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Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/600-511.html

QUESTION 51
Which statement about OpenStack and ACI is true?

A.    Integration can leverage a Cisco APIC plug-in or a Group Policy plug-in.
B.    The Nova ML2 plug-in maps APIs into the ACI policy model.
C.    The Cisco APIC driver communicates northbound using the OpFlex plug-in.
D.    The Cisco APIC driver is used in place of an OVS driver to communicate to the virtual machine managers.

Answer: A

QUESTION 52
Which three elements of the ACI fabric contribute to zero-touch deployment capability? (Choose three.)

A.    centralized controller for policy, bootstrap, and image management
B.    topology auto discovery, automated configuration, and infrastructure addressing
C.    loose wiring validation
D.    support for iBGP confederations
E.    NX-API and NETCONF protocol interfaces
F.    orchestration using Visore

Answer: ABC

QUESTION 53
Which three features or protocols can be used to integrate ACI into existing management tools? (Choose three.)

A.    SNMP
B.    RESTful APIs
C.    Syslog
D.    OSPF
E.    CallHome
F.    BGP
G.    RSPAN

Answer: ABC

QUESTION 54
Which three options are the primary benefits of a leaf-spine architecture? (Choose three.)

A.    linear scalability
B.    robust multipathing
C.    use of Rapid PVST
D.    deterministic latency
E.    increased scalability of the proxy database
F.    1.5:1 oversubscribed ports
G.    best suited for integration into an access/aggregation/core topology

Answer: ABD

QUESTION 55
If flowlet switching and dynamic flow prioritization are enabled, which two statements about ACI fabric load balancing are true? (Choose two.)

A.    A flowlet is a subset of a TCP/UDP flow that is composed of packets that are part of the same bursts of packets.
B.    A flowlet is a subset of a TCP/UDP flow that is composed of packets of approximately the same size (64 bytes to 127 is flowlet 1, 128 to 255 is flowlet 2, …).
C.    The first few identified flowlets of a TCP/UDP flow are treated with a higher priority than the last flowlet of the same TCP/UDP flow.
D.    Each flowlet of a TCP/UDP flow is treated with same priority and takes the same path to avoid out-of-order packets.
E.    The egress leaf reorders out-of-order packets when flowlet switching is used.

Answer: AC

QUESTION 56
You have an application named “E_commerce” in tenant “Production”, which is composed of three tiers of servers (web, app, and DB). Each tier sits in a different EPG (epgWeb, epgApp, and epgDB). Which action should be performed first to measure the performance or packet loss of this application?

A.    Check the health score of the application profile “E_commerce”.
B.    Check the faults of the application profile “E_commerce”.
C.    Configure a troubleshooting policy for on-demand atomic counters for epgWeb-to-epgApp traffic and epgApp-to-epgDB traffic.
D.    Configure a monitoring policy for each of the EPGs of the “E_commerce” application.

Answer: C

QUESTION 57
Which two statements about server connectivity in ACI are true? (Choose two.)

A.    Unicast traffic from servers in the same EPG is not permitted unless a specific contract allows it.
B.    Unicast traffic from servers in a different EPG is not permitted unless a specific contract allows it.
C.    Unicast traffic from servers in a different EPG is not permitted unless both EPGs are in the same bridge domain.
D.    Multicast traffic from servers in the same EPG is not permitted unless a specific contract allows it.
E.    Multicast traffic from servers in the different EPG is not permitted unless a specific contract allows it.
F.    Multicast traffic from servers in a different EPG is not permitted unless both EPGs are in the same bridge domain.

Answer: BF

QUESTION 58
Which statement about the programming model and APIs available to automate network functions within ACI is true?

A.    You can leverage a custom-built GUI that sends HTTPS calls.
B.    Advanced orchestration tools like Cisco Intelligent Automation for Cloud or Cisco UCS Director are available for end-to-end provisioning of compute and network resources using the open OpFlex protocol.
C.    Every configurable element in ACI is part of the object tree known as the software development kit.
D.    You can modify configurations with HTTP DELETE calls and retrieve information with HTTP POST calls.
E.    You can perform a CLI-based configuration from your desktop to the controller using cURL.

Answer: E

QUESTION 59
Which two constructs make up a security policy within the Cisco APIC? (Choose two.)

A.    bridge domain
B.    contracts
C.    virtual route forwarders
D.    endpoint groups
E.    filters

Answer: BE

QUESTION 60
Which three options are the major components of the ACI fabric? (Choose three.)

A.    bidirectional optics
B.    Application Policy Infrastructure Controller
C.    spine switches
D.    directory service nodes
E.    leaf switches
F.    Layer 4 to Layer 7 service devices

Answer: BCE

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