H12-224 : HCNP-R&S Fast Track (Huawei Certified Network Professional – Routing & Switching Fast Track) : Part 28

H12-224 : HCNP-R&S Fast Track (Huawei Certified Network Professional – Routing & Switching Fast Track) : Part 28

1. Which of the following statements about comparison between ACL and IP-Prefix are true? (Choose two.)

   • Both ACL and IP-Prefix can be used for route filtering 
   • Both ACL and IP-Prefix can be used for data packet filtering
   • ACL can be used for data packet filtering and route filtering, but IP-Prefix can only be used for route filtering 
   • IP-Prefix can be used for data packet filtering and route filtering, but ACL can only be used for route filtering

2. Route filtering can filter not only routing information but also link-status information.

   • True
   • False 

3. VLANs isolate broadcast domains, eliminate broadcast storms, and enhance data security.

   • TRUE 
   • FALSE

4. A OSPF network may be structured, or subdivided into routing areas. Such routing areas are a set of network segments.

   • TRUE 
   • FALSE

5. RSTP has all functions of STP and it is backwards compatible with STP.

   • TRUE 
   • FALSE

6. Which of the following protocols support the multicast ASM service model? (Choose two.)

   • PIM-SM and IGMPv2 
   • PIM-SSMandIGMpv3
   • BGP and OSPF
   • PIM-DM and IGMPv2 

7. The USG supports load balancing between multiple uplinks.

   • TRUE 
   • FALSE

8. Policy-based routing and routing policy affect the forwarding of data packets in different ways: A routing policy mainly controls packet forwarding. According to the routing policy, packets can be forwarded with no need to use a routing table; policy-based routing mainly controls the importing, advertising, and receiving of routing information so as to affect the forwarding of data packets.

   • True
   • False

9. As shown in the figure, SWA and SWB are two switches. Which statements are true? (Choose three.)

   

   • Port0/3 can be an access interface 
   • Port0/3 can be a hybrid interface
   • Port0/3 can be a trunk interface
   • None of the above

10. In IPv4, which of the following is the SSM address range allocated by the IANA?

    • 232.0.0.0/24
    • 225.0.0.0/8
    • 232.0.0.0/8
    • 239.0.0.0/8 

11. The “import-route limit” command is used to set a maximum number of imported routes that can be imported into an OSPF routing process.

    • TRUE
    • FALSE

12. Which of the following statements about ACL type are true? (Choose three.)

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

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

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

14. Which of the following route entries matches ACL 2001 that is defined below?

    

    • 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
    • 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
    • 1.2.3.0/24,1.2.5.0/24,1.2.7.0/24
    • 1.2.0.0/16,1.2.4.0/24,1.2.6.0/24,1.2.8.0/24 

15. How does an IGMP router maintain group memberships on the network? (Choose two.)

    • The router maintains a timer for each group membership. If the router receives a Report message from a receiver host, it refreshes the timer of the group membership of this host; if the router does not receive any Report message from a receiver host before the timer expires, it deletes the group membership of this host. 
    • The router periodically sends Query messages. After a receiver host receives the Query message, the receiver host sends a Report message. 
    • A receiver host periodically sends a Report message.
    • The router deletes a group membership only when it receives a Leave message for this group.

16. How many types of topology change messages are defined in RSTP?

    • 1
    • 2
    • 3
    • 4

17. How many bits of the multicast MAC address are used for multicast IP address mapping?

    • 24
    • 22
    • 25
    • 23

18. The IGMP protocol runs between a host and its directly connected multicast router.

    • True 
    • False

19. Which of the following routers have multicast routing entries even when there is no receiver on the network? (Choose two.)

    • Source’s DR 
    • Receiver router
    • Intermediate router
    • RP 

20. Which of the following statements regarding IP address 224.0.0.1 are correct? (Choose two.)

    • It is a multicast IP address. 
    • It is a private IP address.
    • It represents all the hosts and routers. 
    • It represents all the routers.