Download Nokia Quality of Service.4A0-107.CertKiller.2019-07-04.76q.vcex

Vendor: Nokia
Exam Code: 4A0-107
Exam Name: Nokia Quality of Service
Date: Jul 04, 2019
File Size: 2 MB
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Demo Questions

Question 1
The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.
  1. 8, 6, 3
  2. 8, 8, 6
  3. 16, 8, 4
  4. 8, 6, 4
  5. 24, 16, 8
Correct answer: A
Question 2
Which of the following are examples of metrics for QoS?
  1. Signal degradation, attenuation, line loss
  2. Latency, FIFO, WRED
  3. Delay, jitter, packet loss
  4. SNR, queue depth, latency
  5. Attenuation, dispersion, latency
Correct answer: C
Question 3
What is the 6-bit binary representation of DSCP value AF21?
  1. 010011
  2. 100010
  3. 010001
  4. 001100
  5. 010010
Correct answer: E
Question 4
Which of the following are characteristics of DSCP? (Choose two)
  1. DSCP is part of the Layer 3 header.
  2. DSCP is a 6-bit field.
  3. DSCP specifies eight different priorities.
  4. DSCP specifies four precedence levels.
  5. DSCP is part of the Layer 2 header
  6. DSCP specifies 128 different per-hop behaviors.
Correct answer: AB
Question 5
Which of the following are major components of QoS functionality on the Nokia 7750 SR? (Choose three)
  1. Microflow reservations using RSVP
  2. DSCP to EXP translation
  3. Traffic classification
  4. Automatic profiling and policy configuration
  5. Buffer memory management
  6. Traffic scheduling
Correct answer: CEF
Question 6
Which of the following are characteristics of 802.1p? (Choose two)
  1. 802.1p adds 16 bits to the Layer 2 header,
  2. 802.1p adds 16 bits to the Layer 3 header.
  3. 802.1p specifies 64 different priority levels.
  4. 802.1p uses a field in the 802.1Q header.
  5. 802.1p uses a field in the Layer 3 IP header
  6. 802.1p defines a 3-bit Class of Service field.
Correct answer: DF
Question 7
Which of the following BEST describes a SAP when regarding QoS?
  1. A point in the network where EXP bits can be mapped to one of eight predefined FCs, each one with its own queue.
  2. A logical point in a service tunnel where all of customer traffic is aggregated.
  3. A point at which the initial classification of customer traffic occurs.
  4. A point in the network where QoS parameters are discarded in favor of lower-level hardware queuing functions, such as LLI (Link Layer Interleave).
  5. A point in the network where traffic flows from multiple different services are queued together, based on forwarding class.
Correct answer: C
Question 8
Individual application streams are considered microflows, whereas __________ are considered macroflows.
  1. SAPs
  2. SDPs
  3. Services
  4. Queues
  5. Schedulers
  6. Forwarding classes
Correct answer: F
Question 9
On a Nokia IOM 3, how is buffer memory allocated per forwarding complex?
  1. 512 MB ingress, 512 MB egress
  2. 256 MB ingress, 256 MB egress
  3. 1 GB dynamically allocated between ingress and egress.
  4. 768 MB dynamically allocated between ingress and egress.
  5. 768 MB, with a minimum of 256 MB ingress and egress, and an additional 256 MB dynamically allocated.
Correct answer: D
Question 10
WRED can be used to help avoid TCP slow-start synch problems.
  1. TRUE
  2. FALSE
Correct answer: A
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