Refer to the exhibit.
A FortiWeb appliance is configured for load balancing web sessions to internal web servers. The Server Pool is configured as shown in the exhibit.
How will the sessions be load balanced between server 1 and server 2 during normal operation?
The load-balancing configuration in the exhibit specifies 'weighted-round-robin' as the algorithm. This means that sessions are distributed among servers based on their weight. Server 1 has a weight of 50 and Server 2 has a weight of 100. The proportion of sessions each server will receive can be calculated using the formula: weight_of_server / (sum_of_weights). For Server 1, this is 50 / (50 + 100) = 50 / 150 ≈ 0.333, or about 33.3%, and for Server 2, this is 100 / (50 + 100) = 100 / 150 ≈ 0.666, or about 66.6%. Therefore, Server 1 will receive approximately 33.3% of the sessions, and Server 2 will receive approximately 66.6% of the sessions. This makes option A incorrect. Given the weights provided, none of the other options match the calculated values accurately.
FortiWeb only routes connections for the pool to a backup server when all the other members of the server pool fail their server health check. The backup server mechanism does not work if you do not specify server health checks for the pool members.
A is correct The Server Pool in the exhibit is configured with a weight of 20 for server 1 and a weight of 60 for server 2. This means that server 1 will receive 20% of the sessions and server 2 will receive 75% of the sessions. The following formula is used to calculate the load balancing between servers in a Server Pool: weight_of_server_1 / (weight_of_server_1 + weight_of_server_2) In this case, the formula is: 20 / (20 + 60) = 20 / 80 = 0.25 = 25% Therefore, server 1 will receive 25% of the sessions and server 2 will receive 75% of the sessions.
where do you see 20 and 60 ?
weighted-round-robin—Distributes new connections using the round robin method, except that members with a higher weight value receive a larger percentage of connections. server-balance {enable | disable} >> Specifies whether the pool contains a single server or multiple members. If the value is enabled, FortiWeb uses the specified load-balancing algorithm to distribute TCP connections among the members