多項(xiàng)選擇題Which two pairings match the application with the correct Cos value?()

A.CoS 0 = Best-Effort Data
B.CoS 1 = Best-Effort Data
C.CoS 3 = High Priority
D.CoS 4 = High Priority Data
E.CoS 5 = Voice Bearer
F.CoS 7 = Voice Bearer


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1.多項(xiàng)選擇題Which two options can be used as traffic descriptors when classifying and marking traffic? ()

A.incoming interface
B.Layer 2 differentiated services code point (DSCP)
C.Layer 3 IP precedence
D.outgoing interface

2.單項(xiàng)選擇題

What will the H.323 gateways do when they receive a call request?()

 

A.forward an admission request to the local gatekeeper
B.forward an admission request to the remote gatekeeper
C.send a location request to the remote gateway
D.send a location request to the remote gatekeeper

3.多項(xiàng)選擇題Which two statements about the implementation of WLAN QoS are true?()

A.The 802.11e standard is the IEEE 802.11 OoS WLAN standard.
B.The Wi-Fi Multimedia (WMM) standard decreases the eight priority levels to four access categories.
C.The Wi-Fi Multimedia (WMM) standard is a Wi-Fi Alliance standard that increases the four priority levels to eight access categories.
D.The Wi-Fi Multimedia (WMM) standard is an IEEE standard that increases the four priority levels to eight access categories.
E.Wireless 802.11 deploys Distributed Coordination Function (DCF), carrier sense multiple access with collision detection (CSMA/CD), interframe spacing, and random wait timers to avoid collisions.
F.Wireless OoS designs and implementations commonly use Layer 3 differentiated services code point (DSCP) or Layer 2 802.1 p to ensure priority

4.多項(xiàng)選擇題What are three traffic descriptors that are used by the classification process to categorize packets that require special OoS handling?()

A.Resource Reservation Protocol (RSVP)
B.IP precedence
C.traffic shaping
D.trust boundaries
E.DSCP
F.application

5.單項(xiàng)選擇題What management tool could be used to provide centralized configuration, monitoring, and management in a network built on Cisco wireless LAN controllers and Lightweight APs? ()

A.CiscoWorks Wireless LAN Solution Engine (WLSE)
B.CiscoWorks Wireless LAN Solution Engine (WLSE) Express
C.Cisco Wireless Control System (WCS)
D.Wireless Domain Services (WDS)
E.WLAN Controllers (WLC)

6.多項(xiàng)選擇題What are two reasons for packet loss on a VoIP connection?()

A.serialization delay
B.overrun
C.full buffers and queues
D.propagation delay
E.shaping delay
F.TCP header errors

7.單項(xiàng)選擇題Which statement is true about the components of a queuing mechanism?()

A.Each subinterface has its own hardware queue and can experience congestion just like its main interface
B.Hardware queuing is only used if the software queues are experiencing congestion.
C.Hardware queues and software queues are not used concurrently.
D.The hardware queuing system always uses the FIFO queuing mechanism.

8.多項(xiàng)選擇題Which two statements are true about the protocols that are used for transmitting voice traffic?()

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 of multiple phone conversations.

9.多項(xiàng)選擇題What are two components of the OoS Integrated Services (IntServ) model? ()

A.link efficiency
B.admission control
C.classification and marking
D.shaping and policing
E.congestion avoidance using the RTP protocol
F.resource reservation using the RSVP protocol

10.多項(xiàng)選擇題Cisco provides two enhancements to 802.11 security which protect a WEP key from exploits. Which two technologies provide these security enhancements? ()

A.802.1X
B.Cisco Temporal Key Integrity Protocol (CKIP)
C.Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST)
D.Cisco Message Integrity Check (CMIC)
E.One-Time Passwords (OTP)
F.Advanced Encryption Standard (AES)

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When QoS levels in the Cisco Wireless Control System (WCS) are entered, which profile names are used to identify the access categories?()

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

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