oDesk ASP.NET 3.5 Test Answers
·
Ques.1
Which
of the following is/are applicable while using Server Socket Level
communications?
a. A
certificate must be installed on the server.
b. The
certificate must match the web address to prevent a browser warning or error.
c. The
certificate must be issued by an authority recognized by the client computer to
prevent a browser warning or error.
d. All
of the above.
The
answer is: d. All
of the above.
Ques.2
In
which file are Predefined Client Side Validation Scripts defined?
a. WebUIValidation.js
b. ClientValidation.js
c. AspNetValidation.js
d. UserValidation.js
The
answer in: b.
ClientValidation.js
Ques.3
Which
of the following are true regarding the
System.Collections.Generic.HashSet<T> class?
a. HashSet
is an unordered collection.
b. The
default EqualityComparer checks whether the element supplied to the HashSet is
unique or not.
c. HashSet
provides functionality for “conceptual sets” where the rules for membership can
be specified without actually creating all of the items.
The
answer is: b.
The default EqualityComparer checks whether the element supplied to the HashSet
is unique or not.
Ques.4
Which
of the following are true about Extension methods.
a. They
can be either declared either static or instance members.
b. They
must be declared in the same assembly (but may be in different source files)
c. Extension
methods can be used to override existing instance methods.
d. Extension
methods with the same signature for the same class may be declared in multiple
namespaces without causing compilation errors.
The
answer is: a. They
can be either declared either static or instance members.
Ques.5
Which
of the following conditions can trigger the automatic recycling of an ASP.NET
application hosted in IIS?
a. A
specific number of requests to the application process.
b. A
percentage of physical memory utilized by the process.
c. A
specific time interval
d. All
of the above
The
answer is: d. All
of the above
Ques.6
Via
which of the following is ViewState maintained by default?
a. A
hidden variable within the page that is included with each round tip.
b. A
cookie which resides on the client’s computer.
c. A
server side in-process memory cache.
d. Instance
memory variables of the Page class.
The
answer is: a. A
hidden variable within the page that is included with each round tip.
Ques.7
Which
of the following are true about System.Security,Cryptography under version 3.5
of the framework?
a. Support
is provided for the “Suite B” set of cryptographic algorithms as specified by
the National Security Agency(NSA).
b. Cryptography
Next Generation (CNG) classes are supported on XP and Vista systems.
c. The
System.Security.Cryptography.AesManaged.class allows custom block size ,
iteration counts and feedback modes to support any Rijndael based encryption.
The
answer is: b.
Cryptography Next Generation (CNG) classes are supported on XP and Vista
systems.
Ques.8
Which
of the following are recqired to be true by objects which are going to be used
as keys in a System.Collections.HashTable?
a. They
must handle case-senstivity identically in both the GetHashCode() and Equals()
methods.
b. Key
objects must be immutable for the duration they are usedwithin a HashTable.
c. Get
HashCode() must be overridden to provide the same result, given the same
parameters, regardless of reference equality unless the HashTable constructor
is provided with an IEqalitycomparer parameter.
d. Each
Element in a HashTable is stored as a Key/Value pair of the type
System.Collections.DictionaryElement
e. All
of the above
The
answer is: e. All
of the above.
Ques.9
Which
of the following can be used to control caching within an ASP.NET application?
a. Using
the @OutputCache directive in the .aspx file.
b. Setting
the HttpCachePolicy of the Cache property inside the Response object.
c. Using
the Cache property of the Page object.
d. All
of the above
The
answer is: a.
Using the @OutputCache directive in the .aspx file.
Ques.10
Which
of the following are included in the advantages of Lambda Expressions
over Anonymous methods?
a. More
concise syntax
b. The
types of a Lambda Expression may be omitted
c. The
body of an anonymous method can not be an expression
d. Lambda
Expressions permit deferred type inference, that anonymous methods do not
e. All
of the above
The
answer is: a. More
concise syntax
Ques.11
Which
of the following does using Initializer Syntax with a collections as shown
below require?
CollectionClass<int>
numbers = new CollectionClass<int> {0,1,2,3,4,5,6,7,8,9};
a. Collection
class must implement
System.Collections.Generic.ICollection<T>
b. Collection
Class must implement
System.Collections.Generic.IList<T>
c. Each
of the items in the Initializer List will be passed to the Add<T>(T
item) method
The
answer is: b.
