Quiz about DEVNET 100-200

Question 1

Refer to the exhibit. A developer just finished testing a Python script and wants to save the list of packages and versions installed on the current machine. The developer must make sure that it will not cause any issues if tested on another device due to different library versions. Which line of code needs to be placed on the snippet where the code is missing?

Accepted Answer

pip freeze > requirements.txt

Answer

pip freeze 2> requirements.txt

Answer

pip freeze => requirements.txt

Answer

pip freeze | requirements.txt

Question 2

Which infrastructure automation method is shown?

Accepted Answer

. CI/CD pipeline

Answer

Lean

Answer

Agile

Answer

Waterfall

Question 3

What are two advantages of YANG-based approaches for infrastructure automation? (Choose two.)

Accepted Answer

multi-platform vendor abstraction

Accepted Answer

designed to reflect networking concepts

Answer

compiles to executables that run on network devices

Answer

directly maps to JavaScript

Answer

command line driven interface

Question 4

An automation script fails to connect to an internal server exactly 1 out of 2 times it is executed. This behavior is seen from different clients. Which networking device must be at fault?

Accepted Answer

. load balancer

Answer

. laptop on which the script is running

Answer

switch

Answer

router

Question 5

Which CI/CD tool is an automation tool used to build, test, and deploy software?

Accepted Answer

Jenkins

Answer

Git

Answer

Gradle

Answer

Nagios

Question 6

What is represented in this YANG module?

Accepted Answer

interface management

Answer

BGP

Answer

OpenFlow

Answer

topology

Question 7

Question 7.

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 8

What are two advantages of the Model-View-Controller software design pattern? (Choose two.)

Accepted Answer

allows for multiple views of the same model

Answer

separates responsibilities of the code, which makes future modifications easier

Answer

simplifies network automation

Answer

makes code easier to deploy using CI/CD pipelines

Answer

reduces the need for error handling

Question 9

Which product provides network controller-level management features?

Accepted Answer

Cisco DNA Center

Answer

Cisco ISE

Answer

Cisco UCS Manager

Answer

Cisco NX-OS

Question 10

Which OWASP threat occurs when untrusted data is supplied as input to an interpreter as part of a command or query?

Accepted Answer

. injection

Answer

broken authentication

Answer

data exposure

Answer

cross-site scripting

Question 11

What is a procedural component of CI/CD pipelines?

Accepted Answer

Bundled artifacts must be generated.

Answer

Every test must pass for the pipeline to continue its execution

Answer

Some tests fall without stopping the pipeline execution.

Answer

The release label that identifies the build is optional.

Question 12

A company requires a new platform to store large volumes of log data that is generated in their assembly plant. The platform must be scalable, so the underlying technology must provide a path for fast deployment of new nodes for data and indexing? The data contains sensitive information, so specialist encryption tools must be used to secure the data. Which application deployment model meets the requirements?

Accepted Answer

private cloud

Answer

edge

Answer

public cloud

Answer

hybrid cloud

Question 13

What is a benefit of a distributed version control system?

Accepted Answer

allows users to work on the codebase even when not connected to the Internet

Answer

encourages users to commit small places of work to the system more frequently

Answer

ensures that all code meets minimum standards before being committed to the system

Answer

ensures that all code is tested before being committed to the system

Question 14

What is the purpose of the Cisco VIRL software tool?

Accepted Answer

to simulate and model networks

Answer

to verify configurations against compliance standards

Answer

to automate API workflows

Answer

to test performance of an application

Question 15

Refer to the exhibit. An application must be deployed on a server that has other applications installed. The server resources are to be allocated based on the deployment requirements. The OS for each application must be independent. Which type of deployment is used?

Accepted Answer

virtual machines

Answer

hybrid

Answer

. containers

Answer

. bare metal

Question 16

Which OWASP threat takes advantage of a web application that the user has already authenticated to execute an attack?

Accepted Answer

CSRF

Answer

phishing

Answer

DoS

Answer

brute force attack

Question 17

What is a benefit of using a code review process in application development?

Accepted Answer

eliminates common mistakes during development

Answer

accelerates the deployment of new features in an existing application

Answer

provides version control during code development

Answer

enables the quick deployment of new code

Question 18

Access to the management interface of devices must be restricted by using SSH and HTTPS. Which two ports must be included in the ACLs for the protocols to work? (Choose two.)

Accepted Answer

22

Accepted Answer

443

Answer

23

Answer

80

Answer

880

Question 19

A developer has created a new image to use in a Docker build and has added a tag for the image by using the command:$ docker tag 84fe411926287 local/app:0.4Which command must be executed next to build the Docker image using the tag?

