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  Aug 3

  Alcatel Lucent认证4A0-107考试题库介绍

  考试代号: 4A0-107
  问题数量:56 Q&As
  
  更新时间: 2009-09-06
  注册地点: Prometric/Pearson VUE
  题库全称:Alcatel-Lucent Quality of Service

  免费4A0-107题库Demo赏析

  　
  　
  Exam : Alcatel-Lucent 4A0-107
  Title : Alcatel-Lucent Quality of Service

  1. Which of the following are not considered a differentiator/classifier of customer traffic at layer 2 or 3 of the OSI model? Choose all that apply.
  A. DSCP
  B. 802.1p
  C. IP Precedence
  D. TCP/UDP Port numbers
  E. HTML version
  Answer: DE

  2. Which of the following are Ethernet SAP encapsulation types? Choose all that apply.
  A. Null
  B. Dot1Q
  C. Q-in-Q
  D. IPCP
  E. BCP-Null
  F. BCPdot1.q
  G. Frame Relay
  Answer: ABC

  3. Which of the following are characteristics of DSCP. Choose 3 answers?
  A. Part of the layer 3 header
  B. A 6-bit field of which the first 3 bits indicate the IP Precedence bits
  C. Specifies 8 different priorities
  D. Specifies 3 precedence levels
  E. Part of the layer 2 header
  F. Specifies 64 different per hop behaviors
  Answer: ABF

  4. Which of the following are examples of metrics for QoS?
  A. delay, jitter, packet loss
  B. latency, FIFO, WRED
  C. signal degradation, attenuation, line loss
  D. SNR, radial CODEC inversion, latency
  E. Inverse Queue Depletion, delay, packet loss
  Answer: A

  5. True of False. There is a default network policy applied to all router interfaces?
  A. True
  B. False
  Answer: A

  6. True of False: A proper end-to-end QoS solution is becoming more of an issue even as more bandwidth is being made available to today’s bandwidth-intensive, interactive multimedia applications.
  A. True
  B. False
  Answer: A

  7. The IOM is responsible for which of the tasks listed below? Choose 3 answers.
  A. local processing of critical control plane functions
  B. IPSec VPN hardware accelerated encryption
  C. queuing, scheduling, and buffer management
  D. IP/MPLS/MAC forwarding lookup
  E. Layer 2 / Layer 3 encapsulation
  Answer: CDE

  8. Which of the following statements are true regarding the DSCP bits? Choose 3 answers.
  A. The precedence level bits define 4 Assured Forwarding Classes
  B. The three least significant bits of the DSCP bits specify the drop probability
  C. The 8 bits of the TOS field are used for DSCP
  D. To convert DSCP to IP Precedence the three most significant bits are matched
  E. DSCP provides for 64 precedence levels with 3 drop probabilities
  Answer: ABD

  9. Which of the following are not categories of forwarding classes on the Alcatel-Lucent 7750 SR? Choose 3 answers.
  A. Real-time
  B. Assured
  C. Non-conforming
  D. High Priority
  E. Expedited
  Answer: ACE

  10. Which of the following statement is true with regards to Q-in-Q on the Alcatel-Lucent 7750 SR?
  A. Q-in-Q defines a mechanism for encapsulating queued DSCP traffic at the provider edge
  B. Q-in-Q is a new protocol that supercedes 802.1p priority-bit mapping in a QoS-aware network
  C. The use of either the inner or outer 802.1p bits in the 802.1q frames for QoS classification can be configured on the Alcatel-Lucent 7750 SR
  D. Q-in-Q is a protocol which re-encapsulates trunked p-bits in an outer label that is mapped into the EXP bits in an MPLS backbone
  E. none of the above
  Answer: C

  11. Pick from the following list the 3 major components of the QoS features on the Alcatel-Lucent 7750 SR.
  A. virtual inflow classification
  B. real-time QoS shaping
  C. traffic classification
  D. 802.1q p-bit rate-limiting
  E. buffer memory management
  F. traffic scheduling
  Answer: CEF

  12. Which of the following QoS policies does not have a default policy?
  A. scheduler policies
  B. service ingress
  C. service egress
  D. network queue
  E. network
  F. slope
  Answer: A

  13. Which of the following is not one of the ingress matching criteria for a network policy? Choose all that apply.
  A. TCP port numbers
  B. LSP EXP
  C. DSCP
  D. Source and destination IP addresses
  E. Dot1P priority
  Answer: AD

  14. Which of the following are Trusted boundaries by default? Choose 2 answers.
  A. An IES SAP
  B. A VPLS SAP
  C. A network port
  D. A VPRN SAP
  E. An access port
  Answer: CD

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