Collection Class must implement
System.Collections.Generic.IList<T>
and c. Each of the items in the Initializer List will be passed to
the Add<T>(T item) method
Ques.12:
Which of the following are true about System.Security.Cryptography under version 3.5 of the framework?
a. Support is provided for the "Suite B" set of cryptographic algorithms as specified by the National Security Agency (NSA).
b. Cryptography Next Generation (CNG) classes are supported on XP and Vista systems.
c. The System.Security.Cryptography.AesManaged class allows custom block size, iteration counts and feedback modes to support any Rijndael based encryption.
the answer is: b. Cryptography Next Generation (CNG) classes are supported on XP and Vista systems.
Ques.13:
Which of the following types guarantee atomic reads and writes?
a. int
b. double
c. long
d. float
the answer is: a. int and d. float
Which of the following types guarantee atomic reads and writes?
a. int
b. double
c. long
d. float
the answer is: a. int and d. float
Ques.14:
Which of the following is false about declarative attributes?
a. They must be inherited from the System.Attribute.
b. Attribute classes may be restricted to be applied only to application element types.
c. By default, a given attribute may be applied multiple times to the same application element.
the answer is. b. Attribute classes may be restricted to be applied only to application element types.
Which of the following is false about declarative attributes?
a. They must be inherited from the System.Attribute.
b. Attribute classes may be restricted to be applied only to application element types.
c. By default, a given attribute may be applied multiple times to the same application element.
the answer is. b. Attribute classes may be restricted to be applied only to application element types.
Ques.15: When deleting a data row from the data
row collection of a data table,you can
a.Use the DataRowCollection.Remove method to immediately
delete the row.
b. Use the DataRowCollection.Remove method to mark the row for deletion when DataRow.AcceptChanges is called.
c. Use the DataRow.Delete method to immediately delete the row.
d. Use the DataRow.Delete method to mark the row for deletion when DataRowAcceptChanges is called.
b. Use the DataRowCollection.Remove method to mark the row for deletion when DataRow.AcceptChanges is called.
c. Use the DataRow.Delete method to immediately delete the row.
d. Use the DataRow.Delete method to mark the row for deletion when DataRowAcceptChanges is called.
The answer is : (a). Use the DataRowCollection.Remove method to immediately
delete the row. And (d). Use the DataRow.Delete
method to mark the row for deletion when DataRowAcceptChanges is called.
Ques.16:
Which of the following is NOT a valid C# preprocessor directive?
Which of the following is NOT a valid C# preprocessor directive?
a. #define
b. #line
c. #include
b. #line
c. #include
d. #error
e. #pragma
the answer is: e: #pragma
Ques.17:
When developing a managed client to be used with an existing COM component.________
a. you should modify the COM component to enable CLR functionality.
b. you should use Tlblmp.exe to create a managed wrapper.
c. you should use TlbExp.exe to create a managed wrapper.
d. you should enable an unsafe
code.
the answer is: a. you should modify the COM component to enable CLR functionality.
Ques.18:
Which of the following is true about C# generics?
a. C# allows non-type template parameters.
b. C# supports explicit specialization.
c. C# allows the type parameter to be used as the base
class for generic type.
d. C# allows a generic type parameter itself to be a
generic.
e. C# enforces that all codes are valid for all types of
parameters.
The answer is: d. C# allows a generic type parameter itself to
be a generic.
Ques.19
Which
of the following are true about namespaces & assemblies?
a. A
single assembly may contain multiple namespaces.
b. The
same namespace may be used in multiple assemblies.
c. Namespaces
may be aliased to provide a shorthand notation for a fully qualified
identifier.
d. All
of the above.
The
answer is: d. All
of the above.
Ques.20
Which
of the following are valid as the underlying type for an enumeration?
a. Int
b. Sbyte
c. Long
d. All
of the above
The
answer is: a. Int
Ques.21
Elements
in System.Collections.Specialized.OrderedDictionary are:
a. Sorted
by Key
b. Sorted
by element
c. Not
sorted
The
answer is: a:
Sorted by key
Ques22.
Which
of the following types are derived from System.Reflection.MemberInfo?
a. System.Reflection.PropertyInfo
b. System.Reflection.EventInfo
c. System.Type
d. System.Refection.InstanceInfo
The
answer is: a.
System.Refection.PropertyInfo
b. System.Refection.EventInfo
b. System.Refection.EventInfo
Ques23.
Which
of the following is false about declarative attributes?
a. They
must be inherited from the System Attribute.
b. Attribute
classes may be restricted to be applied only to the application element types.
c. By
default, a given attribute may be applied multiple times to the same
application element.
The
answer is: b.
Attribute classes may be restricted to be applied only to the application
element types.
Ques.24
Custom
non-fatal exceptions should be derived from:
a. ApplicationException
b. DataMisalignedException
c. ExecutionEngineException
d. SystemException
The
answer is: a.
ApplicationException
