多項(xiàng)選擇題What are two step needed to define a QoS policy for a traffic class?()

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


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1.多項(xiàng)選擇題Which three statements about classification marking of traffic at Layer 2 are true? ()

A.a Frame Relay header includes a 1-bit discard eligible (DE) bit to provide the class of service (CoS)
B.an ATM header includes a 1-bit DE field to provide the CoS
C.an MPLS EXP field is inserted in the Layer 3 IP precedence field to identify the CoS
D.the CoS field only exists inside Ethernet frames when 802.1Q or Inter-Switch Link (ISL) trunking is used
E.in the IEEE 802.1p standard, three bits are used to identify the user priority bits for the CoS
F.in the IEEE 802.1q standard, six bits are used to identify the user priority bits for the CoS

3.單項(xiàng)選擇題

Refer to the exhibit. What mechanism should be used to increase the bandwidth availability and optimize the link usage throughout the network for voice traffic?()

A.TCP header compression on router R1
B.TCP header compression on router R2
C.RTP header compression on router R1
D.RTP header compression on router R2
E.payload header compression on router R1
F.payload header compression on router R2

4.多項(xiàng)選擇題AutoQoS Discovery has run on the Acme Entertainment Company’s network for several days and has produced the suggested policy shown in the exhibit. Acme wishes to 1) allow more bandwidth for browser-type traffic because it is the job of many of their employees to be browsing the web as a part of their job, and 2) to allow greater bandwidth for file transfers because they expect an upcoming surge in movie uploads and downloads. Which two statements would you replace to best accomplish those goals without sacrificing voice quality? ()

A.in class class-default, replace fair-queue with bandwidth remaining percent 50 
B.in class autoqos-transactional-Fa0/1, replace bandwidth remaining percent 40 with bandwidth remaining percent 20 
C.in class autoqos-transactional-Fa0/1, replace bandwidth remaining percent 40 with bandwidth remaining percent 30 
D.in class autoqos-Bulkl-Fa0/1, replace bandwidth remaining percent 19 with bandwidth remaining percent 25 
E.in class autoqos-Scavenger-Fa0/1, replace bandwidth remaining percent 1 with bandwidth remaining percent 10 
F.in class autoqos-Signaling-Fa0/1, replace bandwidth remaining percent 4 with bandwidth remaining percent 1 

5.多項(xiàng)選擇題What are three considerations when choosing the QoS model to deploy in a network?()

A.the routing protocols being utilized in the network
B.the applications utilizing the network
C.the traffic destinations
D.network addressing scheme
E.cost of implementation
F.the amount of the control needed of the resources

6.多項(xiàng)選擇題

Refer to the exhibit. Both routers have been configured as VoIP gateways. They must also support traditional telephony devices to connect to analog telephones. Which two configuration changes would correctly support the voice requirements?()

A.on each router, under the dial-peer voice 1 pots configuration, add the port fa0/0 command
B.on each router, under the dial-peer voice 1 pots configuration, add the port 1/0/0 command
C.on each router, configure dial-peer voice 1 as a voip connection and configure dial-peer voice 2 as a pots connection
D.under the dial-peer voice 1 pots configuration, change the destination pattern of 1111 to 2222 on the R1 router, and 2222 to 1111 on the R2 router
E.under the dial-peer voice 2 voip configuration, change the destination pattern of 1111 to 2222 on the R1 router, and 2222 to 1111 on the R2 router
F.under the dial-peer voice 2 voip configuration, change the destination target address of 10.2.2.2 to 10.1.1.1 on the R1 router, and the destination target address of  10.1.1.1 to 10.2.2.2 on the R2 router

7.多項(xiàng)選擇題Cisco AutoQoS takes the interface type and bandwidth into consideration when configuring which three QoS features?()

A.voice compression methodology
B.LLQ
C.CRTP
D.routing protocol
E.LFI
F.trust boundary

8.單項(xiàng)選擇題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?()

A.the voice packet will be transmitted first, followed by the FTP packet in its entirety
B.the voice packet will be transmitted first, followed by the fragmented FTP packet
C.the FTP packet will be fragmented and the voice packet will be interleaved
D.the FTP packet will be transmitted first in its entirety, follow by the voice packet

9.單項(xiàng)選擇題What accurately describes the usage of a Cisco AutoQoS command?()

A.on Catalyst switches, the show auto discovery qos command is used to display the data collected during the Auto-Discovery phase
B.on Catalyst switches, the show auto qos command is used to display packet statistics of all classes that are configured for all service policies
C.on Cisco routers, the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuing
D.on Cisco routers, the show auto qos command is used to display the AutoQoS interface templates, policy maps, class maps, and ACLs

10.單項(xiàng)選擇題What type of services are provided by the Cisco IOS gateways in a VoIP network with Cisco CallManager functionality? ()

A.Cisco IOS gateways provide services such as address translation and network access control for the devices on the networl
B.Cisco IOS gateways provide services such as bandwidth management and accounting
C.Cisco IOS gateways provide media termination and signal translation between the public switched telephone network (PSTN) and IP networks
D.Cisco IOS gateways provide zone management for all registered endpoints in the network

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