Question 1

Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)

Accepted Answer

A)  The slope-policy 
B)  The SAP-ingress policy 
C)  The network-queue policy 
D)  The scheduler-policy 
E)  The network-policy
F) The WRED-policy
G) The arbitrator-policy 
A)  The slope-policy 
B)  The SAP-ingress policy 
C)  The network-queue policy 
D)  The scheduler-policy 
E)  The network-policy
F) The WRED-policy
G) The arbitrator-policy

Question 2

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 have been configured as shown below. Assume that the default network-queue policy is used on each router. At router PE 1, customer traffic is arriving marked with DSCP BE and tagged with a dot1p value of 3. Based on the configuration shown below for the VPRN service, what will be the DSCP and dot1p marking for the packet egressing at router PE 2? (Choose two)

Accepted Answer

A)  The DSCP value will be set to af21. 
B)  The DSCP value will be set to be. 
C)  TheDSCPvaluewillbesettoaf23. 
D)  The DSCP value will be set to af 12. 
E)  Thedot1pvaluewillbesetto5.
F) Thedot1pvaluewillbesetto2.
G) The dot1p value will be set to 3. 
A)  The DSCP value will be set to af21. 
B)  The DSCP value will be set to be. 
C)  TheDSCPvaluewillbesettoaf23. 
D)  The DSCP value will be set to af 12. 
E)  Thedot1pvaluewillbesetto5.
F) Thedot1pvaluewillbesetto2.
G) The dot1p value will be set to 3.

Question 3

Which of the following QoS functions does the slope policy perform?

Accepted Answer

A)  Classification 
B)  Marking 
C)  Buffer admission control 
D)  Scheduling 
A)  Classification 
B)  Marking 
C)  Buffer admission control 
D)  Scheduling

Question 4

Which of the following are major components of QoS functionality on the Nokia 7750 SR? (Choose three)

Accepted Answer

A)  Microflow reservations using RSVP 
B)  DSCP to EXP translation 
C)  Traffic classification 
D)  Automatic profiling and policy configuration 
E)  Buffer memory management
F) Traffic scheduling 
A)  Microflow reservations using RSVP 
B)  DSCP to EXP translation 
C)  Traffic classification 
D)  Automatic profiling and policy configuration 
E)  Buffer memory management
F) Traffic scheduling

Question 5

Which of the following components are NOT configured in a hierarchical scheduler policy?

Accepted Answer

A)  Queue parameters with which the queue will compete for bandwidth. 
B)  The level of hierarchy with which a group of schedulers is associated. 
C)  Bandwidth controls that limit each child scheduler or child queues associated with the scheduler. 
D)  The maximum bandwidth that the parent scheduler can offer its child queues or schedulers. 
A)  Queue parameters with which the queue will compete for bandwidth. 
B)  The level of hierarchy with which a group of schedulers is associated. 
C)  Bandwidth controls that limit each child scheduler or child queues associated with the scheduler. 
D)  The maximum bandwidth that the parent scheduler can offer its child queues or schedulers.

Question 6

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)

Accepted Answer

A)  Using dot1p bits of the 802.1q Ethernet frame header 
B)  Using DSCP bits within the ToS field of the IP packet header. 
C)  Using the IP precedence bits within the ToS field of the IP packet header. 
D)  Using the CLP bit of the ATM cell header. 
E)  Using the EXP bits of the MPLS transport label header. 
A)  Using dot1p bits of the 802.1q Ethernet frame header 
B)  Using DSCP bits within the ToS field of the IP packet header. 
C)  Using the IP precedence bits within the ToS field of the IP packet header. 
D)  Using the CLP bit of the ATM cell header. 
E)  Using the EXP bits of the MPLS transport label header.

Question 7

Which of the following can be used as classifiers of customer traffic? (Choose three)

Accepted Answer

A)  DSCP value 
B)  802.1p value 
C)  IP DF bit 
D)  TCP/UDP port numbers 
E)  HTML version number 
A)  DSCP value 
B)  802.1p value 
C)  IP DF bit 
D)  TCP/UDP port numbers 
E)  HTML version number

Question 8

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

Accepted Answer

A)  Several Tier 1, Tier 2, and Tier 3 schedulers can be defined within a policy. 
B)  A queue's parent scheduler must be a Tier-3 scheduler. 
C)  The parent must have a higher level in the hierarchy. 
D)  If no parent is configured, the queue/scheduler is considered orphaned. 
A)  Several Tier 1, Tier 2, and Tier 3 schedulers can be defined within a policy. 
B)  A queue's parent scheduler must be a Tier-3 scheduler. 
C)  The parent must have a higher level in the hierarchy. 
D)  If no parent is configured, the queue/scheduler is considered orphaned.

