CCDP系列认证CCDP(642-873)单项选择题每日一练(2019.01.22)

单项选择题
For acceptable voice calls， the packet error rate should be no higher than what value？（）
A.0.1%
B.1%
C.2.5%
D.25%
单项选择题
In base e-Commerce module designs， where should firewall perimeters be placed？（）
A.core layer
B.Internet boundary
C.aggregation layer
D.aggregation and core layers
E.access and aggregation layers
单项选择题
When dealing with transparent caching, where should the Content Engines be placed?（）
A. close to the servers
B. close to the end users
C. at the Internet edge
D. in front of web server farms
单项选择题
Which routing protocol supports a flexible area structure using routing levels one and two?（）
A.OSPF
B.EIGRP
C.IS-IS
D.BGP
单项选择题
What is a criteria of the enterprise composite network model?（）
A. includes all modules needed to meet any network design
B. defines flexible boundaries between modules for scalability requirements
C. clearly defines module boundaries and demarcation points to identify where traffic is
D. requires specific core, distribution, and access layer requirements to match the model