Ccna ® Certification Practice Tests Jon Buhagiar

Chapter 6

: Automation and Programmability

(Domain 6)

1. B.  A reason to automate a process for the configuration of

several routers is to create a positive outcome that can be

reproduced. Automating processes for configuration decreases

the possibility for misconfiguration. Automation of

configuration does not decrease problems from the new

configuration; if anything, it automates the increase of possible

problems. Although it might seem like automating a process for

configuration allows you to do less work, it is not always the

case.

2. C.  Creating a Python script to configure each router is the best

way to complete this task. You can automate the process and

save time since the entry of the route is a repetitious process.

Copying and pasting scripts from Notepad++ or Excel into each

router will require you to log into each router. Doing this

increases the chances of missing a router. You could also work

with a partner and start at different ends of the list, but again,

this approach introduces the possibility of errors and ties up two

technicians.

3. C.  The number one motivating factor to use network

automation is to reduce the human error factor when creating

bulk changes. Network automation will not reduce the number

of changes to be made. As an example, an updated ACL on all

the routers will still need to be updated on all the routers.

Network automation also does not reduce the complications that

arise from changes; it actually increases them. Network

automation also increases the planning time for changes. A

network automation script can change everything rapidly; if it’s

wrong, it can even lead to an outage of services.

4. B.  The term DevOps is used to describe the framework

responsible for assisting in network automation. It is usually

written in conjunction with network operations, but it is

considered a development function using the DevOps

framework. The term NetOps refers to the network operation

team’s responsibility. The term SysOps is used to describe the

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control of network systems such as DNS, Active Directory (AD),

and DHCP, just to name a few. The term SecOps refers to the

security operation as it pertains to the network.

5. A.  The management methodology that is commonly used by

developers for network automation is Lean and Agile. Agile

focuses on an adaptive approach for simultaneous workflows,

such as the configuration of a default route on several routers.

The Waterfall management methodology is used for projects in a

linear process that does not allow for going back to a prior

phase. The Kanban management methodology is used to

improve existing processes. Scrum is primarily focused on

getting more work done more quickly.

6. D.  After a network automation script is released to production,

the very next process should be to monitor its effects on the

network. This step should already be considered with pre-built

metrics so that you can positively conclude its intended

function. The testing step should have been done prior to the

deployment phase. The building phase is done when you are

ready to test a completed configuration change. The planning

phase is the first phase before anything is put into motion; it is

where you have determined the metrics for the project, which

determines if the changes are successful.

7. B.  The YAML Ain’t Markup Language (YAML) markup

language uses mapping to define keys and values as pairs.