View Full Cisco CCNA Automation 200-901 Exam Dumps and Practice Test Dumps.

 

Question 41

Which Cisco technology provides a controller-based approach for managing and automating enterprise network infrastructure?

1. Cisco DNA Center
2. Cisco IOS CLI
3. Cisco ROMMON
4. Cisco Secure Shell

Correct Answer: 1

Explanation

Cisco DNA Center provides centralized, controller-based management and automation for enterprise networks. It can maintain device inventory, apply configurations, provide network assurance, manage policies, and expose APIs for external automation applications. This controller-based approach allows administrators and software applications to manage many devices through centralized workflows rather than configuring every device independently. The IOS CLI is a device-level management interface, ROMMON is a boot and recovery environment, and SSH provides secure remote access. Therefore, Cisco DNA Center is the appropriate technology for centralized enterprise network automation and management.

Question 42

Which API architecture uses HTTP methods such as GET, POST, PUT, PATCH, and DELETE to interact with resources?

1. SOAP
2. REST
3. SNMP
4. TFTP

Correct Answer: 2

Explanation

REST, or Representational State Transfer, commonly uses standard HTTP methods to interact with resources. GET retrieves information, POST commonly creates or submits information, PUT can replace a resource, PATCH can partially modify a resource, and DELETE removes a resource when supported by the API. REST APIs are widely used in network automation because they are relatively simple to consume and integrate with programming languages. SOAP uses a different web-service architecture, SNMP is primarily used for network monitoring and management, and TFTP provides basic file transfer. Therefore, REST is the correct API architecture.

Question 43

Which HTTP method is normally considered safe because it is intended to retrieve information without changing the resource?

1. POST
2. DELETE
3. GET
4. PATCH

Correct Answer: 3

Explanation

GET is normally considered a safe HTTP method because its intended purpose is to retrieve a representation of a resource without modifying the resource on the server. In network automation, an application might use GET to retrieve device inventory, interface information, topology data, or configuration information. POST can create or submit data, PATCH can modify part of a resource, and DELETE can remove a resource. Although API implementations can introduce application-specific behavior, standard REST design treats GET as a read-oriented operation. Therefore, GET is the appropriate choice for retrieving information without intentionally changing a resource.

Question 44

Which format represents structured data using key-value pairs and arrays and is frequently returned by REST APIs?

1. JSON
2. CSV
3. TXT
4. JPEG

Correct Answer: 1

Explanation

JSON is a structured data format that represents information using objects, key-value pairs, arrays, strings, numbers, Boolean values, and null values. It is widely used by REST APIs because it is compact, human-readable, and supported by programming languages such as Python and JavaScript. Automation scripts can parse JSON responses and extract individual values from network-management systems. CSV is primarily tabular data, TXT is unstructured plain text, and JPEG is an image format. Therefore, JSON is the most appropriate format for structured information commonly exchanged by REST APIs.

Question 45

Which Python library provides a high-level interface for working with SSH connections to network devices?

1. Paramiko
2. NumPy
3. Matplotlib
4. Tkinter

Correct Answer: 1

Explanation

Paramiko is a Python library that implements SSH functionality and can be used by automation applications to establish secure connections to remote systems. It can support tasks such as opening SSH sessions, authenticating users, executing commands, and transferring files through supported SSH mechanisms. This makes it useful when a network automation script needs direct SSH interaction with devices. NumPy focuses on numerical computation, Matplotlib is used for data visualization, and Tkinter provides graphical user-interface capabilities. Therefore, Paramiko is the appropriate library among these options for SSH-based network automation.

Question 46

Which Python library is specifically designed for working with tabular and data-analysis structures such as DataFrames?

1. Requests
2. Pandas
3. Paramiko
4. Flask

Correct Answer: 2

Explanation

Pandas is a Python library widely used for data analysis and manipulation. One of its primary structures is the DataFrame, which represents tabular data in rows and columns. In network automation, Pandas can be useful for processing device inventories, interface information, IP address lists, audit results, or data exported from APIs. Requests is commonly used for HTTP communication, Paramiko provides SSH capabilities, and Flask is a web application framework. Therefore, Pandas is the library most directly associated with DataFrames and tabular data processing.

Question 47

Which Python object is commonly used to store a collection of key-value pairs?

1. List
2. Dictionary
3. Tuple
4. Set

Correct Answer: 2

Explanation

A Python dictionary stores information as key-value pairs. For example, a network device could be represented as {“hostname”: “R1”, “ip”: “192.0.2.1”}. Dictionaries are particularly useful in automation because JSON objects returned by REST APIs map naturally to Python dictionaries. Lists store ordered collections, tuples are ordered immutable collections, and sets store unique unordered elements. Automation applications often combine dictionaries and lists to represent inventories and API responses. Therefore, a dictionary is the appropriate Python object for storing key-value pairs.

Question 48

Which Python loop is best suited for iterating through every device in a list of network devices?

1. if
2. for
3. try
4. import

Correct Answer: 2

Explanation

The Python for loop is designed to iterate through items in an iterable, such as a list. If an automation application has a list of network devices, a for loop can process each device one at a time and perform the required operation. For example, the loop could connect to each router, retrieve interface information, and save the results. The if statement provides conditional logic, try is used for exception handling, and import loads modules. Therefore, for is the appropriate construct for iterating through a collection of network devices.

Question 49

Which Python construct is used to catch and handle an exception generated during program execution?

1. except
2. return
3. yield
4. break

Correct Answer: 1

Explanation

Python uses the except clause to catch exceptions raised inside a corresponding try block. Network automation scripts can encounter many runtime problems, including connection failures, authentication errors, invalid data, timeouts, or unavailable API services. Exception handling allows the program to respond appropriately instead of terminating unexpectedly. The return statement sends a value from a function, yield is used with generators, and break exits a loop. Therefore, except is the Python construct used to handle an exception after it has been raised within a try block.

Question 50

Which HTTP status code generally indicates that the request was successful but there is no response body to return?

1. 200
2. 201
3. 204
4. 404

Correct Answer: 3

Explanation

HTTP status code 204 means “No Content” and generally indicates that the server successfully processed the request but has no response body to return. This can occur after certain update or delete operations where the API does not need to provide additional data. Status 200 indicates a successful request with a response that may contain content, while 201 commonly indicates successful resource creation. Status 404 indicates that a requested resource was not found. Automation scripts should recognize 204 as a successful response when the API documents this behavior.

Question 51

Which HTTP status code generally indicates that the server experienced an internal error while processing a request?

1. 202
2. 400
3. 403
4. 500

Correct Answer: 4

Explanation

HTTP status code 500 represents an internal server error. It generally means the server encountered an unexpected condition that prevented it from successfully completing the request. In network automation, an HTTP 500 response may indicate a problem with the API service or server-side application rather than a simple client authentication issue. A 400 response commonly indicates a bad request, 403 indicates that access is forbidden, and 202 indicates that the request has been accepted for processing but may not yet be complete. Therefore, 500 identifies a server-side internal error.

Question 52

Which HTTP status code commonly indicates that the server understood the request but the request syntax or supplied data is invalid?

1. 400
2. 201
3. 204
4. 301

Correct Answer: 1

Explanation

HTTP status code 400 means “Bad Request” and generally indicates that the server could not process the request because the request or supplied information was invalid. In network automation, this may occur because of malformed JSON, missing required parameters, invalid values, or an incorrect API request structure. A 201 response commonly indicates successful resource creation, 204 indicates successful processing without response content, and 301 represents a redirect. Automation scripts should inspect both the status code and response body when available to identify the reason for a 400 error.

Question 53

Which authentication approach commonly uses a username and password directly in an HTTP request when supported by an API?

1. Basic authentication
2. MACsec
3. EAP-TLS
4. NHRP

Correct Answer: 1

Explanation

HTTP Basic Authentication uses a username and password as credentials when the API supports this authentication method. The credentials are typically encoded in the HTTP Authorization header. Encoding is not the same as encryption, so Basic Authentication should generally be used over HTTPS to protect credentials during transmission. MACsec provides Layer 2 security, EAP-TLS uses certificate-based authentication, and NHRP is associated with DMVPN address resolution. Although modern APIs often use tokens or other authentication methods, Basic Authentication remains a standardized HTTP mechanism. Therefore, Basic Authentication is the appropriate answer.

Question 54

Which security mechanism allows an API client to authenticate using a temporary or scoped credential instead of repeatedly sending a password?

1. API token
2. ARP request
3. VLAN ID
4. STP BPDU

Correct Answer: 1

Explanation

An API token provides an application with a credential that can be used to authenticate or authorize API requests. Tokens can often be configured with expiration times, scopes, or permissions, which can reduce the need to repeatedly transmit a user’s password. Automation systems frequently use tokens because they can be managed independently from interactive user passwords. ARP requests resolve Layer 3 addresses to Layer 2 addresses, VLAN IDs identify Layer 2 segments, and STP BPDUs exchange spanning-tree information. Therefore, an API token is the mechanism intended for token-based API authentication.

