[May 29, 2022] JN0-421 Practice Exam Dumps - 99% Marks In Juniper Exam
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NEW QUESTION 21
What are two message types that compose the message layer of the Juniper NETCONF implementation?
(Choose two?)
- A. <rpc-reply>
- B. <get>
- C. <lock>
- D. <rpc>
Answer: A,D
NEW QUESTION 22
To which component(s) does the JET service APIs provide access?
- A. forwarding plane
- B. control plane
- C. XML APIs
- D. YANG modules
Answer: B
NEW QUESTION 23
Click the Exhibit button.
The r0 device is currently in a factory-default state. The console connection of r0 is reachable using Telnet on TCP port 555 of the console_server host.
Referring to the exhibit, which statement is true?
- A. A password for the root user must be configured for the playbook to run successfully.
- B. The Telnet service must be configured for the playbook to run successfully.
- C. The NETCONF service must be configured for the playbook to run successfully.
- D. The device does not require configuration changes for the playbook to run successfully.
Answer: C
NEW QUESTION 24
Drag and drop
Referring to the exhibit, the configuration components are displayed in which format?
- A. JSON
- B. XML
- C. YANG
- D. YAML
Answer: A
NEW QUESTION 25
A customer has a control machine with a default Ansible installation. During execution of an Ansible module against a Junos device, the Ansible control machine generates the
What is the cause for this error?
- A. Ansible cannot connect to the device through NTETCONF
- B. Ansible cannot authenticate to the device.
- C. router1.example.com was not defined in /etc/hosts on the control machine.
- D. router1.example.com was not defined in /etc/ansible/inventory/hosts on the control machine.
Answer: D
NEW QUESTION 26
Click the Exhibit button.
You are using RubyEZ to interface with a Junos device, however, you are not successfully connecting to the device.
Referring to the exhibit, what is the problem?
- A. Netconf::SSH.new statement only expects an IP address of the target device.
- B. A Junos::Ez::Provider statement is missing before the Netconf::SSH.nw statement.
- C. Arguments passed to Netconf::SSH.new statement must be referenced as variables.
- D. Netconf::SSH.new statement arguments must be hashes.
Answer: C
NEW QUESTION 27
What is a valid method for determining the Junos RPC associated with the show version command?
A)
B)
C)
D)
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: A
NEW QUESTION 28
By default, Python event scripts and SNMP script configured on a Junos device execute as which user ?
- A. root
- B. wheel
- C. nobody
- D. snmpd
Answer: C
NEW QUESTION 29
What are two benefits of network automation? (Choose two )
- A. to improve product lifecycle management
- B. to enforce consistency in automated devices
- C. increase programming language fluency
- D. to provide historical configuration management
Answer: A,B
NEW QUESTION 30
What are three elements of a JET notification message? (Choose three)
- A. username
- B. hostname
- C. time
- D. severity
- E. subscription type
Answer: B,C,D
Explanation:
Explanation
JET notification is delivered in JSON format. The JSON message has two parts, one the header, and other the event-information portion, called attributes. The header is common for all events. It contains the event ID, hostname, time, severity, and facility of the event. The attributes vary depending event's topic name.
References:
NEW QUESTION 31
Click the Exhibit button.
An automation developer is using command-line scripting and wants to briefly survey NETCONF capabilities before running a new task.
Referring to the exhibit, how does the automation developer end the current NETCONF session and go to the next one?
- A. Use the quit command.
- B. Use the <rpc><kill-ession></close-session></>pc> command.
- C. Use the logout command.
- D. Use the <rpc><kill-ession><kill-session></>pc> command.
Answer: D
NEW QUESTION 32
What is the purpose of an _intit_.py file ?
- A. An_init_.py file indicates to the Python interpreter that a directory contains Python packages or modules.
- B. An_init_.py file initializes a Python application with default values for instantiated objects.
- C. An_init_.py file contains strings for additional directories that the Python interpreter adds to sys.path [].
- D. An_init_.py file sets all magic attributes with the _init_prefix with the appropriate default values.
Answer: B
NEW QUESTION 33
Click the Exhibit button.
Exhibit:
Referring to the exhibit, which exception is raised if the <get-interface-information> RPC takes 40 seconds to return a complete response?
- A. jnpr.junos.exception.LockError
- B. jnpr.junos.exception.ConnectTimeoutError
- C. jnpr.junos.exception.RpcTimeoutError
- D. jnpr.junos.exception.RpcError
Answer: C
Explanation:
Explanation
By default, the timeout value is 30 seconds, if this is exceeded a jnpr.junos.exception.RpcTimeoutError error is received.
NEW QUESTION 34
You want to implement a function that is available in the Junson OS, but not defined in a standard model.
Which statement would you use with YANG to accomplish this task?
- A. choice
- B. deviation
- C. case
- D. augment
Answer: A
NEW QUESTION 35
Click the Exhibit button.
The Ansible playbook shown in the exhibit is executed against a set of Junos network devices. Each Junos device is configured with a user account in the super-user login class. The user account uses SSH-key-based authentication with a passphrase of user 123.
What is the result of executing this playbook against the Junos network devices?
- A. The playbook fails dut to a YAMI. Syntax error.
- B. The playbook executes, but fails with a "connectAuthError" due to the missing passphrase argument to the junos_get_facts module.
- C. The playbook executes and prints"VARIABLE IS NOT DEFINED!" as the value of response. Facts.version.
- D. The playbook executes and prints the version of Junos running on each network device as the value of response.facts.version.
Answer: B
NEW QUESTION 36
What are three ways for PyEZ to connect to supported Junos devices? (Choose three)
- A. NETCONF over SSH
- B. Telnet
- C. serial interface
- D. Webhook
- E. JET API
Answer: A,B,C
NEW QUESTION 37
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