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السؤال #1
For Layer 2 VPN technology, the following statement is correct? Multi-select
A. VPLS is a widely used technology in the live network, which can provide transparent transmission of three-layer messages and achieve multi-point access
B. The VPLS configuration is complex and the Layer 2 network transmits BUM packets
C. BGPEVPN supports features such as tenant isolation, Multi-homing, and broadcast suppression
D. BGPEVPN addresses mac address drift and multi-tenancy that VPLS cannot support
عرض الإجابة
اجابة صحيحة: ABC
السؤال #2
A switch joins a running stacking system after powering up, a behavior known as heap overlay.
A. TRUEcorrect
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #3
After BGP introduces routes for other protocols, the next hop in the BGP routing table is consistent with the next hop of the introduced routing protocol
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #4
In RSTP, which port provides a backup path to reach the root node of the spanning tree? What state is the port in?
A. Root Port and Listening Status
B. Alternate Port and Forwarding Status
C. Alternate Port and Learning Status
D. Designated port and Listening status
E. Alternate port and Discarding statuscorrect
عرض الإجابة
اجابة صحيحة: E
السؤال #5
The Accept-Language ?eld in the HTTP request header indicates the languages preferred by a client as a response to the request.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #6
All routers in a network enable the SR-MPLS function based on OSPF. The SRGB of each router is as shown in the figure. By default, when R3 forwards a packet with the destination address 10.0.4.4, the SRGB carried is as shown in the figure. It shows that by default, when R3 forwards a packet with the destination address 10.0.4.4, which of the following MPLS labels is carried?
A. 50100correct
B. 40100
C. 100
D. 3
عرض الإجابة
اجابة صحيحة: A
السؤال #7
Which of the following is the meaning of the ipv6 enable topology ipv6 command in IS-IS protocol view?
A. IPv4 and IPv6 use the same topology for SPF calculation
B. SPF calculation is performed separately in IPv4 and IPv6 topologies
C. SPF calculation for IPv6 routing is not supported
D. Does not have any meaning
عرض الإجابة
اجابة صحيحة: B
السؤال #8
As shown in the figure, which of the following options satisfies two routers to establish an ISIS neighbor?( Single choice questions).
A. Both routers are of The Level-1 type
C. One of the two routers can be of the Level-1-2 type and the other of the Leve1-1 type
عرض الإجابة
اجابة صحيحة: B
السؤال #9
The enterprise WAN provides interconnection between enterprise headquarters and branches, between enterprises and clouds, and between clouds.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #10
Regarding the description of configuring the security level of the firewall security zone, which of the following statements is correct?
A. For the newly created security zone, the system default security level is 1
B. The security level can only be set for customized security zones
C. In the same system, two security zones are not allowed to configure the same security level
D. Security level - once set, no changes are allowed
عرض الإجابة
اجابة صحيحة: A
السؤال #11
Which of the following descriptions about labels is wrong?
A. The LSP established by statically assigning labels can also be dynamically adjusted according to network topology changes without administrator intervention
B. The principle to be followed when manually assigning labels is that the value of the outgoing label of the upstream node is the value of the incoming label of the downstream node
C. LSP is divided into two types: static LSP and dynamic LS: Static LP is manually configured by the administrator, and dynamic LSP is dynamically established using label protocol
D. Dynamic SP is dynamically established through label publishing protocols, such as MP-BGP, RSVP-TE, and LDP
عرض الإجابة
اجابة صحيحة: A
السؤال #12
If the Option field value in the 0SPFv3 Hello message issued by the router's GIgabit Ethermet0/0 interface is 0x000013, the following description is correct
A. The Gigabit/thernetO/0/0 interface of Router A adds IPv6 routing to computecorrect
B. Router A's Gigabit/thernetO/0/0 interface belongs to the NSSA zone
C. Router A supports AS-An External-LSA floodcorrect
D. Router A is an OSPFv3 device with forwarding capabilitycorrect
عرض الإجابة
اجابة صحيحة: ACD
السؤال #13
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following fields is not carried in BGP EVPN Type 2 routes?
A. L2VNI
B. L3VNIcorrect
C. IP Address
D. IP Prefix
عرض الإجابة
اجابة صحيحة: B
السؤال #14
What of the following actions can enable fast failure detection on multicast networks?
A. Shorten the Holdtime of Join/Prune messages
B. Reduce the interval at which the interface sends Hello messagescorrect
C. A PIM BFD session is established between neighbors
D. Reduce the interval between sending Join/Prune messages
عرض الإجابة
اجابة صحيحة: B
السؤال #15
Enterprises can access the Internet through dial-up connection, xDSL, xPON, etc.
A. TRUE
B. FALSEcorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #16
Which of the following statements is incorrect about BGP/MPLS IP VPN data forwarding?
A. A data packet always carries two labels when being transmitted on a BGP/MPLS IP VPN backbone network
B. The outer label used to guide data forwarding can be distributed by LDcorrect
C. The inner label used to guide data forwarding is distributed by MP- BG
D. Packets sent by a PE to a CE are IPv4 packets
عرض الإجابة
اجابة صحيحة: B
السؤال #17
To implement the traffic filtering function, you can use trapp-filter or MQC, which can be called in more views than traffic-filter
A. FALSE
B. TRUEcorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #18
Which of the following descriptions about the difference between SPFv2 and SPFv3 are correct?
A. Both SPFv2 and SPFv3 support interface authentication, and OSPFv3 authentication is still implemented based on the fields in the SPF packet header
B. SPFv3 is similar to SPFv2 and uses the multicast address as the destination address of SPF packetscorrect
C. SPEv2 and OSPFv3 have the same type of packets: Hello, ODD, LSR, LSU, LSAack, and their packet formats are the same
D. The protocol number of SPFv2 in the IPv4 header is 89, and the next header number of OSPFv3 in the IPv6 header is 89
عرض الإجابة
اجابة صحيحة: B
السؤال #19
The switch SWA and SWB are connected together by 2 Ethernet links, where the switch SWA has the following interface configuration:
A. Without changing the current configuration, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 can join the same aggregation group
B. Because of the different VLANs allowed, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 cannot join the same aggregation group
C. After link clustering is configured on both SWA and SWB, if MSTP is enabled on the switches SWA and SWB Both GigabitEthernetl1/0/1 and GigabitEthernetl/O/2 are the forwarding status of MSTP
D. Only if the configuration of GigabitEthernet 1/0/2 is changed to match GigabitEthernet 1/0/1 can the two join the same aggregation group
عرض الإجابة
اجابة صحيحة: BD
السؤال #20
The switch can suppress traffic by suppressing traffic and extremely other failures can affect operations, which of the following traffic suppression configurations is the wrong configuration
A. [Quidway] wan 10 [Quidway-wan10] multicast-suppression 1000 [Quidway-van10] quitcorrect
B. [Qudway ineface gigabtethemnet /0'1[Quidway-GigabitEfthemetO0/O/1]multicast-suppression 80TQuidway-GigabitEthernet0/0/1]quit
C. Quidway inteface gigabiethenet ou0/1[Quidway-GigabtEthernet/0/1J,broadcast-suppression 80 IQuidway-GigabitEthernet//1]Jqut
D. [Quidway] icmp rate-limit enable [Quidway] icmp rate-limit total threshold 20
E. [Quidway ] wan 10 [Quidway-wani0] broadcast-suppression 1000 [Quidway-van10] quit
عرض الإجابة
اجابة صحيحة: A
السؤال #21
When the client calls the iMaster NCE-Campus login authentication RESTful interface, the method used is POST, and the request message body format is {"userName": "xxx", "password": "xxx"}
A. TRUE
B. FALSEcorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #22
For telemetry data push, data can be transferred between devices and collectors using the TLS protocol. TLS must be configured for data encryption if data is pushed based on gRPC.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #23
BGP routing policies can control the publication and acceptance of routes
A. TRUEcorrect
B. FLASE
عرض الإجابة
اجابة صحيحة: A
السؤال #24
A company's two-layer phase network architecture as shown in the figure, when the engineer is configured to find that the business between departments can not communicate, through the command to view the status of the equipment as follows, please determine the possible causes?
A. The BPDU interval between switches is not configured
B. The Transition VLAN mapping between the handover machines is not configured to be caused
C. The Revislon Level configuration is inconsistent between switches
D. Inconsistent Registry Name configuration between text exchange machines
عرض الإجابة
اجابة صحيحة: BCD
السؤال #25
Using BGP EVPN as the control plane of VXLAN can completely avoid traffic flooding in the VXLAN network, such as ARP broadcast packets.
A. TRUE
B. FALSEcorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #26
The data results of a router are as follows, and the analysis conclusion is correct (single choice). A. The GEO/0/0 port of the A. R3 is in a different region than the neighbor B. The B. R3 router's Eth0/0/1 enables both IPv4 and IPv6 ISIS C. R3 is on the link where Eth0/0/0 is Eth0/ 1 of the LEVEL-1 and Level-2 DISC D. R3 routers Circuit-level is Level-1-2
The data results of a router are as follows, and the analysis conclusion is correct (single choice). A
عرض الإجابة
اجابة صحيحة: D
السؤال #27
Which of the following descriptions about BGP/MPLS IP VPN routing interaction is wrong?
A. After receiving the VPNv4 route advertised by the ingress PE, the egress PE filters the VPNv4 routes according to the RT attribute carried by the route
B. The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routes
C. The exchange between PE and CE is IPv4 routing information
D. The ingress PE converts the IPv4 routes received from the CE into VNPv4 routes, and saves them according to different VPP instances
عرض الإجابة
اجابة صحيحة: A
السؤال #28
Based on the information given in the figure, which of the following statements is correct?
A. Unable to determine the device type of R3
B. The device type of R3 must be Level-1-2correct
C. The device type of R3 must be Level-2
D. The device type of R3 must be Level-1
عرض الإجابة
اجابة صحيحة: B
السؤال #29
A VRRP virtual router configuration VRID is 3 and the virtual IP address is 100.1.1.10, so what is the virtual MAC address?
A. O0-00-5E-00-01-64
B. 01-00-5E-00-01-03
C. 01-00-5E-00-01-54
D. 00-00-5E-00-01-03correct
عرض الإجابة
اجابة صحيحة: D
السؤال #30
As a network administrator, which of the following protocols can I use for network device configuration?
A. SSHcorrect
B. NETCONFcorrect
C. LLDP
D. SNMPcorrect
عرض الإجابة
اجابة صحيحة: ABD

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