Cisco 300-550 Online Practice Questions and Exam Preparation

Cisco 300-550 Online Questions & Answers

• Question 31:

  

  Refer to the exhibit. Based on the YANG data model snippet, which RESTCONF URI should you use to retrieve data from the interfaces container?

  A. /restconf/data/my-interfaces:interfaces
  B. /restconf/data/my-interfaces:container:interfaces
  C. /restconf/operations/my-interfaces:interfaces
  D. /restconf/data/com.my-interfaces:interfaces
  A. /restconf/data/my-interfaces:interfaces

  ---

  Reference:

  https://www.iab.org/wp-content/IAB-uploads/2016/04/IoT-IAB-workshop-terminology-bclaise.pdf (See the page no 8, first line in the right corner)

• Question 32:

  What is the best way to specify the location of Python within a script?

  A. #!usr/bin/env bash
  B. #!usr/bin/env python
  C. #!usr/local/bin/python
  D. #!usr/bin/python
  E. #!/scriptname
  B. #!usr/bin/env python

  ---

  If you have several versions of Python installed, /usr/bin/env will ensure the interpreter used is the first one on your environment's $PATH. The alternative would be to hardcode something like #!/usr/bin/python; that's ok, but less flexible.

  Reference: http://stackoverflow.com/questions/2429511/why-do-people-write-usr-bin-env-python-on-the-first-line-of-a-python-script

• Question 33:

  What is the role of the NSO ConfD engine for network applications that are deployed in multivendor environments?

  A. ConfD provides a repository for configurations that are used in automated provisioning of devices after they are powered on.
  B. ConfD automatically generates network configurations based on network service definitions.
  C. ConfD maintains a database that represents the operational state of a network and provides YANG-based management interfaces for use by external systems.
  D. ConfD provides a library of common configuration tasks that can be quickly adapted for use on a variety of multivendor devices.
  C. ConfD maintains a database that represents the operational state of a network and provides YANG-based management interfaces for use by external systems.

• Question 34:

  Which tool streamlines the development of network applications?

  A. Java Runtime Engine
  B. software development kit
  C. command-line interface
  D. General Public License
  E. package management system
  B. software development kit

  ---

  Streamlines software development and integration effort required for advanced imaging and vision applications Imagine software developers could run their entire imaging / vision project on the (more familiar) CPU environment, while the code automatically gets translated and optimized on the (more power-efficient) DSP - With the CEVA Application Developer Kit (ADK) it is now possible

  Reference: http://www.ceva-dsp.com/Application-Developer-Kit

• Question 35:

  Which two protocols can the Cisco APIC-EM use to communicate with supported platforms? (Choose two.)

  A. OpFlex
  B. SNMPv2c
  C. SSH
  D. HTTPS
  E. RPC
  F. OpenFlow
  B. SNMPv2c
  C. SSH

  ---

  The Cisco APIC-EM communicates with its supported platforms using the following protocols: SNMPv2c or SNMPv3 Telnet or SSH 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_apic-em_deploy_guide_v_1_0_0_x_chapter_01.pdf

• Question 36:

  Which network is used by default for cluster sync between Cisco APICs?

  A. out of band management network
  B. VXLAN overlay network
  C. in-band management network
  D. infra-VTEP network
  C. in-band management network

  ---

  Reference: https://www.google.com/url?sa=tandrct=jandq=andesrc=sandsource=webandcd=1andcad=rjaanduact=8andved=0ahUKEwiPo8iJvajZAhUqCMAKHb8AAv8QFggnMAAandurl=https%3A%2F%2Fwww.cisco.com%2Fc%2Fen%2Fus%2Ftd%2Fdocs% 2Fswitches%2Fdatacenter%2Faci%2Fapic%2Fsw%2Fkb%2Fb_KB_Cluster_Management.htmlandusg=AOvVaw2m251qmJUOtw2ISCmnNmQx

• Question 37:

  Which two statements about IOS XE on a Cisco CSR1000v Router programmatic interface are true? (Choose two.)

  A. It supports I2RS.
  B. It supports open YANG data models
  C. It supports BGP-LS/PCEP as a southbound interface
  D. It supports RESTCONF
  E. It supports OpFlex
  C. It supports BGP-LS/PCEP as a southbound interface
  E. It supports OpFlex

• Question 38:

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

  A. YANG was conceptualized by Jerry Yang, former CEO of Yahoo
  B. YANG provides security beyond SSL 3.0.
  C. YANG can be executed similarly to a Python script.
  D. YANG is used by NETCONF to define objects and data in requests and replies
  E. YANG represents configuration? Operational, and RPC data.
  D. YANG is used by NETCONF to define objects and data in requests and replies
  E. YANG represents configuration? Operational, and RPC data.

  ---

  Reference: https://www.slideshare.net/cmoberg/a-30minute-introduction-to-netconf-and-yang

• Question 39:

  Which two technologies are Cisco recommended for securing NETCONF-based ore RESTCONF-based automation solutions? (Choose two.)

  A. ACLs that are deployed to secure the management plane of the network device
  B. ACLs that are deployed to the data plane at the edge of the network
  C. an out-of-band management network that uses VRFs for a segmented routing domain
  D. SSH and TLS whitelisting
  E. a routing policy that filters routes in the management network
  A. ACLs that are deployed to secure the management plane of the network device
  D. SSH and TLS whitelisting

• Question 40:

  YANG modeling supports which two comment styles? (Choose two.)

  A. A block comment is enclosed within "".
  B. A single-line comment starts with "#" and ends at the end of the line.
  C. A single-line comment starts with "!" and ends at the end of the line.
  D. A block comment is enclosed within "/*" and "*/".
  E. A single-line comment starts with "//" and ends at the end of the line.
  D. A block comment is enclosed within "/*" and "*/".
  E. A single-line comment starts with "//" and ends at the end of the line.

  ---

  Comments are C++ style. A single line comment starts with "//" and ends at the end of the line. A block comment is enclosed within "/*" and "*/".

  Reference: https://tools.ietf.org/html/draft-ietf-netmod-yang-00