Nokia 4A0-107 Exam Questions Instant Access

Question 1

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

AThe primary contributors to latency are distance, scheduling, and congestion.

BThe weighted round robin scheduling algorithm will result in more delay for high priority traffic than the regular round robin algorithm.

CThe round robin scheduling algorithm will result in less jitter for low priority traffic than a strict priority scheduler.

DPacket loss can be reduced by decreasing the amount of buffer space available to a queue.

ELatency can be reduced by increasing the amount of buffer space available to a queue.

Answer : A, C

Question 2

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 3

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).

ATRUE

BFALSE

Answer : B

Question 4

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

AThe policy should be placed in a 'shutdown' state before changes are made.

BA new network policy should be created and applied to the interface, overwriting the previous policy.

CThe policy must first be removed from the interface, then modified and re-applied to the interface.

DBefore the policy can be changed, it must be deleted with the no network qos command.

EBefore any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.

Answer : B

Question 5

A hierarchical scheduler policy with the shown parameters is configured at a service ingress. If the offered rate of each queue is 10Mbps, what is the operational PIR and CIR for queue 3?

APIR = 5 Mbps, CIR = 0 Mbps

BPIR= 4 Mbps, CIR = 1 Mbps

CPIR= 6 Mbps, CIR = 4 Mbps

DPIR= 6 Mbps, CIR = 1 Mbps

Answer : D

Question 6

For which of the following queues does a Nokia 7750 SR allocate a separate hardware queue per each destination fast forward path complex (FFPC)?

AAn egress unicast queue defined in a network queue policy

BAn ingress unicast queue defined in a SAP-ingress policy

CAn ingress multipoint queue defined in a SAP-ingress policy

DAn ingress multipoint queue defined in a network queue policy

Answer : B

Question 7

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?

AIt will be queued in the reserved portion of the buffer pool and remain out-of-profile.

BIt will be queued in the reserved portion of the buffer pool if there are no in-profile packets already in the queue.

CIt will be queued in the reserved portion of the buffer pool and be in-profile.

DIt will be queued in the shared portion of the buffer pool but contend for shared buffer space with packets from other queues.

EIt will be queued in the shared portion of the buffer pool but may be dropped if the buffer utilization exceeds the start-average value of the low slope.

Answer : A

Nokia Quality of Service 4A0-107 Exam Questions