A.the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office
B.the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone
C.the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone
D.the FXS interface connect directly to ISDN voice channels
您可能感興趣的試卷
你可能感興趣的試題
A.the Cisco WCS is designed to support 1500 Cisco WLAN controllers and up to 50 APs
B.the Cisco WCS runs on a dedicated network device such as the Cisco 2700 network appliance
C.the Cisco WCS runs on various windows and Linux platforms
D.the Cisco WCS screen displays four main menu sheet tab consisting of Monitor， Configure， Security， and Alam
E.the Cisco WCS uses the SNMP protocol to communicate with the controllers
A.Asynchronous Transfer Mode （ATM）
B.data-link switching （DLSw）
C.Route Processor Redundancy （RPR）
D.Frame Relay （FR）
E.Metro Ethernet
F.Multiprotocol Label Switching （MPLS）
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 address
B.a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）
C.DiffServ uses the DiffServ field in the MAC header to mark frames into behavior
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.FECN
B.LLQ
C.WRED
D.LFI
E.CRTP
F.CBWFQ
A.Cisco CallManager
B.Cisco CallManger Express （CME）
C.Cisco CallManager Gateway （CMG）
D.Cisco CallManager Voice Gateway （CMVG）
E.Media Gateway Control Protocol （MGCP）
A.increases link capacity
B.increases buffer space to accommodate bursts of traffic from delay-sensitive applications
C.provides prioritized forwarding for drop-sensitive applications
D.drop lower priority packets before congestion occurs
E.separates traffic into as many as 64 queues that can be uniquely prioritized
A.RTP multiplexing is used to keep multiple phone conversations separate
B.RTP provides end-to-end delivery services for voice traffic
C.UDP is used to ensure a reliable transmission from sender to receiver
D.RTP is used to provide resource reservation for the voice stream
E.UDP provides multiplexing
Refer to the wxhibit . what QOS model should be used to reserve the requested bandwidth and delay needed for each allowed VOIP call regardless of changing networkconditions？（）
A.best-effort delivery
B.ingress committed rate （ICR）
C.shaping and policing
D.egress committed rate （ECR）
E.integrated Services （IntServ）
F.differentiated services （DiffServ）
A.data plane
B.control plane
C.service plane
D.management plane
E.hyper plane
A.determine a minimum bandwidth guarantee
B.determine interfaces to which to apply policy
C.assign priorities to the class
D.configure access control lists
最新試題
Which two QoS classification and marking statements are true？ （）
What is the term that is used to describe the process of converting a signal from digital to analog？（）
What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？ （）
In the design of a QoS solution， which two factors should be taken into consideration？（）
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？（）
What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）
When QoS levels in the Cisco Wireless Control System （WCS） are entered， which profile names are used to identify the access categories？（）
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？（）
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？（）