Which of the following counters shows the number of times allocations from the paged pool have failed?

A.
Pool Non-paged Failures

B.
Pool Paged Failures

C.
Bytes Total/sec

D.
None of the above.

Explanation:
Pool Paged Failures reflects the number of times allocations from the paged pool have failed. If this value is less than 1 on a regular basis, either your physical memory is too small for the selected server application, or you need to increase the paging file size.
Incorrect Answers
A: This value reflects the number of times allocations from the non-paged pool have failed.
C: This is the sum of Frame Bytes/sec and Datagram Bytes/sec.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, p. 351