Nokia 4A0-107 Online Practice Questions and Exam Preparation

Nokia 4A0-107 Online Questions & Answers

• Question 141:

  In a Nokia 7750 SR, which of the following QoS policies CANNOT include packet classification criteria?

  A. SAP-ingress
  B. SAP-egress
  C. Network-queue
  D. Network
  B. SAP-egress

• Question 142:

  

  In the image shown above, the network QoS policy is applied properly to a Nokia 7750 SR. An MPLS packet with dot1p=1, EXP=4, and DSCP=AF is received. Which forwarding class and profile is assigned to this packet?

  A. EF, in
  B. H1, out
  C. BE, out
  D. L1, in
  D. L1, in

• Question 143:

  Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called "high"? (Choose two)

  

  A. It is a parent scheduler.
  B. It is the top-level scheduler.
  C. It can allocate up to 50 Mbps of bandwidth to scheduler "low" since the bandwidth is not used by another Tier 3 scheduler.
  D. It is a child scheduler.
  E. It can only have queues as children.
  A. It is a parent scheduler.
  D. It is a child scheduler.

• Question 144:

  Which of the following statements are TRUE regarding the remarking of packets arriving on the network interface whose ToS-marking-state is set to trusted and remarking enabled on network egress? (Choose two)

  A. Native IP Packets will not be remarked.
  B. Native IP Packets will be remarked.
  C. Packets associated with a VPRN service on an upstream node will not be remarked.
  D. Packets associated with an ES service on an upstream node will be remarked.
  B. Native IP Packets will be remarked.
  D. Packets associated with an ES service on an upstream node will be remarked.

• Question 145:

  

  Based on the image shown above, and assuming that the default scheduler of the Nokia 7750 SR is on an IOM2 card, in which order will packets be scheduled?

  A. Queue 6 within-CIR packets, then queue 5 within-CIR packets, then queue 5 and queue 6 above-CIR packets in round-robin.
  B. Queue 6 within-CIR packets, then queue 5 within-CIR packets, then queue 5 and queue 6 above-CIR packets in biased round-robin.
  C. Queue 6 within-CIR packets, then queue 5 within-CIR packets, then queue 6 above-CIR packets, and finally queue 5 above-CIR packets.
  D. Queue 6 and queue 5 within-CIR packets in biased round-robin, then queue 5 and queue 6 above-CIR packets in round-robin.
  B. Queue 6 within-CIR packets, then queue 5 within-CIR packets, then queue 5 and queue 6 above-CIR packets in biased round-robin.

• Question 146:

  Why are the four QoS steps (classification, queuing, scheduling, and marking/remarking) executed twice for every packet entering a 7750 SR router?

  A. Once before going through each of the redundant switching fabrics.
  B. To protect against failure of either ingress or egress card.
  C. Once before going through the switching fabric, and once more before going onto the egress port.
  D. Once to decide if the packet is in-profile or out-of-profile, and once more to process the packet according to its profile.
  C. Once before going through the switching fabric, and once more before going onto the egress port.

• Question 147:

  What is the maximum number of forwarding subclasses a forwarding class can have?

  A. 3
  B. 64
  C. 72
  D. 16
  E. 56
  E. 56

• Question 148:

  Which of the following statements BEST defines policing?

  A. The process of delaying packets within a traffic stream to have them conform to a defined traffic profile.
  B. The overall treatment of a defined subset of a customer's traffic within a DiffServ domain.
  C. The process of discarding packets within a traffic stream in accordance with the state of a meter to enforce a defined traffic profile.
  D. The action of setting the DiffServ codepoint of a packet prior to its entry into a downstream DiffServ domain.
  E. A specified algorithm or operation that is implemented in a node in order to realize one or more per-hop behaviors.
  C. The process of discarding packets within a traffic stream in accordance with the state of a meter to enforce a defined traffic profile.

• Question 149:

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

  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.

• Question 150:

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

  A. An egress unicast queue defined in a network queue policy
  B. An ingress unicast queue defined in a SAP-ingress policy
  C. An ingress multipoint queue defined in a SAP-ingress policy
  D. An ingress multipoint queue defined in a network queue policy
  B. An ingress unicast queue defined in a SAP-ingress policy