Which of the following are recommendations for installing and upgrading NICs? Choose all correct options.

A.
Install 32-bit or 64-bit PCI bus-mastering NICs.

B.
Uninstall all protocols and NICs not being used to improving performance.

C.
If you cannot use NICs at identical speeds throughout the network, you should at least do so within each network segment

D.
Use multiple vendor’s so that at least one is available for support purposes.

Explanation:
These options include strategies that can assist in reducing network bottlenecks.
Incorrect Answers:
D: You should use a single vendor, and not multiple vendors. Using a single vendor reduces administration and driver management efforts.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 343-344.