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NEW QUESTION # 73
In an MPLS network, there are different types of operations for labels, among which the meaning of the "pop" action is?
- A. Replace the top label with another set of labels
- B. Remove the top label from the MPLS label stack
- C. Replace the top label with another value
- D. Add the top label to the MPLS label stack
Answer: B
NEW QUESTION # 74
During the process of viewing the debug input through the SSH terminal, there is a lot of pop-up information. Which of the following operations can make the monitor terminal no longer pop up the debug message?
- A. Open Notepad and enterundo terminal debugging,Copy the command line and paste it intoMonitorinterface
- B. exit currentMonitorinterface, re-SSHLog in to the device to open a new oneMonitorinterface
- C. Open Notepad and enterundo debugging all,Copy the command line and paste it intoMonitorinterface
- D. Open Notepad and enterundo terminal monitor,Copy the command line and paste it intoMonitorinterface
Answer: A,C
NEW QUESTION # 75
What is the command to adjust the link cost value of an IS-IS interface?
- A. isis circuit-level
- B. isis cost
- C. isis timer hello
- D. isis circuit-type
Answer: B
NEW QUESTION # 76
Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?
- A. ExportPEable to passBGP,IGPor static routing to the remoteCEsendIPv4routing
- B. ExportPEupon receiving the entrancePEpostedVPNv4After routing, according to the route carriedRTproperty, yes VPNv4route to filter
- C. EntrancePEwill be fromCEreceivedIPv4route becomesVPNv4routing, and vary according toVPNsave the instance
- D. PEandCEthe interaction isIPv4routing information
Answer: A
NEW QUESTION # 77
IGP converges faster than BGP, which may cause network traffic loss. By enabling the OSPF and BGP linkage feature of the device, the device can keep the OSPF and BGP linkage during the set linkage time.____The router makes the link metric value in the LSA advertised to be the maximum value, so as to inform other OSPF devices not to use this router to forward data, so as to avoid traffic loss. (Note: If English letters are involved, all uppercase)
Answer:
Explanation:
STUBROUTER
NEW QUESTION # 78
LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?
- A. conversation message
- B. discovery message
- C. label exchange message
- D. announcement message
Answer: C
NEW QUESTION # 79
In OSPFv3, an LSA whose propagation range is one area has_____kind. (Fill in Arabic numerals only)
Answer:
Explanation:
9
NEW QUESTION # 80
OSPFv2 is an IGP running on an IPv4 network, OSPFvV3 is an ICP running on an IPv6 network. OSPFv3 and OSPFv2 have the same message types, including Hallo messages, DD messages, LSU messages, LSU messages and SACK messages.
Regarding OSPFv3 packets, which of the following statements is correct?
- A. OSPFv3 uses the authentication field in the header of the message to complete message authentication
- B. OSPFv3 uses the link-local address as the source address of the sent message, and the message can be forwarded outside the range of the originating link
- C. OSPFv3 uses IPv6 multicast addresses FFO2::5 and FFO2:.6 to send OSPFv3 packets
- D. The He11o packet of OSPFv3 carries the IPv6 address prefix list of the router interface
Answer: C
NEW QUESTION # 81
A park deployed IPv6 for business testing. There are 4 routers (R1, 22, R3 and R4) in this network, running OSPFv3 to realize the interconnection of IPv6 network. There is a new router R5 that needs to be connected to the network for testing. An engineer introduced a direct route in the OSPFvV3 process of R4 to realize that the devices in the campus network can access the GE0/0/1 port address of R5. Which of the following descriptions of the scene are correct? (Multiple choice)
- A. R4 will generate a Type5 LSA and only flood in Area 1
- B. R2 will generate a Type4 LSA and only flood in Area 0
- C. R2 will generate a Type4 LSA describing the Router ID of R4
- D. R4 will generate an IPv6 routing prefix introduced by Type5 LSA description
Answer: B,C,D
NEW QUESTION # 82
Which of the following are static information coke analysis?
