Which of the following searches will return all clientip addresses that start with 108?

The 'where like(field, pattern)' syntax applies pattern matching where '%' acts as a wildcard for zero or more characters. Using 'like(clientip, "108.%")' correctly matches all clientip values beginning with '108.', returning every IP address in that range regardless of what follows.

Option B omits the required 'like' keyword; 'where (field, pattern)' is not valid Splunk SPL syntax and will not perform pattern matching.

Option C uses an unquoted assignment-style expression without the 'like' function, which is not valid SPL syntax for the where command and will not produce wildcard matching.

Using 'search clientip=108' performs a literal string match on the value '108' only; it would not match addresses like '108.1.2.3' that start with but extend beyond that exact string.