Question 55

Which Cisco platform is designed to provide centralized network assurance information such as device health and connectivity insights?

1. Cisco DNA Center
2. Cisco ROMMON
3. Cisco IOS boot loader
4. Cisco Console Port

Correct Answer: 1

Explanation

Cisco DNA Center provides network assurance capabilities that help administrators monitor device health, connectivity, performance, and other operational information. It collects information from network infrastructure and presents it through centralized management and assurance workflows. These capabilities can also be accessed programmatically through supported APIs, making them useful for automation and integration. ROMMON and the IOS boot loader are startup and recovery environments, while the console port provides direct device management access. Therefore, Cisco DNA Center is the platform associated with centralized network assurance and automation capabilities.

Question 56

Which Cisco technology uses a centralized controller and policy-based approach to automate enterprise network configuration?

1. Cisco DNA Center
2. Telnet
3. TFTP
4. CDP

Correct Answer: 1

Explanation

Cisco DNA Center provides centralized management and policy-based automation for enterprise networks. It allows administrators to define network intent and use centralized workflows to provision devices, apply policies, monitor network behavior, and maintain inventory. This reduces the need to manually configure every device individually. Telnet provides remote terminal access, TFTP is a simple file-transfer protocol, and CDP is primarily used for discovering directly connected Cisco devices. Therefore, Cisco DNA Center is the technology among these choices that provides controller-based enterprise network automation and centralized policy management.

Question 57

Which protocol is commonly used by network-management systems to monitor device information using a manager-agent architecture?

1. SNMP
2. HTTP
3. SMTP
4. FTP

Correct Answer: 1

Explanation

Simple Network Management Protocol (SNMP) is widely used for monitoring and managing network devices. It uses a manager-agent architecture in which an SNMP manager communicates with agents running on network devices. Information can be collected using management information bases (MIBs), while traps or informs can provide event notifications. HTTP is commonly used for web and REST APIs, SMTP is used for email transmission, and FTP is used for file transfer. Although modern automation increasingly uses APIs and model-driven protocols, SNMP remains important for monitoring and operational data collection.

Question 58

Which SNMP operation allows a network device to send an unsolicited notification to an SNMP manager?

1. GET
2. SET
3. TRAP
4. PUT

Correct Answer: 3

Explanation

An SNMP trap is an unsolicited notification sent by an SNMP agent to an SNMP manager when a defined event occurs. For example, a device might generate a trap when an interface changes state or another monitored condition occurs. SNMP GET requests are used by managers to retrieve information, while SET requests modify supported managed values. PUT is an HTTP method rather than an SNMP operation. Traps can help monitoring systems receive event notifications without continuously polling every device for every possible change. Therefore, TRAP is the correct SNMP operation.

Question 59

Which automation benefit results from replacing repetitive manual configuration tasks with software-driven workflows?

1. Increased manual dependency
2. Reduced consistency
3. Improved repeatability
4. Greater configuration variation

Correct Answer: 3

Explanation

Automation improves repeatability by allowing the same defined workflow to be executed consistently across multiple devices or environments. Instead of manually entering similar commands repeatedly, an automation system can use templates, APIs, scripts, or controllers to apply standardized operations. This can reduce human errors and make deployments easier to reproduce. Increased manual dependency and greater configuration variation are generally contrary to the goals of automation, while reduced consistency would represent an undesirable outcome. Therefore, improved repeatability is an important benefit of software-driven network automation workflows.

Question 60

Which approach uses a desired configuration or state as the source of truth and automatically works toward maintaining that state?

1. Intent-based automation
2. Manual CLI configuration
3. Console-only management
4. Unstructured scripting

Correct Answer: 1

Explanation

Intent-based automation focuses on defining the desired state or intended outcome and using automation systems to implement and maintain that state. Instead of requiring administrators to manually specify every individual device command, the system can translate higher-level intent into appropriate configurations and monitor whether the network continues to match the intended state. This approach is associated with controller-based networking and modern automation platforms. Manual CLI configuration and console-only management require direct human intervention, while unstructured scripting may not necessarily maintain a defined desired state. Therefore, intent-based automation best represents the described approach.