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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question 1

According to Nquist 's theorem, the telephone system samples human voice ______ times per second in order to fully express the characteristics of the voice signal.( Fill in Arabic numerals )

Question 2

The advantages of modular network architecture include ____ .( Choose one or more )

A. for each module can be separately planning and deployment, network functions can be added or removed, and conducive to building a complex network module by way of additions and deletions.
B. taken on behalf of the traditional hierarchical network model, to facilitate planning and deploying the network.
C. allowed to share data, resources and capacity among many different application functions or applications, participate in business processes.
D. Yun Xu dynamically invoked through open interfaces IT resources to achieve the standard, compatibility, security, intelligent and manageable IT environments.

Question 3

Which of the following descriptions about GRE VPN configuration is correct is ____ .( Choose one or more )

A. lack of provincial case, the Tunnel Interface packet encapsulation mode as GRE
B. with home GRE VPN when, regardless of static routing or dynamic routing, the Tunnel interfaces should start Keepalive function, to detect the actual work of the tunnel interface
C. Tunnel source address and a destination address uniquely identifies an interface of a tunnel, at the ends of the tunnel Tunnel source address and destination address from the interface must be the same
D. After the keepalive function is enabled on the tunnel interface , by default, once the router fails to receive the keepalive message from the other party for three times , the tunnel is considered unavailable

Question 4

IntServ model has the following features ?

A. mention for absolute and accurate QoS guarantee, does not change with network status affected
B. be to track and record the state of each stream, good scalability
C. can to a large-scale deployment in the Internet
D. can to provide end to end QoS service

Question 5

From the perspective of network level, business or application, network security threats come from _____ .

A. network security threats, network layer
B. disease threats toxic
C. should be threatened with a security layer
D. Ann -wide threat posed by loopholes in the system
E. set up equipment on their own physical security threats

Solutions: