Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) : H12-221-ENU

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Huawei H12-221-ENU Exam Syllabus Topics:

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

1. Which command can be used to check the statistics of the routes calculated by the OSPF process?

A) display ospf cumulative
B) display ospf global-statistic
C) display ospf request-queue
D) display ospf spf-statistics

2. Which description about BGP state machine is wrong?

A) In the Idle state, BGP rejects any access connection request and is the BGP initial state.
B) In the Active state, BGP will attempt to establish the access TCP connection, which is the intermediate state of BGP.
C) In the Established state, BGP peers can exchange Update messages, Route-refresh messages, Keepalive messages, and Notification messages.
D) The status of both BGP peers must be OpenConfirm before the BGP neighbor relationship can be established. The two parties exchange routing information through Update messages.

3. Which of the description of the shortest path tree for OSPF is correct?

A) The first phase calculates the routing node and Transit network segment, and the second stage calculates the Stub network segment.
B) The first stage calculates the Stub network segment, and the second phase calculates the router node and Transit segment.
C) The first phase calculates the routing node and the second stage calculates the Stub network segment.
D) The first stage calculates the Stub network segment, and the second phase calculates the routing node.

4. In a multicast network environment, if IGMPv1 hosts and IGMPv2 routers (hereinafter referred to as version 1 hosts and version 2 routers) are co-located on the same LAN, how do they work together? (Multiple Choice)

A) Version 2 routers must set a group-related countdown timer that considers the existence of the Version 1 host.
B) If there is a version 1 host in the LAN, all hosts must be required to use version 1.
C) If a version 1 host exists in a specific group, the version 2 router must ignore any outgoing messages received in that group.
D) Membership reports sent by version 1 hosts are always received by version 2 routers.

5. Which of the following is wrong about multicasting? (Multiple choices)

A) The unicast technology and broadcast technology can't solve the problem of single send and multi-point receive. Only multicast technology can solve it.
B) Multicast technology is used in most "single-to-multiple" data distribution applications.
C) Multicast technology can reduce redundant traffic and save network bandwidth.
D) Because multicast technology is based on TCP, multicast technology can ensure the reliable transmission of packets.

Solutions: