Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 1101:

  Refer to the exhibit.

  

  As part of the preparation for network automation, a client network is deployed with on-box Python. The test script fails to convert the output type from a string value to an object.

  Which line of code enables the output to be printed in JSON object format?

  A. json_final = json.loads(json_data)
  B. print(json_final["TABLE_intf"]["ROW_intf"][0]["prefix"])
  C. from cli import json
  D. cmd1 = "show ip int brief | json"
  A. json_final = json.loads(json_data)

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  Explanation

  The script receives CLI output as a string:

  json_data = cli(cmd)

  To parse that JSON-formatted string into a Python object, the script must use:

  json_final = json.loads(json_data) json.loads() converts a JSON string into a Python object, such as a dictionary or list. After the conversion, the script can access values by using dictionary keys and list indexes.

  Option B is incorrect because it assumes the JSON data has already been converted into an object.

  Option C is incorrect because json is a Python module and should be imported with import json, not from the cli module.

  Option D is incorrect because it only defines the command string; it does not convert the returned string into an object.

  Key distinction:

  json.loads() # Converts JSON string to Python object json.dumps() # Converts Python object to JSON string

• Question 1102:

  Refer to the exhibit.

  

  An engineer configures a trunk between SW1 and SW2 but tagged packets are not passing.

  Which action fixes the issue?

  A. Configure SW1 with dynamic auto mode on interface FastEthernet0/1.
  B. Configure the native VLAN to be the same VLAN on both switches on interface FastEthernet0/1.
  C. Configure SW2 with encapsulation dot1q on interface FastEthernet0/1.
  D. Configure FastEthernet0/1 on both switches for static trunking.
  C. Configure SW2 with encapsulation dot1q on interface FastEthernet0/1.

• Question 1103:

  What is the name of the numerical relationship of the wireless signal compared to the noise floor?

  A. SNR
  B. RSSI
  C. EIRP
  D. gain
  A. SNR

• Question 1104:

  SIMULATION

  Guidelines

  This is a lab item in which tasks will be performed on virtual devices.

  1. Refer to the Tasks tab to view the tasks for this lab item.

  2. Refer to the Topology tab to access the device console(s) and perform the tasks.

  3. Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

  4. All necessary preconfigurations have been applied.

  5. Do not change the enable password or hostname for any device.

  6. Save your configurations to NVRAM before moving to the next item.

  7. Click Next at the bottom of the screen to submit this lab and move to the next question.

  8. When Next is clicked, the lab closes and cannot be reopened.

  Topology

  

  Tasks

  

  A. See the solution below in Explanation.
  B. Place Holder
  C. Place Holder
  D. Place Holder
  A. See the solution below in Explanation.

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  Explanation

  Solution:

  

  

  

  VERIFICATION:

  

• Question 1105:

  Why would an engineer use YANG?

  A. to transport data between a controller and a network device
  B. to access data using SNMP
  C. to model data for NETCONF
  D. to translate JSON into an equivalent XML syntax
  C. to model data for NETCONF

• Question 1106:

  How are the Cisco Express Forwarding table and the FIB related to each other?

  A. Cisco Express Forwarding uses a FIB to make IP destination prefix-based switching decisions correct
  B. The FIB is used to populate the Cisco Express Forwarding table
  C. There can be only one FIB but multiple Cisco Express Forwarding tables on IOS devices
  D. The Cisco Express Forwarding table allows route lookups to be forwarded to the route processor for processing before they are sent to the FIB
  A. Cisco Express Forwarding uses a FIB to make IP destination prefix-based switching decisions correct

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  Explanation

  The Forwarding Information Base (FIB) table ?CEF uses a FIB to make IP destination prefix-based switching decisions. The FIB is conceptually similar to a routing table or information base. It maintains a mirror image of the forwarding information contained in the IP routing table. When routing or topology changes occur in the network, the IP routing table is updated, and these changes are reflected in the FIB. The FIB maintains next-hop address information based on the information in the IP routing table.

  References:

  https://www.cisco.com/c/en/us/support/docs/routers/12000-series-routers/47321-ciscoef.html

• Question 1107:

  Which two functions is an edge node responsible for? (Choose two.)

  A. provides multiple entry and exit points for fabric traffic
  B. provides the default exit point for fabric traffic
  C. provides the default entry point for fabric traffic
  D. provides a host database that maps endpoint IDs to a current location
  E. authenticates endpoints
  C. provides the default entry point for fabric traffic
  E. authenticates endpoints

• Question 1108:

  How is OAuth framework used in REST API?

  A. as a framework to hash the security information in the REST URL
  B. by providing the external application a token that authorizes access to the account
  C. as a framework to hide the security information in the REST URL
  D. by providing the user credentials to the external application
  B. by providing the external application a token that authorizes access to the account

• Question 1109:

  What is a benefit of data modeling languages like YANG?

  A. They enable programmers to change or write their own application within the device operating system.
  B. They create more secure and efficient SNMP OIDs.
  C. They make the CLI simpler and more efficient.
  D. They provide a standardized data structure, which results in configuration scalability and consistency.
  D. They provide a standardized data structure, which results in configuration scalability and consistency.

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  Explanation

  Yet Another Next Generation (YANG) is a language which is only used to describe data models (structure). It is not XML or JSON.

• Question 1110:

  Which two actions, when applied in the LAN network segment, will facilitate Layer 3 CAPWAP discovery for lightweight AP? (Choose two.)

  A. Utilize DHCP option 17.
  B. Configure WLC IP address on LAN switch.
  C. Utilize DHCP option 43.
  D. Configure an ip helper-address on the router interface
  E. Enable port security on the switch port
  C. Utilize DHCP option 43.
  D. Configure an ip helper-address on the router interface

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  Explanation

  In a Cisco Unified Wireless network, the LAPs must first discover and join a WLC before they can service wireless clients.

  However, this presents a question: how did the LAPs find the management IP address of the controller when it is on a different subnet? If you do not tell the LAP where the controller is via DHCP option 43, DNS resolution of "Cisco-capwap-controller.local_domain", or statically configure it, the LAP does not know where in the network to find the management interface of the controller.

  References:

  https://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/119286-lap-notjoin-wlc-tshoot.html