Accepted Answer

$ docker build -t local/app:0.4

Answer

$ docker build -p local/app:0.4

Answer

$ docker run -t local/app:0.4

Answer

$ docker run -p local/app:0.4

Question 20

A developer created a new secure API and is testing the functionality locally. The API was added to a container for further testing, and other team members and applications need to connect to the API. Which command exposes the API in the container as port 8443 and allows connections external to the host?

Accepted Answer

docker run -p 0.0.0.0:8443:443/tcp myapiservice

Answer

docker run -p 127.0.0.1:80:8443/tcp myapiservice

Answer

docker run -p 0.0.0.0:443:8443/tcp myapiservice

Answer

docker run -p 127.0.0.1:443:8443/tcp myapiservice

Question 21

Refer to the exhibit. Which command, including arguments, is executed when the container starts?

Accepted Answer

/bin/sh -c "/bin/sleep 30 && nginx -g 'daemon off;'"

Answer

/bin/sh -c "/bin/sleep 10 && nginx -g 'daemon off;'"

Answer

/bin/bash -c "/bin/sleep 30 && nginx -g 'daemon off;'"

Answer

/bin/sh -c "/bin/sleep 30" && nginx -g 'daemon off;'

Question 22

A company is adopting DevOps as part of an internal transformation, and is reviewing the success of the first deployments. Developers and engineers are working together to resolve any resulting issues. However, this new way of working has increased overhead, and the team is finding it difficult to complete releases in time.Which area of the CALMS framework must the company target for improvement?

Accepted Answer

Lean

Answer

Collaboration

Answer

. Sharing

Answer

Measurement

Question 23

What are two roles of an artifact repository in a CI/CD pipeline? (Choose two.)

Accepted Answer

stores files needed and generated during the build process

Accepted Answer

provides traceable, searchable, and manageable binary files

Answer

is required for CI/CD pipelines executed on a public cloud infrastructure

Answer

allows for comparing and merging changes in the source code

Answer

is required for managing open source software

Question 24

A function my_func() returns True when it executes normally. Which Python snippet tests my_func()?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 25

What should a CI/CD pipeline aim to achieve?

Accepted Answer

to require minimal manual interaction

Answer

to allow manual testing before deployment

Answer

to support new deployments on a fixed monthly schedule

Answer

to provide a documented process for feedback

Hide Solution Discussion 8

Question 26

Which OWASP threat does this example demonstrate?

Accepted Answer

cross-site scripting

Answer

broken access control

Answer

SQL injection

Answer

man-in-the-middle

Question 27

A company is looking for a cloud deployment which will only use the on-premise infrastructure, is user self-service, and is easy to scale. Which cloud solution should be selected for these requirements?

Accepted Answer

private

Answer

multi

Answer

hybrid

Answer

public

Question 28

Which type of threat occurs when an attacker can send hostile data to an interpreter within an application?

Accepted Answer

injection

Answer

sensitive data exposure

Answer

broken authentication

Answer

cross-site scripting

Question 29

Question 29.

Accepted Answer

Option A is correct

Answer

H

Question 30

Question 30.

Accepted Answer

Option A is correct

Answer

H

Question 31

What is the benefit of edge computing?

Accepted Answer

It reduces network latency by moving processing closer to the data source.

Answer

It reduces data velocity from devices or other data sources.

Answer

It simplifies security as devices and processing are brought closer together.

Answer

It removes the need for centralized data processing.

Question 32

What is a benefit of using edge computing in an IoT implementation?

Accepted Answer

high speed in data processing

Answer

low network design complexity

Answer

low cost in network design

Answer

. high availability for network components

Question 33

After a project is migrated to a new codebase, the `old_project` directory must be deleted. This directory has multiple read-only flies, and it must be deleted recursively without prompting for confirmation. Which Bash command must be used?

Accepted Answer

rm -rf old_project

Answer

rmdir -p old_project

Answer

rm -r old_project

Answer

rmdir old_project

Question 34

FILL BLANK -Fill in the blanks to complete the Bash script in which each file in a directory is renamed to its SHA256 hash?TARGET_DIR=/usr/local/certs -for f in '__________ __________'; do__________ $f' openssl sha -sha256 -r < $f | cut -f1 -cl' ''

Accepted Answer

TARGET_DIR=/usr/local/certs -for f in '/usr/local/certs'; doecho $f' openssl sha -sha256 -r < $f | cut -f1 -cl' ''

Answer

h

Question 35

Question 35.

Accepted Answer

Option A is correct

Answer

H

Question 36

When using the Bash shell, how is the output of the devnet command saved to a file named `output.txt`?

Accepted Answer

devnet > output.txt

Answer

devnet | output.txt

Answer

. devnet < output.txt

Answer

. devnet & output.txt

Question 37

Question 37.

Accepted Answer

Option A is correct

Answer

h

Question 38

A new application is being developed that must be hardware independent. The application includes an administrative component which is accessed using aWindows desktop GUI. Installation and management of the environment must be fully automated. Which application deployment type meets the requirements?

