Cisco-ONT - Optimizing Converged Cisco Networks Set 3

1.

You have just created a new VLAN on your network. What is one step that you should include in your VLAN based implementation and verification plan?

QoS preclassification is only supported on generic routing encapsulation (GRE) and IPsec VPNs. QoS preclassification is not required in Layer 2 Tunneling Protocol (L2TP), Layer 2 Forwarding (L2F), andPoint-to-Point Tunneling Protocol (PPTP) VPNs. QoS preclassification is supported on IPsec AH VPNs, but not on IPsec ESP VPNs. The QoS-for-VPNs feature (QoS preclassification) is designed for VPN transport interfaces. With IPsec tunnel mode, the type of service (ToS) byte value is copied automatically from the original IPheader th the tunnel header.

2.

You have just created a new VLAN on your network for inter-VLAN routing. What is one step that you should include in your VLAN-based implementation and verification plan?

The qos pre-classify command is entered in global configuration mode. The qos pre-classify command is entered in priveleged EXEC mode. The qos pre-classify command is not necessary when the classificaiton policy matches on the ToS byte. The qos pre-classify command cannot be applied to an IPsec GRE tunnel.

3.

Under what circumstances should an administrator prefer local VLANs over end-to-end VLANs?

WLAN controllers WLAN Solution Engine (WLSE) Cisco Wireless Control System (WCS) Cisco Wireless Location Appliance lightweight access point (AP)

4.

When you issue a command show port 3/1 on an Ethernet port, you observe the 'Giants' column has a non-zero entry. What could cause of this?

On Catalyst switches, the show auto discovery qos command is used to display the data collected during the Auto-Discovery phase. On Catalyst switches, the show auto qos command is used to display packet statistics of all classes that areconfigured for all service policies. On Cisco routers, the show mls qos maps command is used to verify the CoS-to-DSCP maps for egresspacket queuing. On Cisco routers, the show auto qos command is used to display the AutoQoS interface templates, policymaps, class maps, and ACLs.

5.

You want to configure a switched internetwork with multiple VLANs as shown above. Which of the following commands should you issue on SwitchA for the port connected to SwitchB?

FIFO queuing, which provides a means to hold packets while they are waiting to exit an interface Priority queuing, which ensures a fixed amount of bandwidth Custom queuing (CQ), which provides a queuing tool that services all queues, even during times ofcongestion Bandwidth queuing, which ensures a minimum amount of bandwidth Weighted fair queuing (WFQ), which classifies packets based on flows

6.

On a multilayer Catalyst switch, which interface command is used to convert a Layer 3 interface to a Layer 2 interface?

WMM using DCF WMM using EDCAF 802.1e using DCF 802.1e using EDCAF

7.

Which statement is correct about 802.1Q trunking?

the AP only the Wireless LAN Controller only between the AT and Wireless LAN Conroller via LWAPP between the AP and Catalyst switch via 802.1p the Catalyst switch only

8.

Which switch command enables a trunking protocol that appends a four byte CRC to the packet?

Large files are being downloaded over the WAN network. IP phone traffic is not being classified correctly. More bandwidth is required for the office LAN. Call Admission Control has not been implemented. Employees are watching videos over the Internet.

9.

While using a packet analyzer, you notice four additional bytes being added to the packets in the Company network. Which protocol inserts a four byte tag into the Ethernet frame and recalculates CRC value?

end-to-end delay interference from bulk data traffic processing delays serialization delays jitter

10.

Which statement is correct about 802.1Q trunking?

consists of a priority queue with multiple weighted fair queues for data consists of multiple priority queues with weighted round-robin queues for data consists of a class-based weighted fair queuing with a priority queue for real-time traffic such as voice consists of multiple priority queues with FIFO queuing for voice consists of multiple FIFO priority queues with round robin queuing for data

Cisco-ONT - Optimizing Converged Cisco Networks Set 3

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Cisco-ONT - Optimizing Converged Cisco Networks Set 3

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