HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) Set 5

1.

A BGP finite state machine has the following states:
Active
OpenConfirm
Idle
Established
OpenSent
What is the state transition sequence to establish a successful BGP peer relationship?

Idle-OpenSent-OpenConfirm-Active-Established Idle-Active-OpenSent-OpenConfirm-Established Active-Id le-OpenSent-OpenConfirm-Established Idle-Active-OpenConfirm-OpenSent-Established

2.

How does community attribute of the BGP route set by routing policies affect route selection?

The Community attribute directly affects route selection because it must be compared during the route selection process. The Community attribute does not affect route selection because it is non-transitive and cannot be transmitted between routers. Routes are classified by the Community attribute which indirectly affects route selection. Different route attributes such as the Local-Preference and MED values can be set for routes in different communities.

3.

Which port number is used by BGP to establish a TCP connection?

520 89 179 I80

4.

What are the functions of route filtering? (Select 3 answers)

Avoids sub-optimal routes generated during route import, Avoids routing loops. Affects route selection by changing route attributes. Implements accurate route importing and controls route advertisement.

5.

ACLs can match routing information or data packet addresses to filter unmatched routing information or data packets.

1

6.

IGP routes can be installed into the BGP routing table by running either the network or import-route command.

1

7.

What is the function of well-known community attribute NO_EXPORT_SUBCONFED in BGP?

Routes received carrying this value cannot be advertised outside of the confederation. Routes received carrying this value cannot be advertised to any BGP peers. Routes received carrying this value cannot be advertised to any EBGP peers. All above statements are wrong

8.

What is the link-state ID of an ASBR-Summary-LSA?

The OSPF Router ID of an LSAs originator The Interface IP address of the DR on the described network segment The address of the described network segment The Router ID of the described ASBR

9.

What is the network address for the IP address 190.233.27.13/16?

190.0.0.0 190.233.0.0 190.233.27.0 190.233.27.1

10.

Which of the following statements are correct regarding BGP attributes? (Select 2 answers)

Till now, there are 16 BGP attributes BGP attribute can be extended to 256 types Well known discretionary attribute may not be included in each BGP update message, such as origin attribute AS_PATH is an optional transitive attribute

HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) Set 5

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HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) Set 5

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