The network administrator of Certkiller wants to know what object counter is used to see the number of times a work item was not available for allocation to an incoming request.

A.
Server: Work Item Shortages

B.
Server: Sessions Errored Out

C.
Current Commands

D.
Network Segment: % Network Utilization

Explanation:
Server: Work Item Shortages: Indicates the number of times a work item was not available for allocation to an incoming request.
Incorrect
Answers:
B: Server: Sessions Errored Out: Indicates the number of sessions terminated due to unexpected error conditions. This cumulative counter indicates network problems related to dropped server sessions.
C: Current Commands: Displays the number of requests currently queued for service by the Redirector.
D: Network Segment: % Network Utilization: Displays the percentage of available bandwidth actually being used for communications and data transmission.
References:

Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 342, 343