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السؤال #1
To support the processing and calculation of IPv6 routes, IS-IS adds a new MLPID in TLV No. 129. MLPID is an 8-bit field that identifies a network layer protocol message. Which of the following is the MLPID value for IPv6?
A. 204
B. 142correct
C. 232
D. 236
عرض الإجابة
اجابة صحيحة: B
السؤال #2
On the same switch interface, the administrator can only configure traffic suppression for one of the following: broadcast, unknown multicast, unknown unicast, known multicast, and known unicast packets.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #3
The LSP information generated by a certain IS-IS router is shown in the figure. From the LSP information, it can be inferred that the router is not the DIS of this link.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #4
A network engineer accidentally deleted the IP address of an interface through the command line. If he wants to view the deleted IP address, which of the following information should he query?
A. Debug information
B. Log informationcorrect
C. Trap information
D. SNMP agent information
عرض الإجابة
اجابة صحيحة: B
السؤال #5
When the switch is configured with port isolation function, by default, different hosts belonging to the same VLAN cannot communicate at layer 1 and layer 3.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #6
For which packets can Huawei equipment perform traffic suppression? (Multiple choice)
A. Known Unicast
B. Multicast
C. Unknown Unicast
D. Broadcast
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #7
A network engineer outputs the following information when troubleshooting OSPF. Based on this, determine which reason causes the adjacency relationship to fail to be established normally?
A. Authentication password is not-consistent
B. Regional type is not-consistent
C. The interval for sending Hello messages is not-consistent
D. The IP address mask of the interface is not-consistent
عرض الإجابة
اجابة صحيحة: D
السؤال #8
MPLS needs to assign labels to messages in advance and establish an LSP before it can forward messages. LSP is divided into static LSP and dynamic LSP. Which of the following protocols can be used to establish a dynamic LSP? (Multiple choice)
A. IS-IScorrect
B. RSVP-TEcorrect
C. PIM-SM
D. LDPcorrect
عرض الإجابة
اجابة صحيحة: ABD
السؤال #9
A router runs OSPF, and the output information is shown in the figure. Which of the following statements is correct?
A. The type of the LSA is AS-external-LSA
B. The destination network described by this LSA is 10
C. The LSA in the figure is generated by this router
D. This device is an ABR
عرض الإجابة
اجابة صحيحة: B
السؤال #10
As shown in the figure, OSPF is enabled on all interfaces of the router. Which of the following statements is correct?
A. The Type1 LSA generated by R2 in area 0 contains the routing information of 10
B. The Type5 LSA generated by R2 in area 0 contains the routing information of 10
C. The Type2 LSA generated by R2 in area 0 contains the routing information of 10
D. The Type3 LSA generated by R2 in area 0 contains the routing information of 10
عرض الإجابة
اجابة صحيحة: A
السؤال #11
In the Hub&Spoke network shown in the figure, Hub-PE can allow local AS number duplication through manual configuration to achieve correct routing transmission.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #12
According to the configuration shown in the figure below, you can know that how many interfaces of R4 are advertised into IS-IS?
A.
B.
C.
D.
عرض الإجابة
اجابة صحيحة: B
السؤال #13
When executing a cutover project, network engineers can perform remote operations at the customer's network maintenance center and guide on-site construction personnel to complete hardware-related operations, such as powering on equipment and connecting equipment.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #14
A company purchased private lines from two operators. In order to optimize the lines, the company used the 6GP protocol to learn from two Route entries that operate off. However, after the enterprise found that this configuration, the traffic of the port route increased greatly, and the network engineering arrangement After investigation, it was found that the traffic of the two operators was passed to each other through the enterprise egress router. Therefore, the enterprise intends to use the routing stra
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #15
The exchange of Hello messages between two LSRs (Label switching Routers) triggers the establishment of an LDP session. The Hello message carries the transport address. The device with the smaller transport address will act as the active party and initiate the establishment of a TCP connection.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #16
As shown in the figure, R1, R2, and R3 run WPLS, and the administrator configures a static LSP from the 1.1.1.0/24 network segment to the 3.3.3.0/24 network segment. Which of the following descriptions of this scene are correct? (Multiple choice)
A. R3 will perform MPLS forwarding on the traffic sent from PC2 to PC1
B. R1 will perform MPLS forwarding on the traffic sent from PC1 to PC2
C. PC1 cannot access PC2
D. PC2 can access PC1correct
عرض الإجابة
اجابة صحيحة: ABD
السؤال #17
There are many types of MAC address entries on the switch. Which of the following types are manually configured by the user and cannot be aged? (Multiple choice)
A. Blackhole MAC address tablecorrect
B. MUX MAC address table
C. Dynamic MAC address table
D. Static MAC address tablecorrect
عرض الإجابة
اجابة صحيحة: AD
السؤال #18
The equipment operating environment refers to the external environment such as the equipment room, power supply, and heat dissipation where the equipment operates. This is the basic condition for the equipment to operate. For the maintenance of the equipment operating environment, the staff can only complete it by visiting the site in person.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #19
In a certain MPLS network, the LSP information of R1 and R3 is shown in the figure. At this time, the administrator enters the command ping -a 1.1.1.1 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?
A. The Echo Request message received by R2 carries label 1025, while the Echo Reply message received by R2 does not carry a label
B. The Echo Request message received by R2 carries label 1025, and the Echo Reply message received by R2 carries label 1024correct
C. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 does not carry a label either
D. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 carries label 1024
عرض الإجابة
اجابة صحيحة: B
السؤال #20
In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.X.X, where x is the device number. Check the detailed information of a certain LSA on R3, and you can infer from the output information that R1 and R2 are DRs in the network.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #21
According to this picture, cooked I'] can be judged?
A. R1ofGE0/0/1Interface is not enabledIS-IS IPv6
B. R1ofGE0/0/1interfaceIS-ISThe interface type isLeve-1
C. R1ofGEO/O/OinterfaceIS-ISThe interface type isLevel-1-2
D. R1ofGEO/O/Ointerface is enabledIS-IS IPv6
عرض الإجابة
اجابة صحيحة: CD
السؤال #22
Which of the following limitations of traditional networks do not include?
A. The implementation of network protocols is complex, and the operation and maintenance are difficult
B. Different manufacturers' equipments have similar operation commands, and the differences are small and easy to operate
C. The speed of new network service upgrade is slow
D. The adjustment capability of the traffic path is not flexible enough
عرض الإجابة
اجابة صحيحة: B
السؤال #23
Which of the following operations does a network engineer not need to perform when processing a single-hop BFD session Dom?
A. Repeat the display bfd statistics session all command to view the statistics of the BFD session sent and received packets
B. If a static route is bound to a BFD session, run the display ip routing-tab1e command to check whether the static route exists in the routing table
C. Run the display current-configuration configuration bfd command to check whether the local discriminator and remote discriminator at both ends of the BFD session match
D. Ping the link between the BFD sessions to check whether forwarding is normal
عرض الإجابة
اجابة صحيحة: C
السؤال #24
In the IS-IS network shown in the figure, R1 introduces the default route through the "default-route-advertise always level-1" command. Which of the following descriptions is wrong?
A. Ping any non-existent IP address on R1, such as 10
B. 10
C. 10
D. 10
عرض الإجابة
اجابة صحيحة: A
السؤال #25
In order to protect the BGP protocol from attacks, Keychain authentication can be used between BGP neighbors to reduce the possibility of attacks. The keychain has a set of passwords that can be automatically switched according to the configuration, which is suitable for networks with high security requirements.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #26
The equipment operating environment refers to the external environment such as the equipment room, power supply, and heat dissipation where the equipment operates. This is the basic condition for the equipment to operate. For the maintenance of the equipment operating environment, the staff can only complete it by visiting the site in person.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #27
According to this figure, it can be known that in VLAN 300, on 2020-06-04, from 17:22:38 to 17:22:44, how many MAC flaps does the 00e0-fc3d-3bdb have?
A. 5correct
B. 65535
C. 300
D. 1
عرض الإجابة
اجابة صحيحة: A
السؤال #28
Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure. Which router can the route entry 10.10.10.0/24 advertised by R1 be delivered to?
A. 1
B. 2
C. 3
D. 4
عرض الإجابة
اجابة صحيحة: C
السؤال #29
In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.XX, where X is the device number. Check the detailed information of a certain LSA on R3. From the output information, it can be inferred that the LSA is generated by R2, and it describes the IPv6 prefix address associated with the Network-LSA.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #30
In the multi-level RR scenario, a large number of secondary RRs will be connected to the primary RR, which may lead to BGP of the primary RR. The routing table overflows, what method can be used to reduce the risk of overflowing the routing table of the advanced RR BGP?
A. ORF
B. route aggregation
C. routing control
D. set the sameCluster-ID
عرض الإجابة
اجابة صحيحة: B

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