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Cisco Quality of Service (QoS) Sample Questions:

1. Which element is mandatory for QoS policy propagation through BGP operations?

A) QoS pre-classify
B) NBAR
C) policy-based routing
D) MPLS
E) CEF
F) MQC

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

3. Switch port fa0/2 has been configured to connect an IP phone with an attached PC. Given the set of commands shown below, where does the trust boundary lie?
interface fa0/2 mls qos trust cos mls qos trust device cisco-phone switchport voice vlan 112

A) between the IP phone and the switch
B) between the PC port and the LAN port on the IP phone
C) between the access layer switch and the distribution layer switch
D) between the IP phone and the PC

4. Refer to the exhibit. A typical configuration involving an IP phone with an attached PC is shown. According to QoS recommendations, at which demarcation line (shown as dotted lines) would the trust boundary normally exist?

A) D
B) A
C) C
D) B

5. A Frame Relay interface has been configured for adaptive shaping with a minimum rate of 15 kbps. The current maximum transmit rate is 56 kbps.
If three FECNs are received over the next 4 seconds, what will be the maximum transmit rate after the last FECN has been received?

A) 15 kbps
B) 28 kbps
C) 56 kbps
D) 37 kbps
E) 7 kbps
F) 10 kbps

Solutions: