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Which two statements are true about an XML schema document? (Choose two.)
An XML schema document (XSD) is a key component in defining the structure and constraints of XML data used in various applications, including Junos:
Authoritative Source (C): An XML schema document serves as the authoritative definition of the structure, content, and semantics of XML documents. It ensures that the XML data adheres to specific rules and formats, which is essential for both operational and configuration XML.
XSD Format (D): XML schema documents are typically written in the XSD (XML Schema Definition) format, which provides a formal description of the XML document's structure.
Option A is incorrect because XML schemas are not formatted as XLT files (which are related to XSLT transformations), and Option B is incorrect because XML schemas can indeed be examined in the Junos CLI using appropriate commands.
W3C XML Schema Definition Language (XSD) Documentation: Provides comprehensive information on the XSD format.
Juniper Networks Documentation: Discusses the role of XML schemas in managing Junos configurations.
You are using the curl tool to include multiple RPCs in a REST API request.
Which HTTP method must be used for this request?
Which two PyEZ object methods are included by default when using a Python context manager? (Choose two.)
When using a Python context manager with Junos PyEZ, two key methods are automatically included:
open() and close(): These methods are used to establish and terminate a connection to a Junos device. When you use a context manager (the with statement), open() is called when entering the block, and close() is called when exiting, ensuring the connection is properly managed.
lock() and unlock(): These methods are used to lock the configuration database to prevent other users from making changes while you are working on it. When using a context manager, lock() is called at the start of the block, and unlock() is called at the end, ensuring safe configuration changes.
Supporting Reference:
Junos PyEZ Documentation: The documentation explains how context managers work in PyEZ, including the automatic invocation of open(), close(), lock(), and unlock() methods.
Which two statements about NETCONF layers are correct? (Choose two.)
NETCONF (Network Configuration Protocol) is a standard protocol defined for managing network devices. NETCONF operates in a layered architecture, which includes the following key layers:
Operations Layer: This layer deals with the actual operations like <get-config>, <edit-config>, <copy-config>, and others. It receives RPC (Remote Procedure Call) requests from a remote NETCONF client and processes these requests.
Messages Layer: This layer is responsible for encoding the RPCs and sending them over the network. It handles the communication between the NETCONF client and server, ensuring that the RPC messages are correctly formatted (usually in XML) and transmitted.
Statement B is correct because the Messages layer is responsible for sending RPCs to a remote NETCONF server.
Statement C is correct because the Operations layer is where the NETCONF server receives and processes the RPCs sent by the client.
Supporting Reference:
Juniper Networks NETCONF Documentation: Provides a detailed breakdown of the NETCONF protocol layers and their functions.
RFC 6241: The official specification for NETCONF, which describes the layered architecture, including the operations and messages layers.
