diff --git a/.vscode/cspell.json b/.vscode/cspell.json
index 405956c66227..62a0ca562da0 100644
--- a/.vscode/cspell.json
+++ b/.vscode/cspell.json
@@ -915,7 +915,7 @@
     },
     {
       "filename": "sdk/cognitivelanguage/azure-ai-language-questionanswering/**",
-      "words": [ "qnas", "qnamaker", "ADTO", "tfidf", "ngram" ],
+      "words": [ "qnas", "qnamaker", "ADTO", "tfidf", "ngram", "kwoa" ],
       "caseSensitive": false
     },
     {
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/model_base.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/model_base.py
index 12926fa98dcf..097f8197cfd9 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/model_base.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/model_base.py
@@ -37,6 +37,7 @@
 
 TZ_UTC = timezone.utc
 _T = typing.TypeVar("_T")
+_NONE_TYPE = type(None)
 
 
 def _timedelta_as_isostr(td: timedelta) -> str:
@@ -171,6 +172,21 @@ def default(self, o):  # pylint: disable=too-many-return-statements
     r"(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s\d{4}\s\d{2}:\d{2}:\d{2}\sGMT"
 )
 
+_ARRAY_ENCODE_MAPPING = {
+    "pipeDelimited": "|",
+    "spaceDelimited": " ",
+    "commaDelimited": ",",
+    "newlineDelimited": "\n",
+}
+
+
+def _deserialize_array_encoded(delimit: str, attr):
+    if isinstance(attr, str):
+        if attr == "":
+            return []
+        return attr.split(delimit)
+    return attr
+
 
 def _deserialize_datetime(attr: typing.Union[str, datetime]) -> datetime:
     """Deserialize ISO-8601 formatted string into Datetime object.
@@ -202,7 +218,7 @@ def _deserialize_datetime(attr: typing.Union[str, datetime]) -> datetime:
     test_utc = date_obj.utctimetuple()
     if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
         raise OverflowError("Hit max or min date")
-    return date_obj
+    return date_obj  # type: ignore[no-any-return]
 
 
 def _deserialize_datetime_rfc7231(attr: typing.Union[str, datetime]) -> datetime:
@@ -256,7 +272,7 @@ def _deserialize_time(attr: typing.Union[str, time]) -> time:
     """
     if isinstance(attr, time):
         return attr
-    return isodate.parse_time(attr)
+    return isodate.parse_time(attr)  # type: ignore[no-any-return]
 
 
 def _deserialize_bytes(attr):
@@ -315,6 +331,8 @@ def _deserialize_int_as_str(attr):
 def get_deserializer(annotation: typing.Any, rf: typing.Optional["_RestField"] = None):
     if annotation is int and rf and rf._format == "str":
         return _deserialize_int_as_str
+    if annotation is str and rf and rf._format in _ARRAY_ENCODE_MAPPING:
+        return functools.partial(_deserialize_array_encoded, _ARRAY_ENCODE_MAPPING[rf._format])
     if rf and rf._format:
         return _DESERIALIZE_MAPPING_WITHFORMAT.get(rf._format)
     return _DESERIALIZE_MAPPING.get(annotation)  # pyright: ignore
@@ -353,9 +371,39 @@ def __contains__(self, key: typing.Any) -> bool:
         return key in self._data
 
     def __getitem__(self, key: str) -> typing.Any:
+        # If this key has been deserialized (for mutable types), we need to handle serialization
+        if hasattr(self, "_attr_to_rest_field"):
+            cache_attr = f"_deserialized_{key}"
+            if hasattr(self, cache_attr):
+                rf = _get_rest_field(getattr(self, "_attr_to_rest_field"), key)
+                if rf:
+                    value = self._data.get(key)
+                    if isinstance(value, (dict, list, set)):
+                        # For mutable types, serialize and return
+                        # But also update _data with serialized form and clear flag
+                        # so mutations via this returned value affect _data
+                        serialized = _serialize(value, rf._format)
+                        # If serialized form is same type (no transformation needed),
+                        # return _data directly so mutations work
+                        if isinstance(serialized, type(value)) and serialized == value:
+                            return self._data.get(key)
+                        # Otherwise return serialized copy and clear flag
+                        try:
+                            object.__delattr__(self, cache_attr)
+                        except AttributeError:
+                            pass
+                        # Store serialized form back
+                        self._data[key] = serialized
+                        return serialized
         return self._data.__getitem__(key)
 
