Which two practices are associated with securing the features and performance of router operating systems? (Choose two.)

Which two practices are associated with securing the features and performance of router operating systems? (Choose two.)

• Install a UPS.
• Keep a secure copy of router operating system images.
• Configure the router with the maximum amount of memory possible.
• Disable default router services that are not necessary.
• Reduce the number of ports that can be used to access the router.

Explanation: Configuring a router with maximum available memory allows support for the widest range of security services and can help to protect against certain DoS attacks. Secure copies of router operating system images and configuration files provide backups needed for device recovery. Installing a UPS device provides physical security for networking devices but does not affect the security of their operating systems. Disabling unnecessary ports and services is part of the process of router hardening, and does not specifically involve the router operating system.

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