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1. Cross-device link aggregation enables data stream transmission and mutual backup of stack member
switches. However, because of the limited bandwidth of stack cables between stack devices, which of the
following methods can be used to improve forwarding efficiency?
A. Connect stack devices through stack cards
B. Enable stack multiple master check function
C. Configure stack system MAC address switching
D. Enable traffic local priority forwarding
2. About the description of CHAP authentication function in the PPP protocol, which of the following are
correct? (Multiple Choice)
A. If the authenticator does not have a username, the password cannot be configured on the
B. Calculate a hash value using the authentication sequence ID, random number, and key by the MD5
C. Three-message interactive authentication is required, and the username is transmitted only on the
network without transmitting the password.
D. The user name must be configured under the authenticated interface of CHAP authentication.
3. A switch is running the Rapid Spanning Tree Protocol (RSTP).
Upon a topology change, what happens to dynamic entries in the L2 forwarding table?
A. Only entries behind the port where TC was received are removed.
B. All entries are removed except for those behind edge ports and the port where TC was received.
C. All entries are removed (purged).
D. All entries are removed except for entries behind edge ports.
E. The aging timer is set to 15 seconds, so idle entries age out.
4. Which of the following statements is true about the MUX VLAN feature of Huawei switches?
A. The MUX VLAN and the Super VLAN features can be used together on the same VLAN.
B. The Principal Port can communicate with all ports in the MUX VLAN.
C. The Mux VLAN is classified into Principal VLAN and Subordinate VLAN. The Subordinate VLAN is
classified into Separate VLAN and Isolate VLAN.