     def __setitem__(self, key: str, value: typing.Any) -> None:
+        # Clear any cached deserialized value when setting through dictionary access
+        cache_attr = f"_deserialized_{key}"
+        try:
+            object.__delattr__(self, cache_attr)
+        except AttributeError:
+            pass
         self._data.__setitem__(key, value)
 
     def __delitem__(self, key: str) -> None:
@@ -483,6 +531,8 @@ def _is_model(obj: typing.Any) -> bool:
 
 def _serialize(o, format: typing.Optional[str] = None):  # pylint: disable=too-many-return-statements
     if isinstance(o, list):
+        if format in _ARRAY_ENCODE_MAPPING and all(isinstance(x, str) for x in o):
+            return _ARRAY_ENCODE_MAPPING[format].join(o)
         return [_serialize(x, format) for x in o]
     if isinstance(o, dict):
         return {k: _serialize(v, format) for k, v in o.items()}
@@ -638,6 +688,10 @@ def __new__(cls, *args: typing.Any, **kwargs: typing.Any) -> Self:
                 if not rf._rest_name_input:
                     rf._rest_name_input = attr
             cls._attr_to_rest_field: dict[str, _RestField] = dict(attr_to_rest_field.items())
+            cls._backcompat_attr_to_rest_field: dict[str, _RestField] = {
+                Model._get_backcompat_attribute_name(cls._attr_to_rest_field, attr): rf
+                for attr, rf in cls._attr_to_rest_field.items()
+            }
             cls._calculated.add(f"{cls.__module__}.{cls.__qualname__}")
 
         return super().__new__(cls)
@@ -647,6 +701,16 @@ def __init_subclass__(cls, discriminator: typing.Optional[str] = None) -> None:
             if hasattr(base, "__mapping__"):
                 base.__mapping__[discriminator or cls.__name__] = cls  # type: ignore
 
+    @classmethod
+    def _get_backcompat_attribute_name(cls, attr_to_rest_field: dict[str, "_RestField"], attr_name: str) -> str:
+        rest_field_obj = attr_to_rest_field.get(attr_name)  # pylint: disable=protected-access
+        if rest_field_obj is None:
+            return attr_name
+        original_tsp_name = getattr(rest_field_obj, "_original_tsp_name", None)  # pylint: disable=protected-access
+        if original_tsp_name:
+            return original_tsp_name
+        return attr_name
+
     @classmethod
     def _get_discriminator(cls, exist_discriminators) -> typing.Optional["_RestField"]:
         for v in cls.__dict__.values():
@@ -767,6 +831,17 @@ def _deserialize_sequence(
         return obj
     if isinstance(obj, ET.Element):
         obj = list(obj)
+    try:
+        if (
+            isinstance(obj, str)
+            and isinstance(deserializer, functools.partial)
+            and isinstance(deserializer.args[0], functools.partial)
+            and deserializer.args[0].func == _deserialize_array_encoded  # pylint: disable=comparison-with-callable
+        ):
+            # encoded string may be deserialized to sequence
+            return deserializer(obj)
+    except:  # pylint: disable=bare-except
+        pass
     return type(obj)(_deserialize(deserializer, entry, module) for entry in obj)
 
 
@@ -817,16 +892,16 @@ def _get_deserialize_callable_from_annotation(  # pylint: disable=too-many-retur
 
     # is it optional?
     try:
-        if any(a for a in annotation.__args__ if a == type(None)):  # pyright: ignore
+        if any(a is _NONE_TYPE for a in annotation.__args__):  # pyright: ignore
             if len(annotation.__args__) <= 2:  # pyright: ignore
                 if_obj_deserializer = _get_deserialize_callable_from_annotation(
-                    next(a for a in annotation.__args__ if a != type(None)), module, rf  # pyright: ignore
+                    next(a for a in annotation.__args__ if a is not _NONE_TYPE), module, rf  # pyright: ignore
                 )
 
                 return functools.partial(_deserialize_with_optional, if_obj_deserializer)
             # the type is Optional[Union[...]], we need to remove the None type from the Union
             annotation_copy = copy.copy(annotation)
-            annotation_copy.__args__ = [a for a in annotation_copy.__args__ if a != type(None)]  # pyright: ignore
+            annotation_copy.__args__ = [a for a in annotation_copy.__args__ if a is not _NONE_TYPE]  # pyright: ignore
             return _get_deserialize_callable_from_annotation(annotation_copy, module, rf)
     except AttributeError:
         pass
@@ -972,6 +1047,7 @@ def _failsafe_deserialize_xml(
         return None
 
 
+# pylint: disable=too-many-instance-attributes
 class _RestField:
     def __init__(
         self,
@@ -984,6 +1060,7 @@ def __init__(
         format: typing.Optional[str] = None,
         is_multipart_file_input: bool = False,
         xml: typing.Optional[dict[str, typing.Any]] = None,
+        original_tsp_name: typing.Optional[str] = None,
     ):
         self._type = type
         self._rest_name_input = name
@@ -995,10 +1072,15 @@ def __init__(
         self._format = format
         self._is_multipart_file_input = is_multipart_file_input
         self._xml = xml if xml is not None else {}
+        self._original_tsp_name = original_tsp_name
 
     @property
     def _class_type(self) -> typing.Any:
-        return getattr(self._type, "args", [None])[0]
+        result = getattr(self._type, "args", [None])[0]
+        # type may be wrapped by nested functools.partial so we need to check for that
+        if isinstance(result, functools.partial):
+            return getattr(result, "args", [None])[0]
+        return result
 
     @property
     def _rest_name(self) -> str:
@@ -1009,14 +1091,37 @@ def _rest_name(self) -> str:
     def __get__(self, obj: Model, type=None):  # pylint: disable=redefined-builtin
         # by this point, type and rest_name will have a value bc we default
         # them in __new__ of the Model class
-        item = obj.get(self._rest_name)
+        # Use _data.get() directly to avoid triggering __getitem__ which clears the cache
+        item = obj._data.get(self._rest_name)
         if item is None:
             return item
         if self._is_model:
             return item
-        return _deserialize(self._type, _serialize(item, self._format), rf=self)
+
+        # For mutable types, we want mutations to directly affect _data
+        # Check if we've already deserialized this value
+        cache_attr = f"_deserialized_{self._rest_name}"
+        if hasattr(obj, cache_attr):
+            # Return the value from _data directly (it's been deserialized in place)
+            return obj._data.get(self._rest_name)
+
+        deserialized = _deserialize(self._type, _serialize(item, self._format), rf=self)
+
+        # For mutable types, store the deserialized value back in _data
+        # so mutations directly affect _data
+        if isinstance(deserialized, (dict, list, set)):
+            obj._data[self._rest_name] = deserialized
+            object.__setattr__(obj, cache_attr, True)  # Mark as deserialized
+            return deserialized
+
+        return deserialized
 
     def __set__(self, obj: Model, value) -> None:
+        # Clear the cached deserialized object when setting a new value
+        cache_attr = f"_deserialized_{self._rest_name}"
+        if hasattr(obj, cache_attr):
+            object.__delattr__(obj, cache_attr)
+
         if value is None:
             # we want to wipe out entries if users set attr to None
             try:
@@ -1046,6 +1151,7 @@ def rest_field(
     format: typing.Optional[str] = None,
     is_multipart_file_input: bool = False,
     xml: typing.Optional[dict[str, typing.Any]] = None,
+    original_tsp_name: typing.Optional[str] = None,
 ) -> typing.Any:
     return _RestField(
         name=name,
@@ -1055,6 +1161,7 @@ def rest_field(
         format=format,
         is_multipart_file_input=is_multipart_file_input,
         xml=xml,
+        original_tsp_name=original_tsp_name,
     )
 
 
@@ -1184,7 +1291,7 @@ def _get_wrapped_element(
         _get_element(v, exclude_readonly, meta, wrapped_element)
     else:
         wrapped_element.text = _get_primitive_type_value(v)
-    return wrapped_element
+    return wrapped_element  # type: ignore[no-any-return]
 
 
 def _get_primitive_type_value(v) -> str:
@@ -1197,7 +1304,9 @@ def _get_primitive_type_value(v) -> str:
     return str(v)
 
 
-def _create_xml_element(tag, prefix=None, ns=None):
+def _create_xml_element(
+    tag: typing.Any, prefix: typing.Optional[str] = None, ns: typing.Optional[str] = None
+) -> ET.Element:
     if prefix and ns:
         ET.register_namespace(prefix, ns)
     if ns:
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/serialization.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/serialization.py
index e81921cbb011..81ec1de5922b 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/serialization.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/azure/ai/language/questionanswering/_utils/serialization.py
@@ -787,7 +787,7 @@ def serialize_data(self, data, data_type, **kwargs):
 
             # If dependencies is empty, try with current data class
             # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
+            enum_type = self.dependencies.get(data_type, cast(type, data.__class__))
             if issubclass(enum_type, Enum):
                 return Serializer.serialize_enum(data, enum_obj=enum_type)
 
@@ -821,13 +821,20 @@ def serialize_basic(cls, data, data_type, **kwargs):
         :param str data_type: Type of object in the iterable.
         :rtype: str, int, float, bool
         :return: serialized object
+        :raises TypeError: raise if data_type is not one of str, int, float, bool.
         """
         custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
         if custom_serializer:
             return custom_serializer(data)
         if data_type == "str":
             return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
+        if data_type == "int":
+            return int(data)
+        if data_type == "float":
+            return float(data)
+        if data_type == "bool":
+            return bool(data)
+        raise TypeError("Unknown basic data type: {}".format(data_type))
 
     @classmethod
     def serialize_unicode(cls, data):
@@ -1757,7 +1764,7 @@ def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return
         :param str data_type: deserialization data type.
         :return: Deserialized basic type.
         :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
+        :raises TypeError: if string format is not valid or data_type is not one of str, int, float, bool.
         """
         # If we're here, data is supposed to be a basic type.
         # If it's still an XML node, take the text
@@ -1783,7 +1790,11 @@ def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return
 
         if data_type == "str":
             return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
+        if data_type == "int":
+            return int(attr)
+        if data_type == "float":
+            return float(attr)
+        raise TypeError("Unknown basic data type: {}".format(data_type))
 
     @staticmethod
     def deserialize_unicode(data):
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py
index 6ac76a9a16d7..62fbcad45a80 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase.py
@@ -5,6 +5,7 @@
 # -------------------------------------------------------------------------
 import pytest
 
+from testcase import QuestionAnsweringTestCase
 from azure.ai.language.questionanswering import QuestionAnsweringClient
 from azure.ai.language.questionanswering.models import (
     AnswersOptions,
@@ -16,11 +17,9 @@
 )
 from azure.core.credentials import AzureKeyCredential
 
-from testcase import QuestionAnsweringTestCase
-
 
 class TestQnAKnowledgeBase(QuestionAnsweringTestCase):
-    def test_query_knowledgebase(self, recorded_test, qna_creds):  # standard model usage
+    def test_query_knowledgebase(self, recorded_test, qna_creds):  # standard model usage # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         query_params = AnswersOptions(
             question="Ports and connectors",
@@ -36,7 +35,7 @@ def test_query_knowledgebase(self, recorded_test, qna_creds):  # standard model
             assert answer.qna_id is not None
             assert answer.source
 
-    def test_query_knowledgebase_with_answerspan(self, recorded_test, qna_creds):
+    def test_query_knowledgebase_with_answerspan(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         query_params = AnswersOptions(
             question="Ports and connectors",
@@ -53,7 +52,7 @@ def test_query_knowledgebase_with_answerspan(self, recorded_test, qna_creds):
                 assert answer.short_answer.text
                 assert answer.short_answer.confidence is not None
 
-    def test_query_knowledgebase_filter(self, recorded_test, qna_creds):
+    def test_query_knowledgebase_filter(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         filters = QueryFilters(
             metadata_filter=MetadataFilter(
                 metadata=[
@@ -76,7 +75,7 @@ def test_query_knowledgebase_filter(self, recorded_test, qna_creds):
             )
             assert response.answers
 
-    def test_query_knowledgebase_only_id(self, recorded_test, qna_creds):
+    def test_query_knowledgebase_only_id(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         with client:
             query_params = AnswersOptions(qna_id=19)
@@ -88,11 +87,11 @@ def test_query_knowledgebase_overload_errors(self):  # negative tests independen
         with QuestionAnsweringClient("http://fake.com", AzureKeyCredential("123")) as client:
             # These calls intentionally violate the method signature to ensure TypeError is raised.
             with pytest.raises(TypeError):
-                client.get_answers("positional_one", "positional_two")  # type: ignore
+                client.get_answers("positional_one", "positional_two")  # type: ignore # pylint: disable=too-many-function-args, missing-kwoa
             with pytest.raises(TypeError):
-                client.get_answers("positional_options_bag", options="options bag by name")  # type: ignore
+                client.get_answers("positional_options_bag", options="options bag by name")  # type: ignore # pylint: disable=missing-kwoa
             with pytest.raises(TypeError):
-                client.get_answers(options={"qnaId": 15}, project_name="hello", deployment_name="test")  # type: ignore
+                client.get_answers(options={"qnaId": 15}, project_name="hello", deployment_name="test")  # type: ignore # pylint: disable=no-value-for-parameter
             with pytest.raises(TypeError):
                 client.get_answers({"qnaId": 15}, question="Why?", project_name="hello", deployment_name="test")  # type: ignore
 
@@ -102,4 +101,4 @@ def test_query_knowledgebase_question_or_qna_id(self):
             with pytest.raises(TypeError):
                 client.get_answers(options, project_name="hello", deployment_name="test")
             with pytest.raises(TypeError):
-                client.get_answers(project_name="hello", deployment_name="test")
+                client.get_answers(project_name="hello", deployment_name="test") # pylint: disable=no-value-for-parameter
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase_async.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase_async.py
index 72b11cddd0e8..b8e38dd7134f 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase_async.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_knowledgebase_async.py
@@ -5,6 +5,7 @@
 # -------------------------------------------------------------------------
 import pytest
 
+from testcase import QuestionAnsweringTestCase
 from azure.ai.language.questionanswering.aio import QuestionAnsweringClient
 from azure.ai.language.questionanswering.models import (
     AnswersOptions,
@@ -16,12 +17,10 @@
 )
 from azure.core.credentials import AzureKeyCredential
 
-from testcase import QuestionAnsweringTestCase
-
 
 class TestQueryKnowledgeBaseAsync(QuestionAnsweringTestCase):
     @pytest.mark.asyncio
-    async def test_query_knowledgebase_basic(self, recorded_test, qna_creds):
+    async def test_query_knowledgebase_basic(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = AnswersOptions(
             question="Ports and connectors",
@@ -39,7 +38,7 @@ async def test_query_knowledgebase_basic(self, recorded_test, qna_creds):
             assert answer.metadata is not None
 
     @pytest.mark.asyncio
-    async def test_query_knowledgebase_with_short_answer(self, recorded_test, qna_creds):
+    async def test_query_knowledgebase_with_short_answer(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = AnswersOptions(
             question="Ports and connectors",
@@ -56,7 +55,7 @@ async def test_query_knowledgebase_with_short_answer(self, recorded_test, qna_cr
                 assert answer.short_answer.confidence is not None
 
     @pytest.mark.asyncio
-    async def test_query_knowledgebase_filter(self, recorded_test, qna_creds):
+    async def test_query_knowledgebase_filter(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         filters = QueryFilters(
             metadata_filter=MetadataFilter(
                 metadata=[
@@ -80,14 +79,14 @@ async def test_query_knowledgebase_filter(self, recorded_test, qna_creds):
                 deployment_name="production",
             )
             assert response.answers
-            assert any(
+            assert any( # pylint: disable=use-a-generator
                 [
                     a
                     for a in response.answers
                     if (a.metadata or {}).get("explicitlytaggedheading") == "check the battery level"
                 ]
             )
-            assert any(
+            assert any( # pylint: disable=use-a-generator
                 [
                     a
                     for a in response.answers
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text.py
index 8a9a55f98e8c..872f90610de2 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text.py
@@ -4,16 +4,15 @@
 # Runtime tests: text records querying (authoring removed)
 # -------------------------------------------------------------------------
 import pytest
+from testcase import QuestionAnsweringTestCase
 
 from azure.ai.language.questionanswering import QuestionAnsweringClient
 from azure.ai.language.questionanswering.models import AnswersFromTextOptions, TextDocument
 from azure.core.credentials import AzureKeyCredential
 
-from testcase import QuestionAnsweringTestCase
-
 
 class TestQueryText(QuestionAnsweringTestCase):
-    def test_query_text_basic(self, recorded_test, qna_creds):
+    def test_query_text_basic(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = AnswersFromTextOptions(
             question="What is the meaning of life?",
@@ -33,7 +32,7 @@ def test_query_text_basic(self, recorded_test, qna_creds):
             if answer.short_answer:
                 assert answer.short_answer.text
 
