Ccna certification Practice Tests

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Appendix 

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  Answers to Practice Test Questions

 72.  C.  The question mark signifies the starting point for a series of request query parameters 

in a Uniform Resource Identifier (URI) string. For example, the URI string might look 

something like this: 

https://server/path/api?para1=test1¶2=test2. The 

backslash is not used in a URI. The forward slash helps delimit the various components of 

a URI. The ampersand delimits the various request query parameters if there is more than 

one.

 73.  C.  The HyperText Transfer Protocol (HTTP) action verb POST will insert or create a 

data item when referencing an application programming interface (API). The HTTP action 

verb GET will read data from an API. The HTTP action verb UPDATE is not a valid 

verb; therefore, this is an invalid answer. The HTTP action verb PUT will only replace or 

update a data item; it will not insert a data item.

 74.  B.  A status code of 504 means that the command that was sent to the server did not 

return in a timely fashion and timed out. A status code of 400 would depict that the 

command is missing parameters. If a command is restricted for the authentication 

supplied, a status code of 403 would be returned. If a service is down or improperly 

responding, a status code of 500 would be returned.

 75.  B.  Ansible, Chef, and Puppet are configuration management tools. They operate by 

applying specific configurations to server or network devices. A network management 

station (NMS) is typically used with the Simple Network Management Protocol (SNMP) 

to centralize polling of SNMP counters and allow for devices to send alerts. Software-

defined networking (SDN) is a method of centralizing the control and management planes 

of a network so that the network device can focus on the data plane. Centralized logging 

is used with syslog so that all logs can be sent to a centralized area for analysis.

 76.  A.  Ansible uses the YAML format to store configuration. The Cisco DNA Center 

stores configuration internally inside of its database, but many things are exportable via 

JavaScript Object Notation (JSON). Chef and Puppet both use Embedded Ruby (ERB) 

templates to store configuration.

 77.  C.  The Inventory component defines the various hosts and their connection information 

in an Ansible setup. The Playbook component defines the script to execute to perform the 

configuration management. The 

ansible.cfg file controls the settings for the Ansible 

server. The Modules component allows Ansible to connect to and understand various 

systems.

 78.  A.  Ansible does not require an agent to apply changes to a Linux-based server or other 

network device. It uses Secure Shell (SSH) TCP port 22 to apply the configuration. 

Puppet and Chef both require agents to be installed on the managed hosts. Although 

Cisco DNA Center is installed on top of a Linux distribution, Cisco DNA Center does 

not support Linux servers; it is primarily used for the management of Cisco devices. You 

could certainly create an extensible package to send commands to a Linux box through an 

SNMP agent, but currently it would need to be developed. Ansible supports Linux-based 

servers without an agent and without any development for communications.

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Chapter 6: Automation and Programmability (Domain 6)