Accepted Answer

container

Answer

virtual machine

Answer

virtual Python environment

Answer

bare metal

Question 39

What are two characteristics of Bare Metal environments that are related to application deployment? (Choose two.)

Accepted Answer

provides workloads with access to hardware features

Accepted Answer

provides the hypervisor to host virtual servers

Answer

specifically designed for container-based workloads

Answer

suitable for legacy applications that do not support virtualization

Answer

not compatible with other cloud services such as PaaS or SaaS offerings

Question 40

Which platform is run directly on top of a hypervisor?

Accepted Answer

virtual machines

Answer

bare metal systems

Answer

containers

Answer

applications

Question 41

Which two elements are foundational principles of DevOps? (Choose two.)

Accepted Answer

organizing cross-functional teams over organizational silos

Accepted Answer

optimizing the cost of infrastructures

Answer

designing applications as microservices

Answer

encouraging containers for the deployment of applications

Answer

. automating over documenting

Question 42

Which function does the EXPOSE line perform when building an image from this Dockerfile?

Accepted Answer

Local port 8080 is accessible from other containers running on the same docker host as the container that launched with this docker image.

Answer

Local port 8080 of the container that launched with this docker image is accessible from co-hosted containers and external clients.

Answer

Local port 8080 is not reachable at all because no IP address is specified along with the EXPOSE command of the Dockerfile.

Answer

Local port 8080 of the container that launched with this docker image is accessible to external clients.

Question 43

A local Docker alpine image has been created with an image ID of a391665405fe and tagged as `latest`. Which command creates a running container based on the tagged image, with the container port 8080 bound to port 80 on the host?

Accepted Answer

docker run -p 8080:80 alpine:latest

Answer

docker build -p 8080:80 alpine:latest

Answer

docker exec -p 8080:80 alpine:latest

Answer

docker start -p 8080:80 alpine:latest

Question 44

What are two security benefits of a Docker-based application? (Choose two.)

Accepted Answer

. easier to patch because Docker containers include only dependencies that the application requires

Accepted Answer

allows for separation of applications that traditionally run on the same host

Answer

natively secures access to secrets that are used by the running application

Answer

guarantees container images are secured and free of vulnerabilities

Answer

prevents information leakage occurring when unhandled exceptions are returned in HTTP responses

Question 45

Question 45.

Accepted Answer

Option A is correct

Answer

h

Question 46

Refer to the exhibit.A process running on the host wants to access the service running inside this Docker container. Which port or ports are used to make a connection?

Accepted Answer

port 5000

Answer

only outbound connections between 3000 and 5000 are possible

Answer

port 3000

Answer

any port between 3000 and 5000

Question 47

An engineer needs to retrieve a list of locally available Firepower Threat Defense upgrade packages by using the Firepower Management Center REST API. The engineer uses a GET request with the URL:/api/fmc_platform/v1/updates/upgradepackages/f413afeb-e6f6-75f4-9169-6d9bd49s625eWhat does `f413afeb-e6f6-75f4-9169-6d9bd49s625e` represent?

Accepted Answer

package UUID

Answer

container UUID

Answer

domain UUID

Answer

object UUID

Question 48

What is a characteristic of the Cisco Finesse platform?

Accepted Answer

Applications are added to the platform from the desktop remotely.

Answer

Applications allow services to be invoked on a network triggered event.

Answer

The platform provides a ready-to-go platform for HD video and audio conferencing

Answer

The platform includes an enterprise-class IM engine.

Question 49

Which Cisco platform provides organization-wide automation, security, policy enforcement, and agility across wired and wireless networks?

Accepted Answer

Cisco DNA Center

Answer

Cisco SD-WAN

Answer

Cisco ACI

Answer

Cisco Umbrella

Question 50

Which Cisco product provides malware and content filtering through DNS?

Accepted Answer

Cisco Umbrella

Answer

Cisco ASA Firepower module

Answer

Cisco AMP

Answer

Cisco ISE

Question 51

A company wants to accelerate the adoption of technologies that will simplify its operations. Staff have different skill levels and are looking for a single site to find easy-to-consume beginner, intermediate, and advanced multidomain use cases. Which site should be used?

Accepted Answer

DevNet Automation Exchange

Answer

DevNet Ecosystem Exchange

Answer

DevNet Creations

Answer

DevNet Support Forum

Question 52

Refer to the exhibit. A network engineer wants to use an API to update information about device interfaces. The network devices are deployed in a Cisco DevNetSandbox and have running interfaces. Which line of code needs to be placed in the snippet where the code is missing?

Accepted Answer

{'Content-Type': 'application/yang.data+xml', 'Accept': 'application/yang.data+xml'}

Answer

{'Content-Type': 'application/yang.data+yaml', 'Accept': 'application/yang.data+yaml'}

Answer

{'Content-Type': 'application/restconf.data+json', 'Accept': 'application/restconf.data+json'}

Answer

{'Content-Type': 'application/yang.data+utf8', 'Accept': 'application/restconf.data+utf8'}

Question 53

Refer to the exhibit. A network engineer works on a Cisco DevNet application that is available for download on the Cisco DevNet website. The engineer prepares a bash script to automate operations that relate to the application. Which workflow is being automated in the bash script?

Accepted Answer

compilation, installation, and configuration of the Cisco DevNet application so that it starts automatically

Answer

compilation and configuration of the Cisco DevNet application so that it must be started manually

Answer

compilation and installation of the Cisco DevNet application for an autonomous deployment model

Answer

installation and configuration of the Cisco DevNet application so that it starts manually

Question 54

Question 54.

Accepted Answer

Option A is correct

Answer

H

Question 55

Refer to the exhibit. A developer creates a script to obtain a list of devices by using the Cisco DNA Center API. The remote server authorizes the request only if an authentication token is supplied in the headers. A function named get_auth_token() must retrieve a valid token by using HTTP Basic Authentication. Which code must be added to complete the get_auth_token() function?

Accepted Answer

. resp = requests.post(url, auth=HTTPBasicAuth(DNAC_USER, DNAC_PASSWORD)) token = resp.json()['Token'] return token

Answer

resp = requests.post(url, auth=(DNAC_USER, DNAC_PASSWORD)) token = resp.json ()['Token'] return token

Answer

resp = http.post(url, auth=HTTPBasicAuth(DNAC_USER, DNAC_PASSWORD)) token = resp.json()['Token'] return token

Answer

resp = http.post(url, auth=(DNAC_USER, DNAC_PASSWORD)) token = resp.json()['Token'] return token

Question 56

Refer to the exhibit. A network engineer uses model-driven programmability to monitor and perform changes on the network. The network engineer decides to use the NETCONF RPC message to complete one of their tasks. What is accomplished by sending the RPC message?

Accepted Answer

The running-config of the device is returned.

Answer

The name of each interface is reset to a default name.

Answer

All the YANG capabilities supported by the device are returned.

Answer

A list of interface names is returned.

Question 57

DRAG DROP -Drag and drop the code from the bottom onto the box where the code is missing in the Python script to complete a function to return all the clients on a network by using the Cisco Meraki Dashboard API. Not all options are used.Select and Place:

Accepted Answer

Option A is correct

Answer

h

Question 58

What is a capability of the NETCONF protocol?

Accepted Answer

allows XML messages to be exchanged via the SSH protocol

Answer

. allows Python scripts to be executed externally from a network device

Answer

uses JSON to encode data in its content layer

Answer

exposes a web-based interface

Question 59

Refer to the exhibit. Which line must be included in the Bash script for the Python code to succeed?

Accepted Answer

export WEBEX_TEAMS_ACCESS_TOKEN=your_access_token_here

Answer

define WEBEX_TEAMS_ACCESS_TOKEN=your_access_token_here

Answer

set WEBEX_TEAMS_ACCESS_TOKEN=your_access_token_here

Answer

WEBEX_TEAMS_ACCESS_TOKEN=your_access_token_here

Question 60

Which platform is used to programmatically create a space and invite users for collaboration?

Accepted Answer

Cisco Webex

Answer

Cisco Intersight

Answer

Cisco Finesse

Answer

Cisco UCM

Question 61

Refer to the exhibit. A developer wants to create a room named cisco through Webex API. The developer prepares the request by putting an API token inside the authorization header; however, the given HTTP call returns error code 400. How must the call parameters be changed to ensure a valid response?

Accepted Answer

Replace the team body parameter with the name body parameter.

Answer

Replace cisco with a valid name for a team.

Answer

Change the token in the header with the authorization token.

Answer

Change the HTTP method of the call to PUT.

Question 62

Refer to the exhibit. A network engineer must change the configuration on devices daily. The Python script must collect CLI arguments from the user, organize data according to the Cisco-IOS-XE-native YANG model, and utilize Cisco REST APIs to make the configuration. Which workflow is being automated by thePython script?

Accepted Answer

updating an existing route on the device

Answer

adding a new route to a device

Answer

including a route on the device and overwriting the current routes

Answer

deleting the route that is passed through the command-line variables

Question 63

Why is refactoring done during test-driven development?

Accepted Answer

to improve maintainability and readability

Answer

to enable larger objects and longer methods

Answer

to ensure that the previous uses of the objects are explained

Answer

to ensure the duplication of essential code

Question 64

Which tool is used to block all traffic to the domain by using a single API call?

Accepted Answer

Cisco Umbrella

Answer

Cisco Firepower

Answer

Cisco AMP

Answer

Cisco ISE

DEVNET 100-200

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