600-511 Online Practice Questions and Answers

Which two ACI features assist with application service-level assurance? (Choose two.)

A. tenant health scores

B. Layer 4 to Layer 7 service integration

C. Cisco APIC database sharding

D. fabric health scores

E. QoS

Which method does ACI fabric dynamic load balancing use to provide optimal balancing of flows across the fabric?

A. Flows are dynamically allocated according to congestion at the leaf.

B. Flows are dynamically allocated according to hop-by-hop congestion in the fabric.

C. Flows are dynamically allocated according to link BER.

D. Flows are distributed in per packet round-robin.

Which four options are important functions offered by the Cisco APIC? (Choose four.)

A. fault and event management

B. hypervisor, storage, and computing management

C. Layer 3 through 5 services integration

D. statistical collection and analysis

E. performance management

F. nonblocking data plane

G. 1.5:1 oversubscribed ports

H. BGP and OSPF routing protocol support

Before you design an ACI fabric, it is important to understand existing application interactions. If you do not understand them entirely, which approach can you use?

A. Design a classic routing configuration in which everybody can talk to anybody as the equivalent to a contract called "anyany" that all EPGs provide and consume.

B. Design around the Cisco ACI whitelist model using the common tenant, where, by default, two EPGs can communicate to each other in the absence of a contract.

C. Map each EPG to familiar constructs such as VLANs that provide segmentation and will apply policy application interactions.

D. Leverage advanced orchestration tools like Cisco Intelligent Automation for Cloud or Cisco UCS Director to document existing application interactions.

You want to satisfy the business, risk, and customer requirements. Which option is a consideration when you select and design an ACI fabric?

A. the requirement for meaningful services (such as traffic load balancing, segmentation, filtering, traffic insertion, and monitoring) for workloads provided by virtual Layer 4 to Layer 7 servers

B. virtual machine mobility because moving from one server to another one would have to occur on the same leaf so that ACI can preserve virtual machine visibility and policy enforcement

C. the breakdown of virtual versus physical workloads because virtual workloads are treated preferentially in ACI

D. the requirement for a central point of management, but no centralized control plane

Which statement about a whitelist security model is true?

A. Permit all traffic.

B. Deny specific traffic flows, and permit any other traffic.

C. Permit specific traffic flows, and deny any other traffic.

D. Deny all traffic.

OpenStack integration with the Cisco APIC is provided through a plug-in to which OpenStack Project?

A. Nova

B. Swift

C. Cinder

D. Neutron

E. Glance

Which three statements about the group policy model within ACI are true? (Choose three.)

A. It is an abstracted view of application requirements.

B. Policy is portable.

C. Policy is based on the IP addresses of application services.

D. Policy is extensible.

E. Policy maintains flow information.

F. Policy is enforced from the Cisco APIC.

G. Policy follows the blacklist model.

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-oforder packets.

E. The egress leaf reorders out-of-order packets when flowlet switching is used.

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.

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

Which option is for migrating an existing Data Center network to Cisco ACI?

A. First migrate existing FEXs to 9500.

B. First connect the core (for example, Cisco ASR 9000 Router or Cisco Nexus 7000 Series Switches) to the ACI fabric that supports external connectivity routing mechanisms (OSPF NSSA, iBGP, and static routes).

C. First disable flooding on each bridge domain during migration to avoid broadcast storms.

D. First migrate existing access layer (for example, Catalyst 5500/6000 + FEX) to Cisco MDS 9500 Series.

In an ACI topology, what is the minimum required number of Cisco APICs?

A. one

B. five

C. two

D. four

E. three

What is the purpose of the mgmt tenant?

A. used for in-band Cisco APIC to switch node communication, routable outside the fabric

B. used for in-band and out-of-band Cisco APIC to switch node communication, nonroutable outside the fabric

C. used for out-of-band Cisco APIC to switch node communication, nonroutable outside the fabric

D. used for out-of-band Cisco APIC to switch node communication, routable outside the fabric

Which network devices should be connected to the spine?

A. Cisco APIC controllers

B. leaf devices

C. leaf and spine devices

D. centralized security and load-balancing services for the fabric