3. D. Messages sent with NETCONF use remote
procedure calls (RPCs), a standard framework for
clients to send a request to a server to perform an
action and return the results.
4. C. YANG defines a set of built-in types and has a
mechanism through which additional types can
be defined. There are more than 20 base types,
including binary, enumeration, and empty.
Percent is not a built-in data type.
5. C. The YANG header contains the namespace for
the module. The namespace is used to uniquely
identify each module on a system that
implements NETCONF.
6. B. One popular NETCONF client is the Python 3
ncclient library.
7. A, D. RESTCONF data is encoded with either
XML or JSON. Compared with NETCONF,
RESTCONF has added support for JSON
encoding.
8. A. The PATCH method provides a resource
patching mechanism. It is equivalent to the
NETCONF <edit-config> operation with
operation=merge.
9. C. Per the RESTCONF standard, devices
implementing the RESTCONF protocol should
expose a resource called /.well-known/host-meta
to enable discovery of root programmatically.
10. B, C. There are two types of telemetry
subscriptions. With a dynamic subscription, the
subscriber sends a request, usually via the ietf-
yangpush.yang data model. A configured
subscription is configured via the CLI,
NETCONF, or RESTCONF and is persistent
between reboots.CHAPTER 13