DEVASC_200-901_July_2023-v1.2.pdf

Developing Applications and Automating Workflows using Cisco Platforms (DEVASC)
Exam Name: Developing Applications and Automating Workflows using Cisco Platforms (DEVASC)
Exam Code: 200-901
Exam Price: $300
Duration: 120
Number of Questions: 100±
Passing Score: 825
Get Latest & Actual Exam's Question and Answers from © Homer CO., LTD. We cover ALL Cisco and Non-Cisco Exam Dumps. Cisco
Written & LAB Dump F5, Comptia, AWS, Azure, Oracle, Huawei, Aruba, Fortinet, F5 101, 201, 301a & 301b, RedHat Linux,
Comptia, CEHv10, Palo Alto, Check Point, EC Council and many more.
"We make sale ONLY if the dump is stable" Contact us: cciehomer@gmail.com Whatsapp +1-302-440-1843
Developed by: Hussain & Evan
Dump Vendor: Homer Co., Ltd.
Website: COMING SOON
Contact us: cciehomer@gmail.com or homerwilliams@cciehomer.com
© 2022 Homer Co., Ltd.
Get Latest & Actual Exam's Question and Answers from © Homer CO., LTD. We cover ALL Cisco and Non-Cisco Exam Dumps.
Cisco Written & CCIE LAB Dump, AWS, Microsoft, Azure, Oracle, Huawei, Aruba, Fortinet, F5 101 & F5 201, RedHat Linux, Comptia, CEHv1x, Palo Alto, Check Point, EC Council and many more.
CCIEHOMER "We make sale ONLY if the dump is stable" Contact us: cciehomer@gmail.com OR homerwilliams@cciehomer.com OR Whatsapp +1-302-440-1843

QUESTION 1
An authentication 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?
A. Laptop on which the scripted is running
B. Router
C. Switch
D. Load balancer
Correct Answer: D
QUESTION 2
Which two items are Cisco DevNet resources? (Choose two.)
A. TAC support
B. Bitbucket
C. Sandbox
D. Software research
E. API Documentation
Correct Answer: CE
QUESTION 3
Which line is an example of the start of a chunk from a unified diff?
A. @@ -90,88 +20191008T1349@@
B. @@ -20191007T1200 +88,90 @@
C. @@ -20191007T1200 +20191008T1349@@
D. @@ -88,10 +88,6 @@
Correct Answer: D
QUESTION 4
Which two encoding formats do YANG interfaces support? (Choose two.)
A. JSON
B. XML

C. XHTML
D. Plain text
E. BER
Correct Answer: AB
QUESTION 5
In python, which expression checks whether the script returns a success status code when the Requests library is used?
A. response.status_code == requests.ok
B. response.status_code == requests.codes.ok
C. response.code == requests.codes.ok
D. response.status_code ! == requests.codes.ok
Correct Answer: B
QUESTION 6
What is the outcome of executing this command?
git clone ssh:/john@example.com/path/to/my-project.git
A. Creates a local copy of a repository called "my-project"
B. Creates a copy of a branch called "my-project"
C. Initiates a new Git repository called "my-project"
D. Creates a new branch called "my-project"
Correct Answer: A
QUESTION 7
Refer to the exhibit. What does the python function do?

A. It returns DNAC user and password.
B. It returns HTTP Basic Authentication.
C. It returns an authorization token.
D. It reads a token from a local JSON file and posts the token to the DNAC URL.
Correct Answer: C
QUESTION 8
Which two types of NAT are used in a network? (Choose two.)
A. Static NAT
B. Normal NAT
C. Multicast NAT
D. Dynamic NAT
E. Router NAT
Correct Answer: AD
QUESTION 9
Refer to the exhibit. Which Python data structure does my_json contain?

A. List
B. Json
C. Map
D. Dict
Correct Answer: D
QUESTION 10
Refer to the exhibit. Which JSON is equivalent to the XML-encoded data?

A.

B.
C.

D.
Correct Answer: C
QUESTION 11
Which Cisco DevNet resource allows access to products in a development lab to explore, learn, and build application that use Cisco APLs?
A. DevNet Communities
B. DevNet Code Exchange
C. DevNet Automation Exchange
D. DevNet Sandbox
Correct Answer: D
QUESTION 12
Which two statements are true about Cisco UCS Manager, Cisco UCS Director, or Cisco Intersight APIs? (Choose two.)
A. Cisco Intersight API interactions can be encoded in XML or JSON and require an APIs key in the HTTP header for authentication.
B. USC Director API interactions can be XML-or JSON-encoded and require an APLs key in the HTTP header for authentication.
C. UCS manager API interactions are XML-encoded and require a cookie in the method for authentication.
D. Cisco Intersight uses XML to encoded API interactions and requires an API key pair for authentication.
E. UCS manager uses JSON to encode API interactions and utilizes Base64-encoded credentials in the HTTP header for authentication.

Correct Answer: BC
QUESTION 13
A developer is writing an application that uses a REST API and the application requires a valid response from the API.
Which element of the response is used in the conditional check?
A. URL
B. Status code
C. Link
D. Body
E. Headers
Correct Answer: B
QUESTION 14
What are two characteristics of Bare Metal environments that are related to application deployment? (Choose two.)
A. Provide the hypervisor to host virtual servers
B. Specifically designed for container-based workloads.
C. Provides workloads with access to hardware features
D. Suitable for legacy application that do not support virtualization
E. Not compatible with other cloud services such as PaaS or SaaS offerings.
Correct Answer: AD
QUESTION 15
Which task is performed because the test-driven development approach is being used?
A. testing existing software before developing new code
B. refactoring code that is covered by existing tests
C. writing code without committing any coding violations
D. creating test scenarios based on continuous development
Correct Answer: B
QUESTION 16
Which two statements describe the traits of an asynchronous API call? (Choose two.)

A. The order in which API calls return can be guaranteed
B. A call to an API does not block the code, but rather it allows application processing to continue
C. The end user can experience latency or performance lag while waiting for the API call to return
D. Code execution blocks or waits for the call to an API to return.
E. A callback function typically is used to process the response from an API call
Correct Answer: BE
QUESTION 17
A function my_func() returns True when it executes normally. Which Python snippet tests my_func()?
A.
B.
C.
D.
Correct Answer: A
QUESTION 18
When using the Bash shell, how it the output of the devnet command saved to a tile named "output.txt"?
A. devnet & output.txt
B. devnet > output.txt
C. devnet < output.txt
D. devnet I output.txt

Correct Answer: B
QUESTION 19
When a Cisco IOS XE networking device is configured using RESTCONF, what is the default data-encoding method?
A. XML
B. x-form-encoding
C. YANG
D. YAML
Correct Answer: A
QUESTION 20
What is an example of a network interface hardware address?
A. domain name
B. IP address
C. workstation name
D. MAC address
Correct Answer: D
QUESTION 21
Which REST architectural constraint indicates that no client context should be stored on the server between requests?
A. stateless
B. uniform interface
C. cacheable
D. client-server
Correct Answer: A
QUESTION 22
An application calls a REST API and expects a result set of more than 550 records, but each time the call is made, only 25 are returned.
Which feature limits the amount of data that is returned by the API?
A. pagination
B. payload limit

C. rate limiting
D. service timeouts
Correct Answer: A
QUESTION 23
Refer to the exhibits. A developer is troubleshooting an API with the given API documentation and cURL command. What is the cause of this problem?

A. The user is not allowed to post massages from their account
B. The request body is missing or incomplete
C. The API token specified is expired
D. The authorization header is missing or incomplete
Correct Answer: D
QUESTION 24
Which CI/CD tool is an automation tool used to build, test, and deploy software?
A. Nagios

B. Gradle
C. Jenkins
D. Git
Correct Answer: C
QUESTION 25
Which two statements describe the advantages of using a version control system? (Choose two.)
A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch.
B. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts.
C. It provides tooling to automate application builds and infrastructure provisioning.
D. It allows developers to write effective unit tests.
E. It provides a system to track User Stories and allocate to backlogs.
Correct Answer: AB
QUESTION 26
In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?
A. AAA
B. SOA
C. NS
D. CNAME
Correct Answer: D
QUESTION 27
Which principle is a value from the manifesto for Agile software development?
A. adhering to a plan over responding to requirements
B. detailed documentation over working software
C. processes and tools over teams and inter actions
D. customer collaboration over contract negotiation
Correct Answer: D
QUESTION 28
Which API is used to obtain data about voicemail ports?

A. Finesse gadgets
B. Cisco Unified Communications manager
C. Webex devices
D. Webex teams
Correct Answer: B
QUESTION 29
Refer to the exhibit. The output of a unified diff when comparing two versions of a Python script is shown. Which two "single_request_timeout()" functions are defined
in fish.py and cat.py? (Choose two.)

A.
B.

C.
D.

E.
Correct Answer: BC
QUESTION 30
Which two statements about JSON and XML are true? (Choose two.)
A. JSON objects are collections of key-value pairs.
B. The syntax of JSON contains tags, elements, and attributes.
C. JSON arrays are an unordered set of key value pairs.
D. The syntax of XML contains tags, elements, and attributes.
E. XML objects are collections of key-value pairs.
Correct Answer: AD
QUESTION 31
A company has written a script that creates a log bundle from the Cisco DNA Center every day. The script runs without error and the log bundles are produced.
However, when the script is run during business hours, people report poor voice quality of phone calls. What explains this behavior?
A. The application is running in the Voice VLAN and causes delays and jitter in the subnet.
B. The speed and duplex settings in Cisco DNA Center are sot incorrectly, which causes the transfer to be too slow.
C. The script is written in a low-level programming language where there is no memory safety.
This causes a buffer overflow and disruption on the network.
D. Generating the logs causes the CPU on the network controller to spike, which causes delays in forwarding the voice IP packets.

Correct Answer: A
QUESTION 32
Refer to the exhibit. What is represented in this YANG module?

A. interface management
B. topology
C. BGP
D. OpenFlow
Correct Answer: A
QUESTION 33
Refer to the exhibit. A process on the host wants to access the service running inside this Docker container.
Which port is used to make a connection?
A. only outbound connections between 3000 and 5000 are possible
B. port 3000
C. any port between 3000 and 5000
D. port 5000
Correct Answer: B
QUESTION 34
Which platform has an API that can be used to obtain a list of vulnerable software on user devices?
A. Cisco Umbrella
B. Cisco Firepower
C. Cisco Identity Services Engine
D. Cisco Advanced Malware Protection
Correct Answer: D
QUESTION 35
On which network plane is routing protocol traffic handled?
A. data plane
B. management plane
C. authentication plane
D. control plane

Correct Answer: D
QUESTION 36
Which type of HTTP method is used by the Meraki and Webex Teams APIs to send webhook notifications?
A. HTTP GET
B. HTTP PUT
C. HTTP HEAD
D. HTTP POST
Correct Answer: D
QUESTION 37
Before which process is code review performed when version control is used?
A. committing code
B. branching code
C. merge of code
D. checkout of code
Correct Answer: C
QUESTION 38
Refer to the exhibit. Which two statements about the network diagram are true? (Choose two.)

A. PC-A and PC-B are in the same subnet.
B. One of the routers has two connected serial interfaces.
C. The subnet of PC-C can contain 256 hosts.
D. R1 and R3 are in the same subnet.
E. The subnet address of PC-B has 18 bits dedicated to the network portion.
Correct Answer: AB
QUESTION 39
Which statement describes the benefit of using functions in programming?
A. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read.
B. Functions ensure that a developer understands the inner logic contained before using them as part of a script or application.
C. Functions create the implementation of secret and encrypted algorithms.
D. Functions store mutable values within a script 01 application.
Correct Answer: A
QUESTION 40
Refer to the exhibit. An administrator attempts to perform a GET using the Cisco IOS XE RESTCONF API to return the hostname of a device. The sequence diagram
illustrates the HTTP messages observed.
Which change to the API request resolves the issue?

A. Add Content-Type HTTP header with 'application/yang-data+json' using -H 'Content-Type:
application/yang-data+json'
B. Use -u cisco:cisco instead of -u 'cisco:cisco'
C. Change the request method from -X "GET" to-X' POST".
D. Remove the -H 'Accept: application/yang-data+json' HTTP header because it is not required.
Correct Answer: B
QUESTION 41
A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly.
Which action organizes the code?
A. Refactor the code by removing any unnecessary tests
B. Using functions, rewrite any pieces of code that are repeated
C. Reverse engineer and rewrite the code logic

D. Modify the code to use loops
Correct Answer: B
QUESTION 42
Refer to the exhibit. The Python interpreter and the Cisco Python SDK are available by default in the Cisco NX-OS Software. The SDK documentation shows how the
clid() API can be used when working with JSON and XML.
What are two effects of running the script? (Choose two.)

A. configure interlace loopback 5
B. issue shutdown on interface loopback 5
C. show only the interfaces in the up status
D. show only the interfaces in admin shut status
E. show details for the TABLE interface
Correct Answer: AC
QUESTION 43
Refer to the exhibit. Which two statements describe the configuration of the switch after the Ansible script is run? (Choose two.)

A. Traffic on port 0/2 and 0/3 is connected to port 0/6.
B. Traffic from ports 0/2 to 0/5 can flow on port 0/1 due to the trunk.
C. Traffic can flow between ports 0/2 to 0/5 due to the trunk on port 0/1.
D. GigabitEthernet0/2 and GigabitEthernet0/3 are access ports for VLAN 6.
E. GiabitEthernet0/1 is left unconfigured.
Correct Answer: BD
QUESTION 44
What are two advantages of the Model-view-controller software design pattern? (Choose two.)
A. simplifies network automation
B. allows for multiple views of the same model
C. makes code easier to deploy using Cl/CD pipelines
D. reduces need for error handling
E. separates responsibilities of the code, which makes future modifications easier
Correct Answer: BE
QUESTION 45
What is the benefit of edge computing?
A. It reduces network latency by moving processing closer to the data source.
B. It simplifies security as devices and processing are brought closer together
C. It removes the need for centralized data processing.
D. It reduces data velocity from devices or other data sources.
Correct Answer: A
QUESTION 46
The Cisco APIC REST API supports which two methods'? (Choose two.)
A. POST
B. PATCH
C. PUT
D. OPTIONS
E. GET

F. RESET
Correct Answer: AE
QUESTION 47
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
Correct Answer: BC
QUESTION 48
Which type of threat occur when an attacker can send hostile data to an interpreter within an application?
A. Cross-site scripting
B. Sensitive data exposure
C. Broken authentication
D. Injection
Correct Answer: D
QUESTION 49
Refer to the exhibit. What is the effect of this Ansible playbook on an IOS router?

A. A new running configuration is pushed to the IOS router.
B. The current running configuration of the IOS router is backed up.
C. The start-up configuration of the IOS router is copied to a local folder.
D. A new start-up configuration is copied to the IOS router.
Correct Answer: B
QUESTION 50
Which two statement describe the role of an artifact repository in a CI/CD pipeline? (Choose two.)
A. An artifact repository allows to compare and merge changes in the source code of files involved in a build process.
B. An artifact repository is needed only for CI/CD pipeline executed on a public cloud infrastructure.
C. An artifact repository provides traceability, search, and management of binary files.
D. An artifact repository is needed only for managing open source software.

E. An artifact repository stores files needed and generated during the build process.
Correct Answer: CE
QUESTION 51
What is the purpose of the Cisco VIRL software tool?
A. To verify configurations against compliance standards
B. To simulate and model networks
C. To automate API workflows
D. To test performance of an application
Correct Answer: B
QUESTION 52
Which detail is included in a routing table?
A. IP protocol
B. Broadcast address
C. TCP or UDP port number
D. Destination next hop or outgoing interface
Correct Answer: D
QUESTION 53
Which statement about authentication a RESTCONF API session with a router that runs Cisco IOS XE software is true?
A. OAuth must be used.
B. A token must be retrieved and the associated string must be embedded in the X-Auth-Token header.
C. Basic authentication must be used.
D. No authentication is required.
Correct Answer: C
QUESTION 54
Which mechanism is used to consume a RESTful API design when large amounts of data are returned?
A. Data sets
B. Scrolling

C. Blobs
D. Pagination
Correct Answer: D
QUESTION 55
Drag and Drop Questions
Drag and drop the network component names from the left onto the correct descriptions on the right. Not all options are used.

A.
Correct Answer: A
QUESTION 56
FILL BLANK
Fill in the blanks to complete the Python script to retrieve a list of network devices using the Cisco DNA Center API.
my_token=
`eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzl1NiJ9.ey.JzdWloOil1ZDE0OWZkMjhlZTY2 MmQ3NGM5YzE5ZTliLmYzMCLslmV4CcCI6MTU3MjM3ODE%
MCwidXNlcm5hbWUiOiJraX N370940885.zhK5LPQd501ZUpZI0IH_qrgOXttlNbxSFFF7JOEtRls'
import requests
url = "https://myDNAserver/dna/intent/api/v1/network-device" payload = {}
headers = {`x-auth-token': my_token}
}
response = requests.request( _______________________ , url, headers = _________________________, data = _______________________ ) print

(response.text.encode(`utf8'))
A. Answer: See explanation below.
Explanation:
response = requests.request( "GET" , url,
headers = headers, data = payload )
https://2.python-requests.org/en/master/api/#requests.request
Correct Answer: A
QUESTION 57
Which command tests a REST API?
A. nc
B. tcpdump
C. curl
D. telnet
Correct Answer: C
QUESTION 58
What is the purpose of a MAC address?
A. To uniquely identify a router in a LAN
B. To uniquely identify a network interface in a LAN
C. To uniquely identify a device on the internet
D. To uniquely identify a switch in a LAN
Correct Answer: B
QUESTION 59
Which way should be used to safely the API keys?
A. In an environment variable unique to the system database
B. Encrypted in a configuration file that is separate from the code
C. Encrypted in the code in a function
D. Plain text in the code as a constant
Correct Answer: B

QUESTION 60
Refer to the exhibit. What caused the error in this API request?
A. The API resource does not support the POST operation

B. The API resource does not support JSON format payloads.
C. The submitted JSON payload includes a field that is not supported by the API resource.
D. The submitted JSON payload has a formatting issue
Correct Answer: D
QUESTION 61
Refer to the exhibit. The definition of the YANG module and a RESTCONF query sent to a Cisco IOS XE device is shown.
Which statement is correct if the RESTCONF interface responds with a 204 status code?
A. The query retrieved the logging severity level.
B. The query updated the logging severity level or created it if not present on the device
C. The query failed at retrieving the logging severity level
D. The query failed to set the logging severity level due to an invalid.
Correct Answer: B

QUESTION 62
Which two NETCONF operations cover the RESTCONF GET operation? (Choose two.)
A. <get>
B. <edit>
C. <get-update>
D. <modify-config>
E. <get-config>
Correct Answer: AE
QUESTION 63
Which product provides network controller-level management features?
A. Cisco DNA Center
B. Cisco NX-OS
C. Cisco UCS Manager
D. Cisco ISE
Correct Answer: A
QUESTION 64
Drag and Drop Question
Refer to the exhibit.

Drag and drop the descriptors from the left onto the correct parts of the API request and response on the right.

A.
Correct Answer: A
QUESTION 65
Drag and drop the element of the Finesse API on the left onto the description of its functionally on the right.

A.
Correct Answer: A
QUESTION 66
FILL BLANK

Fill in the blank to complete the query parameter and value so that the result set is returned in reverse chronological order (most recent first) based on when
messages were entered.
HTTP GET /v1/rooms ________________

Explanation:
GET/v1/rooms ?sortBy=lastactivity
https://developer.webex.com/docs/api/v1/rooms/list-rooms
Correct Answer: A
QUESTION 67
Which encoding does NETCONF is Cisco IOS XE Software support?
A. JASON AND XML
B. YAML
C. JSON
D. XML
Correct Answer: D
QUESTION 68
RESTCONF supports which three methods? (Choose three.)
A. lock
B. patch
C. put
D. get-config
E. get
F. edit-config
Correct Answer: BCE
QUESTION 69
Which platform is run directly using a hypervisor?
A. Virtual machines
B. Bare metal systems
C. Containers
D. Applications
Correct Answer: A

QUESTION 70
Which is an advantage of using network programmability?
A. It removes CLI access for devices.
B. It provides for more scalable and replicable network provisioning.
C. Manual configuration is faster.
D. No cloud abstraction occurs.
Correct Answer: B
QUESTION 71
Refer to the exhibit. What is the action of the Bash script that is shown?
A. The script waits until input is entered. If the directory exists, the script goes into it until there is no directory with the same name, then it creates a new directory.
B. The script goes into the directory called "$ndir" and makes a new directory called "$ndir"
C. The script waits unit input is entered, then it goes into the directory entered and creates a new directory with the same name.
D. For all directories in the current folder. The script goes into directory and makes a new directory.
Correct Answer: A
QUESTION 72
FILL BLANK
Fill in the blanks to complete the Python script to request a service ticket using the APIC-EM REST API for the user "devnetuser".
import requests
import json
controller = `devnetapi.cisco.com/sandbox/apic_em'

url = "https://" + controller + "api/va/ticket"
payload = {`username': `_________________', `password': `370940885'} header = {`Content-type': `application.json'}
response = _______________________.post(url, data=json.dumps(payload),
headers= ______________________, verify=False)
r_json = response.json()
print(r_json)
ticket = r_json["response"]["serviceTicket"]
print(ticket)
A. Answer: See explanation below
Explanation:
devnetuser
requests
header
Reference: https://developer.cisco.com/docs/apic-em/#!hello-world
Correct Answer: A
QUESTION 73
Drag and drop the network automation interfaces from the left onto the transport protocols that they support on the right.

A.
Correct Answer: A
QUESTION 74
Drag and drop the descriptions from the left onto the correct application deployment models on the right.

A.
Correct Answer: A
QUESTION 75
You are developing a YANG-based policy model to encode the type of entity that is connected to a given interface, such as partner, supplier, customer, or distributor.
Which YANG statement limits any configuration action?
A. when
B. case

C. enumeration
D. contains
Correct Answer: A
QUESTION 76
Which two network configuration protocols use XML as a data representation format? (Choose two.)
A. NETCONF
B. CORBA
C. TOSGA
D. SNMP
E. RESTCONF
Correct Answer: AE
QUESTION 77
What are two advantages of version control software? (Choose two.)
A. It supports tracking and comparison of changes in binary formate files.
B. It allows old versions of packaged applications to be hosted on the Internet
C. It provides wiki collaboration software for documentation.
D. It supports comparisons between revisions of source code files.
E. It allows new team members to access the current code and history.
Correct Answer: DE
QUESTION 78
Which description of a default gateway if true?
A. It is a device that receives IP packets that have no explicit next-hop in the routing table.
B. It is a feature that translates between public and private addresses.
C. It is a security feature that denies certain traffic.
D. It is a device that receives Layer 2 frames with an unknown destination address.
Correct Answer: A
QUESTION 79
Which two descriptions can be given to an application that is interacting with a webhook? (Choose two.)

A. Processor
B. Codec
C. Listener
D. Receiver
E. Transaction monitor
Correct Answer: CD
QUESTION 80
Which action resolves a 401 error in response to an HTTP GET that is issued to retrieve a configuration statement using RESTCONF on a CSR 1000V?
A. Change the HTTP method to PUT.
B. Change the transport protocol to HTTPS.
C. Check the MIMF types in the HTTP headers.
D. Check the authentication credentials.
Correct Answer: D
QUESTION 81
FILL BLANK
Fill in the blanks to complete the statement.
Given a username of "devnet" and a password of "cisco123", applications must create a base64 encoding of the string "________________" when sending HTTP
requests to an API that uses _______________ authentication.
Explanation:
devnet:cisco123
Basic
https://www.cisco.com/c/en/us/td/docs/net_mgmt/elastic_services_controller/4- 1/install/guide/Cisco-Elastic-Services-Controller-Install-Upgrade-Guide-4-1/Cisco-
Elastic- Services-Controller-Install-Upgrade-Guide-3-0_chapter_01011.html
Correct Answer: A
QUESTION 82

Drag and drop the code from the left onto the item numbers on the right to complete to Meraki python script shown in the exhibit.

A. post

base_url
organizations
networks
api_key
application/json
data
network_name
Correct Answer: A
QUESTION 83
Drag and drop the Docker file instructions from the left onto the correct descriptions on the right.
Not all options are used.

A.
Correct Answer: A
QUESTION 84
Which communication mechanism does NETCONF use?
A. SOAP over HTTPS
B. YAML over SSH
C. YAML over HTTPS
D. RPC over SSH
Correct Answer: D
QUESTION 85
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.

Correct Answer: B
QUESTION 86
Which action does the Git command git merge allow the development to perform?
A. Combine multiple sequences of commits into one unified history
B. Push changes to the remote repository
C. Switch between branches
D. Create, list, rename, and delete branches
Correct Answer: A
QUESTION 87
Refer to the exhibit. A REST API returns this JSON output for a GET HTTP request, which has been assigned to a variable called "vegetables". Using Python, which
output is the result of this command?
print(filter(lambda 1: 1[ `type' ] == `fruit', vegetables) [0][`items'][0] [`items'][0])

A. Lettuce
B. Kiwi
C. [`kiwi', `grape']
D. {`color': `green', `items': [`kiwi', `grape']}
Correct Answer: B
QUESTION 88
Which status code is used by a REST API to indicate that the submitted payload is incorrect?
A. 400
B. 403
C. 405
D. 429
Correct Answer: A
QUESTION 89
Refer to the exhibit. What is the function of the python script?
A. Count and print the total number of available devices.
B. Iterate over a list of network devices and write all device names and management IP addresses to an output file.
C. Iterate over a list of network devices and write all device type and associated management IP address.
D. For each device that is returned, display the device and, for each device, print the device name and management IP address.
E. Loop through the returned list of network devices and, for each device, print the device name management IP address.

Correct Answer: E
QUESTION 90
Which device is a system that monitors and controls incoming and outgoing network traffic based on predetermined security rules?
A. Switch
B. Router
C. Firewall
D. Load balancer
Correct Answer: C
QUESTION 91
What are two security benefits of a Docker-based application?
A. easier to patch because Docker containers include only dependencies that the application requires
B. prevents information leakage that can occur when unhandled exceptions are returned in HTTP responses
C. allows for separation of application that traditionally run in the same host
D. natively secures access to secrets that are used by the running application
E. guarantees container images are secured and free of vulnerabilities Answer:
Correct Answer: AC
QUESTION 92
Refer to the exhibit. Given the API documentation for the UCS SDK Python class, Ucsl-landle, which code snippet creates a handle instance?

C.
D.
Correct Answer: B
QUESTION 93
Drag and Drop the Bash commands from the left onto the correct actions on the right.

A.
Correct Answer: A
QUESTION 94

Drag and drop the functionalities from the left onto the correct networking devices on the right.

A.
Correct Answer: A
QUESTION 95

Drag and drop the variables from the left onto the item numbers on the right that match the missing assignments in the exhibit.

A.
Explanation:
https://medium.com/@fotios.floros/linux-backup-script-1722cc9c2bf6 (use tar in order to create your backup file)
Correct Answer: A
QUESTION 96
Which two parts are required for a RESTful API call? (Choose two.)
A. resource
B. parameter
C. method
D. query
E. fragment
Correct Answer: AC
QUESTION 97
FILL BLANK
Fill in the blanks to complete the statement.
Cisco DNA Center provides the capability to send an HTTP _______________ request to the API endpoint https://DNA-C_API_ADDRESS/api/v1/network-device/and
receive the network _______________ list in _______________ format.
Explanation:

GET
device
JSON
Correct Answer: A
QUESTION 98
Drag and drop the requests from the left into the correct order on the right to create and check the path trace between two devices using Cisco DNA center API.
A. POST /dna/system/api/v1/auth/token
GET /api/v1/network-device/ and choose IP of source and destination devices
POST /api/v1/flow-analysis
GET /api/v1/flow-analysis/{flowAnalysisId}
Correct Answer: A
QUESTION 99
Which YANG statement defines a block of other statements that can be easily referenced in other areas of a data model?
A. grouping

B. container
C. submodule
D. module
Correct Answer: D
QUESTION 100
Which two operations are defined in the NETCONF base protocol? (Choose two.)
A. <open-session>
B. <get-config>
C. <close-session>
D. <put>
E. <remove-config>
Correct Answer: BC
QUESTION 101

Drag and drop the code from the left code from the left onto the item number on the right to complete the Meraki code to obtain a list of client which have used this
network.

Correct Answer: A
QUESTION 102
Drag and drop the HTTP status codes from the left onto the correct descriptions on the right.

A.
Correct Answer: A
QUESTION 103
Drag and drop elements of the RESTCONF protocol stack from the left onto the correct description on the right. Not all elements on the left are used.

A.
Correct Answer: A
QUESTION 104
Which two elements are foundational principles of DevOps? (Choose two.)
A. designing applications as microservices
B. encouraging containers for the deployment of applications
C. organizing cross-functional teams over organizational silos
D. optimizing the cost of infrastructures
E. automating over documenting

Correct Answer: CE
QUESTION 105
Which two use cases are supported by Meraki APIs? (Choose two.)
A. Retrieve live streams from a Meraki Camera.
B. Build a custom Captive Portal for Mobile Apps.
C. Configure network devices via the Dashboard API.
D. Build location-aware apps from Wi-Fi and LoRaWAN devices.
E. Deploy applications onto the devices.
Correct Answer: AC
QUESTION 106
Package updates from a local server fail to download.
However, the same updates work when a much slower external repository is used.
Way are local updates failing?
A. The update utility is trying to use a proxy to access the internal resource.
B. The Internet connection is too slow.
C. The Internet is down at the moment, which causes the local server to not be able to respond.
D. The server is running out of disk space.
Correct Answer: A
QUESTION 107
What should a CI/CD pipeline aim to achieve?
A. to allow manual testing before deployment
B. to require minimal manual interaction
C. to support new deployments on a fixed monthly schedule
D. to provide a documented process for feedback
Correct Answer: B
QUESTION 108
What are two benefit of managing network configuration via APIs? (Choose two.)
A. configuration on devices becomes less complex

B. more security due to locking out manual device configuration
C. increased scalability and consistency of network changes
D. eliminates the need of legacy management protocols like SNMP
E. reduction in network changes performed manually
Correct Answer: CE
QUESTION 109
Drag and drop the HTTP methods from the left onto their generally accepted corresponding create, read, update, and delete operations on the right.

A.
Correct Answer: A
QUESTION 110
FILL BLANK
Fill in the blanks to complete the cURL command that invokes a RESTful API to retrieve a resource in JSON format using OAuth.
curl X ____________ -H " __________: application/json" -H " _______: Bearer AbCdEf123456" https://localhost/api/myresource
Explanation:
GET
Accept

Authorization
Reference:
https://webcache.googleusercontent.com/search?q=cache:Se6d2trvMsEJ:
https://blogs.cisco.com/developer/security-api-best-
practices+&cd=4&hl=en&ct=clnk&gl=pk&client=firefox-b-d
Correct Answer: A
QUESTION 111
What is the Git command to delete a local branch named "experiment" without a warning?
A. git branch -n experiment
B. git branch -rm experiment
C. git branch -f experiment
D. git branch -D experiment
Correct Answer: D
QUESTION 112
On which port does NETCONF operate by default?
A. 23
B. 443
C. 822
D. 830
Correct Answer: D
QUESTION 113
Which two concepts describe test-driven development? (Choose two.)
A. It enables code refactoring.
B. Write a test before writing code.
C. Implementation is driven by incremental testing of release candidates.
D. User acceptance testers development the test requirements.
E. Tests are created when code is ready for release.
Correct Answer: BE

QUESTION 114
Which library or platform can be used to leverage APIC REST API easily?
A. acitoolkit
B. COBRA
C. NX-API
D. APIC-EM
Correct Answer: A
QUESTION 115
On which port does NETCONF operate by default?
A. 23
B. 443
C. 822
D. 830
Correct Answer: D
QUESTION 116
Which two elements are foundational principles of DevOps? (Choose two.)
A. organizing cross-functional teams over organizational silos
B. designing applications as microservices
C. encouraging containers for the deployment of applications
D. automating over documenting
E. optimizing the cost of infrastructures
Correct Answer: AD
QUESTION 117
What are two benefits of managing network configuration via APIs? (Choose two.)
A. more security due to locking out manual device configuration
B. configuration on devices becomes less complex
C. eliminates the need of legacy management protocols like
D. reduction in network changes performed manually
E. increased scalability and consistency of network changes

Correct Answer: DE
QUESTION 118
FILL BLANK
Fill in the blanks to complete the cURL command that invokes a RESTful API to retrieve a resource in JSON format using OAuth.
curl X ____________ -H " __________: application/json" -H " _______: Bearer AbCdEf123456" https://localhost/api/myresource
Explanation:
GET
Accept
Authorization
Reference:
https://webcache.googleusercontent.com/search?q=cache:Se6d2trvMsEJ:https://blogs.cisco.com /developer/security-api-best-practices
+&cd=4&hl=en&ct=clnk&gl=pk&client=firefox-b-d
Correct Answer: A
QUESTION 119
Which model-driven programmability protocol does Cisco IOS XE Software support?
A. gNMI
B. SOAP
C. SSH
D. CORBA
Correct Answer: A
QUESTION 120
FILL BLANK
Fill in the blanks to complete the Python script to update the Webex Teams membership of a room using the Python requests library.
import requests
url =
"https://api.ciscopark.com/v1/memberships/Y2lzY29zcGFyazov371558228INIS
VAvOTJiM2RkOWEtNjc1ZC00YTQxLThjNDEtMmFiZGY4OWY0NGY0OjExNzJkNmYwLTJIYzMT FIOS1Iowi3lwnMmJG3mtjhYTkzNw"

payload = "{n "isModerator": truen}"
headers = {
Àuthorization': `Bearer',
`Content-Type': àpplication/json'
}
response = requests. ___________ ("PATCH", url, headers= ___________, data = ____________ )
print(response.text.encode(ùtf8'))
Explanation:
response = requests.request("PATCH", url, headers= headers, data = payload ) print(response.text.encode(ùtf8'))
Correct Answer: A
QUESTION 121
What is the first development task in test-driven development?
A. Write code that implements a desired function.
B. Write a failing test case for a desired function.
C. Write a passing test case for existing code.
D. Reverse engineer the code for a desired function.
Correct Answer: B
QUESTION 122
What are two roles of an artifact repository in a CI/CD pipeline? (Choose two.)
A. is required for CI/CD pipelines executed on a public cloud infrastructure
B. is required for managing open source software
C. stores files needed and generated during the build process
D. allows for comparing and merging changes in the source code
E. provides traceability, search, and management of binary files
Correct Answer: CE
QUESTION 123
What are two advantages of YANG-based approaches for infrastructure automation? (Choose two.)
A. directly maps to JavaScript

B. multi-platform vendor abstraction
C. designed to reflect networking concepts
D. compiles to executables that run on network devices
E. command line driven interface
Correct Answer: BC
QUESTION 124
what is an advantage of a version control system?
A. forces the practice of trunk-based development
B. prevents over-writing code or configuration files
C. facilitates resolving conflicts when merging code
D. ensures that unit tests are written
Correct Answer: C
QUESTION 125
How is a branch called "my-bug-fix" started to develop a fix needed in a product?
A. git branch -b my-bug-fix
B. git checkout -b my-bug-fix
C. git checkout my-bug-fix
D. git branch my-bug-fix
Correct Answer: B
QUESTION 126
Which service provides a directory lookup for IP addresses and host names?
A. DNS
B. DHCP
C. SNMP
D. NAT
Correct Answer: A
QUESTION 127
A small company has 5 servers and 50 clients. What are two reasons an engineer should spilt this network into separate client and server subnets? (Choose two)

A. Internet access to the servers will be denied on the router.
B. A router will limit the traffic types between the clients and servers.
C. Subnets will split domains to limit failures.
D. A router will bridge the traffic between clients and servers.
E. Subnets provide more IP address space for clients and servers.
Correct Answer: CE
QUESTION 128
Which device is used to transport traffic from one broadcast domain to another broadcast domain?
A. load balancer
B. layer 2 switch
C. router
D. proxy server
Correct Answer: C
QUESTION 129
Refer to the exhibit. What is the value of the node defined by this YANG structure?

A.
B.
C.
D.
Correct Answer: D
QUESTION 130
Refer to the exhibit. What is the result of executing this Ansible playbook?

A. The playbook copies a new start-up configuration to CISCO_ROUTER_01.
B. The playbook backs up the running configuration of CISCO_ROUTER_01.
C. The playbook backs up the start-up configuration of C1SCO_ROUTER_01.
D. The playbook copies a new running configuration to CISCO_ROUTER_01.
Correct Answer: C
QUESTION 131
A 401 HTTP response code is returned when calling a REST API. What is the error state identified by this response code?
A. The server cannot process the request as it has detected an issue in the request syntax or body.
B. The server accepted the request but the client is not authorized for this content.
C. The request has not been accepted because it requires authentication.
D. The server cannot find the requested resource because the path specified is incorrect.
Correct Answer: C

QUESTION 132
Users cannot access a webserver and after the traffic is captured. the capture tool shows an ICMP packet that reports "time exceeded in-transit". What is the cause
of this webserver access issue?
A. A router along the path is misrouting the packets in a wrong direction.
B. A router along the path has the wrong time.
C. The server is too far away and the packets require too much time to reach it
D. The server is too loaded and the connection could not be handled in time
Correct Answer: A
QUESTION 133
Refer to Exhibit. Which JSON is equivalent to the XML-encoded data?

C.
D.
Correct Answer: C
QUESTION 134

Which platform is run directly using a hypervisor?
A. bare metal systems
B. containers
C. virtual machines
D. applications
Correct Answer: C
QUESTION 135
What is the purpose of a firewall in application deployment?
A. adds TLS support to an application that does not support it natively
B. forwards traffic to a pool of instances of the application
C. provides translation for an application's hostname to its IP address
D. limits traffic to only ports required by the application
Correct Answer: D
QUESTION 136
What is used in Layer 2 switches to direct packet transmission to the intended recipient?
A. spanning tree
B. IPv4 address
C. IPv6 address
D. MAC address
Correct Answer: D
QUESTION 137
What operation is performed with YANG model-driven programmability in NX-OS?
A. configure a device with native and OpenConfig-based models
B. send CLI commands to a device and retrieve output in JSON format
C. run Linux commands natively on the device
D. bootstrap a device that has a factory-default configuration
Correct Answer: A

QUESTION 138
Users cannot access a webserver and after the traffic is captured, the capture too* shows an ICMP packet that reports "communication administratively prohibited"
What Is the cause of this webserver access Issue?
A. An access list along the path is blocking the traffic
B. The traffic is not allowed to be translated with NAT and dropped.
C. Users must authenticate on the webserver to access It
D. A router along the path is overloaded and thus dropping traffic
Correct Answer: A
QUESTION 139
How does requesting a synchronous API operation differ from requesting an asynchronous API operation?
A. clients poll for the status of the execution of operations
B. clients subscribe to a webhook for operation results
C. clients can access the results immediately
D. clients receive responses with a task id for further processing
Correct Answer: C
QUESTION 140
Drag and drop the capability on the left onto the Cisco compute management platform that supports the capability on the right.

A.
Correct Answer: A
QUESTION 141
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' ''
A. ls
$TARGET_DIR
mv
Correct Answer: A
QUESTION 142

Drag and drop the function on the left onto the type of plane that handles the function on the right.

A.
Correct Answer: A
QUESTION 143
Drag and drop the Python code from the left onto the correct step on the right to call a REST API.

A.
Correct Answer: A
QUESTION 144
What is a tenet of test-driven development?
A. write documentation for tests
B. write tests after adding new blocks of code

C. write and run tests before writing new code
D. run tests after writing new code
Correct Answer: C
QUESTION 145
Which two protocols are used to apply a configuration change on a Cisco IOS XE device? (Choose two)
A. CCX
B. RESTCONF
C. NETCONF
D. HSRP
E. CDP
Correct Answer: BC
QUESTION 146
Which network device monitors incoming and outgoing traffic and decides whether to allow or block specific traffic based on a defined set of rules?
A. switch
B. load balancer
C. reverse proxy
D. firewall
Correct Answer: D
QUESTION 147
Which HTTP status Code means that the server cannot or will not process the request because of perceived client error?
A. 100
B. 203
C. 303
D. 400
Correct Answer: D
QUESTION 148
The project is migrated to a new codebase, the "old_project" directory must be deleted. The directory has multiple read-only files, and it must be deleted recursively
without prompting for confirmation. Which bash command must be used?

A. rm -rf old_project
B. rm -r old_project
C. rmdir -p old_project
D. rmdir old_project
Correct Answer: A
QUESTION 149
A REST API service requires authentication based on the username and password. The user "john" has the password "384279060" and the Base64 encoding of
those credentials is "am9objowMTIzNDU2Nzg=".
Which method completes an authentication request?
A. The header must include:
Authorization: Bearer am9obJowMTlzNDU2Nzg=
B. The payload must include:
Authorization: Bearer am9objowMTIzNDU2Nzg=
C. The payload must include.
Authorization: Basic am9objowMTlzNDU2Nzg=
D. The header must include:
Authorization: Basic am9objowMTlzNDU2Nzg=
Correct Answer: D
QUESTION 150
A Company is looking for cloud deployment which will use the on-premise infrastructure, is user self-service, and easy to scale. Which cloud solution should be
selected for these requirements?
A. multi
B. public
C. private
D. hybrid
Correct Answer: C
QUESTION 151
What is a function of the default gateway in a network?
A. to drop traffic that is destined to the default gateway

B. to drop traffic that is not destined to the default gateway
C. to forward traffic to the same subnet
D. to forward traffic to different subnets
Correct Answer: D
QUESTION 152
A developer needs to prepare the file README.md in the working tree for the next commit operation using Git. Which command needs to be used to accomplish
this?
A. git add README.md staging
B. git -a README.md
C. git add README.md
D. git commit README.md
Correct Answer: C
QUESTION 153
Which response status code is used by a RESTful interface to indicate successful execution of a request?
A. 200
B. 404
C. 405
D. 500
Correct Answer: A
QUESTION 154
In which situation would an edge computing solution be used?
A. where low latency is needed
B. where high CPU throughput is needed
C. where fast memory is needed
D. where high disk space is needed
Correct Answer: A
QUESTION 155
What are the two purposes for using a VLAN in a network? (Choose two)

DEVASC_200-901_July_2023-v1.2.pdf

DEVASC_200-901_July_2023-v1.2.pdf

Recommended

Recommended

More Related Content

Similar to DEVASC_200-901_July_2023-v1.2.pdf

Similar to DEVASC_200-901_July_2023-v1.2.pdf (20)

Recently uploaded

Recently uploaded (20)

DEVASC_200-901_July_2023-v1.2.pdf