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

Questions 4

The route selection tool route-policy" can set and filter BGP attributes based on pre-defined conditions. Therefore, this tool is often used to define policies towards a BGP peer or during route generation.

Options:

A.

TRUE

B.

FALSE

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Questions 5

Which of the following statements regarding the Reverse Path Forwarding (RPF) mechanism are

true? (Select 2 answers)

Options:

A.

Multicast RPF does not depend on unicast routing.

B.

All multicast protocols adopt the RPF mechanism.

C.

A router discards the received multicast packets if the RPF check fails.

D.

The RPF mechanism has two functions: It prevents multicast routing loops and the forwarding of redundant multicast packets.

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Questions 6

By default, the cost of an OSPF interface is calculated based on the bandwidth. The formula to calculate the cost is reference bandwidth/interface bandwidth.

Options:

A.

TRUE

B.

FALSE

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Questions 7

Which of the following statements regarding stub areas is false?

Options:

A.

An AS-external-LSA cannot be advertised into a stub area.

B.

The ABR in the stub area generates a default route to enable packet forwarding destined for other areas.

C.

Transit area cannot be a stub area.

D.

Any area can be configured as a Stub area.

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Questions 8

Which of the following statements regarding multicast MAC addresses are true (Select 3 answers)

Options:

A.

The high-order 24 bits of a multicast MAC address are 0x01005e while the low-order 23 bits of a multicast MAC address are the low-order 23 bits of a multicast IP address.

B.

One multicast MAC address can map 32 different IP multicast addresses.

C.

Multicast MAC addresses are used in the link layer to identify receivers that are in the same multicast group.

D.

One multicast MAC address can map only one IP multicast address.

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Questions 9

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

Options:

A.

Originator_ID

B.

Aggregator

C.

Cluster_List

D.

AS-Path

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Questions 10

Which of the following is a private AS number?

Options:

A.

65410-65535

B.

1-64511

C.

64512-65535

D.

64511-65535

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Questions 11

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

Options:

A.

All routers in the same AS must use the same MD5 password.

B.

A pair of BGP peers must use the same MD5 password.

C.

All BGP peers must use the same MD5 password.

D.

Every BGP peer of a router must use a unique MD5 password.

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Questions 12

Which of following BGP attributes is used to define a set of prefixes with same properties?

Options:

A.

Origin

B.

Nexthop

C.

Community

D.

MED

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Questions 13

The Internet Group Management Protocol (IGMP) runs between hosts and their immediately neighboring multicast routers.

Options:

A.

TRUE

B.

FALSE

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Questions 14

Whenever changes occur in the BGP routing table, a BGP Speaker advertises all the optimal routes in the BGP routing table to its peers.

Options:

A.

TRUE

B.

FALSE

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Questions 15

ABR of a Stub area does not flood Type-5 and Type-4 LSAs into the area. Therefore, the Stub area does not have the external AS routing capability. ABRs of the Stub area generate a default route into the area which enables packet forwarding to external destinations.

Options:

A.

TRUE

B.

FALSE

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Questions 16

Which statements regarding the local preference attribute are true? (Select 2 answers)

Options:

A.

Based on BGP route selection rules, the local preference has a lower priority than the preferred-value which means BGP compares local preference of routes after comparing preferred-values.

B.

The local preference of a BGP route is 0 by default.

C.

The local preference selects an exit point for data from the local AS

D.

Based on BGP route selection rules, the local preference has a lower priority than the MED attribute which means that BGP compares local preference of routes after comparing MED.

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Questions 17

Which of the fallowings are OSPF packet types? (Select 3 answers)

Options:

A.

LSA

B.

LS Request

C.

LSP

D.

LS Update

E.

LSAck

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Questions 18

Which of the following statements regarding the IP address 224.0.0.1 are correct? (Select 2 answers)

Options:

A.

It is a multicast IP address

B.

It is a private IP address

C.

It represents all the hosts and routers

D.

It represents all the routers

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Questions 19

What command must be configured to establish a BGP connection between indirectly connected EBGP peers?

Options:

A.

peer connect-interface

B.

peer valid-ttl-hops

C.

peer ignore

D.

peerebgp-max-hop

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Questions 20

Which of the following multicast protocols can generate multicast distribution trees?

Options:

A.

MBGP

B.

MSDP

C.

IGMP

D.

PIM

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Questions 21

What is the default network mask length of 219.25.23.56?

Options:

A.

8

B.

16

C.

24

D.

32

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Questions 22

Which of the following route entries match the IP-Prefix defined below?

ip ip-prefix test index 10 permit 192.168.0.0 16 greater-equal 24 less-equal 28

(Select 2 answers)

Options:

A.

192.168.1.0/24

B.

192.10.2.0/24

C.

192.168.3.0/25

D.

192.168.4.0/30

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Questions 23

Which of the following tools cannot be used for route filtering?

Options:

A.

Filter-policy

B.

IP-prefix

C.

Route-policy

D.

Policy-based-route

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Questions 24

The ospf dr-priority value ranges from 0 to 255 and is 64 by default.

Options:

A.

TRUE

B.

FALSE

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Questions 25

In a route-policy, which BGP attributes can be used to define apply clauses? (Select 3 answers)

Options:

A.

Local-Preference

B.

Tag

C.

Origin

D.

AS-Path

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Questions 26

A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

Options:

A.

Plan subnet 192.168.1.0/25 for Department A. The range of host addresses is 1 to 126.

B.

Plan subnet 192.168.1.128/27 for Department B. The range of host addresses is 129 to 159.

C.

Plan subnet 192.168.1.160/27 for Department C. The range of host addresses is 161 to 190.

D.

Plan subnet 192.168.1.192/27 for Department D. The range of host addresses is 192 to 222.

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Questions 27

Which of the following elements together uniquely identify a LSA? (Select 3 answers)

Options:

A.

LS type

B.

Link state ID

C.

Advertising Router

D.

LS Sequence number

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Questions 28

Given a Class B network 155.16.0.0 with the mask 255.255.255.192, what is the maximum number of subnets that can be created, and what is the maximum number of hosts available within each created subnet?

Options:

A.

512 126

B.

1024 64

C.

1024 62

D.

256 254

E.

192 254

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Questions 29

The Origin attribute of the BGP routes injected with the network command are considered IGP.

Options:

A.

TRUE

B.

FALSE

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Questions 30

Which of these statements is false when using the import-route command to import routes into BGP?

Options:

A.

The import-route command can import IGP routes, direct routes, and static routes into BGP.

B.

A process ID must be specified if OSPF routes or RIP routes are imported into BGP.

C.

By default, the origin attribute of imported routes is IGP.

D.

Routing policies filters the routes imported from other routing protocols.

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Questions 31

Which of the following protocols support the multicast ASM service model? (Select 2 answers)

Options:

A.

PIM-SM and IGMFV2

B.

PIM-SSM and IGMPv3

C.

BGPandOSPF

D.

PIM-DM and IGMPv2

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Questions 32

BGP is an exterior gateway protocol which runs between ASs. It focuses on the control of route propagation and selection of optimal routes rather than discovery and calculation of routes.

Options:

A.

TRUE

B.

FALSE

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Questions 33

A OSPF network may be structured, or subdivided into routing areas. Such routing areas are a set of network segments.

Options:

A.

TRUE

B.

FALSE

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Exam Code: H12-221
Exam Name: HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network)
Last Update: Apr 14, 2023
Questions: 225