2019 New HCIP-Routing & Switching-IERS V2.0 H12-221-ENU Exam Questions

Gaining HCIP-Routing&Switching certification validates the knowledge and skills required to construct and manage small and medium-sized networks. H12-221-ENU HCIP-Routing & Switching-IERS V2.0 exam is one of the three exams(H12-221-ENU,H12-222-ENU,H12-223-ENU) for HCIP-Routing&Switching certification. New HCIP-Routing & Switching-IERS V2.0 H12-221-ENU Exam Questions were released on June 29,2019, which is the best way to pass Huawei H12-221-ENU exam.

The total number of questions for 2019 New HCIP-Routing & Switching-IERS V2.0 H12-221-ENU Exam Questions is 613 Q&As. To help you check the high-quality of new version, we share 25 free questions below. You can try testing H12-221-ENU free demo questions before getting new H12-221-ENU exam questions. We set exam score for you, answering one question correctly can gain 4 score. The total score is 100. More questions, please contact [email protected].

Begin to Test:

1. Regarding the two working modes of PIM-DM and PIM-SM, the correct description is: (Multiple Choice)

PIM-SM must require RP

PIM-DM works in a "pull" mode of operation.

PIM-SM works in a “push” mode of operation.

PIM-SM is suitable for member-intensive multicast network structures.

Question 1 of 25

2. The BGP attributes that are typically used to control how data flows out of the AS are:

AS-Path

Nexthop

Local-Preference

MED

Question 2 of 25

3. When the other routing protocol is introduced in a routing protocol, in order to introduce only a part of the routing information that satisfies the conditions and set some attributes of all imported routing information, only the route-policy tool can be used.

TRUE

FALSE

Question 3 of 25

4. Multicast related protocols do not include:

PIM

DVMRP

OSPF

MSDP

MBGP

Question 4 of 25

5. Which of the following information is carried in the BGP Open message? (Multiple Choice)

Local Autonomous System (AS) number

BGP ID

Hold time

Routing properties

BGP version

Question 5 of 25

6. The correct description of the LSA is:

The combination of LS type, Link State ID and LS sequence number identifies one LSA together.

The combination of LS sequence number, Link State ID and Advertising Router identifies one LSA together.

The combination of LS type, Link State ID and Advertising Router identifies one LSA together.

The combination of LS type, LS sequence number and Advertising Router identifies one LSA together.

Question 6 of 25

7. Regarding the description of the network command in BGP, the error is:

The route injected through the network must exist in the IP routing table.

The injected route needs to strictly match the mask length in the IP routing table.

By default, BGP does not publish any local network routes.

network cannot be used with the corresponding policy.

Question 7 of 25

8. The difference between the PIM-SM protocol and the PIM-DM protocol is: (Multiple Choice)

PIM-SM assumes that there are a small number of recipients in the network, while PIM-DM assumes that there are a large number of recipients in the network.

The BSR/RP exists only in the PIM-SM network, but not in the PIM-DM.

PIM-SM can implement on-demand forwarding. There is no redundant traffic in the network, and PIM-DM periodically floods, and there is no redundant traffic in the network.

PIM-SM has RPT and SPT trees, while PIM-DM only has SPT trees.

Question 8 of 25

9. Which of the following conditions can cause multicast traffic to fail to reach the user? (Multiple Choice)

The router does not have dynamic routing

The router-related interface is not be enabled the PIM protocol.

The upstream router discards the received Graft message.

The receiver router discards the received IGMP Report.

Question 9 of 25

10. Regarding the NSSA command description, the error is:

The default-route-advertise command is used to advertise the default route to the common OSPF area.

The no-import-route parameter is used to prevent the external route of the AS from being imported into the NSSA area in the form of Type-7.

The no-summary parameter indicates that the fourth type of LSA is not advertised to the area.

The set-n-bit parameter indicates the flag for setting the N-bit bit in the DD insulation, which is an optional field in the DD.

Question 10 of 25

11. Regarding the description of BGP neighbors, the errors are: (Multiple Choice)

Manually configure BGP neighbors

Successfully establish a TCP connection between two neighboring routers

Exchange link state information between BGP neighbors

MD5 authentication must be configured between BGP neighbors.

Question 11 of 25

12. The BGP AS_PATH attribute is an optional transition attribute.

TRUE

FALSE

Question 12 of 25

13. The routing tool route-policy can give pre-defined condition filtering and set BGP attributes, so it is often used to define policies for BGP peers, and is often used during route generation. By default, all unmatched routes were rejected to go through route-policy.

TRUE

FALSE

Question 13 of 25

14. The Hold time carried by the BGP neighbor PeerA in the Open is 90s. The Hold time carried by the PeerB in the Open is 30s. The interval between the PeerA and the PeerB after the connection is successfully established is:

90s

30s

10s

Do not send Keepalive packet

Question 14 of 25

15. Link Aggregation is a way to bundle a set of physical interfaces together as a logical interface to increase bandwidth.
There are two types of link aggregation control protocols: manual load balancing mode and static LACP mode.

TRUE

FALSE

Question 15 of 25

16. In the ACL rule, if all the rules are found and there are no rules that meet the conditions, called the miss rules, no processing is performed on the packets.

TRUE

FALSE

Question 16 of 25

17. For IPv4, according to the address space of the SSM range allocated by IANA, which of the following addresses are legal?

232.137.1.1/24

225.137.1.1/8

232.137.1.1/8

239.137.1.1/8

Question 17 of 25

18. IGMPv3 not only supports the general group query of IGMPv1 version and the specific group query of IGMPv2 version, but also supports the specified source/group query of IGMPv3 version.

TRUE

FALSE

Question 18 of 25

19. What are the main steps included in the IS-IS protocol routing calculation? (Multiple Choice)

Neighbor relationship establishment

Route calculation

Link information exchange

Routing release

Question 19 of 25

20. If the router-id is configured in the system view and the BGP view of router, becuase of the high priority of the BGP view, the BGP view uses the router-id in the BGP view.

TRUE

FALSE

Question 20 of 25

21. Which of the following description of OSPF is correct?

OSPF uses the Bellman-Ford algorithm, and each router runs the algorithm independently.

OSPF updates regularly every 30 minutes

OSPF floods an LSU every 5s

OSPF itself does not have a certain mechanism, so OSPF relies on the upper layer protocol, that is, TCP confirmation is performed.

Question 21 of 25

22. Which of the following BGP attributes are not included in the Update message of the BGP route? (Multiple Choice)

Origin

MED

Local-Preference

AS_PATH

Question 22 of 25

23. Both policy routing and routing policies can affect the forwarding process of data packets, but they affect the packets differently. Policy routing is based on policy-based forwarding. Find the routing table forwarding after failure. Based on the forwarding plane, it serves the forwarding policy and needs to be manually configured. The routing policy is based on the destination address and is forwarded according to the routing table. Based on the control plane, it serves the routing protocol and the routing table, and combines with the routing protocol to complete the policy.

TRUE

FALSE

Question 23 of 25

24. When OSPF runs on a broadcast network, you need to elect DR and BDR. Then, in which of the following states will DR and BDR be elected?

Init status

attempt status

2-way status

Exchange status

Question 24 of 25

25. One of the features of OSPF is that it only supports MD5 authentication.

TRUE

FALSE

Question 25 of 25

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