Cisco 300-550 Online Practice Questions and Exam Preparation

Cisco 300-550 Online Questions & Answers

• Question 51:

  What is the top-level object for the MIT in ACI?

  A. home
  B. root
  C. uni
  D. top
  B. root

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  Reference:

  http://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/aci-fabric-controller/white-paper-c11-729999.html (See the Figure 2).

• Question 52:

  Which two security techniques are important to implement a secured management network that is used to access the management plane of a Cisco APIC cluster? (Choose two.)

  A. VRFs
  B. NAT
  C. ipfilter
  D. ACLs
  E. route maps
  B. NAT
  D. ACLs

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  The Cisco APIC-EM should never be directly connected to the Internet. It should not be deployed outside of a NAT configured or protected datacenter environment.

  Each contract is defined by a name and by filters (ACLs). Filters are a collection of layer 4 protocol and ports.

  Reference: http://www.cisco.com/c/en/us/td/docs/cloud-systems-management/application-policy-infrastructure-controller-enterprise-module/1-0-x/deploy-guide/b_apic-em_deploy_guide_v_1_0_0_x/b_apicem_deploy_guide_v_1_0_0_x_chapter_0100.pdf http://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-731960.html

• Question 53:

  Which concept should you use whet trying to improve a frequently repeated and predictable manual process?

  A. scalability
  B. lifecycle management
  C. deployment
  D. orchestration
  E. automation
  E. automation

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  Manual processes often result in delays in locating archived specimens for add-on or reflex testing. One way to reduce or eliminate potential workflow disruptions is to automate storage and retrieval.

  Reference: http://www.mlo-online.com/the-lean-lab-automation-workflow-and-efficiency.php

• Question 54:

  DRAG DROP

  Drag and drop the protocol on the loft to its correct description on the right.

  Select and Place:

  

  

• Question 55:

  Which two statements about OpenFlow are true? (Choose two.)

  A. The OpenFlow flow table contains header fields, counters, and actions
  B. OpenFlow automatically determines network forwarding rules.
  C. OpenFlow interfaces with the management plane
  D. OpenFlow is a southbound protocol
  E. OpenFlow is an agentless technology, like Ansible
  F. OpenFlow is a northbound protocol
  A. The OpenFlow flow table contains header fields, counters, and actions
  D. OpenFlow is a southbound protocol

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  Reference:

  For D, https://learninglabs.cisco.com/lab/restconf-101/step/3

• Question 56:

  Refer to the exhibit.

  

  What is the output from this Python3 script?

  A. ['192.168.1.0/24', '192.168.2.0/24', '192.168.3.0/24']
  B. ['192.168.1.0/24', '192.168.5.0/24', '192.168.9.0/24']
  C. ['192.168.4.0/24', '192.168.5.0/24', '192.168.6.0/24']
  D. ['192.168.1.0/24', '192.168.7.0/24', '192.168.9.0/24']
  B. ['192.168.1.0/24', '192.168.5.0/24', '192.168.9.0/24']

• Question 57:

  Which library or platform can be used to leverage APIC REST API easily?

  A. acitoolkit
  B. COBRA
  C. NX-API
  D. APIC-EM
  A. acitoolkit

• Question 58:

  Management protocols like NETCONF access network elements on well-known ports. Which design practice hardens a network device implementation?

  A. Specify the source interface for SSH
  B. Limit access to port 830, well-known clients, and SSH VTY.
  C. Enable CoPP.
  D. Configure ip http secure-server.
  B. Limit access to port 830, well-known clients, and SSH VTY.

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  Netconf uses SSH over port 830.

• Question 59:

  

  Refer to the exhibit. Which Linux command provides output that is similar to the output in the exhibit?

  A. cat/etc/hosts
  B. tcpdump -a
  C. ifconfig -av
  D. netstat -an
  D. netstat -an

• Question 60:

  The network operator asks you to change the config setting on one specific host. All 300 hosts are managed with Puppet. Which action results in the requested change?

  A. This is an unsupported feature of Puppet, and Chef or Ansible must be used to make this change.
  B. Go to that host and make the config change. Puppet sees the local override and skips that part.
  C. Add an if statement to the Puppet manifest, and add specific config settings, in case Puppet is running on that host.
  D. Add a node-based variable lookup override in Hiera, so that if Puppet runs on that host, it takes the variable from Hiera.
  D. Add a node-based variable lookup override in Hiera, so that if Puppet runs on that host, it takes the variable from Hiera.

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  Reference: https://docs.puppet.com/puppet/4.9/hiera_use_function.html#merge-behaviors