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AppleTalk - Network Components ?

Posted By :Shashi Ray     Posted Date :March 31, 2010    Points :10   Category :Networking 
1. Sockets - Location in AppleTalk node which is recognized by a unique address.

2. Nodes - Device which is a part of an AppleTalk network e.g. computer, printer or router .

3. Networks - Consists of a cable with multiple nodes connected to the cable .

4. Zones - Constitutes a group of nodes and network which are logically associated .

You can also find related Interview Question to AppleTalk - Network Components ?  below: 

AppleTalk - Network Address ?

1. AppleTalk uses addressing to identify and recognize every device on a network similar to other common protocols .

2. Address is broadcast to all other nodes to determine whether it has been already utilized.

3. Fields in AppleTalk network address:

Network number
Node number
Socket number (More...)

What are the major data structures used in RDBMS, Network data model & Hierarchical data model.

RDBMS - Array (i.e. Array of structures)
Network data model - Graph
Hierarchical data model - Trees (More...)

Can .NET Framework components be used from a COM program?


Managed types you build today can be made accessible from COM, and in the common case the configuration is totally automatic. There are certain new features of the managed development environment that are not accessible from COM. For example, static methods and parameterized constructors cannot be used from COM. In general, it is a good idea to decide in advance who the intended user of a given type will be. If the type is to be used from COM, you may be restricted to using those features that are COM accessible.
Depending on the language used to write the managed type, it may or may not be visible by default.
Specifically, .NET Framework components are accessed from COM by using a COM callable wrapper (CCW). This is similar to an RCW (see previous question), but works in the opposite direction. Again, if the .NET Framework development tools cannot automatically generate the wrapper, or if the automatic behavior is not what you want, a custom CCW can be developed.

Shashi Ray (More...)

What are basic components of Notification services?

Notification Services applications are based on a subscriber/subscription model.
The Key components in a Notification Services application are

A user or application that requests and receives the notification

A request for information, delivery mechanism, and destination for requested notifications. For example change of a stock price.

A piece of information, in which the subscriber is interested. For example as soon as a stock price has changed an event can be generated that's processed within SQLNS.

A message containing the information requested by the subscriber in the subscription (More...)

What are the essential components of SQL Server Service broker?

Service Broker uses queues to provide loose coupling between the message sender and the message receiver. The sender can put a message in a queue and then continue on with the application, relying on Service Broker to ensure that the message reaches its destination. Queues permit a lot of scheduling flexibility.

Dialogs are bidirectional streams of messages between two endpoints. All messages in a dialog are ordered, and dialog messages are always delivered in the order they are sent. The order is maintained across transactions, across input threads, across output threads, and across crashes and restarts.

Conversation Groups
It's a way of grouping all the dialogs that are used for a particular task. All the dialogs associated with processing a particular order would be grouped into a single conversation group. The conversation group is implemented as a conversation group identifier, which is included with all messages in all dialogs contained in the conversation group. When a message is received from any of the dialogs in a conversation group, the conversation group is locked with a lock that is held by the receiving transaction. For the duration of the transaction, only the thread that holds the lock can receive messages from any of the dialogs in the conversation group. This makes our order entry application much easier to write because even though we use many threads for scalability, any particular order is only processed on one thread at a time. This means we don't have to make our application resilient to problems that are caused by the simultaneous processing of a single order on multiple threads.

You use the activation feature of Service Broker to specify a stored procedure that will handle messages destined for a particular service. When messages arrive for a service, Service Broker checks whether there is a stored procedure running that can process the messages. If there isn't a running message-processing stored procedure, Service Broker starts one. The stored procedure then processes messages until the queue is empty, after which it terminates. Moreover, if Service Broker determines that messages are arriving faster than the stored procedure can process them, it starts additional instances of the stored procedure until enough are running to keep up with the incoming messages (or until the configured maximum number is reached). This ensures that the right number of resources for processing incoming messages are always available. (More...)

What are the main components of IIS 7.0?

Main Components of IIS 7.0 are HTTP.Sys, Svchost.Exe, Application Pool , Worker Process (W3WP.exe) and Configuration Store. (More...)

What do you mean by ActiveX components?

ActiveX control is a special type of COM component that supports a User Interface. Using ActiveX Control in your .Net Project is even easier than using COM component. They are bundled usually in .ocx files. (More...)

What are the components of .NET DataProvider?

The .NET DataProvider is a set of components that includes the Connection, Command, DataReader and DataAdapter objects. It is used for connecting to a database , executing commands and retrieving results. Using the .NET data provider we can either access database directly or use the disconnected approach. For the disconnected approach we use DataSet class.

Connection Object:-It is used to connect to the data source. Data source can be any database file. The connection object contains information like the provider name, server name, datasource name, user name and password.

Command Object:- It is used for connect the connection object to a DataReader or DataAdapter object. The command object allow us to execute SQL statement or a stored procedure in a data source.

DataReader Object:- It is used to read the data in a fast and efficient manner from the database. It is generally used to extract one or a few records or specific field values or to execute simple SQL statement.

DataAdapter Object:- It is used to fill data from the database into the DataSet object. it is use din the disconnected approach. (More...)

What do you mean by network communication standards?

Network communication standards are certain rules and specifications framed by standard organisations for manufacturing network hardware and developing network software.

Major communication standards have been formed by the organisations like ISO, IEEE etc. (More...)

In an IP address can a network ID be 127?

No, a network ID can't be 127. Because 127 is not assigned to any IP address classes. It is reserved. (More...)

What is datagram in a TCP/IP network?

At the network layer of TCP/IP model the data unit created is called the datagram. (More...)

Computer Network?

1.Interconnection of two or more computers and peripherals

2.Allows user to share and transfer information (More...)

Local Area Network (LAN)?

1. Covers a small area
2. Connects computers and workstations covering a local area like, office or home (More...)

Campus Area Network (CAN)?

1. Made up of multiple LANs within limited area
2. Connects different LANs in a campus (More...)

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