H12-224 : HCNP-R&S Fast Track (Huawei Certified Network Professional – Routing & Switching Fast Track) : Part 16
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Based on classification rules, traffic classification can be divided into which of the following types? (Choose two.)
- Simple traffic classification
- Complex traffic classification
- On-demand traffic classification
- Service traffic classification
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A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is used to divide subnets? (Choose two.)
- Plan subnet 192.168.1.0/25 for Department A. The range of host addresses is 1 to 126.
- Plan subnet 192.168.1.128/27 for Department B. The range of host addresses is 129 to 159.
- Plan subnet 192.168.1.160/27 for Department C. The range of host addresses is 161 to 190.
- Plan subnet 192.168.1.192/27 for Department D. The range of host addresses is 192 to 222.
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Which statement about OSPF is false?
- The router with a higher Router Priority also has a higher DR election priority.
- When two routers have the same Router Priorities, the router with a larger 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 awaits the fault recovery of the BDR. No new BDR will be elected.
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The network 154.27.0.0 without any subnet can support() hosts?
- 254
- 1024
- 65,534
- 16,777,206
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Which of the following statements about a neighbor state machine is true?
- The Attempt state appears only on an NBMA network or a broadcast network.
- The Attempt state appears only on an NBMA network or a P2MP network.
- LSR packets can be sent in the Exchange state.
- The Full state indicates that LSDB synchronization is complete. No LSDB information will be exchanged.
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Which of the following IP addresses are network addresses? (Choose two.)
- 64.104.3.7/28
- 192.168.12.64/26
- 192.135.12.191/26
- 198.18.12.16/28
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Assume that the VRID of a VRRP virtual router is 100 and the virtual IP address of the virtual router is 192.168.1.1, which of the following addresses is the virtual MAC address of the virtual router?
- 00-00-5E-00-01-64
- 00-00-5E-00-01-01
- 01-00-5E-00-01-64
- 01-00-5E-00-01-01
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What are the OSPF message types? (Choose four.)
- Hello
- Database Description
- Link State Request
- Link State Update
- Link State Advertisement
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Which of the following statements are correct regarding Network LSA in OSPF network? (Choose two.)
- Network LSA is generated by ABR.
- Only the router which connects NBMA or Broadcast Network may generate Network LSA.
- DR uses Network LSA to describe routers that have established adjacency relation with it in the network.
- Network LSA is flooded in the whole AS.
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A broadcast and an NBMA network, each having two or more routers, must both have a DR and a BDR.
- True
- False
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ABRs advertise link status information about connected non-backbone areas to the backbone area. The backbone area then advertises the routing information to other non-backbone areas. Link status information about the backbone area cannot be advertised to non-backbone areas.
- True
- False
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OSPF directly runs over the IP protocol. Its IP protocol number is 89.
- True
- False
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Which of the following statements about link aggregation are true? (Choose three.)
- Link aggregation binds a group of physical interfaces together as a logical interface to increase the bandwidth and reliability.
- Link aggregation complies with IEEE 802.3az.
- The logical link formed by bundling multiple physical links together is called a link aggregation group (LAG) or a trunk.
- Active and inactive interfaces exist in link aggregation. Active interfaces forward data, whereas inactive interfaces do not.
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When links are switched in a Smart Link group, which of the following mechanisms can be used to refresh MAC and ARP entries? (Choose three.)
- MAC and ARP entries are refreshed automatically with respect to traffic.
- The Smart Link group uses a new link to send Flush packets.
- MAC entries are refreshed after the aging time expires.
- ARP entries are refreshed after the aging time expires
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Which of the following statements about the BFD asynchronous mode are true? (Choose two.)
- The local system regularly sends BFD control packets, and the remote system detects the BFD control packets sent from the local system.
- The local system detects the BFD control packets sent by itself.
- If one system does not receive any BFD packets from its peer within a detection period, it advertises a session Down event.
- Each system confirms its connections with other systems in a particular method. After a BFD session is set up, BFD control packets are no longer sent.
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Routes 172.1.12.0/24, 172.1.13.0/24, 172.1.14.0/24, and 172.1.15.0/24 can be summarized into route 172.1.8.0/21.
- True
- False
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Which of the following statements are true? (Choose three.)
- The neighbor state machine can transition from the Down state to the Exchage state.
- The neighbor state machine can transition from the Down state to the Init state.
- The neighbor state machine can transition from the Init state to the Exstart state.
- The neighbor state machine can transition from the Init state to the 2-Way state.
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A router receives a data packet, with the destination address being 195.26.17.4. Which subnet is this address in?
- 195.26.0.0/21
- 195.26.16.0/20
- 195.26.8.0/22
- 195.26.20.0/22
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Which of the following statements about the reliability requirement level are true? (Choose three.)
- Faults seldom occur in the system software or hardware.
- System functions are affected by faults.
- System functions are affected by faults but can rapidly recover.
- System functions can be ensured by using redundancy design, switchover policy, and high success rate in switchover.
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The value of ospfdr-priority ranges from 0 to 255 and the default value is 64.
- True
- False
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