多项选择题
What are two requirements to perform a warm Cisco IOS upgrade on a Cisco ISR router? （）(Choose two.)
A. at least one enabled Ethernet interface
B. Cisco IOS version 12.3(2)T or greater
C. enough memory to decompress the new Cisco IOS image
D. internal flash memory equaling two times the space required for the current Cisco IOS image
单项选择题 With respect to a computer file system, an access control list (ACL) is a list of permissions attached to an object. Which of the following makes forwarding decisions in hardware?（）
单项选择题 As an experienced technician, you are responsible forT echnical Support in your company. One of the trainee implement RIP routing contests in MPLS VPN. How to respond?（）
单项选择题 You are working with CIS .com. who has identified the following IP applications on their network: IP voice and voice signaling, streaming video, PeopleSoft, Microsoft SQL, e-mail, and Internet traffic. If the voice traffic was classified as EF and AF31, the e-mail was classified as AF11, and the Internet traffic was classified as DSCP 0, how would the transactional traffic represented as PeopleSoft and Microsoft SQL be classified?（）