Centrex
Packet encryption
Intelligent call routing
QoS
第1题:
Which two statements about the QoS policy generation phase of the Cisco SDM QoS wizard are true? ()
第2题:
What ensures that voice packets are given priority throughout the network so that conversations arrive intact?()
第3题:
Which two statements are true about Voice over IP (VoIP) packet delivery in a digital infrastructure? ()
第4题:
What is the goal of QoS in a network? ()
第5题:
Which three practices are important to the implementation of a DiffServ QoS architecture?()
第6题:
What are two major sources of delay that can be managed by QoS in voice-enabled networks?()
第7题:
What ensures that voice packets are given priority throughout the network so that conversations arrive intact?()
第8题:
igmp snooping
wmm
qos element for wireless phones
avvid priority mapping
第9题:
the voice packet will be transmitted first, followed by the FTP packet in its entirety
the voice packet will be transmitted first, followed by the fragmented FTP packet
the FTP packet will be fragmented and the voice packet will be interleaved
the FTP packet will be transmitted first in its entirety, follow by the voice packet
第10题:
Because voice data packets must follow a single dedicated path through the network
Because voice data packets should arrive quickly and sequentially, and with no lost data
Because lost voice-data packets must be retransmitted
Because data does not need to arrive intact, so data transfer rates can be variable
第11题:
It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted first
It fragments larger packets and allows VoIP packets to be transmitted in between them.
It stops the transmission of large packets when priority packets arrive.
It sends high priority packets in between normal traffic packets.
第12题:
Call Management Link Agent
Traffic policing
Call Admission Control
QoS Link Congestion Management
Oversubscription Link Detection
第13题:
Refer to the exhibit. A router has a 256 kbps Frame Relay circuit connected to interface serial 0/0. As a large FTP packet is being placed into the hardware transmit queue of interface serial 0/0, a voice packet is placed into the priority queue of that interface. How, and in what order, wi the packets be transmitted?()
第14题:
Which parameter, when enabled on a standalone access point, gives the highest priority to a voice packet even when qos is not enabled?()
第15题:
Which statement is true about the Call Admission Control (CAC) feature in VoIP networks?()
第16题:
Which statement best describes the application of link fragmentation and interleaving (LFI)?()
第17题:
Why is QoS important in a converged network?()
第18题:
Which two statements are true about network voice traffic? (Choose two.)()
第19题:
Because data does not need to arrive intact, so data transfer rates can be variable
Because lost voice-data packets must be retransmitted
Because voice data packets should arrive quickly and sequentially, and with no lost data
Because voice data packets must follow a single dedicated path through the network
第20题:
Because services are allocated throughout the network before the transmission of data begins, traffic classes can be guaranteed QoS services.
Traffic classes are marked with Layer 2 markings to allow for more granularity in identifying traffic classes.
Traffic classes are marked with Layer 3 markings to allow them to traverse different network types without loss of QoS information.
Traffic classes allow networks to provide proper QoS treatment of packets without applications having to request services.
Based upon the network capabilities, QoS markings are placed on packets as needed throughout the network to allow for proper QoS treatment of packets.
QoS markings are placed on packets as close to the network edge as possible to allow distribution and core devices to determine QoS actions as quickly as possible.
第21题:
CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network.
CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network.
CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate.
In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.
第22题:
IPM should not be run on a production network.
IPM helps verify if a Service Provider is meeting the Service Level Agreement.
IPM contains a database that can store data on latency, jitter, and drops of voice packets over a period of weeks or months.
The QoS service policy should contain an allocation of sufficient bandwidth in the priority queue (LLQ) for both the SAA probe simulating a voice call and the voice call. If not, voice quality will suffer.
第23题:
prevent packets from being dropped
increase available bandwidth
reduce hardware errors
provide predictable network service
eliminate propagation delay
eliminate jitter and packet loss
第24题:
QoS
Centrex
Packet encryption
Intelligent call routing