多項選擇題Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks? ()

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.


您可能感興趣的試卷

你可能感興趣的試題

2.多項選擇題Which three methods would help prevent critical network-traffic packet loss on high speed serial interfaces? ()

A. policy routing
B. increase link capacity
C. WRED
D. CBWFQ
E. LFI
F. WFQ

3.多項選擇題What three statements are true about the various deployments of the 802.1x Extensible Authentication Protocol (EAP)? ()

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·

4.多項選擇題Which three statements about end-to-end delay are true? ()

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.

5.多項選擇題Which two statements are true about the implementation of QoS? ()

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.

最新試題

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?()

題型:多項選擇題

Which two QoS classification and marking statements are true? ()

題型:多項選擇題

End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p?()

題型:單項選擇題

When Cisco SDM is used to generate QoS policy, various QoS classes will be created and assigned a percentage of the interface bandwidth. Which three statements indicate the default bandwidth values that are assigned by SDM for outgoing traffic on a WAN interface? ()

題型:多項選擇題

Which three practices are important to the implementation of a DiffServ QoS architecture?()

題型:多項選擇題

Which two functions can be provided by an Integrated Services Router (ISR) in a VoIP network?()

題型:多項選擇題

What are three Cisco Unified CallManager features? ()

題型:多項選擇題

Which statement is true about the Call Admission Control (CAC) feature in VoIP networks?()

題型:單項選擇題

What is the term that is used to describe the process of converting a signal from digital to analog?()

題型:單項選擇題

Which option correctly identifies the four main menus of a Cisco Wireless Control System (WCS)? ()

題型:單項選擇題