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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. How do the calling UA and the called UA negotiate the media types and encoding methods supported by both parties ?

A) Double side by exchanging message header capabilit field indicates the UAC / UAS supported media type and encoding
B) to the answers are right
C) Dual side by exchanging message body SDP indicated UAC / UAS supported media type and encoding
D) When the UA registers with the registration server, it will register its own capabilities with the server, and the caller and the called party will know the capability set of the other party by querying the server

2. Which statement about LR is correct?

A) so that the flow rate is measured using the token bucket algorithm, would exceed the committed rate of packets into the queue buffer again, it reduces the overall packet loss rate, smooth traffic, introduces additional delay.
B) bits at the link layer, all packets outgoing from the interface can take effect ( critical packets except packets )
C) Not valid for non- IP packets
D) It is an active traffic adjustment measure that limits the total rate of packets sent downstream from an interface

3. The following are symmetric key algorithms

A) AES
B) RSA
C) DES
D) DSA

4. Which of the following statements about LR is incorrect is

A) bits in the network disk, all the heat out from the interface can take effect
B) Not valid for non- IP packets
C) so that the flow rate is measured using the token bucket algorithm, would exceed the committed rate of packets into the queue buffer again, it reduces the overall packet loss rate, smooth traffic, introduces additional delay
D) It is an active traffic adjustment measure, which limits the total rate of packets sent from one port to the bottom

5. In a VoIP network where calls are made through a gatekeeper , what will happen when the gatekeeper cannot determine the location information of the called terminal within its jurisdiction ?

A) Reply to the caller with a permission rejection ( ARJ ) message
B) to the answers are right
C) Reply to the caller with a location rejection ( LRJ ) message
D) The calling party replies to the gatekeeper rejection ( GRJ ) message

Solutions: