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Download H12-221 Exam Dumps 2021




We offers . "HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network)", also known as H12-221 exam, is a HUAWEI Certification. This set of posts, Passing the H12-221 exam with , will help you answer those questions. The covers all the knowledge points of the real exam. 100% real and revised by experts!

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NEW QUESTION 1
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 2
What is the maximum number of bits that can be usedfor creating subnets, when the network address is a Class B address?

  • A. 8
  • B. 14
  • C. 16
  • D. 22

Answer: B

NEW QUESTION 3
Which of the following statements are correct regarding OSPF Network LSAs? (Select 2 answers)

  • A. Network LSAs are generated by ABR.
  • B. Only the router which is connected to NBMA or Broadcast Network may generate Network LSAs.
  • C. DR uses Network LSAs to describe routers that have established adjacency with it in the network,
  • D. Network LSAs are flooded in the entire AS.

Answer: BC

NEW QUESTION 4
Which of the following describes the relationship between BGP and AS?

  • A. BGP only runs between ASs, and cannot run within an AS.
  • B. BGP is an EGP used by ASs to exchange routing information with other ASs.
  • C. BGP builds network topologies by exchanging link-state information between ASs.
  • D. BGP cannot run between ASs.

Answer: B

NEW QUESTION 5
Unlike Stub area, an NSSA supports Type-5 LSAs.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 6
An IP-prefix-filter is used for filtering IP prefixes and data packets.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 7
An ACL is a series of orderly rules composed of permitdeny clauses. Which of the following attributes cannot be used for defining an ACL rule?

  • A. Source address
  • B. Destination address
  • C. Port number
  • D. AS-Path

Answer: D

NEW QUESTION 8
Route filtering can filter not only routing information but also link-state information.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 9
Which type of message is periodically exchanged between BGP peers to keep the BGP connection alive?

  • A. Open
  • B. Hello
  • C. Route-refresh
  • D. Keepalive

Answer: D

NEW QUESTION 10
Which of the following is the address range assigned byIANA for SSM service in IPv4?

  • A. 232.0.0.0/24
  • B. 225.0.0.0/8
  • C. 232.0.0.0/8
  • D. 239.0.0.0/8

Answer: D

NEW QUESTION 11
Which of following BGP attributes is used to define a set of prefixes with same properties?

  • A. Origin
  • B. Nexthop
  • C. Community
  • D. MED

Answer: C

NEW QUESTION 12
A failure in establishing a BGP connection can be addressed by checking the TCP connectivity and BGP peer configurations.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 13
IGP routes can be installed into the BGP routing table by running either the network or import-route command.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 14
Which of the following protocols support default route advertisement? (Select 3 answers)

  • A. RIP
  • B. OSPF
  • C. BGP
  • D. Static

Answer: ABC

NEW QUESTION 15
Which of the following BGP filters can be used to set route attributes?

  • A. Ip-prefix
  • B. Route-policy
  • C. As-path-filer
  • D. Community-filter

Answer: B

NEW QUESTION 16
Which of the following is the multicast distribution tree maintained by PIM-DM?

  • A. SFT
  • B. CBT
  • C. RFT
  • D. STP

Answer: A

NEW QUESTION 17
An Autonomous System (AS) is a set of routers under the control of one technical administration that presents a common routing policy.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 18
OSPF directly runs over the IP protocol as protocol number 89.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 19
Which statements regarding the local preference attribute are true? (Select 2 answers)

  • 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.

Answer: AC

NEW QUESTION 20
What is the mask value for the network 175.25.128.0/19?

  • A. 255.255.0.0
  • B. 255.255.224.0
  • C. 255.255.24.0
  • D. Different based on the address type

Answer: B

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