H12-221 : HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) : Part 02

H12-221 : HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) : Part 02

1. Which of the following routers can initiate SFT switchover on a PIM-SM network? (Select 2 answers)

   • Last-hop router
   • Intermediate router
   • RP 
   • Source’s DR

2. Which of the following LSAs are flooded within a single area? (Select 3 answers)

   • The Router LSAs
   • The Network LSAs
   • The Summary LSAs
   • The AS external LSAs

3. Which of the following are OSPF message types? (Select 4 answers)

   • Hello
   • Database Description
   • Link-State Request
   • Link-State Update
   • Link-State Advertisement

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

   • 195.26.0.0/21
   • 195.26.16.0/20
   • 195.26.8.0/22
   • 195.26.20.0/22

5. The bandwidth-reference parameter is measured in Mbit/s.

   • TRUE
   • FALSE

6. Which of the following is not supported by policy-based routing for specifying the data forwarding path?

   • Source address
   • Port number
   • Destination address
   • Packet length

7. Which of the following statements regarding the features of VLSM are true? (Select 2 answers)

   • VLSM supports both IPv4 and IPv6.
   • VLSM supports overlapping address ranges.
   • VLSM allows for summarization of routes
   • VLSM can divide a subnet into smaller subnets.

8. 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.

   • TRUE
   • FALSE

9. Which port number is used by BGP to establish a TCP connection?

   • 520
   • 89
   • 179 
   • I80

10. How does community attribute of the BGP route set by routing policies affect route selection?

    • The Community attribute directly affects route selection because it must be compared during the route selection process.
    • The Community attribute does not affect route selection because it is non-transitive and cannot be transmitted between routers.
    • Routes are classified by the Community attribute which indirectly affects route selection.
    • Different route attributes such as the Local-Preference and MED values can be set for routes in different communities.

11. A BGP finite state machine has the following states:
    Active
    OpenConfirm
    Idle
    Established
    OpenSent

    What is the state transition sequence to establish a successful BGP peer relationship?

    • Idle-OpenSent-OpenConfirm-Active-Established
    • Idle-Active-OpenSent-OpenConfirm-Established
    • Active-Id le-OpenSent-OpenConfirm-Established
    • Idle-Active-OpenConfirm-OpenSent-Established

12. What are the functions of route filtering? (Select 3 answers)

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

13. What is the function of well-known community attribute NO_EXPORT_SUBCONFED in BGP?

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

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

    • TRUE 
    • FALSE

15. ACLs can match routing information or data packet addresses to filter unmatched routing information or data packets.

    • TRUE 
    • FALSE

16. We can have different network segments in an OSPF area. We can also have same network segment in different OSPF areas.

    • TRUE
    • FALSE

17. Which of the following commands is used to display the IGMP routing table?

    • display igmp group
    • display igmp interface
    • display igmp routing-table
    • display igmp

18. Which of the following statements regarding a multicast distribution tree are true? (Select 3 answers)

    • Multicast distribution trees are classified into two types: SFT and RPT.
    • The PIM-SM protocol can generate both RFTs and SPTs.
    • The PIM-55M protocol can generate only SFTs.
    • The PIM-DM protocol can generate both RFTs and SFTs.

19. What is the maximum number of hosts that a network segment 192.168.2.16/28 can support?

    • 16
    • 8
    • 15
    • 14
    • 7

20. Which of the following tools cannot be used for route filtering?

    • Filter-policy
    • IP-prefix
    • Route-policy
    • Policy-based-route