How many times will a Shazzam probe be launched during discovery?

A Discovery Schedule contains a /24 subnet IP Range and a Shazzam batch size of 5000.

How many times will a Shazzam probe be launched during discovery?
A . 1
B . 2
C . 5000
D . 254

View Answer

Answer: C

Explanation:

A /24 subnet IP Range means that there are 256 possible IP addresses in the range, from 0 to 255. A Shazzam batch size of 5000 means that Discovery will send 5000 ICMP packets at a time to scan the IP addresses. Therefore, Discovery will launch the Shazzam probe once for every 5000 IP addresses in the range, or 256 / 5000 = 0.0512 times. Since the number of times must be an integer, Discovery will round up to 1 and launch the Shazzam probe once. However, since the Shazzam probe is launched for each MID Server that is assigned to the Discovery Schedule, the actual number of times will depend on how many MID Servers are available. If there are N MID Servers, then the Shazzam probe will be launched N times, each sending 5000 ICMP packets to the same IP range. Therefore, the total number of times that the Shazzam probe will be launched during discovery is N * 1 = N.

Reference: Discovery Schedule form

Shazzam Probe

Discovery IP range