The five classes in the OSPF LSA LSA are used for external route delivery.
A. The external routing meter can be calculated by the ASBR LSA LSA in the same area as the router in the same area.
B. The strategies for configuring the phase can be five ABR ASBR LSA should filter the class
C. Category 5 LSA ASBR Stub/NSSA OSPF is advertised and flooded in the network in the non-region
D. In the five types of LSA FA FA 0.0.0.0, the address is included, but the reservation is not effective.
Which ip as-path-filter 1 permit ^12.*74$ AS_PATH can be matched with the command
A. AS_PATH (32 1274 23)
B. AS_PATH (123 621 743 2374)
C. AS_PATH (321 12 2374)
D. AS_PATH (125 328 74 23)
If there is a LAN 802.1D tree protocol running on the generated network, the non-root carrier will not receive the following parameters from the root transmitter.
A. MaxAge
B. Root cost
C. Forward delay
D. Hold time
E. Hello time
In which of the following scenarios will gratuitous ARP packets be sent?
A. A host connected to the switch sends a ping packet.
B. The DHCP client receives an acknowledgment message from the server
C. A new host with an IP address is connected to the network.
D. The master and backup devices are elected in VRRP.
Which of the following statements regarding route import is false?
A. Importing IBGP routes into the OSPF process may cause routing loops.
B. By default, the metric of external routes imported into the OSPF process \s 1 and the type of imported external routes is Type 2.
C. BGP can generate routes in either Import or Network mode. The Network mode is more precise than the Import mode.
D. After IS-IS Level-2 routes are imported to an ISTS Level-1 area, routing loops occur if no route import policy is manually configured.
As shown in the following topology, EBGP runs between AS100, AS200, AS300, and AS400, and peer relationships have been established between them. When AS400 receives a BGP route to the network segment 1.1.1.1/32 from AS100, which of the following is the correct value of the AS_Path attribute?

A. 100,200,300,400 $
B. 300,200,100
C. 400,300,200,100
D. 10,200,300
A network with the typology shown in the figure below is set up in a lab. On the network, SW1 uses the default configurations, and STP disables on SW2. Given this information, which of the following statements is true?

A. Go/0/2 of SW2 enters the Discarding state.
B. G0/0/1 of SW1 enters the Discarding state.
C. G0/0/1 of SW2 enters the Discarding state.
D. No interface is blocked.
E. G0/0/2 of SW1 enters the Discarding state.
Network administrators can use CAR technology in traffic policing. Which of the following technologies can be applied in CAR?
A. Dual buckets at dual rates
B. Single bucket at a single rate
C. Three buckets at a single rate
D. Dual buckets at a single rate
Which of the following statements regarding OSPFv3 Link-LSAs is true?
A. The Link-LSA contains both the link-local address and all IPv6 prefixes of the interface
B. The Link-LSA contains both the link-local address of the interface and all IPv6 prefixes of the same area on the router
C. The Option field exists in an LSA header rather than the data area of a Link-LSA
D. If the PrefixOptions field of a prefix in the Link-LSA is 0x00, the prefix is not involved in the IPv6 unicast calculation
Which of the following SDN controllers uses VXLAN technology?
A. Agile Controller-DCN
B. Agile Controller-WAN
C. Agile Controller-Campus