A junior engineer is writing a PyEZ script that connects to a device using a username and password. The script must differentiate between a device that is unreachable and a device that rejects the credentials, so that the correct troubleshooting steps can be logged. Which exception classes should the engineer catch?

Catch the base Exception class and inspect the error message string to determine the failure type.

Catch ConnectError for both unreachable devices and authentication failures, since ConnectAuthError is a subclass of ConnectError.

Catch RpcError for unreachable devices and ConnectError for authentication failures.

Catch ConnectError for unreachable devices and ConnectAuthError for authentication failures.

A network automation engineer is writing a PyEZ script to collect interface statistics from a fleet of Junos devices. The script must continue processing the remaining devices if one device is unreachable or rejects the login credentials. Which exception handling approach should the engineer use?

Use a single try-except block that catches ConnectError and RpcError together, but do not log the device name to keep the code concise.

Use separate try-except blocks: one for ConnectError and ConnectAuthError around the connection, and another for RpcError around the RPC call, logging the device name in each except block.

Catch ConnectError only around the connection attempt, and let any RPC errors propagate to the main script to be handled by a generic error handler.

Wrap the connection and RPC calls in a single try-except block that catches the base Exception class and logs the device name before continuing.

Juniper NetworksCertified Associate, Automation and DevOps

Domain 4Objective 5

PyEZ Exception Handling JN0-224 Practice Questions (Page 2)

Part of the Python and PyEZ domain, which makes up ~28% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~10–17 in this domain), expect 2–3 from this objective — we provide 15 practice questions to prepare you well beyond it. (estimate)

15questions here

3free pages

6concepts

Questions 6–10

6application · medium
A junior engineer is writing a PyEZ script that connects to a device using a username and password. The script must differentiate between a device that is unreachable and a device that rejects the credentials, so that the correct troubleshooting steps can be logged. Which exception classes should the engineer catch?
Select an answer first
7application · medium
A network automation engineer is writing a PyEZ script to collect interface statistics from a fleet of Junos devices. The script must continue processing the remaining devices if one device is unreachable or rejects the login credentials. Which exception handling approach should the engineer use?
Select an answer first
8foundation · easy
In PyEZ, which base exception class do most device-related exceptions inherit from?
Select an answer first
9foundation · easy
When a PyEZ script fails to authenticate to a device, which exception is raised?
Select an answer first
10foundation · easy
Which PyEZ exception is raised when a device connection fails due to an unreachable host?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to JN0-224

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Juniper Networks. “JN0-224” is a trademark of its owner, used for identification only.

PyEZ Exception Handling JN0-224 Practice Questions (Page 2)

Questions 6–10

A network automation engineer is writing a PyEZ script to collect interface statistics from a fleet of Junos devices. The script must continue processing the remaining devices if one device is unreachable or rejects the login credentials. Which exception handling approach should the engineer use?

In PyEZ, which base exception class do most device-related exceptions inherit from?

When a PyEZ script fails to authenticate to a device, which exception is raised?

Which PyEZ exception is raised when a device connection fails due to an unreachable host?

Keep studying — Python and PyEZ