- A. Packet loss rate
- B. Interface Type
- C. Equipment type
- D. License
Answer: B,C,D
NEW QUESTION # 83
In BGPIMPLS IP VPN, if the OSPF protocol is used between PEs and CEs to exchange routing information, the domain identifier (Domain ID) is used to distinguish whether the incoming routes in the VPI instance come from the same OSPF domain.
- A. False
- B. True
Answer: B
NEW QUESTION # 84
After the cutover acceptance is completeD. what work still needs to be performed in the closing stage?
- A. field defense
- B. Transfer training
- C. data transfer
- D. Acceptance summary
Answer: A,B,C,D
NEW QUESTION # 85
Which of the following statements about VLAN aggregation is true?
- A. Sub-VLANfor isolating broadcast domains
- B. Sub-VLANContains physical interfaces. Three layers can be builtVLANIFinterface
- C. Super-VLANOnly physical interfaces cannot establish Layer 3VLANIFinterface
- D. OneSuper-VLANcan contain one or moreSub-VLAN
Answer: A,D
NEW QUESTION # 86
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. route aggregation
- B. ORF
- C. set the sameCluster-ID
- D. routing control
Answer: A
NEW QUESTION # 87
As shown in the figure, a certain park has deployed IPv6 for service testing, and there are 4 routers in the network. Run OSPFv3 to realize network interconnection.
Regarding the LSA generated by the OSPFv3 network, which of the following statements is wrong?
- A. There is a Network LSA generated by R3 in the LSDB of R1, indicating that R3 may be the DR of this link
- B. R1 itself will generate Router-LSA to describe device interface information, and will receive Router-LSA generated by R2 and R3 at the same time
- C. As an ABR, R2 will generate Inter-Area-Prefix-LSA describing the IPv6 address prefix of Area 1, and advertise it to R1 and R3
- D. R1 will receive the two Link-LSAs generated by R2, describing the two links information connected to R2 respectively
Answer: D
NEW QUESTION # 88
multiple equal-cost routes may appear. About the IS-IS network , which of the following descriptions is false?
- A. For each route in the equal-cost route, a priority can be specifieD. and the route with higher priority will be preferred. the rest as backup routes
- B. If load sharing is configureD. the traffic will be evenly distributed to each link
- C. After configuring equal-cost route priorityJS-ISWhen the device forwards the traffic reaching the destination network segment, it will not adopt the load balancing methoD. but forward the traffic to the next hop with the highest priority
- D. When the number of equal-cost routes in the network is greater than the number configured by commands, and these routes have the same priority, the next-hop device is preferredSystem IDLarge routes for load balancing
Answer: C
NEW QUESTION # 89
After the cutover is completed, which items generally need to be checked? (Multiple choice)
- A. Control plane entries
- B. Software version
- C. Data flow
- D. Physical topology
Answer: A,C
NEW QUESTION # 90
Network administrator A wants to use A, CL to match specific routing entries. Which of the following routing entries will be matched by the A, CL rules in the figure?
acl number 2000
rule 10 permit source 10.0.0.0 0.0.6.0
- A. 10.0.2.0/24
- B. 10.0.0.1/32
- C. 10.0.0.0/24
- D. 10.0.1.0/24:
Answer: A,C
NEW QUESTION # 91
An enterprise purchased the leased lines of two operators. In order to optimize the route, the enterprise used the 6GP protocol to learn routing entries of the two operators. However, the company found that after such a configuration, the traffic of the export routing increased greatly. After the network engineering investigation, it was found that the traffic of the two operators was passed to each other through the company's export router.
Therefore, the company intends to use routing strategies to prevent the traffic between different operators from passing each other. Is the configuration in the figure correct?
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 92
Which description is correct about the MPLS forwarding mechanism? (Multiple choice)
- A. The system automatically assigns an ID to the upper-layer application that uses the tunnel, also known as Tunnel ID
- B. When an IP packet enters the MRLS domain, the FIB table is the first to be checked
- C. If the Tunnel ID value is not 0x0, enter the normal IP forwarding process
- D. If the Tunnel ID value is 0x0, enter the MPLS forwarding process
Answer: A,B
NEW QUESTION # 93
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