Nokia 4A0-107 Exam Practice Test Instant Access

Question 1

Which of the following about the process of queuing self-generated traffic in the Nokia 7750 SR is TRUE?

AIngress traffic is stored in IOM queues and egress traffic is stored in CPM queues.

BIngress traffic is stored in CPM queues and egress traffic is stored in IOM queues.

CIt is always stored in CPM queues.

DIt is always stored in IOM queues.

Answer : B

Question 2

Which of the following statements about the default scheduler in the Nokia 7750 SR is TRUE?

AA queue will be serviced as expedited if all of the forwarding classes mapped to it are expedited, regardless of its configured type.

BA queue will be serviced as best-effort if all of the forwarding classes mapped to it are best-effort, regardless of its configured type.

CA queue will be serviced as expedited if at least one of the forwarding classes mapped to it is expedited, regardless of its configured type.

DA queue will be serviced as expedited if its type is configured as expedited, regardless of the forwarding classes mapped to it.

Answer : A

Question 3

What type of unwanted packet drops can the proper configuration of a queue's burst-limit parameter prevent?

APacket drops in the local queue resulting from traffic congestion.

BPacket drops on the downstream nodes resulting from traffic congestion.

CPacket drops in the local queue resulting from traffic bursts.

DPacket drops on the downstream nodes resulting from traffic bursts.

Answer : C

Question 4

If two queues complete for bandwidth in a hierarchical scheduler environment, which parameter is used by their parent scheduler to determine the priority with which each queue can use bandwidth above its committed rate?

Alevel

Bcir-level

Cweight

Dcir-weight

Answer : C

Question 5

When we select the adaptation rule ''min'', how are the operational CIR/PIR rates of a queue calculated?

AThe administrative PIR values are ignored and both operational rates are set to the minimum residual rate allowed by the hardware.

BThe administrative PIR value is ignored and both operational rates are set to the administrative CIR value.

CThey are chosen as the largest multiple of the hardware rate step that is less than or equal to the corresponding CIR/PIR administrative value.

DThey are chosen as the smallest multiple of the hardware rate step that is greater than or equal to the corresponding CIR/PIR administrative value.

Answer : D

Question 6

Which of the following is an example of something that CAN be done with hierarchical policing (CFHP) but CANNOT be done with standalone policers?

ALimiting the maximum forwarding rate of each individual policer and, at the same time, marking, packets as in-profile or out-of-profile.

BPutting packets in a buffer as they are received, and marking packets as in-profile or out-of-profile as they are removed from the buffer.

CRate-limiting the collective output of several policers, and to reallocate bandwidth that is not utilized by some policers to other policers that need to use it.

DRate-limiting the collective output of several policers towards each egress FFPC, while maintaining control of the maximum overall forwarding rate.

Answer : A

Question 7

Which action should be taken to ensure that packets do not use the shared buffer space when put into a queue?

ASet the queue's CBS to 0

BSet the queue's MBS equal to the CBS

CSet the queue's high-priority-only equal to the MBS

DSet the queue's MBS to 0

ESet the queue's high-priority-only to 0

Answer : B

Nokia 4A0-107 Nokia Quality of Service Exam Practice Test