HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) (H12-261-ENU) Free Practice Test

Question 1

If the PPP link between R1 and R2 is shown, and the direct connection port is not on the same network segment, but the R1 and R2 direct connection ports can communicate, and the Ethernet link cannot communicate under the same IP planning, what is the reason? (Multiple choice)

A. The interconnected POS port of R1 and R2 learns the MAC address of the peer interface through LCP, and does not require the ARP request MAC address.

B. R1 and R2 are connected to the POS port, and the 24-bit subnet route of the direct connection port of the other party is learned through IPCP.

C. R1 and R2 are connected to the POS port, and the 32-bit host route of the direct connection port of the other party is learned through IPCP.

D. The data packets of the interconnected POS interface of R1 and R2 do not need to encapsulate the Ethernet header, and do not need to use ARP to request the MAC address.

Correct Answer: C,D

Question 2

Regarding route introduction, which of the following description is wrong?

A. Introducing IBGP routes in OSPF may cause routing loops.

B. bgp supports both import and network when generating routes. Network mode is more accurate.

C. After the ISIS level-2 network route is imported to the level-1 route, the routing loop is formed if the import policy is not manually configured.

D. By default, the default metric of the external route redistributed by OSPF is 1, and the imported external route type is Type2.

Correct Answer: C

Question 3

Network administrators can use CAR technology in traffic policing. Which of the following technologies can be applied in CAR?

A. Three barrels single speed

B. Single barrel single speed

C. Double barrel double speed

D. Double barrel single speed

Correct Answer: B,C,D

Question 4

The HTTP protocol is based on TCP, so you can use the TCP Flood attack defense method to defend against HTTP Flood attacks.

A. False

B. True

Correct Answer: A

Question 5

The following is about the LDP protocol session establishment process, which is the correct description? (Multiple Choice)

A. After both parties receive the Keepalive message from the peer, the LDP session is established successfully.

B. After the TCP connection is successfully established, the active party sends an initialization message to negotiate the parameters related to the LDP session.

C. The Hello message discovered by the LDP neighbor uses TCP packets. The destination address is the multicast address 224.0.0.2.

D. The party with the larger transmission address acts as the active party and initiates the establishment of TCP connection.

Correct Answer: A,B,D

Question 6

To view the routing table of router R1, execute the command "display ip routing-table" on the route R1. Router R1 runs OSPF. Which of the following is true about the OSPF information in the routing table?

A. In the routing table, the routing entry identified by the "OSPF" identifier are learned through the Type 7 LSA imported from other processes to OSPF.

B. In the routing table, the routing entry identified by the "O_IA" identifier is the intraregional routing.

C. In the routing table, the routing entry identified by the "O_ASE" identifier indicates that the entry was learned through a Type 1 LSA or a Type 2 LSA.

D. In the routing table, the routing entry identified by the "O_ASE" identifier indicates that the entry can only be learned through routing.

E. In the routing table, all types of LSAs correspond to unique destination addresses.

Correct Answer: D

Question 7

If OSPF is running on the network, the non-backbone area in the OSPP area is configured as the LSA with the ls-id of 0.0.0.0 in the Totally Stub Totally Stub area. What type of LSA is the LSA?

A. LSA5

B. LSA2

C. LSA3

D. LSA1

Correct Answer: C

Question 8

In the MPLS-BGP-VPN environment, if the label is only distributed through BGP or LDP, the MPLS label of the packet has at most two layers of labels.

A. False

B. True

Correct Answer: A

Question 9

The configuration of two routers in a company is as follows. which of the following statement about the R1 routing table is correct?

A. If the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.

B. If the priority of the ISIS protocol of R1 is adjusted to 5, the P route entry of the destination network segment with the destination network segment of 10.1.2.2/32 is generated by OSPF.

C. If the priority of the R1 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.

D. Only when the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.1.2.2/32 on R1 is generated by OSPF.

Correct Answer: C

Question 10

Which of the following descriptions are correct about the PPPoE data frame? (Multiple Choice)

A. Once the PPPoE session is established, all Ethernet packets are unicast

B. The Session_ID of the PPP session is not allowed to change, it must be specified in the Discovery phase.

C. The Ethernet_Type field is fixed to 0x8863.

D. When PPPoE passes session data, Code must be set to 0x0.

Correct Answer: A,B,D

Question 11

When there are multiple matching rules in the ACL of the VRP, which of the following statements is correct about the matching order?

A. By default, match according to rule-id, from small to large

B. By default, match according to the principle of "depth first"

C. By default, match the permit first and deny later.

D. There is only one matching order and cannot be modified

Correct Answer: A

Question 12

Which of the following is correct about the ISIS GR description?

A. The GR feature of ISIS is enabled by default.

B. ISIS GR defines a new TL structure to support this feature

C. ISIS GR notifies the event and maintains the neighbor relationship through the CSNP message.

D. ISIS GR has four timers.

Correct Answer: B

Question 13

Which of the following description about the assertion mechanism is correct?

A. The size of the IP address will not be used as a condition for election during the election of the winner.

B. In the assertion mechanism, loser shut down the interface connected to the broadcast network.

C. In the assertion mechanism, the winner is responsible for forwarding multicast data to the broadcast network segment.

D. The assertion mechanism is used for the election of the DR.

Correct Answer: C

Question 14

The OSPFv3 Option field appears in all LSAs.

A. False

B. True

Correct Answer: A

Question 15

What is the main reason why RSTP converges faster than STP?

A. RSTP has less overhead

B. RSTP increases the type of port status

C. RSTP is not based on timer convergence

D. RSTP has a smaller timer

Correct Answer: C

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Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) (H12-261-ENU) Free Practice Test