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BEA Weblogic Interview Question:
The Multicast TTL setting for a cluster in the WebLogic Admin console sets which of the following values?
Submitted by: AdministratorThe Multicast TTL setting for a cluster in the WebLogic Admin console sets which of the following values?
a. Maximum time taken for multicast messages to reach their final destination
b. The number of routers a multicast message can pass through before the packet can be discarded
c. The multicast address to be used by the messages sent from the cluster
d. Minimum time taken for broadcasting a multicast message from the cluster
Choice B is correct. The Multicast TTL(TTL-Time to Live) setting specifies the number of routers a multicast message can pass through before the packet can be discarded. To configure the multicast TTL for a cluster, you should change the Multicast TTL value in the WebLogic Server administration console. This sets the number of network hops a multicast message makes before the packet can be discarded.
If you choose to distribute a cluster over a WAN (or across multiple subnets), you must plan and configure your network topology to ensure that multicast messages are reliably transmitted to all servers in the cluster. One of the requirements to be met by the network is that the multicast Time To Live (TTL) value must be high enough to ensure that routers do not discard multicast packets before they reach their final destination.
Submitted by: Administrator
a. Maximum time taken for multicast messages to reach their final destination
b. The number of routers a multicast message can pass through before the packet can be discarded
c. The multicast address to be used by the messages sent from the cluster
d. Minimum time taken for broadcasting a multicast message from the cluster
Choice B is correct. The Multicast TTL(TTL-Time to Live) setting specifies the number of routers a multicast message can pass through before the packet can be discarded. To configure the multicast TTL for a cluster, you should change the Multicast TTL value in the WebLogic Server administration console. This sets the number of network hops a multicast message makes before the packet can be discarded.
If you choose to distribute a cluster over a WAN (or across multiple subnets), you must plan and configure your network topology to ensure that multicast messages are reliably transmitted to all servers in the cluster. One of the requirements to be met by the network is that the multicast Time To Live (TTL) value must be high enough to ensure that routers do not discard multicast packets before they reach their final destination.
Submitted by: Administrator
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