H12-221 HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) Questions and Answers

Which of the following route prefixes match the IP-prefix-filter given below?

"ip ip-prefix test index 10 permit 10.0.0.0 16 greater-equal 24 less-equal 28" (Select 3 answers)

Based on BGP route selection rules, how are Origin attributes listed in descending order of priority?

Which statements about OSPF packets are true? (Select 3 answers)

Which of the following statements about OSPF neighbor state transition are true? (Select 3 answers)

Routes 172.1.12.0/24, 172.1.13.0/24, 172.1.14.0/24, and 172.1.15.0/24 can be summarized into route 172.1.8.0/21.

Which of the following statements regarding RPs are true? (Select 3 answers)

Which methods can be used to import local routes into BGP? (Select 2 answers)

The bandwidth-reference parameter is measured in Mbit/s.

If the subnet mask for Class A address is 255.255.240.0, how many bits are used for subnetting?

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

The OSPF Router ID of an LSA's 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

How many Class C networks does the summarized route 192.168.134.0/22 cover?

Which of the following parameters are optional when configuring a BGP peer? (Select 2 answers)

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

Which of the following BGP attributes is an optional transitive attribute?

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

Assume that the following commands are run to configure BGP

timer keepalive 30 hold 90

peer 1.1.1.2 timer keepalive 10 hold 30

Which statements regarding the configuration are true? (Select 2 answers)

A Router ID is optional in the OSPF configuration.

Which of the following BGP attributes can prevent routing loops? (Select 3 answers)

dis igmp group verbose

IGMP interface group report information

Ethernet6/1/0(10.1.1.1):

Total 1 IGMP Group reported

Group: 225.0.0.1

Uptime: 00:09:03

Expires: 00:02:09

Last reporter: 10.1.1.30

Last-member-query-counter: 0

Last-member-query -timer-expiry: off

Group mode: exclude

Versionl-host-present-timer-expiry: off

Version2-host-present-timer-expiry: 00:02:09

The preceding information is generated after a router receives a Report message from group 225.0.0.1 through Ethernet 6/1/0. Which type of Report message will not be processed by the router?

What is the maximum number of bits that can be used for subnetting, when the netork address is a Class C address?

Policy-based routing and routing policies implements the forwarding of data packets in different ways: A routing policy mainly controls packet forwarding. According to the routing policy, packets can be forwarded without a routing table; Policy-based routing mainly controls the importing, advertising, and receiving of routing information.

Which of the statements describes how BGP updates routes?

Which of the following is the multicast distribution tree maintained by PIM-DM?

Default routes between routers are a low-cost solution because they are easy to configure and requires less system resources when compared with maintaining a complete routing table.

Which of the following attributes must exist in the BGP update messages? (Select 3 answers)

Which of the following BGP attributes cannot be advertised to other neighboring AS?

The vlink-peer command is used to specify a peer IP address for setting up a virtual link.

In VRP, by default, a BGP router does not automatically send a refresh packet to its BGP peers for retransmitting an Update packet after the inbound routing policy of the BGP peers changes.

Which of these statements is true when configuring MD5 authentication between BGP peers?

If the value of hold timers in the Open messages sent by Peer A and Peer B are 180s and 90s respectively, then what is the interval at which the Keepalive messages are sent after a BGP connection is established between these two peers?