350-401 practice questions 331–340

1. Question 331 · 1003 in bank

   Select 2

   What are two benefits of YANG? (Choose two.)

   • AIt enforces the use of a specific encoding format for NETCONF.
   • BIt collects statistical constraint analysis information.
   • CIt enables multiple leaf statements to exist within a leaf list.
   • DIt enforces configuration semantics.
   • EIt enforces configuration constraints.

   Show answer

   Answer: DE

   Explanation

   D. It enforces configuration semantics: YANG provides a structured and standardized way to define the configuration and operational semantics of network devices. It allows for clear and consistent definitions of data models, specifying how configuration elements relate to each other and what their intended behavior is. This helps ensure that network devices are configured correctly and consistently. E. It enforces configuration constraints: YANG allows for the definition of constraints and validation rules on the configuration data. These constraints help ensure that the configuration adheres to specific requirements, such as data type, range, length, and dependencies between configuration elements. By enforcing configuration constraints, YANG helps prevent misconfigurations and improves the overall reliability and stability of the network.

   Source: Adapted from community discussion — ibogovic

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2. Question 332 · 1003 in bank

   DRAG DROP - Drag and drop the characteristics from the left onto the orchestration tools they describe on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   provided answer is correct. On Ansible, HA mode is not meant to run in an active/active or multi-master mode. https://docs.ansible.com/ansible-tower/2.2.0/html/administration/high_availability.html On Puppet, To scale beyond a certain size, or for geographic distribution or disaster recovery, a deployment may warrant having more than one puppet master server. https://docs.huihoo.com/puppet/guides/scaling_multiple_masters.html

   Source: Adapted from community discussion — aohashi

   

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3. Question 333 · 1003 in bank

   

   Refer to the exhibit. After running the code in the exhibit, which step reduces the amount of data that the NETCONF server returns to the NETCONF client, to only the interface's configuration?

   • AUse the Ixml library to parse the data returned by the NETCONF server for the interface's configuration.
   • BCreate an XML filter as a string and pass it to get_config() method as an argument.
   • CCreate a JSON filter as a string and pass it to the get_config() method as an argument.
   • DUse the JSON library to parse the data returned by the NETCONF server for the interface's configuration.

   Show answer

   Answer: B

   Explanation

   First of all, the return data is saved as .xml format; Then it asks to "reduce amount of data returned" means you need to do the filter before data is downloaded, not after. B

   Source: Adapted from community discussion — winder

   References

   • cisco.com documentation

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4. Question 334 · 1003 in bank

   Running the script causes the output in the exhibit. Which change to the first line of the script resolves the error?

   

   • Afrom ncclient import
   • Bimport manager
   • Cfrom ncclient import *
   • Dimport ncclient manager

   Show answer

   Answer: C

   Explanation

   tested - pythonic way is going to be "from X import Y" - I really hate to see peeps losing an easy one if they are coming across this. Only viable options will be "from ncclient import manager" <<---- best choice "from ncclient import *" <<----- alternate A - from ncclient import ------ ( 1/2 command ) B - import manager --------- ( the package name is ncclient not manager ) C - from ncclient import * ---- (correct with "from ncclient import manager" being better) D - import ncclient manager ---- not a pythonic way of importing packages, you can import on same line with a comma for different packages (import ncclient, pprint, paramiko, netmiko, clrprint) --- but you CAN not import a module from a package this way.

   Source: Adapted from community discussion — RickAO76

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5. Question 335 · 1003 in bank

   Select 2

   What are two reasons a company would choose a cloud deployment over an on-prem deployment? (Choose two.)

   • ACloud costs adjust up or down depending on the amount of resources consumed. On-prem costs for hardware, power, and space are on-going regardless of usage.
   • BCloud resources scale automatically to an increase in demand. On-prem requires additional capital expenditure.
   • CIn a cloud environment, the company is in full control of access to their data. On-prem risks access to data due to service provider outages.
   • DIn a cloud environment, the company controls technical issues. On-prem environments rely on the service provider to resolve technical issues.
   • ECloud deployments require long implementation times due to capital expenditure processes. On-prem deployments can be accomplished quickly using operational expenditure processes.

   Show answer

   Answer: AB

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6. Question 336 · 1003 in bank

   Which line must be added in the Python function to return the JSON object {`cat_9k`: `FXS1932Q2SE`}?

