As shown in the figure, when the link between SWC and LAND is faulty, through which path are TCA BPDUs sent?

A. From SWA to SWB

B. From SWB to SWC

C. From SWB to SWA

D. From SWC to SWB

In STP, BPDU packet is carried by ( ).

A. IP packet

B. TCP packet

C. Ethernet frame

D. UDP packet

The blacklist function on the firewall can filter packets based on destination IP addresses. A destination IP address can be dynamically added to or deleted from the blacklist.

A. True

B. False

Which of the following statements about different detection intervals at both ends of a BFD session is true?

A. The BFD session can be set up and the greater detection interval is used after negotiation.

B. The BFD session can be set up and the smaller detection interval is used after negotiation.

C. The BFD session can be set up and each end sends detection packets at its own interval.

D. The BFD session cannot be set up.

Which of the following statements about a backup router in a VRRP backup group are true? (Choose three.)

A. It receives VRRP packets from the master router and determines whether the master router is functioning properly.

B. It responds to the ARP requests sent from a virtual IP address.

C. It discards an IP packet whose destination MAC address is a virtual MAC address.

D. It discards an IP packet whose destination IP address is a virtual IP address.

The network 154.27.0.0 without any subnet can support() hosts?

A. 254

B. 1024

C. 65,534

D. 16,777,206

How does a BGP router process the received route whose next hop is unreachable?

A. The BGP router sends an error message to the router that has sent the Update message.

B. The BGP router accepts this route and adds it to the BGP routing table. This route, however, is neither preferred nor added to the IP routing table for packet forwarding.

C. The BGP router refuses this route.

D. The BGP router accepts this route and adds it to the BGP routing table. This route can participate in route selection and may be selected as the optimal route to be added to the IP routing table for packet forwarding.

Which of the following statements regarding traffic policing is true? (Choose all that apply.)

A. Packets cannot be colored.

B. Packets can be colored.

C. The packets of which the rate is exceeded can be buffered.

D. The packets of which the rate is exceeded cannot be buffered.

If the number of checked goods is different from the number of goods on the packing list, you can unpack and inspect goods and then contact the vendor to handle the inconsistency.

A. TRUE

B. FALSE

Congestion management uses queue scheduling to manage and control traffic when traffic congestion occurs.

A. True

B. False