-    def test_query_text_with_str_records(self, recorded_test, qna_creds):
+    def test_query_text_with_str_records(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = {
             "question": "How long it takes to charge surface?",
@@ -57,7 +56,7 @@ def test_query_text_with_str_records(self, recorded_test, qna_creds):
     def test_query_text_overload_errors(self):  # negative client-side parameter validation
         with QuestionAnsweringClient("http://fake.com", AzureKeyCredential("123")) as client:
             with pytest.raises(TypeError):
-                client.get_answers_from_text("positional_one", "positional_two")  # type: ignore[arg-type]
+                client.get_answers_from_text("positional_one", "positional_two")  # type: ignore[arg-type] # pylint: disable=too-many-function-args
             with pytest.raises(TypeError):
                 client.get_answers_from_text("positional_options_bag", options="options bag by name")  # type: ignore[arg-type]
             params = AnswersFromTextOptions(
@@ -65,13 +64,13 @@ def test_query_text_overload_errors(self):  # negative client-side parameter val
                 text_documents=[TextDocument(text="foo", id="doc1"), TextDocument(text="bar", id="doc2")],
             )
             with pytest.raises(TypeError):
-                client.get_answers_from_text(options=params)  # type: ignore[arg-type]
+                client.get_answers_from_text(options=params)  # type: ignore[arg-type] # pylint: disable=no-value-for-parameter
             with pytest.raises(TypeError):
-                client.get_answers_from_text(question="why?", text_documents=["foo", "bar"], options=params)  # type: ignore[arg-type]
+                client.get_answers_from_text(question="why?", text_documents=["foo", "bar"], options=params)  # type: ignore[arg-type] # pylint: disable=no-value-for-parameter
             with pytest.raises(TypeError):
                 client.get_answers_from_text(params, question="Why?")  # type: ignore[arg-type]
 
-    def test_query_text_default_lang_override(self, recorded_test, qna_creds):
+    def test_query_text_default_lang_override(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(
             qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]), default_language="es"
         )
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text_async.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text_async.py
index 7eec7b126fe8..bc297504f87d 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text_async.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/test_query_text_async.py
@@ -4,17 +4,16 @@
 # Inference async tests: text records querying (authoring removed)
 # -------------------------------------------------------------------------
 import pytest
+from testcase import QuestionAnsweringTestCase
 
 from azure.ai.language.questionanswering.aio import QuestionAnsweringClient
 from azure.ai.language.questionanswering.models import AnswersFromTextOptions, TextDocument
 from azure.core.credentials import AzureKeyCredential
 
-from testcase import QuestionAnsweringTestCase
-
 
 class TestQueryTextAsync(QuestionAnsweringTestCase):
     @pytest.mark.asyncio
-    async def test_query_text_basic(self, recorded_test, qna_creds):
+    async def test_query_text_basic(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = AnswersFromTextOptions(
             question="What is the meaning of life?",
@@ -33,7 +32,7 @@ async def test_query_text_basic(self, recorded_test, qna_creds):
             assert answer.id is not None
 
     @pytest.mark.asyncio
-    async def test_query_text_with_str_records(self, recorded_test, qna_creds):
+    async def test_query_text_with_str_records(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]))
         params = {
             "question": "How long it takes to charge surface?",
@@ -73,7 +72,7 @@ async def test_query_text_overload_errors(self):  # negative parameter validatio
                 await client.get_answers_from_text(params, question="Why?")  # type: ignore[arg-type]
 
     @pytest.mark.asyncio
-    async def test_query_text_default_lang_override(self, recorded_test, qna_creds):
+    async def test_query_text_default_lang_override(self, recorded_test, qna_creds): # pylint: disable=unused-argument
         client = QuestionAnsweringClient(
             qna_creds["qna_endpoint"], AzureKeyCredential(qna_creds["qna_key"]), default_language="es"
         )
diff --git a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/testcase.py b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/testcase.py
index 965f9e721089..dd87faa210c9 100644
--- a/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/testcase.py
+++ b/sdk/cognitivelanguage/azure-ai-language-questionanswering/tests/testcase.py
@@ -8,6 +8,6 @@
 class QuestionAnsweringTestCase(AzureRecordedTestCase):
     @property
     def kwargs_for_polling(self):
-        if self.is_playback:
+        if self.is_playback: # pylint: disable=using-constant-test
             return {"polling_interval": 0}
         return {}