What happens when the topology of a network running RSTP changes?
A. The entire MAC address table is deleted.
B. The aging time of MAC address entries is changed.
C. Packets are flooded on the entire network.
D. Some MAC address entries are deleted.
正解:D
質問 2:
In addition to P2P network, which of the following network types is supported in IS-IS else?
A. P2MP
B. NBMA
C. LAN (broadcast network)
D. SNAP
正解:C
質問 3:
MPLS uses LDP to provide different label distribution modes.
Which of the following statements regarding LDP label distribution control modes are false? (Multiple Choice)
A. In independent mode, an LSR cannot send label mapping messages to the upstream router before it receives label mapping messages from the next hop LSR.
B. LDP label distribution cannot be controlled in independent mode.
C. In ordered mode, when an LSR is the origin of a route, it can send label mapping messages to the upstream router initiatively and does not need to wait for label mapping messages from the next hop LSR.
D. LDP label distribution can be controlled in ordered mode.
正解:A,B
質問 4:
Which of the following events represent the end of the network planning stage?
A. Project initiation
B. Preliminary project acceptance
C. Contract signing
D. Bid release
正解:D
質問 5:
In vAR application scenarios, which functions of the AR Router can be virtualized on a server? (Multiple Choice)
A. NAT
B. VoIP
C. VPN
D. Firewall
正解:A,B,C,D
質問 6:
The traditional tail drop method is used for packet loss, which causes global TCP synchronization.
A. TRUE
B. FALSE
正解:A
質問 7:
Which of the following statements regarding join member interfaces are false when link aggregation works in manual mode?
A. An Eth-Trunk can work in Layer 2 or Layer 3 mode. The two working modes can be identified automatically and do not need to be switched manually.
B. An Eth-Trunk cannot be nestled, and a member interface cannot be an Eth-Trunk.
C. An Ethernet interface can join only one Eth-Trunk. Before adding an Ethernet interface to an Eth-Trunk, ensure that the Ethernet interface does not belong to any other Eth-Trunk.
D. If the local device uses the Eth-Trunk, the remote interface directly connected to the member interface must join the Eth-Trunk so that both ends can communicate.
正解:A
質問 8:
Congestion means that the service rate is reduced because of insufficient network resources Congestion avoidance technologies include RED and WRED.
A. TRUE
B. FALSE
正解:A
大村** -
とくに今回のH12-224-ENU問題集は最新版になっていて、購入して一週間後に早くも受験したんだけど、無事合格することができました。