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Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:

1. In the PIM-SM protocol, the DR connected to the multicast receiver is charge of sending a unicast Register message to the RP.

A) True
B) False

2. Which of the following description of the virtual link is wrong?

A) The existence of virtual links increases the complexity of the network.
B) Virtual links may bring loops.
C) The time interval for sending HELLO on the virtual link is 10s.
D) If there is a virtual link in the network, it usually indicates that the network design has problems and needs to be optimized.

3. Regarding the description of OSPF external route types, which is wrong?

A) The cost of the first external route of OSPF is the sum of the internal cost of AS (the router-to-ASBR overhead) and the AS external cost.
B) With the same other conditions, the first type of external route of OSPF is always preferred over the second type of external route.
C) The cost of the second type of OSPF external route is AS external cost.
D) OSPF is divided into the first type of external routes and the second type of external routes.

4. Port isolation provides users with more safer and more flexible networking solution.
The following description about port isolation, which is incorrect?

A) Port isolation command port-isolate enable specifies the port configuration in global mode.
B) Port isolation must be configured on the ports that need to be configured for port isolation.
C) In the default mode, port isolation is Layer 2 isolation and Layer 3 interworking.
D) Port isolation can be used to configure Layer 2 isolation.

5. Regarding the role of route filtering, which of the following description is correct?

A) Avoid routing loops caused by inappropriate route feedback
B) Can not avoid the sub-optimal routing caused by the introduction of rabbit routes
C) Unavoidable routing loop caused by inappropriate routing feedback
D) Can be used for precise route import and route advertisement control

Solutions: