4A0-107問題集、Nokia実際の試験問題

質問 1

If packets egressing a SAP do not match any criteria defined in the SAP-egress policy, which forwarding class will these packets be assigned to?

A. Best Effort.

B. If there is no match, packets will be dropped.

C. The default forwarding class defined in the SAP-egress policy.

D. The forwarding class inherited from network ingress classification.

正解: C

質問 2

Which of the following is NOT a factor when deciding if a packet can be accepted into a queue?

A. Forwarding class

B. Queue depth

C. HPO setting

D. Profile/priority state of a packet

正解: B

質問 3

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

A. Nowhere. Shaping is only performed in hardware and serviced in a round-robin.

B. On all ports on the Nokia 7750 SR.

C. On low-speed WAN links.

D. At the junction of low-speed to high-speed links or at places of traffic aggregation.

E. At the junction of high-speed to low-speed links or at places of traffic aggregation.

正解: E

質問 4

Which of the following statements defines the committed information rate?

A. It is the rate at which packets are forwarded out of a queue.

B. It is the minimum rate at which packets may be forwarded out of a queue.

C. It is the maximum rate at which packets may be forwarded out of a queue.

D. It is the rate at which a traffic stream is offered to a queue.

正解: B

質問 5

On the Nokia 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?

A. 48

B. 32

C. 8

D. 16

E. 56

正解: B

質問 6

What is the maximum number of SAP-ingress policies that can be applied on a SAP?

A. 3

B. 4

C. 5

D. 8

E. 1

F. 2

正解: E

質問 7

According to the configuration shown above, which of the following about the classification and marking of self- generated BGP traffic is TRUE?

A. It will be marked as DSCP BE and classified into forwarding class BE.

B. It will be marked as DSCP NC1 and classified into forwarding class AF.

C. It will be marked as DSCP NC1 and classified into forwarding class BE.

D. It will be marked as DSCP NC1 and classified into forwarding class NC.

正解: B

質問 8

An egress port scheduler applied to an Ethernet port has a configured bandwidth of 100 Mbps. All frames transmitted on the port are 80 bytes. What is the aggregate transmit bandwidth of all queues using the port scheduler?

A. 100Mbps

B. 100+ 100 * 20/(80 + 20) = 120 Mbps

C. 100Mbps * 20/(80 + 20) = 20 Mbps

D. 100Mbps * 80/(80 + 20) = 80 Mbps

正解: A

質問 9

According to the SAP-ingress QoS policy shown, which packets have a higher priority to enter queue 2?

A. Packets marked with dscp = af33

B. Packets marked with dot1p = 4

C. There are no packets mapped to queue 2.

D. All packets mapped to queue 2 have the same priority to enter this queue.

正解: A

質問 10

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. 3

B. 5

C. None of the above.

D. 6

E. 2

正解: E

質問 11

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

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 packet's Ethertype.

E. The dot1p bits in the frame header.

正解: B,D,E

Nokia Quality of Service - 4A0-107 模擬練習