HUAWEI H12-221 ExamHCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network)

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NEW QUESTION 1
Which of the following statements regardingRPs are true? (Select 3 answers)

  • A. Different group addresses on a PIM-SM network corresponds to different RPs.
  • B. An RP is the root of an RFT
  • C. An RP is elected out of BSRs.
  • D. All routers on a PIM-SM network must automatically discover the location of RPs.

Answer: ABD

NEW QUESTION 2
A router can be configured to run only one BGP routing process.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 3
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?

  • A. 180s
  • B. 90s
  • C. 60s
  • D. 30s

Answer: D

NEW QUESTION 4
We can prevent a router from ever becoming a DR or BDR by configuring an OSPF Priority of zero,

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 5
Which of the following network link type is not the basic network link type defined in OSPF?

  • A. P2P
  • B. P2MP
  • C. Broadcast
  • D. Virtual link

Answer: D

NEW QUESTION 6
What are the functions of route filtering? (Select 3 answers)

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

Answer: ABD

NEW QUESTION 7
Which of the following subnet masks can be used to divide a Class C network into 5 subnets, with each subnet containing a maximum of 20 hosts?

  • A. 255.255.255.192
  • B. 255.255.255.240
  • C. 255.255.255.224
  • D. 255.255.255.248

Answer: C

NEW QUESTION 8
How many bits of the MAC address space is available for mapping IP multicast addresses?

  • A. 24
  • B. 22
  • C. 25
  • D. 23

Answer: D

NEW QUESTION 9
Which types of packets are supported by BGP? (Select 3 answers)

  • A. Hello
  • B. Notification
  • C. Update
  • D. Route-refresh

Answer: BCD

NEW QUESTION 10
Which of these statements is false when using the import-route command to import routes into BGP?

  • 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.

Answer: C

NEW QUESTION 11
The bandwidth-reference parameter is measured in Mbit/s.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 12
Which of the following statements is false?

  • A. The Type-1 external metric is the sum of the external metric and the internal cost to reach an ASBR.
  • B. The Type-2 external metric uses only the AS external metric.
  • C. The metric of an external route is the sum of the AS external metric and the AS internal metric.
  • D. The effects of setting Forwarding Address to a non-zero value is that the next hop of the external route imported into OSPF is within the OSPF routing area.

Answer: C

NEW QUESTION 13
In OSPF protocol, Different types of networks cannot establish an adjacency with each other in the Full state.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 14
What are the functions of an IGMFV2 Query message? (Select 3 answers)

  • A. A router sends IGMPv2 Query messages to collect group memberships of receiver hosts.
  • B. A router sends IGMPv2 Query messages to elect a querier.
  • C. A working router sends Query messages periodically.
  • D. Based on IGMPv2 Query messages, receiver hosts can unicast Report messages to the querier by obtaining its address.

Answer: ABC

NEW QUESTION 15
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.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 16
Which of the following statements is false? [RTA]display ospf peer
OSPF Process 1 with Router ID 1.1.1.1 Neighbors
Area 0.0.0.0 interface 10.1.1.1(Ethernet0/0)'s neighbor(s) RouterlD: 2.2.2.2 Address: 10.1.1.2
State: Full Mode: Nbr is Master Priority: 1 DR: 10.1.1.1 BDR: 10.1.1.2
Dead timer expires in 35s Neighbor has been up for 04:35:02

  • A. The OSPF Router ID of the local router is 1.1.1.1.
  • B. The OSPF Router ID of the neighbor is 2.2.2.2.
  • C. The OSPF Router ID of the neighbor is larger and thus the neighbor acts as a DR.
  • D. The local router acts as slave.

Answer: C

NEW QUESTION 17
Which statement about OSPF is false?

  • A. Hello messages are used as a form of greeting to discover other routers on its networks and establish relationships between neighboring device
  • B. On broadcast or NBMA networks, Hello messages can also be used to elect a DR or a BDR.
  • C. DD packets describe the summary LSDB information by carrying LSA headers.
  • D. The intervals at which two routers send Hello messages must be consistent; otherwise, cannot be established relationships between neighboring devices.
  • E. DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.

Answer: D

NEW QUESTION 18
What is the function of well-known community attribute NO_EXPORT_SUBCONFED in BGP?

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

Answer: C

NEW QUESTION 19
Which of the following conditions must be met for importing routes into BGP using the networkcommand?(Select 2 answers)

  • A. The routes must be optimal in the IP routing table.
  • B. The routes do not need to match the specified mask length.
  • C. The routes must match the specified mask length.
  • D. The routes must be IGP routes.

Answer: AC

NEW QUESTION 20
A router receives a packet whose destination address is 195.26.17.4. Which of these subnets does this address belong to?

  • A. 195.26.0.0/21
  • B. 195.26.16.0/20
  • C. 195.26.8.0/22
  • D. 195.26.20.0/22

Answer: B

NEW QUESTION 21
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.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 22
Which of the following statements regarding ACL type are true? (Select 3 answers)

  • A. ACL consists of basic ACL, advanced ACL and interface-based ACL
  • B. ACL ranging from 2000 to 2999 belongs to advanced ACL
  • C. ACL ranging from 3000 to 3999 belongs to advanced ACL
  • D. Advanced ACL can be used to match either destination address or source address

Answer: ACD

NEW QUESTION 23
Which of the following route selection tools is used in multiple routing protocols, can be configured with match conditions, and consists of if-match and apply clauses?

  • A. AS-path-filter
  • B. IP-prefix
  • C. Route-policy
  • D. Community-filter

Answer: C

NEW QUESTION 24
The ABR of an NSSA does not advertise Type-4 and Type-5 LSAs to an NSSA instead it imports external routes into the NSSA,

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 25
Which of the following situations will occur when the command"multicast bad balance" is configured?(Select 3 answers)

  • A. If there exists no unicast equal-cost routes, multicast load balancing fails.
  • B. If group address-based load splitting is employed, balanced distribution of entries over equal-cost routes cannot be ensured due to hash function limitations.
  • C. Balanced distribution of entries over equal-cost routes can be ensured as long as multicast load balancing is performed.
  • D. During multicast load splitting, traffic may not be balanced among equal-cost routesbecause multicast load balancing is based on multicast entries not multicast data packets.

Answer: ABD

NEW QUESTION 26
ABRs advertise link state information about non-backbone areas into backbone areas. The backbone area then advertises the routing information into other non-backbone areas. Link state information about the backbone area cannot be advertised into non-backbone areas.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 27
The ABR in a Totally Stubby area will not advertise Type-3, Type-4, and Type-5 LSAs into the Totally Stubby area. Instead, the ABR will advertise a default route to the Totally Stubby area enabling packet forwarding to other destinations.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 28
Which of the following IP addresses can be used on a public network? (Select 2 answers)

  • A. 172.30.0.1/16
  • B. 127.254.11.15/16
  • C. 172.15.12.7/16
  • D. 193.168.10.4/16

Answer: CD

NEW QUESTION 29
Which of the following messages needs to be sent out by a downstream interface when recovering from the pruned state to the forwarding state in PIM DM?

  • A. Join
  • B. Assert
  • C. Prune
  • D. Graft

Answer: D

NEW QUESTION 30
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