are applied on _________ for the ingress direction, and on ________ or _________ for the egress direction.

Accepted Answer

A)  Interfaces, ports, SAPs 
B)  Ports, ports, MDAs 
C)  MDAs, MDAs, ports 
D)  Interfaces, interfaces. MDAs 
E)  MDAs, ports, interfaces 
A)  Interfaces, ports, SAPs 
B)  Ports, ports, MDAs 
C)  MDAs, MDAs, ports 
D)  Interfaces, interfaces. MDAs 
E)  MDAs, ports, interfaces

Question 5

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.

Accepted Answer

A)  2 
B)  3 
C)  5 
D)  6 
E)  None of the above. 
A)  2 
B)  3 
C)  5 
D)  6 
E)  None of the above.

Question 6

A queue-group template can only contain policers (no queues) when applied under which conditions?

Accepted Answer

A)  When applied at the FP (Forwarding Path) level for access egress 
B)  When applied at an access port for ingress or egress 
C)  When applied at the FP (Forwarding Pass) level for access ingress 
D)  When applied at the port level for network egress 
A)  When applied at the FP (Forwarding Path) level for access egress 
B)  When applied at an access port for ingress or egress 
C)  When applied at the FP (Forwarding Pass) level for access ingress 
D)  When applied at the port level for network egress

Question 7

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

Accepted Answer

A)  SAP-ingress only 
B)  SAP-egress only 
C)  SAP-ingress and SAP-egress 
D)  Network ingress 
E)  Network egress 
A)  SAP-ingress only 
B)  SAP-egress only 
C)  SAP-ingress and SAP-egress 
D)  Network ingress 
E)  Network egress

Question 8

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

Accepted Answer

A)  Ensure that traffic flows conform to their traffic profile. 
B)  Log violations of metered traffic flows exceeding the CIR value set on the entity across which the traffic is moving. 
C)  Provide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows. 
D)  Minimize packet loss and reduce end to end latency. 
E)  Ensure that variable latencies do not cluster short bursts of originally conforming packets and render them nonconforming. 
A)  Ensure that traffic flows conform to their traffic profile. 
B)  Log violations of metered traffic flows exceeding the CIR value set on the entity across which the traffic is moving. 
C)  Provide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows. 
D)  Minimize packet loss and reduce end to end latency. 
E)  Ensure that variable latencies do not cluster short bursts of originally conforming packets and render them nonconforming.

Question 9

Which following statements about the four-step QoS process (classification, queuing, scheduling, and marking/remarking) executed for every packet entering a Nokia 7750 SR is TRUE?

Accepted Answer

A)  The process happens only before the packet goes through the switching fabric. 
B)  The process happens only before the packet goes onto the egress port. 
C)  Marking/remarking the packets is for future classification. 
D)  Marking/remarking the packets will occur right after classification of the packet. 
A)  The process happens only before the packet goes through the switching fabric. 
B)  The process happens only before the packet goes onto the egress port. 
C)  Marking/remarking the packets is for future classification. 
D)  Marking/remarking the packets will occur right after classification of the packet.

Question 10

Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?

Accepted Answer

A)  High-1 
B)  Assured 
C)  Best Effort 
D)  Expedited 
A)  High-1 
B)  Assured 
C)  Best Effort 
D)  Expedited

Question 11

Packets arrive at the VPRN SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the dot1p value of packets egressing routerPE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

Accepted Answer

A)  2 
B)  3 
C)  5 
D)  6 
A)  2 
B)  3 
C)  5 
D)  6

Question 12

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

Accepted Answer

A)  The IOM3 adds more memory to both forwarding complexes which increases the total number of queues available. 
B)  The IOM3 only contains a single forwarding complex which reduces the number of queues used. 
C)  The IOM3 allows multiple forwarding classes to be assigned to a single queue. 
D)  The IOM3 allows queues to be dynamically allocated between ingress and egress. 
E)  The IOM3 has a larger CPU capable of tracking active hardware queue utilization and adjusting memory allocation accordingly. 
A)  The IOM3 adds more memory to both forwarding complexes which increases the total number of queues available. 
B)  The IOM3 only contains a single forwarding complex which reduces the number of queues used. 
C)  The IOM3 allows multiple forwarding classes to be assigned to a single queue. 
D)  The IOM3 allows queues to be dynamically allocated between ingress and egress. 
E)  The IOM3 has a larger CPU capable of tracking active hardware queue utilization and adjusting memory allocation accordingly.

Question 13

On the Nokia 7750 SR, how many queues per FC are available for multipoint traffic within a VPLS on service ingress?

Accepted Answer

A)  64 
B)  8 
C)  3 
D)  16 
E)  1 
A)  64 
B)  8 
C)  3 
D)  16 
E)  1

Question 14

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

Accepted Answer

A)  A point in the network where EXP bits can be mapped to one of eight predefined FCs, each one with its own queue. 
B)  A logical point in a service tunnel where all of customer traffic is aggregated. 
C)  A point at which the initial classification of customer traffic occurs. 
D)  A point in the network where QoS parameters are discarded in favor of lower-level hardware queuing functions, such as LLI (Link Layer Interleave). 
E)  A point in the network where traffic flows from multiple different services are queued together, based on forwarding class. 
A)  A point in the network where EXP bits can be mapped to one of eight predefined FCs, each one with its own queue. 
B)  A logical point in a service tunnel where all of customer traffic is aggregated. 
C)  A point at which the initial classification of customer traffic occurs. 
D)  A point in the network where QoS parameters are discarded in favor of lower-level hardware queuing functions, such as LLI (Link Layer Interleave). 
E)  A point in the network where traffic flows from multiple different services are queued together, based on forwarding class.

Question 15

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

Accepted Answer

A)  On the network egress port. 
B)  On the SDP. 
C)  On the access ingress port. 
D)  On the egress MDA. 
E)  On the SAP.
F) On the ingress MDA. 
A)  On the network egress port. 
B)  On the SDP. 
C)  On the access ingress port. 
D)  On the egress MDA. 
E)  On the SAP.
F) On the ingress MDA.

Question 16

In which policies, on the Nokia 7750 SR. is classification performed? (Choose three)

Accepted Answer

A)  SAP-ingress policy 
B)  SAP-egress policy 
C)  IP-criteria policy 
D)  Network-queue policy 
E)  Slope policy
F) Network policy 
A)  SAP-ingress policy 
B)  SAP-egress policy 
C)  IP-criteria policy 
D)  Network-queue policy 
E)  Slope policy
F) Network policy

Question 17

In a Nokia 7750 SR, which of the following is a class type that is intended for non-real-time customer traffic that requires some committed bandwidth?

Accepted Answer

A)  Gold 
B)  Assured 
C)  High Priority 
D)  Best Effort 
A)  Gold 
B)  Assured 
C)  High Priority 
D)  Best Effort

Question 18

Packets arrive at the VPLS SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

Accepted Answer

A)  af11 
B)  af21 
C)  af23 
D)  af31 
A)  af11 
B)  af21 
C)  af23 
D)  af31

Question 19

Which of the following statements about scheduling on the Nokia 7750 SR is FALSE?

Accepted Answer

A)  When using priority-mode queues, traffic marked as low-priority on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress. 
B)  When using priority-mode queues, traffic marked as high-priority on ingress and scheduled in the above-CIR loop will be considered as out-of-profile at egress. 
C)  When using profile-mode queues, traffic marked as low-priority on ingress and scheduled in the above-CIR loop will be considered as out-of-profile at egress. 
D)  When using profile-mode queues, traffic marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress. 
A)  When using priority-mode queues, traffic marked as low-priority on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress. 
B)  When using priority-mode queues, traffic marked as high-priority on ingress and scheduled in the above-CIR loop will be considered as out-of-profile at egress. 
C)  When using profile-mode queues, traffic marked as low-priority on ingress and scheduled in the above-CIR loop will be considered as out-of-profile at egress. 
D)  When using profile-mode queues, traffic marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress.

Question 20

Which of the following statements about behavior aggregate and multi-field classification in a Nokia 7750 SR is TRUE?

Accepted Answer

A)  Multi-field classification can use both MAC criteria and IP criteria in the same SAP-ingress QoS policy. 
B)  Behavior aggregate classification can use both lsp-exp and dscp in the same SAP-ingress QoS policy. 
C)  Multi-field classification cannot use both IP criteria and IPv6 criteria in the same SAP-ingress QoS policy. 
D)  Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy. 
A)  Multi-field classification can use both MAC criteria and IP criteria in the same SAP-ingress QoS policy. 
B)  Behavior aggregate classification can use both lsp-exp and dscp in the same SAP-ingress QoS policy. 
C)  Multi-field classification cannot use both IP criteria and IPv6 criteria in the same SAP-ingress QoS policy. 
D)  Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy.

Which of the following about scheduling is TRUE?

Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)

What can be learned from the output of the command "show pools 1/2/2 network-egress" on the GigE port?

To manage the shared buffer space at network ports, slope policies are applied on _ for the ingress direction, and on or _ for the egress direction.

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.

A queue-group template can only contain policers (no queues) when applied under which conditions?

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

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

Which following statements about the four-step QoS process (classification, queuing, scheduling, and marking/remarking) executed for every packet entering a Nokia 7750 SR is TRUE?

Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?

Packets arrive at the VPRN SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the dot1p value of packets egressing routerPE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

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

On the Nokia 7750 SR, how many queues per FC are available for multipoint traffic within a VPLS on service ingress?

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

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

In which policies, on the Nokia 7750 SR. is classification performed? (Choose three)

In a Nokia 7750 SR, which of the following is a class type that is intended for non-real-time customer traffic that requires some committed bandwidth?

Packets arrive at the VPLS SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

Which of the following statements about scheduling on the Nokia 7750 SR is FALSE?

Which of the following statements about behavior aggregate and multi-field classification in a Nokia 7750 SR is TRUE?

Nokia Border Gateway Protocol

Nokia Multiprotocol Label Switching

Nokia Services Architecture

Nokia Virtual Private LAN Services

Nokia Virtual Private Routed Networks

Nokia Quality of Service

Nokia Multicast Protocols

Filters

Exam 1: Nokia Scalable IP Networks

Which of the following about scheduling is TRUE?

Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)

What can be learned from the output of the command "show pools 1/2/2 network-egress" on the GigE port?

To manage the shared buffer space at network ports, slope policies are applied on _________ for the ingress direction, and on ________ or _________ for the egress direction.

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.

A queue-group template can only contain policers (no queues) when applied under which conditions?

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

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

Which following statements about the four-step QoS process (classification, queuing, scheduling, and marking/remarking) executed for every packet entering a Nokia 7750 SR is TRUE?

Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?

Packets arrive at the VPRN SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the dot1p value of packets egressing routerPE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

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

On the Nokia 7750 SR, how many queues per FC are available for multipoint traffic within a VPLS on service ingress?

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

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

In which policies, on the Nokia 7750 SR. is classification performed? (Choose three)

In a Nokia 7750 SR, which of the following is a class type that is intended for non-real-time customer traffic that requires some committed bandwidth?

Packets arrive at the VPLS SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

Which of the following statements about scheduling on the Nokia 7750 SR is FALSE?

Which of the following statements about behavior aggregate and multi-field classification in a Nokia 7750 SR is TRUE?

Nokia Border Gateway Protocol

Nokia Multiprotocol Label Switching

Nokia Services Architecture

Nokia Virtual Private LAN Services

Nokia Virtual Private Routed Networks

Nokia Quality of Service

Nokia Multicast Protocols

Filters

To manage the shared buffer space at network ports, slope policies are applied on _ for the ingress direction, and on or _ for the egress direction.