   

   • Areturn (json.dumps({d['hostname']: d['serialNumber'] for d in json.loads(test_json)['response']}))
   • Breturn (json.dumps({for d in json.loads(test_json)['response']: d['hostname']: d['serialNumber']}))
   • Creturn (json.loads({d['hostname']: d['serialNumber'] for d in json.dumps(test_json)['response'}))
   • Dreturn (json.loads({for d in json.dumps(test_json)['response']: d['hostname']: d['serialNumber']}))

   Show answer

   Answer: A

   Explanation

   Tested as well, A was the only one that functioned. import json def get_data(): test_json = """ { "response": [{ "managementipAddress": "10.10.2.253", "memorySize": "3398345152", "serialNumber": "FXS1932Q2SE", "softwareVersion": "16.3.2", "hostname": "cat_9k" }], "version": "1.0" } """ return (json.dumps({d['hostname']: d['serialNumber'] for d in json.loads(test_json)['response']})) print(get_data())

   Source: Adapted from community discussion — Jared28

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7. Question 337 · 1003 in bank

   

   Refer to the exhibit. Which code results in the working Python script displaying a list of network devices from the Cisco DNA Center?

   • Anetwork_device_list(dnac[ג€hostג€], dnac[ג€usernameג€],dnac[ג€passwordג€]) login = dnac_login(dnac) print(dnac_devices)
   • Blogin = dnac_login(dnac[ג€hostג€], dnac[ג€usernameג€], dnac[ג€passwordג€]) network_device_list(dnac, login) print(dnac_devices)
   • Clogin = dnac_login(dnac[ג€hostג€], dnac[ג€usernameג€], dnac[ג€passwordג€]) network_device_list(dnac, login) for item in dnac_devices: print(dnac_devices.item)
   • Dnetwork_device_list(dnac[ג€hostג€], dnac[ג€usernameג€], dnac[ג€passwordג€]) login = dnac_login(dnac) for item in dnac_devices: print(dnac_devices.item)

   Show answer

   Answer: B

   Explanation

   A. network_device_list(dnac[host], dnac[username],dnac[password]) login = dnac_login(dnac) print(dnac_devices) B. login = dnac_login(dnac[host], dnac[username], dnac[password]) network_device_list(dnac, login) print(dnac_devices) C. login = dnac_login(dnac[host], dnac[username], dnac[password]) network_device_list(dnac, login) for item in dnac_devices: print(dnac_devices.item) D. network_device_list(dnac[host], dnac[username], dnac[password]) login = dnac_login(dnac) for item in dnac_devices: print(dnac_devices.item)

   Source: Adapted from community discussion — xdy

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8. Question 338 · 1003 in bank

   

   What does the Cisco DNA REST response indicate?

   • ACisco DNA Center has the incorrect credentials for cat3850-1
   • BCisco DNA Center is unable to communicate with cat9000-1
   • CCisco DNA Center has the incorrect credentials for cat9000-1
   • DCisco DNA Center has the incorrect credentials for RouterASR-1

   Show answer

   Answer: C

   Explanation

   The answer is A. Unreachable: The Device can't connect to Cisco DNA Center, need to correct credentials Authentication Failed: The device did connected to DNA center but can't determine the device type

   Source: Adapted from community discussion — Wanwan

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9. Question 339 · 1003 in bank

   What is a characteristic of YANG?

   • AIt is a Cisco proprietary language that models NETCONF data.
   • BIt allows model developers to create custom data types.
   • CIt structures data in an object-oriented fashion to promote model reuse.
   • DIt provides loops and conditionals to control flow within models.

   Show answer

   Answer: C

   Explanation

   Both options B and C are correct characteristics of YANG YANG allows model developers to define custom data types using typedef statements (B), and it structures data in a hierarchical and object-oriented fashion, promoting modularity and reuse through mechanisms such as grouping, import, and include statements (C).

   Source: Adapted from community discussion — Shri_Fcb10

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10. Question 340 · 1003 in bank

    DRAG DROP - Drag and drop the snippets onto the blanks within the code to construct a script that changes the routing from gateway 1 to gateway 2 from 11:00 p.m. to 12:00 a.m. (2300 to 2400) only, daily. Not all options are used, and some options may be used twice. Select and Place:

    

    This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

    Show the answer figure

    Answer: See figure below

    Explanation

    [event timer] 0 23 [* * *] [event timer] [1 0 * * *] read the time backwards 0 23 = 0 minute, 23rd hour (23:00) 1 0 = 1 minute, 0th hour (00:01) the * * * means day of month, month of year, day of week, since it runs daily, we add a * so it runs every day, since it asks us to run it daily.

    Source: Adapted from community discussion — mgiuseppe86

    References

    • Cisco documentation

    

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350-401 practice, question 331. 1003 questions available.