IBM Message Broker Interview Question and Answer

IBM Message Broker Interview Question and Answer

Difference between Root and Output Root?

Root is used used in the Database Database content changing and in Filter node. Output Root is used in the ESQL code for a Compute node that creates a new output message based on the input message

Is it possible to set Properties of node apart from right click and setting the properties?

Windows à Show View à Basic à Properties

3) Which interface we have to implement when we are going to create an input custom node? MbInputNodeInterface

Difference between RAD and ORDINARY deployment?

Using Resource adapter deployment, we can reuse the deployment till the server is re booted

Define BROKER, BAR, EXECUTION GROUP, SCADA, and COMPONENTS OF BROKER, WORKBENCH, WORKSPACE, and CMM?

Trusted by over 1 million members

Try Scribd FREE for 30 days to access over 125 million titles without ads or interruptions! Start Free Trial Cancel Anytime.













BROKER: A broker is a set of execution execu tion processes that hosts one or more message flows to route, transform, and enrich inflight messages.

BAR: Flows and sets that are to be deployed are packed in it and sent to configuration manager

EXECUTION GROUP: GROUP:An execution group is a named grouping of message flows that have been assigned to a broker. The broker enforces a degree of isolation between message flows in distinct execution groups by ensuring that they execute in separate address spaces, or as unique processes

SCADA: The SCADAInput node is used to receive messages from clients that connect to the broker across the WebSphere MQ Telemetry Transport. SCADA device clients use the MQIsdp MQIsdp protocol to send messages, which are converted by the SCADAInput node into a format recognized by WebSphere Message Broker. The node also establishes the processing environment for these messages. COMPONENTS OF BROKER: Broker, Configmgr, User name service. WORKBENCH: WORKSPACE:

What is PARSER and difference between PARSER and FORMAT?

A Parser is Parser is defined as a program that interprets the bit b it stream of an incoming message and creates an internal representation of it in a tree structure Ex: MRM parser















What is ResetContentDescriptor node?

Use the ResetContentDescriptor node to request that the message is reparsed by a different parser

What is User name Server and where it is defined? The User Name Server is an optional runtime component that provides authentication of users and groups performing publish/subscribe operations.

What is SCHEMA of broker?

A broker schema is a symbol space that defines the the scope of uniqueness of the names of resources defined within it. The resources are message flows, ESQL files, and mapping files.

How can we see the error log files in broker?

The Windows Event Viewer is where WebSphere Message Broker writes records to the local system. Default properties of Mqinput node?

Property

M C

Default

Description

Message Domain

No No

The domain that will be used to parse the incoming message.

Message Set

No No

The name or identifier of the message set in which the incoming message is defined.

Message Type

No No

The name of the incoming message.















Which node is used to change the message in the flow?

Compute Node, Filter Node and ResetContentDescriptor.

What is the use of commit for connection to Databases?

Any work that has been done using the respective data source in a message flow (including any actions taken in the node) is committed co mmitted regardless of the subsequent success or failure of the message flow

Define Correlation names?

A correlation name is a field reference that identifies a well-defined starting point in the logical message tree and is used in field references to describe a standard part of the tree format.

Functions of ESQL?

MQInput node and INPUT node differences? You must use an Input node to provide the in terminal to a subflow. The Input node provides an in terminal for an embedded message flow (a subflow).

How many Builtin nodes are there? Categories them?

WebSphere Message Broker supplies built-in nodes that you can use to define your message















Input and output

MQInput node MQOptimizedFlow node MQOutput node MQGet node MQReply node Publication node MQeInput node MQeOutput node SCADAInput node SCADAOutput node HTTPInput node HTTPReply node HTTPRequest node Real-timeInput node Real-timeOptimizedFlow node Input node Output node JMSInput node JMSOutput node Message manipulation and transformation















DataDelete node Datalnsert node DataUpdate node Extract node JavaCompute node JMSMQTransform node MQJMSTransform node Mapping node Warehouse node XMLTransformation node

Collating requests

AggregateControl node AggregateReply node AggregateRequest node

Decision making

Check node Filter node FlowOrder node Label node

















TimeoutControl node TimeoutNotification node Validate node

Subflow identification

Passthrough node

Error handling and reporting

Throw node Trace node TryCatch node

What are the perspectives we have?

Administration Perspective Application Development Perspective

















Using mqsicreatebroker command.

Use of Configmanager?

To deploy the message flows onto the Broker.

What is the uniqueness of MB over ICS?

Parallel processing

What is EAI? What are those tools?

Enterprise Application Integration refers to the integration of one or more app lications and processes together. Tools: WBI Message Broker, ICS, WebMethods and Tibco

What is the Broker Domain?

Group of brokers that coordinate a single configuration manager constitute a Broker Domain

















Performance monitoring tools?

WebSphere Application Server , Java Management Extensions (JMX),

Functional Testing and Unit Testing?

Unità testing with different test cases Functional à testing with the exact input

How many objects are required for distribution queuing? QueueManager, SenderChannel, ReceiverChannel, LocalQueue

MQ Objects? Queue manager , Send queue ,Receive queue ,Administration queue, Administration queue ,Restart queue ,Spill queue

Triggering in MQ?

Distribution queuing?

















queue to a communication link, and from a communication link into the target queue.For bidirectional communication you have to define two channel pairs consisting of a sender and a receiver. A Message Queue Interface (MQI) channel connects an MQSeries client to a queue manager in its server machine. Clients don’t have a queu e manager of their own. An MQI channel is bidirectional.

How to configure MQ? By using runmqsc command.

How will you Test your Flows? Using Debugging Mode, Trace Node ..etc..

MQ-triggering, queues, initiation q, deadletter q, process definition, etc.?

What workflow will do? A message Flow is a sequence of processing steps that execute in the broker when an input message when an input message is received.

















A workstation can be a client c lient and a server. A server is an intermediate node between other nodes. It serves clients that have no queue manager and manages the message flow between its clients, itself and other servers. In addition to the server software you may install the client software, too. This configuration is used in an application d evelopment environment

Connection:

strmqm QMA

start runmqlsr -t tcp -m QMA -p 1414 runmqsc start channel (QMA.QMB) end

How will you install and configure CVS & How will you use in MB? Double-click the Windows cvsnt-2.0.5.exe file to launch the installer. Displays CVS Setup

window appears

Select the option to accept the licence agreement and click Next. Select Destination Directory screen, the default installation location is set to Workspace\cvsnt. If you have enough eno ugh space to install to this location click Next.



















The Ready to Install screen lists the options you have selected. Click Install to start the installation. A progress bar appears while the files are copied. Finally, click Finish when the completion window appears. Reboot the system. The installation of the CVS server is now complete.

Event Monitoring? (Performance monitoring–> Queue depth event)? Q Depth High,Q Depth Low,Q Depth Full

How will we use a Cobol copybook in MB?

You can populate your you r message set with message definitions by importing COBOL copybook files, using either the New Message Definition File wizard or the mqsicreatemsgdefs command line utility. Types of messages?



















Destination Q is full Destination Q doesn’t exist Msg too large Sender is not authorized to use the destination Q

How many types of clients in MQ?

Two Types à Fat Clients à Slim clients

MQ commands?

CRTMQM



















Difference between MQCONN and MQCONNX? MQCONN ( MQSTATE MQSTATE , qManagerName ) : Connects to a queue manager, which is identified by qManagerName, a string of up to 48 characters. MQSeries sets the connection handle (MQSTATE.hconn) for use in subsequent calls.

MQCONNX ( MQSTATE MQSTATE , qManagerName , MQCNO ): Connects to a queue manager with options that control the way that the call works. The queue manager is identified by qManagerName, a string of up to 48 characters. MQSeries sets the connection handle (MQSTATE.hconn) for use in subsequent calls.

Difference between MQPUT and MQPUT1?

MQPUT( MQSTATE MQSTATE , MQMD , MQPMO , BUFFER) : Adds a message to the queue. The buffer



















Target Q, Receiver channel and Listener

How to get the depth of a queue?

By using MQSC property CURDEPTH

What formats MB support?

XML, TDS, CWF, EDI, SWIFT

Where do you place pass-thru node in message flow?



















Difference between compute and mapping node?

In the compute node we can change the headers but in Mapping node we can’t change.

Types of Queues in MQ?

local queue Remote queue Transmission queue Alias queue Dead letter queue

How do you test your message flows and design test case?





















Advantages of compute node?

To construct one or more new output messages. To build a new message using a set of assignment statements. To opy messages between parsers To convert messages from one code set to another To transform messages from one format to another





















Wildcard characters Default topic routing Retained publications Metatopics Subscription points Content-based filtering Throughput





















AggregateReply

Filter node? To route a message according to message content.

Database node?

To interact with a database in the specified ODBC data source.





















About Resetcontentdescripter node, Label node?

Resetcontentdescripter Node: Node: To request that the message is reparsed by a different parser. Label Node: use it in combination with a RouteToLabel node to to dynamically determine the route that a message takes through the message flow, based on its content. The RouteToLabel node interrogates the Local Environment of the message to determine the identifier of the Label node to which the message must next be routed.





















Service trace. User: used for debugging your applications. It can trace brokers, execution groups, and Deployed message flows. Service: More comprehensive Broker tracing. It starts tracing for workbench, co nfiguration Manager, username server.

What is an Execution Group?























How to connect Broker in MB?

From Broker domain, using ConfigMgr.























In route to label node where we will gave label name, and syntax of the label name?

SET OutputLocalEnvironment.Destination.RouterList.DestinationData.labelname=’name of the























Are there any wire formats that MB support other than xml and cwf?























If new functionalities (new nodes) are added how will you implement in Interface?























SET OutputRoot.MQRFH2.psc.QName = ‘PUBOUT’; SET OutputRoot.MQRFH2.psc.RegOpt= ‘PersAsPub’;

































































































































































































































































































































































































IBM Message Broker Interview Question and Answer

Recommend Documents