A. The SDM QoS wizard will create two real-time traffic classes to handle VoIP and voice signaling packets.
B. The SDM QoS wizard will create three real-time traffic classes to handle VoIP， voice signaling， and video packets.
C. The SDM QoS wizard will create four real-time traffic classes to handle VoIP， voice signaling， video， and video streaming packets.
D. The SDM QoS wizard will create two business-critical traffic classes to handle transactional and network management packets.
E. The SDM QoS wizard will create three business-critical traffic classes to handle transactional， network management， and routing packets.
F. The SDM QoS wizard will create four business-critical traffic classes to handle transactional， network management， routing， and best-effort packets.
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A. A class can be identified as a single application， multiple applications with similar service needs， or be based on the source or destination IP addresses.
B. A drawback of the DiffServ model is that it does not provide backward compatibility with devices that can only use the ToS field.
C. DiffServ uses the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）.
D. The DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field.
E. The first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value.
F. The primary goal of DiffServ is scalability.
A. sampling
B. packetization
C. quantization
D. serialization
A. Calls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.
B. Calls to the PSTN can be made via FXS or T1/E1 trunk ports.
C. Analog and IP phones can be connected to the VoIP network via FXO or T1/E1 trunk ports.
D. Calls between analog phones that are attached to the FXS ports in a VoIP network can be completely processed by voice-enabled routers.
A. Standard encoding techniques create an uncompressed digital data rate of 4000 bps.
B. Standard encoding techniques create an uncompressed digital data rate of 8000 bps.
C. Standard encoding techniques create an uncompressed digital data rate of 64，000 bps.
D. Voice quality is not a concern if compression is not used.
E. Two methods of quantization are linear and logarithmic.
F. Two methods of compression are u-law and a-law.
A. The three required steps in the analog to digital conversion are sampling， encoding， and compression.
B. The three required steps in the analog to digital conversion are sampling， quantization， and compression.
C. The three required steps in the analog to digital conversion are sampling， quantization， and encoding.
D. The output of the sampling process is a pulse code modulation （PCM） signal.
E. The output of the sampling process is a pulse amplitude modulation （PAM） signal.
A. CBWFQ
B. LLQ
C. traffic shaping
D. WRED
A. policy routing
B. increase link capacity
C. WRED
D. CBWFQ
E. LFI
F. WFQ
A. EAP-FAST has the ability to tie login with non-Microsoft user databases
B. EAP-TLS supports static passwords
C. PEAP supports one-time passwords
D. LEAP does not support multiple operating systems
E. LEAP supports Layer 3 roaming
F. PEAP does not work with WPA·
A. End-to-end delay is the sum of propagation delays， processing delays， serialization delays， and queuing delays.
B. Coast-to-coast end-to-end delay over an optical link is about 20 ms.
C. Processing delay depends on various factors， which include CPU speed， CPU utilization， IP switching mode， and router architecture.
D. Propagation and serialization delays are related to the media.
E. Propagation delay is the time it takes to transmit a packet and is measured in bits-per-second （bps）.
F. Serialization delay is the time it takes for a router to take the packet from an input interface and put it into the output queue of the output interface.
A. Implementing DiffServ involves the configuration of RSVP.
B. Implementing IntServ allows QoS to be performed by configuring only the ingress and egress devices.
C. Implementing IntServ involves the utilization of RSVP.
D. Traffic should be classified and marked by the core network devices.
E. Traffic should be classified and marked as close to the edge of the network as possible.
最新试题
In a VoIP network， which type of interface would an analog fax machine connect to？（）
Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony？（）
Within the WMM policy， how many default QoS radio access categories are there？（）
Which Control Plane Policing （CoPP） statement is true？（）
Which three functions can an Integrated Services Router perform in a VoIP network？（）
What are two reasons to implement H·323 gatekeepers？（）
Which two statements about the Wi-Fi Multimedia （WMM） standard are true？（）
Which three practices are important to the implementation of a DiffServ QoS architecture？（）
The Cisco SDM will create a QoS policy that provides services to two types of traffic. Which two statements indicate the default QoS parameters that are created by SDM？（）
SDM creates a low latency queuing （LLQ） service policy with its associated classes. What are the two types of low latency queuing available using the SDM QoS wizard？（）