Question 9

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

Accepted Answer

A)  The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress. 
B)  The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied. 
C)  The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header. 
D)  The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress. 
A)  The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress. 
B)  The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied. 
C)  The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header. 
D)  The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

Question 10

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

Accepted Answer

A)  All out-of-profile traffic will be dropped before any in-profile is dropped. 
B)  The time average factor of 0 will discard all packets arriving in the shared buffer pool. 
C)  When the shared buffer utilization reaches 51%, in-profile packets might be dropped. 
D)  The highest probability with which an out-of-profile packet can be dropped is 20%. 
E)  When an in-profile packet arrives and the shared buffer utilization is at 69%, the packet will have approximately a 60% likelihood of being discarded. 
A)  All out-of-profile traffic will be dropped before any in-profile is dropped. 
B)  The time average factor of 0 will discard all packets arriving in the shared buffer pool. 
C)  When the shared buffer utilization reaches 51%, in-profile packets might be dropped. 
D)  The highest probability with which an out-of-profile packet can be dropped is 20%. 
E)  When an in-profile packet arrives and the shared buffer utilization is at 69%, the packet will have approximately a 60% likelihood of being discarded.

Question 11

Which of the following statements BEST describes the IntServ model?

Accepted Answer

A)  Has the ability to distinguish traffic in 32 different ways. 
B)  Uses the RSVP protocol to create microflows through a network. 
C)  Has the ability to manually configure foiwarding classes through a network. 
D)  Uses the RSVP protocol to create macroflows through a network. 
A)  Has the ability to distinguish traffic in 32 different ways. 
B)  Uses the RSVP protocol to create microflows through a network. 
C)  Has the ability to manually configure foiwarding classes through a network. 
D)  Uses the RSVP protocol to create macroflows through a network.

Question 12

Which of the following statements regarding scheduling are TRUE? (Choose two)

Accepted Answer

A)  Scheduler policies cannot be children of an egress port-scheduler. 
B)  HQoS provides a static method of allocating scheduling resources to each queue and/or child. 
C)  Scheduler policies can be applied to the MDA to schedule network ingress traffic. 
D)  Every time a scheduler-policy is assigned to a SAP, a new hardware scheduler is created to service the SAP. 
E)  A scheduler applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service. 
A)  Scheduler policies cannot be children of an egress port-scheduler. 
B)  HQoS provides a static method of allocating scheduling resources to each queue and/or child. 
C)  Scheduler policies can be applied to the MDA to schedule network ingress traffic. 
D)  Every time a scheduler-policy is assigned to a SAP, a new hardware scheduler is created to service the SAP. 
E)  A scheduler applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service.

Question 13

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

Accepted Answer

A)  The EXP bits in the MPLS header. 
B)  The packet's source and destination IP addresses. 
C)  The service ID of the service to which the SAP belongs. 
D)  The dot1p bits in the frame header. 
E)  The packet's Ethertype. 
A)  The EXP bits in the MPLS header. 
B)  The packet's source and destination IP addresses. 
C)  The service ID of the service to which the SAP belongs. 
D)  The dot1p bits in the frame header. 
E)  The packet's Ethertype.

Question 14

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 below for a VPLS service, what will be the DSCP and EXP marking for the packet egressing the network port on this PE router? (Choose two)

Accepted Answer

A)  The DSCP value will be set to af21. 
B)  The DSCP value will be set to af23. 
C)  The DSCP value will remain as ef. 
D)  The EXP value, in the MPLS headers, will be set to 4. 
E)  The EXP value, in the MPLS headers, will be set to 3. 
A)  The DSCP value will be set to af21. 
B)  The DSCP value will be set to af23. 
C)  The DSCP value will remain as ef. 
D)  The EXP value, in the MPLS headers, will be set to 4. 
E)  The EXP value, in the MPLS headers, will be set to 3.

Question 15

Which of the following statements about queue modes, and profile marking of packets when leaving a queue is FALSE?

