H12-221 : HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) : Part 05
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The defined route-policy set-cost configurations are:
ip ip-prefix 1 permit 10.1.0.0 16
route-policy Set-cost permit node 10
if-match ip-prefix 1
apply cost 300
route-policy Set-cost permit node 20
apply cost 200Which of the following statements is true?
- The route 10.1.0.0/16 matches node 10 and its cost is set to 300.
- The route 10.1.0.0/16 matching node 10 also matches node 20 and its final cost is set to 200.
- Costs of all routes will be set to 200.
- All routes that fail to match node 10 will be denied.
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RTA is a source’s DR and RTB is an RP. A multicast source sends multicast data to RTA but RTB cannot find any information about the multicast source (registered by using the PIM Register message). Why? (Select 3 answers)
- RTB has no unicast routes to RTA,
- RTA fails to learn RP information.
- RTA has no unicast routes to RTB.
- The RP learned by RTA is not RTB.
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Which statement about OSPF is false?
- The router with a higher Router Priority has a higher DR election priority.
- When two routers have the same Router Priority, the one with a larger value for Router ID has a higher DR election priority.
- If a DR fails, the BDR automatically takes over as the DR and a new BDR is elected.
- If a BDR fails, the DR will not take over as the BDR and waits for the fault recovery to handle the situation. No new BDR will be elected.
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Which statements regarding BGP route advertisement are true? (Select 2 answers)
- All BGP routes learned from BGP peers are advertised to other BGP peers,
- Only the routes learned from an IGP are advertised to other BGP peers.
- By default, the routes learned from IBGP peers are not advertised to other IBGP peers,
- Only the optimal routes are advertised to other BGP peers.
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The BGP community attribute is a well-known mandatory attribute.
- TRUE
- FALSE
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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.
- TRUE
- FALSE
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Which of the following BGP attributes are optional in a BGP Update packet? (Select 2 answers)
- Origin
- Nexthop
- Local-Preference
- MED
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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?
- Idle
- Active
- OpenSent
- Established
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Which of the following statements are false? (Select 3 answers)
- ASBR-Summary-LSAs describe the route to an ASBR and are flooded within an AS.
- ASE-LSAs describe the route to an external AS and are flooded to an external AS.
- AS-external-LSAs do not belong to any particular OSPF area,
- The Type-1 external metrics include only the AS external metric.
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What are the functions of an IGMFV2 Query message? (Select 3 answers)
- A router sends IGMPv2 Query messages to collect group memberships of receiver hosts.
- A router sends IGMPv2 Query messages to elect a querier.
- A working router sends Query messages periodically.
- Based on IGMPv2 Query messages, receiver hosts can unicast Report messages to the querier by obtaining its address.
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Which command triggers the advertisement of BGP routes without interrupting a BGP connection?
- Reset bgp
- Refresh bgp all external
- Refresh bgp all internal
- RR-filter
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Which of the following concepts should a network administrator know while using VLSM technology for subnetting? (Select 3 answers)
- A subnet is composed of only summarized routes.
- A subnet can address a host or be further subnetted.
- The routing updates must carry subnet mask information.
- The summarized networks must have the same high-order bit.
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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.
- TRUE
- FALSE
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What is the maximum number of bits that can be used for creating subnets, when the network address is a Class B address?
- 8
- 14
- 16
- 22
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Which of the following statements are incorrect regarding Link ID of Router LSA in an OSPF routing protocol? (Select 2 answers)
- The Link ID of point-to-point links are the neighbors Interface IP address.
- The Link ID of TransNet links are the network address of TransNet network segment.
- The Link ID of StubNet links are the network address of stub network.
- The Link ID of virtual links are the neighbor’s Router ID of virtual link.
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Which of the following statements regarding BGP route selection rules are true? (Select 3 answers)
- BGP initially ignores routes with unreachable next hops,
- A summarized route takes precedence over a non-summarized route.
- IBGP routes take precedence over EBGP routes.
- If all other factors are the same, the route with the shortest length cluster list is preferred.
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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?
- 10.11.12.16/28
- 172.31.255.128/27
- 192.168.1.0/28
- 209.165.202.128/27
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Type 2-external route should always take precedence over a Type 1-external route.
- TRUE
- FALSE
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Which of the following statements are true? (Select 3 answers)
- The neighbor state can transition from “Down” to “Exchange”.
- The neighbor state can transition from “Down” to “Init”.
- The neighbor state can transition from “Init” to “Exstart”.
- The neighbor state can transition from “Init” to “2-Way”.
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Which of the following routes matches the ACL filter given below?
“acl number 2001
rule 0 permit source 1.1.0.0 0″- 1.1.1.1/32
- 1.1.1.0/24
- 1.1.0.0/16
- 1.0.0.0/8
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