JN0-420 Online Practice Questions and Answers
Click the Exhibit button. Exhibit:
You are using RubyEZ to interact with a Junos device: however, you are not successfully connecting to the
device.
Referring to the exhibit, what is the problem?
A. Argument passed to Netconf:: SSH.new statement must be referenced as variables
B. Netconf::SSH.new statement only expects an IP address of the target device
C. Netconf::SSH.new statement arguments must be hashes
D. A Junos::Ez::Provider statement is missing before the Netconf::SSH. New statement
Click the Exhibit button. Exhibit:
How would you test the configuration snippet shown in the exhibit?
A. Use the root@router% logger SSHD_LOGIN_FAILED command
B. Use the root@router% logger -e SSHD_LOGIN_FAILED command
C. Use the root@router% test SSHD_LOGIN_FAILED command
D. Use the root@router% event SSHD_LOGIN_FAILED command
Click the Exhibit button. Exhibit:
Where would the Python code shown in the exhibit be used?
A. a commit script
B. an op script
C. an event script
D. an SNMP script
Which statement describes the relationship between YANG and NETCONF?
A. YANG is the programming language used to generate base classes to develop the NETCONF protocol
B. NETCONF models XML data used to program YANG modules
C. YANG models the state and configuration data manipulated by the NETCONF protocol
D. NETCONF is the programming language used to create the state and configuration data manipulated by YANG
With which three processes does the JET service process communicate? (Choose three)
A. snmpd
B. ancpd
C. cosd
D. mgd
E. rpd
You want to push a configuration onto a Junos device without using NETCONF. Which two will accomplish this task? (Choose two)
A. ZTP
B. Ansible
C. JET
D. JSNAPy
What are two format distinctions to know when using YAML? (Choose two)
A. white space indentation sensitive
B. tab indentation not allowed
C. tab indentation allowed
D. white space indentation insensitive
A customer has a control machine with a default Ansible installation. During execution of an Ansible
module, the Ansible control machine generates the no hosts matched error.
Which statement is correct in this scenario?
A. The target device was not defined in /etc/ansible/inventory/hosts on the control machine
B. The target device was not defined on the associated DNS servers
C. The target device was not defined in /etc/hosts on the control machine
D. The target device was not defined in /etc/ansible/hosts on the control machine
Which YAML document represents a valid mapping (dictionary) of sequences (lists)?
A. Option A
B. Option B
C. Option C
D. Option D