Accepted Answer

A)  Profile-mode and priority-mode queues can only be configured on SAP ingress. 
B)  For network egress, egress re-classification can change the profile marked at ingress. 
C)  For SAP egress, the profile marked at ingress may change based on the scheduling loop. 
D)  For network ingress, the network policy can classify the packet as either in-profile, or out-of-profile. 
A)  Profile-mode and priority-mode queues can only be configured on SAP ingress. 
B)  For network egress, egress re-classification can change the profile marked at ingress. 
C)  For SAP egress, the profile marked at ingress may change based on the scheduling loop. 
D)  For network ingress, the network policy can classify the packet as either in-profile, or out-of-profile.

Question 16

In which of the following scenarios is self-generated traffic QoS (sgt-QoS) useful?

Accepted Answer

A)  EXP markings on transit control traffic are not set correctly. 
B)  The priority of all self-generated traffic needs to be lowered to allow all other traffic to take precedence. 
C)  The priority of various control packets requires special treatment throughout the network. 
D)  The BGP process is consuming too many CPU cycles and is impacting OSPF performance. 
A)  EXP markings on transit control traffic are not set correctly. 
B)  The priority of all self-generated traffic needs to be lowered to allow all other traffic to take precedence. 
C)  The priority of various control packets requires special treatment throughout the network. 
D)  The BGP process is consuming too many CPU cycles and is impacting OSPF performance.

Question 17

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

Accepted Answer

A)  The three most significant (first) bits define 8 forwarding classes. 
B)  The three least significant (last) bits of the DSCP specify the drop probability. 
C)  The full 8 bits of the TOS field are used for DSCP. 
D)  To convert DSCP to IP precedence, the three most significant (first) bits are matched. 
E)  DSCP provides for eight drop probabilities. 
A)  The three most significant (first) bits define 8 forwarding classes. 
B)  The three least significant (last) bits of the DSCP specify the drop probability. 
C)  The full 8 bits of the TOS field are used for DSCP. 
D)  To convert DSCP to IP precedence, the three most significant (first) bits are matched. 
E)  DSCP provides for eight drop probabilities.

Question 18

Which of the following statements is a characteristic of a CFHP arbiter?

Accepted Answer

A)  An arbiter can adjust the CIR of its child policers. 
B)  An arbiter rate-limits the collective output of several policers towards each egress FFPC. 
C)  An arbiter can adjust the bandwidth assigned to its child arbiters and child policers. 
D)  An arbiter does not need to honor the configurations of its child policers. 
A)  An arbiter can adjust the CIR of its child policers. 
B)  An arbiter rate-limits the collective output of several policers towards each egress FFPC. 
C)  An arbiter can adjust the bandwidth assigned to its child arbiters and child policers. 
D)  An arbiter does not need to honor the configurations of its child policers.

Question 19

Which of the following policies does NOT exist by default on a network port?

Accepted Answer

A)  A network policy for every network interface configured on the port. 
B)  A slope policy for the port on ingress. 
C)  A network queue policy for the corresponding MDA on ingress. 
D)  A network queue policy for the port on egress. 
A)  A network policy for every network interface configured on the port. 
B)  A slope policy for the port on ingress. 
C)  A network queue policy for the corresponding MDA on ingress. 
D)  A network queue policy for the port on egress.

Question 20

On the Nokia 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.

Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)

Which of the following QoS functions does the slope policy perform?

Which of the following are major components of QoS functionality on the Nokia 7750 SR? (Choose three)

Which of the following components are NOT configured in a hierarchical scheduler policy?

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)

Which of the following can be used as classifiers of customer traffic? (Choose three)

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

Which of the following statements BEST describes the IntServ model?

Which of the following statements regarding scheduling are TRUE? (Choose two)

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

Which of the following statements about queue modes, and profile marking of packets when leaving a queue is FALSE?

In which of the following scenarios is self-generated traffic QoS (sgt-QoS) useful?

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

Which of the following statements is a characteristic of a CFHP arbiter?

Which of the following policies does NOT exist by default on a network port?

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

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

Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)

Which of the following QoS functions does the slope policy perform?

Which of the following are major components of QoS functionality on the Nokia 7750 SR? (Choose three)

Which of the following components are NOT configured in a hierarchical scheduler policy?

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)

Which of the following can be used as classifiers of customer traffic? (Choose three)

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

Which of the following statements BEST describes the IntServ model?

Which of the following statements regarding scheduling are TRUE? (Choose two)

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

Which of the following statements about queue modes, and profile marking of packets when leaving a queue is FALSE?

In which of the following scenarios is self-generated traffic QoS (sgt-QoS) useful?

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

Which of the following statements is a characteristic of a CFHP arbiter?

Which of the following policies does NOT exist by default on a network port?

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

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