Technical Interview Questions and Answers :: WebMethod

(i)Unicast - One source and one known destination. Point to point
(ii)Multicast - One source and multiple limited known destination. we need to provide Range of IP address to send message in multicast.
e.g - 192.168.35.200-255
(iii)Publishing - One source and multiple destination- One to many

Default cache for webmethods is EHCACHE

(i) Stateless - If one server in cluster goes down during request process. the data will be lost.
(ii) Stateful - No data loss. It required below for clustering.
Same OS, Database, Port, adapters, Time Zone, messaging, connection, prefix.

(i) Required Certificate - Certificate must for authentication.
(ii) Request Certificate - If certificate not provided then it will ask for username

(i) Direct invocation only use get methods other http method not possible. In REST service all http methods get, put, post and delete can be used.
(ii) Cannot pass input such as document, XMl, JSON or Java script. In REST service all type of input variable can be passed.

Heap: All object stored in heap memory and it is dynamic.
Stack: All static variable stored in stack

you can define trading partner agreements for pairs of partners. Each TPA contains specific information for two trading partners, where one partner represents a sender and the other represents the receiver. You can create applications that use TPA information to tailor how documents are exchanged. Other webMethods components (e.g., webMethods EDI Module) use TPAs to perform processing.

(i) Universal Messaging is a Message Orientated Middleware product that guarantees message delivery across public, private and wireless infrastructures.
(ii) Universal Messaging has been built from the ground up to overcome the challenges of delivering data across different networks.
(iii) It provides its guaranteed messaging functionality without the use of a web server or modifications to firewall policy.
(iv) Universal Messaging design supports both broker-based and umTransport communication,and thus comprises client and server components.

(i) UM Support multicast, Broker does not.
(ii) UM support Active-Active Cluster, Broker support Active-Passive cluster
(iii) Broker has default broker monitor, UM does not have such thing.

A Universal Messaging Realm is the name given to a single Universal Messaging server. Universal Messaging realms can support multiple network interfaces, each one supporting different Universal Messaging protocols. A Universal Messaging Realm can contain many Channels or Message Queues.
Zones: Zones provide a logical grouping of one or more Realms which maintain active connections to each other. Realms can be a member of zero or one zone, but a realm cannot be a member of more than one zone . Realms within the same zone will forward published channel messages to other members of the same zone, if there is necessary interest on corresponding nodes.