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Cisco Quality of Service (QoS) Sample Questions:

1. When LLQ is being configured, which IOS command is used to limit the traffic rate on the priority queue even when the other class queues are not congested?

A) hold-queue
B) queue-limit
C) priority
D) police
E) bandwidth

2. Which command is needed to correct the following configurations in order to enable ppp multilink
LFI on the s0/0 interface?
interface Serial0/0
ip address 10.1.1.1 255.255.255.0
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 2001100114
!
interface Multilink2001100114
bandwidth 384
ip address 10.1.1.1 255.255.255.0
service-policy output AutoQoS-Policy-UnTrust
ppp multilink
ppp multilink fragment-delay 10
ppp multilink interleave

A) the ppp multilink load-threshold command on the s0/0 interface
B) the no ip address command on the s0/0 interface
C) the ppp multilink load-threshold command on the Multilink2001100114 interface
D) the multilink-group 2001100114 command on the Multilink2001100114 interface
E) the ppp multilink interleave command on the s0/0 interface

3. To determine the bandwidth requirement for each VoIP call, not including Layer 2 overhead, how much bandwidth per call should be added to account for the voice signaling traffic?

A) 480 bps
B) 20 bps
C) 40 bps
D) 240 bps
E) 150 bps
F) 640 bps

4. Refer to the exhibit. QPPB is being used by the service provider (AS30). The table-map and route-map called "important" are implemented on router POP A.
The command bgp-policy destination ip-prec-map is applied to the interface between POP A in AS30 and NAP (AS40).
Which QoS action would have to be applied on POP B in AS30 to ensure that the traffic from the NAP (AS40) to the customer (AS20) will be marked with an IP precedence of flash?

A) Traffic from AS20 must have the extended community attribute set to10:50 in a route-map, and send-community extended (or send-community both) must be specified.
B) Traffic from AS20 must have the community attribute set to10:50 in a route-map, and send-community must be specified.
C) Traffic from AS20 must be automatically marked via an inbound QoS map on POP B, resulting in the community attribute set to10:50.
D) No actions are needed. Traffic must be marked in AS20 by the customer as10:50 before it arrives at the service provider.

5. SIMULATION - LAB

A) Please click console

Solutions: