quiz – تعلم الشبكات

1. Which requirement for an Ansible-managed node is true?

A.It must be a Linux server or a Cisco device

B.It must have an SSH server running

C. It must have an Ansible Tower installed

D. It must support ad hoc commands.

Question 1 of 35

2. Which statement about TLS is true when using RESTCONF to write configurations on network devices?

A.It is provided using NGINX acting as a proxy web server

B.It required certificates for authentication

C.It is used for HTTP and HTTPs requests

D.It is no supported on Cisco devices

Question 2 of 35

3. Which two operations are valid for RESTCONF? (Choose two)

A.PATCH

B.PULL

C.PUSH

D.ADD

E.REMOVE

F.HEAD

Question 3 of 35

4. Which exhibit displays a valid JSON file?

A.{ “hostname”: “edge_router_1” “interfaces”: { “GigabitEthernet1/1” “GigabitEthernet1/2” “GigabitEthernet1/3” } }

B.{ “hostname”: “edge_router_1”, “interfaces”: [ “GigabitEthernet1/1”, “GigabitEthernet1/2”, “GigabitEthernet1/3” ] }

C.{ “hostname”: “edge_router_1” “interfaces”: { “GigabitEthernet1/1”, “GigabitEthernet1/2”, “GigabitEthernet1/3”, }, }

D.{ “hostname”: “edge_router_1” “interfaces”: [ “GigabitEthernet1/1” “GigabitEthernet1/2” “GigabitEthernet1/3” ] }

Question 4 of 35

5. Which method creates an EEM applet policy that is registered with EEM and runs on demand or manually?

A.event manager applet ondemand event register action 1.0 syslog priority critical msg ‘This is a message from ondemand’

B. event manager applet ondemand action 1.0 syslog priority critical msg ‘This is a message from ondemand’

C.event manager applet ondemand event none action 1.0 syslog priority critical msg ‘This is a message from ondemand’

D.event manager applet ondemand event manual action 1.0 syslog priority critical msg ‘This is a message from ondemand’

Question 5 of 35

6. What does this EEM applet event accomplish?

“event snmp oid 1.3.6.1.3.7.1.5.1.2.4.2.9 get-type next entry-op go entry-val 75 poll-interval 5”

A.It issues email when the value is greater than 75% for five polling cydes

B.Upon the value reaching 75%, a SNMP event is generated and sent to the trap server

C.It presents a SNMP variable that can be interrogated

D.It reads an SNMP variable, and when the value exceeds 75%, it triggers an action GO

Question 6 of 35

7. What is the structure of a JSON web token?

A.three parts separated by dots header payload, and signature

B.three parts separated by dots version header and signature

C.payload and signature

D.header and payload

Question 7 of 35

8. Refer to the exhibit. Which two statements about the EEM applet configuration are true? (Choose two)

event manager applet LARGECONFIG
  event cli pattern "show running-config" sync yes
  action 1.0 puts "Warning! This device has a VERY LARGE configuration 
        and may take some time to process" 
  action 1.1 puts nonewline "Do you wish to continue [Y/N]" 
  action 1.2 gets response 
  action 1.3 string toupper "$response" 
  action 1.4 string match "$_string_result" "Y" 
  action 2.0 if $_string_result eq 1 
  action 2.1 cli command "enable” 
  action 2.2 cli command "show running-config" 
action 2.3 puts $_cli_result 
action 2.4 cli command "exit" 
action 2.9 end

A. The running configuration is displayed only if the letter Y is entered at the CLI

B.The EEM applet runs after the CLI command is executed

C.The EEM applet requires a case-insensitive response

D.The EEM applet runs before the CLI command is executed

Question 8 of 35

9. Refer to the exhibit. Which network script automation option or tool is used in the exhibit?

https://mydevice.mycompany.com/getstuff?queryName=errors&queryResults=yes

A.Python

B.Bash script

C.EEM

D.NETCONF

E.REST

Question 9 of 35

10. Which two protocols are used with YANG data models? (Choose two)

A.TLS

B.NETCONF

C.RESTCONF

D.SSH

E.HTTPS

Question 10 of 35

11. Which protocol does REST API rely on to secure the communication channel?

A.TCP

B.HTTPS

C.SSH

D.HTTP

Question 11 of 35

12. Which JSON syntax is valid?

A.{“switch”:”name”:”dist1″,”interfaces”:[“gig1″,”gig2″,”gig3”]}

B.{“switch”:{“name”:”dist1″,”interfaces”:[“gig1″,”gig2″,”gig3”]}}

C.{‘switch’:(‘name’:’dist1′,’interfaces’:[‘gig1′,’gig2′,’gig3’])}

D.{/”switch/”:{/”name/”:”dist1″,/”interfaces/”:[“gig1″,”gig2″,”gig3”]}}

Question 12 of 35

13. Which statements are used for error handling in Python?

A.catch/release

B.try/except

C.try/catch

D.block/rescue

Question 13 of 35

14. Refer to the exhibit. Which HTTP JSON response does the python code output give?

PYTHON CODE
import requests
import json

url='http://YOURIP/ins'
switchuser='USERID'
switchpassword='PASSWORD'

myheaders={'content-type':'application/json'}
payload={
 "ins_api": {
   "version":"1.0",
   "type":"cli_show",
   "chunk":"0",
   "sid":"1",
   "input":"show version",
   "output_format":"json"
 }
}
response = requests.post(url,data=json.dumps(payload), headers=myheaders,auth=(switchuser,switchpassword)).json()

print(response['ins_api']['outputs'][output']['body']['kickstart_ver_str'])
=================================================================================================================
HTTP JSON Response:
{
 "ins_api": {
  "type": "cli_show",
  "version":"1.0",
  "sid":"eoc",
  "outputs":{
   "output":{
    "input":"show version",
    "msg":"Success",
    "code":"200",
    "body":{
     "bios_ver_str":"07.61",
     "kickstart_ver_str":"7.0(3)I7(4)",
     "bios_cmpl_time":"04/08/2017",
     "kick_file_name":"bootflash:///nxos.7.0.3.I7.4.bin",
     "kick_cmpl_time":"6/14/1970 09:49:04",
     "chassis_id": "Nexus9000 93180YC-EX chassis",
     "cpu_name": "Intel(R) Xeon(R) CPU @1.80GHz",
     "memory": 24633488,
     "mem_type":"kB",
     "rr_usecs":134703,
     "rr_ctime":"Sun Mar 10 15:41:46 2019",
     "rr_reason": "Reset Requested by CLI command reload",
     "rr_sys_ver":"7.0(3)I7(4)",
     "rr_service":"",
     "manufacturer": "Cisco Systems, Inc",
     "TABLE_package_list": {
      "ROW_package_list": {
       "package_id": {}
      }
     }
    }
   }
  }
 }
}

A.7.61

B.KeyError ‘kickstart_ver_str’

C.NameError: name ‘json’ is not defined

D. 7.0(3)I7(4)

Question 14 of 35

15. Which data modeling language is commonly used by NETCONF?

A.YANG

B.HTML

C.XML

D.REST

Question 15 of 35

16. A response code of 404 is received while using the REST API on Cisco UNA Center to POST to this URL

/dna/intent/api/v1 /template-programmer/project

What does the code mean?

A.The client made a request a resource that does not exist

B.The POST/PUT request was fulfilled and a new resource was created, information about the resource is in the response body

C.The request accepted for processing, but the processing was not completed

D.The server has not implemented the functionality that is needed to fulfill the request

Question 16 of 35

17. Which HTTP status code is the correct response for a request with an incorrect password applied to a REST API session?

A.HTTP Status Code 302

B.HTTP Status Code 504

C.HTTP Status Code 200

D.HTTP Status Code 401

Question 17 of 35

18. In which part of the HTTP message is the content type specified?

A.body

B.HTTP method

C.URI

D.header

Question 18 of 35

19. What do Cisco DNA southbound APIs provide?

A.NETCONF API interface for orchestration communication

B.RESTful API interface for orchestrator communication

C.Interface between the controller and the consumer

D.Interface between the controller and the network devices

Question 19 of 35

20. Which method displays text directly into the active console with a synchronous EEM applet policy?

A.event manager applet boom event syslog pattern ‘UP’ action 1.0 string ‘logging directly to console’

B.event manager applet boom event syslog pattern ‘UP’ action 1.0 gets ‘logging directly to console’

C.event manager applet boom event syslog pattern ‘UP’ action 1.0 syslog priority direct msg ‘log directly to console’

D.event manager applet boom event syslog pattern ‘UP’ action 1.0 puts ‘logging directly to console’

Question 20 of 35

21. Refer to the exhibit. What is the JSON syntax that is formed the data?

Name is Bob Johnson
Age is 76
Is aliveFavorite foods are:
+ Cereal
+ Mustard
+ Onions

A.{“Name”:”Bob Johnson”,”age”:76,”alive”:true,”favorite foods”:[“Cereal”,”Mustard”,”Onions”]}

B.Name: Bob, Johnson, Age: 76, Alive: true, Favourite Foods. [Cereal, “Mustard”, “Onions}}

C.Name’, ‘Bob Johnson,’ ‘Age’, 76, ‘Alive’, true, ‘favourite Foods’ ‘Cereal Mustard’, ‘Onions’}

D.Name”, “Bob Johnson”, “Age”, 76, “Alive”, true, “favourite Foods”, [“Cereal, “Mustard”, Onions”}}

E.Name”, “Bob Johnson”, “Age”: Seventysix, “Alive” true, “favourite Foods” ,[Cereal” “Mustard” “Onions”}}

Question 21 of 35

22. Which statement about agent-based versus agentless configuration management tools is true?

A.Agent-based tools do not require installation of additional software packages on the slave nodes.

B.Agentless tools use proxy nodes to interface with slave nodes.

C.Agentless tools require no messaging systems between master and slaves.

D.Agent-based tools do not require a high-level language interpreter such as Python or Ruby on slave nodes.

Question 22 of 35

23. What is a benefit of data modeling languages like YANG?

A.They provide a standardized data structure, which results in configuration scalability and consistency.

B.They create more secure and efficient SNMP OIDs.

C.They make the CLI simpler and more efficient.

D.They enable programmers to change or write their own application within the device operating system.

Question 23 of 35

24. Which variable in an EEM applet is set when you use the sync yes option?

A.$_cli_result

B.$_result

C.$_exit_status

D.$_string_result

Question 24 of 35

25. Which protocol infers that a YANG data model is being used?

A.NX-API

B.SNMP

C.REST

D.RESTCONF

Question 25 of 35

26. Which algorithms are used to secure REST API from brute attacks and minimize the impact?

A.MD5 algorithm-128 and SHA-384

B.PBKDF2, BCrypt, and SCrypt

C.SHA-512 and SHA-384

D.SHA-1, SHA-256, and SHA-512

Question 26 of 35

27. A network administrator is preparing a Python script to configure a Cisco IOS XE-based device on the network. The administrator is worried that colleagues will make changes to the device while the script is running. Which operation of the client manager in prevent colleague making changes to the device while the script is running?

A.m.lock(config=’running’)

B.m.freeze(config=’running’)

C. m.freeze(target=’running’)

D. m.lock(target=’running’)

Question 27 of 35

28. Which method of account authentication does OAuth 2.0 within REST APIs?

A.basic signature workflow

B. cookie authentication

C.access tokens

D.username/role combination

Question 28 of 35

29. Which characteristic distinguishes Ansible from Chef?

A.Ansible pushes the configuration to the client. Chef client pulls the configuration from the server

B.The Ansible server can run on Linux, Unix or Windows. The Chef server must run on Linux or Unix

C.Ansible lacks redundancy support for the master server. Chef runs two masters in an active/active mode

D.Ansible uses Ruby to manage configurations. Chef uses YAML to manage configurations

Question 29 of 35

30. Refer to the exhibit. An engineer is using XML in an application to send information to a RESTCONF-enabled device. After sending the request, the engineer gets this response message and a HTTP response code of 400. What do these responses tell the engineer?

A.The Accept header sent was application/xml

B.JSON body was used

C.POST was used instead of PUT to update

D.The Content-Type header sent was application/xml.

Question 30 of 35

31. How is a data modeling language used?

A.To represent finite and well-defined network elements that cannot be changed

B.To provide human readability to scripting languages

C.To enable data to be easily structured, grouped validated, and replicated

D.To model the flows of unstructured data within the infrastructure

Question 31 of 35

32. Refer to the exhibit. What does the error message relay to the administrator who is trying to configure a Cisco IOS device?

A.The NETCONF running datastore is currently locked.

B.The device received a valid NETCONF request and serviced it without error.

C.A NETCONF message with valid content based on the YANG data models was made, but the request failed.

D.A NETCONF request was made for a data model that does not exist.

Question 32 of 35

33. Refer to the exhibit. What does the snippet of code achieve?

A.It creates an SSH connection using the SSH key that is stored and the password is ignored

B.It opens a tunnel and encapsulates the login information, if the host key is correct

C.It creates a temporary connection to a Cisco Nexus device and retrieves a token to be used for API calls

D.It opens an ncclient connection to a Cisco Nexus device and maintains it for the duration of the context

Question 33 of 35

34. What is used to validate the authenticity of the client and is sent in HTTP requests as a JSON object?

A.JWT

B.TLS

C.HTTPS

D.SSH

Question 34 of 35

35. Refer to the exhibit.

Make is Gocar
Model is Zoom

Features are
+ Power Windows
+ Manual Drive
+ Auto AC

What is the JSON syntax that is formed from the data?

A.(“Make”:[ “Gocar”, “Model”: “Zoom”], Features”: [“Power Windows”, “Manual Drive”, “Auto AC”]}

B. “Make”: “Gocar”, “Model”: “Zoom”, “Features”: [“Power Windows”, “Manual Drive”, “Auto AC”]

C. {“Make”: Gocar, “Model”: Zoom, “Features”: Power Windows, Manual Drive, Auto AC}

D.Make”:’Gocar, “Model’: “Zoom”, “Features”: [“Power Windows”, “Manual Dnve”, “Auto AC”]}

Question 35 of 35