Latest [Jan 01, 2022] Real Huawei H12-221 Exam Dumps Questions
H12-221 Dumps To Pass HCNP-R&S Exam in One Day (Updated 225 Questions)
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The price of the Huawei H12-221 exam is $200 USD.
NEW QUESTION 63
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. FALSE
- B. TRUE
Answer: B
NEW QUESTION 64
A network administrator is required to construct a small-scale network containing only 22 hosts. The ISP has provided only a single public IP address that is to be used as the egress address. Which of the following addressing schemes can be used to plan such a network?
- A. 172.31.255.128/27
- B. 10.11.12.16/28
- C. 209.165.202.128/27
- D. 192.168.1.0/28
Answer: A
NEW QUESTION 65
An OSPF neighbor relationship fails to establish and the OSPF error information is displayed as follows. Which
of the following is most likely the cause?
- A. Network masks are inconsistent.
- B. Area IDs are mismatched.
- C. Router IDs conflict.
- D. Authentication types are inconsistent.
Answer: C
NEW QUESTION 66
Which of the following statements are true? (Select 3 answers)
- A. The neighbor state can transition from "Down" to "Exchange".
- B. The neighbor state can transition from "Down" to "Init".
- C. The neighbor state can transition from "Init" to "Exstart".
- D. The neighbor state can transition from "Init" to "2-Way".
Answer: B,C,D
NEW QUESTION 67
Over a working TCP connection, what is the state of the BGP peer relationship if the peer AS number
configured for a BGP router is inconsistent with the AS number of its BGP peer?
- A. Established
- B. Idle
- C. OpenSent
- D. Active
Answer: D
NEW QUESTION 68
For link-state routing protocols, filtering inbound routes cannot block the transmission of link-state information.
The filtering effect means that routes cannot be injected into the local routing table but neighbors can still
receive complete route state information and calculate complete routes.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 69
Which of the following statements is false?
- A. 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.
- B. The Type-1 external metric is the sum of the external metric and the internal cost to reach an ASBR.
- C. The Type-2 external metric uses only the AS external metric.
- D. The metric of an external route is the sum of the AS external metric and the AS internal metric.
Answer: D
NEW QUESTION 70
Which of the following multicast protocols can generate multicast distribution trees?
- A. IGMP
- B. MSDP
- C. PIM
- D. MBGP
Answer: C
NEW QUESTION 71
Which statement regarding BGP is false?
- A. BGP runs over TCP.
- B. BGP uses port number 189.
- C. BGP is an inter-AS routing protocol.
- D. BGP is an enhanced distance-vector routing protocol.
Answer: B
NEW QUESTION 72
What are the functions of route filtering? (Select 3 answers)
- A. Avoids sub-optimal routes generated during route import,
- B. Implements accurate route importing and controls route advertisement.
- C. Affects route selection by changing route attributes.
- D. Avoids routing loops.
Answer: A,B,D
NEW QUESTION 73
Which of the following tools cannot be used for route filtering?
- A. IP-prefix
- B. Filter-policy
- C. Route-policy
- D. Policy-based-route
Answer: D
NEW QUESTION 74
Which of these statements is false when using the import-route command to import routes into BGP?
- A. Routing policies filters the routes imported from other routing protocols.
- B. The import-route command can import IGP routes, direct routes, and static routes into BGP.
- C. A process ID must be specified if OSPF routes or RIP routes are imported into BGP.
- D. By default, the origin attribute of imported routes is IGP.
Answer: D
NEW QUESTION 75
Which of the following conditions must be met for importing routes into BGP using the network command? (Select 2 answers)
- A. The routes must match the specified mask length.
- B. The routes do not need to match the specified mask length.
- C. The routes must be optimal in the IP routing table.
- D. The routes must be IGP routes.
Answer: A,C
NEW QUESTION 76
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. 30s
- B. 60s
- C. 90s
- D. 180s
Answer: A
Explanation:
Explanation
NEW QUESTION 77
Based on BGP route selection rules, the route with the lowest local preference is preferred.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 78
Which of the following elements are used by Network LSA to describe broadcast or NBMA network segments in OSPF routing protocol? (Select 3 answers)
- A. Link ID
- B. Net mask
- C. Attached Router list
- D. Metric
Answer: A,B,C
NEW QUESTION 79
How does a BGP router process a received route whose next hop is unreachable?
- A. The BGP router accepts the route and adds it to the BGP routing table. This route participates in route selection and may be selected as the optimal route to be added to the IP routing table for packet forwarding.
- B. The BGP router refuses the route.
- C. The BGP router sends an error message to the router that has sent the update message.
- D. The BGP router accepts the route and adds it to the BGP routing table. This route, however, is neither preferred nor added to the IP routing table for packet forwarding.
Answer: D
NEW QUESTION 80
Which of the following route entries matches ACL 2001 that is defined below?
1.0.0.0/8,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 ACL 2001 Basic ACL 2001,1 rule Ad's step is 5 rule 0 permit source 1.2.0.0 0.0.254.255
- A. 1.2.3.0/24,1.2.4.0/24, 1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24
- B. 1.0.0.0/8 ,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24
- C. 1.2.3.0/24,1.2.5.0/24,1.2.7.0/24
- D. 1.2.0.0/16,1.2.4.0/24,1.2.6.0/24,1.2.8.0/24
Answer: D
NEW QUESTION 81
Why is BGP run by core routers in transit AS?
- A. To optimize network within an AS
- B. To ensure only one export
- C. To ensure the transmission of data packets to the external destination addresses
- D. To eliminate route loops
Answer: C
NEW QUESTION 82
RTA and RTB are interconnected through a FE interface in an OSPF area. Which of the following can be used to configure the link cost between RTA and RTB as 10? (Select 2 answers)
- A. Use command "ospf cost 10" on the two routers
- B. Use command "bandwidth-reference 1000" on the two routers to change bandwidth-reference value
- C. Use command "ospf cost 5" on the two routers
- D. Use command "bandwidth-reference 500" on the two routers to change bandwidth-reference value
Answer: A,B
NEW QUESTION 83
Which is the origin attribute of the BGP routes redistributed using the import-route command?
- A. Incomplete
- B. EGP
- C. IGP
- D. Unknown
Answer: A
NEW QUESTION 84
Enabling MD5 authentication between BGP peers can prevent DoS attacks that target BGP peers.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 85
A company reserves the network segment 172.29.100.0/26 for some remote small-scale sites. Each site has 5
IP devices to connect to this network segment. Which of these Variable Length Subnet Masks (VLSMs) can be
used to accommodate the need for minimum number of hosts?
- A. /27
- B. /30
- C. /29
- D. /28
Answer: C
NEW QUESTION 86
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