H12-224 practice questions, page 4 of 14, with answer review and explanations.
Question 16
Traffic shaping uses queues to cache traffic whose transmission rate exceeds the limit. Which of the following statement about traffic shaping is not true?
Compared with traffic policing, traffic shaping is advanced in terms of caching burst traffic.
With traffic shaping, packets can be transmitted at an even rate.
Caching packets in the queue increases the packet delay in case of congestion.
In case of congestion, traffic shaping causes the packet loss ratio to increase.
Question 17
Which of the following statements are correct regarding VRRP?
Only Master can process the data packets sending to virtual router.
Only Slave can process the data packets sending to virtual router.
Both Master and Slave can process the data packets sending to the same virtual router to realize load balance.
By default, only Master can process the data packets sending to virtual router; but we can do some configuration to make the Slave process the data packets sending to virtual router.
Question 18
Which of the following statement about QoS in DiffServ mode is false?
The parameter field in the IP packet header informs devices on the network of the QoS requirements of the application.
Every device on the packet transmission paths can learn the service request types by analyzing the IP packet header.
Before sending packets, the application program needs to confirm that the network has reserved resources for packet transmission.
DiffServ is a QoS solution based on packets.
Question 19
In addition to traffic rate limit, the CAR can mark packets with colors. If one token bucket & one-rate is used in traffic policing and the number of tokens is insufficient, packets are marked with which of the following color?
Red
Green
Yellow
Blue
Question 20
BFD is a common fast detection technology. It implements the fast switchover function only when collaborating with other fast switchover technologies.