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Home Cisco® 644-068

Cisco® 644-068 Exam Practice Questions (P. 3)

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Question #11
Which two of the following are components of Cisco MediaNet that simplify network assessment, monitoring, and troubleshooting? (Choose two.)
  1. A
    MediaTrace
  2. B
    MediaPing, using real SSRC-ID
  3. C
    Traffic Simulator, based on IP SLA
  4. D
    Traffic Simulator, based on ping

Correct Answer:
Answer: A, C

Question #12
Which three of the following statements are correct regarding security features available on Cisco Catalyst switches? (Choose three.)
  1. A
    Port security prevents MAC address flooding.
  2. B
    DHCP snooping prevents rogue DHCP servers from being placed on the network.
  3. C
    IP Source Guard prevents ARP spoofing attacks.
  4. D
    Private VLAN prevents client to client communication.
  5. E
    MAC sec provides end-to-end encryption.

Correct Answer:
Answer: A, B, D

Question #13
Which three of the following statements correctly describe Cisco Nexus 7000 switch family? (Choose three.)
  1. A
    The Cisco Nexus 7000 series integrates data center Fibre Channel features and Ethernet switching features into a single operating system.
  2. B
    NX-OS is a modular operating system based on FreeBSD.
  3. C
    The Cisco Nexus 7000 series offers virtualization by Virtual Device Contexts.
  4. D
    The Cisco Nexus 7000 series provides high availability using hitless forwarding, ISSU, and stateful process restart.
  5. E
    The Cisco Nexus 7000 series offers support for Cisco IOS and NX-OS.

Correct Answer:
Answer: A, C, D

Question #14
Which two of the following statements are true regarding positioning of the Cisco Catalyst 6500 series versus the Cisco Nexus 7000 series? (Choose two.)
  1. A
    The Cisco Catalyst 6500 series is the better choice if the core is outside the data center.
  2. B
    The Cisco Nexus 7000 series is the better choice if rich WAN services are required.
  3. C
    The Cisco Catalyst 6500 series is the better choice if L2VPN is required.
  4. D
    Both, the Cisco Catalyst 6500 series and the Cisco Nexus 7000 series support NX- OScapabilities.

Correct Answer:
Answer: A, C

Question #15
Which three of the following statements correctly describe a hierarchical LAN design? (Choose three.)
  1. A
    The main services of the access layer include physical connectivity to endpoints, automatic endpoint discovery, and port-based security features.
  2. B
    Due to the high number of ports, performance is one of the key features that is required at the access layer.
  3. C
    The distribution layer is commonly the first routing hop.
  4. D
    Scalability, high availability, and fast convergence are typical requirements for the core layer.
  5. E
    The core layer provides aggregation services to the access layer.

Correct Answer:
Answer: A, C, D

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