单项选择题
A. Routing contexts are implemented in a single routing process.
B. Routing contexts are implemented using multiple roubng processes.
C. Routing contexts are implemented as a single instance of several routing processes.
D. Routing contexts are implemented as several instances of a single routing process.
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?（）
单项选择题 As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）
单项选择题 When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）