A Python script receives a JSON response from a network device. The response contains a field 'interfaces' that is sometimes a list and sometimes a single dictionary, depending on the device model. The script must handle both cases. Which code snippet correctly normalizes the data into a list?

interfaces = [data['interfaces']] always

interfaces = list(data['interfaces'])

if isinstance(data['interfaces'], dict): interfaces = [data['interfaces']] else: interfaces = data['interfaces']

interfaces = data['interfaces'] if isinstance(data['interfaces'], list) else data['interfaces'].values()

A Python script must parse an XML file that uses namespaces. The script needs to extract all elements with the local name 'interface' regardless of the namespace prefix. Which approach using xml.etree.ElementTree is correct?

Use root.findall('.//{namespace}interface') with a hardcoded namespace

Use root.findall('.//interface')

Use root.findall('.//{*}interface')

Use root.iter() and check element.tag for the local name after stripping the namespace

CiscoCertified Network Associate Automation (CCNA Automation)

Domain 1Objective 2

2. Describe Parsing of Common Data Format (XML, JSON, and YAML) to Python Data Structures 200-901 Practice Questions (Page 2)

Part of the 1.0 Software Development and Design domain, which accounts for 15% of the 200-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 1–2 from this objective — we provide 23 practice questions to prepare you well beyond it. (estimate)

23questions here

5free pages

4concepts

15%of the exam

Questions 6–10

6expert · hard
A Python script receives a JSON response from a network device. The response contains a field 'interfaces' that is sometimes a list and sometimes a single dictionary, depending on the device model. The script must handle both cases. Which code snippet correctly normalizes the data into a list?
Select an answer first
7expert · medium
A Python script must load a YAML configuration file that contains a mix of strings, integers, booleans, and nested lists. The script also needs to ensure that no arbitrary Python objects are instantiated during parsing for security reasons. Which parsing method is the most appropriate?
Select an answer first
8application · medium
A team maintains configuration files that are read by both humans and Python scripts. The files contain nested structures and occasional comments. The team wants to minimize syntax errors while keeping the files readable. Which format should they use?
Select an answer first
9expert · hard
A Python script must parse an XML file that uses namespaces. The script needs to extract all elements with the local name 'interface' regardless of the namespace prefix. Which approach using xml.etree.ElementTree is correct?
Select an answer first
10expert · hard
A Python script uses yaml.safe_load() to parse a YAML file. The file contains a key 'enabled' with value 'yes'. What Python value will 'enabled' have?
Select an answer first

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2. Describe Parsing of Common Data Format (XML, JSON, and YAML) to Python Data Structures 200-901 Practice Questions (Page 2)

Questions 6–10

A Python script receives a JSON response from a network device. The response contains a field 'interfaces' that is sometimes a list and sometimes a single dictionary, depending on the device model. The script must handle both cases. Which code snippet correctly normalizes the data into a list?

A Python script must load a YAML configuration file that contains a mix of strings, integers, booleans, and nested lists. The script also needs to ensure that no arbitrary Python objects are instantiated during parsing for security reasons. Which parsing method is the most appropriate?

A team maintains configuration files that are read by both humans and Python scripts. The files contain nested structures and occasional comments. The team wants to minimize syntax errors while keeping the files readable. Which format should they use?

A Python script must parse an XML file that uses namespaces. The script needs to extract all elements with the local name 'interface' regardless of the namespace prefix. Which approach using xml.etree.ElementTree is correct?

A Python script uses yaml.safe_load() to parse a YAML file. The file contains a key 'enabled' with value 'yes'. What Python value will 'enabled' have?

Keep studying — 1.0 Software Development and Design