Online Access Free 642-642 Exam Questions

DRAG DROP
Drop

Correct Answer:

Based on the following show output, which statement is true?
WG1S1#sh mls qos interface fa0/1 FastEthernet0/1 trust state: not trusted trust mode: trust cos COS override: dis default COS: 0 pass-through: none trust device: cisco-phone

• A.All incoming DSCP markings are trusted.
• B.A Cisco IP Phone is not connected to the fa0/1 switch port.
• C.DSCP markings from the Cisco IP Phone are trusted.
• D.All incoming CoS markings are trusted.

Traffic classification using NBAR is configured using which IOS command?

• A.router(config)# ip nbar pdlm {pdlm-file}
• B.router(config)# ip nbar port-map {protocol} [tcp|udp] {port-number} {port-number} ....
• C.router(config-cmap)# match protocol {protocol-name}
• D.router(config-if)# ip nbar protocol-discovery

Which command is typically applied to the voice traffic class within a policy-map?

• A.shape peak {bps}
• B.fair-queue
• C.bandwidth {kbps}
• D.compress header ip rtp
• E.random-detect dscp-based
• F.shape average {bps}

Which four of the following bit values are used for bits 5-7 of the DSCP field to select AF PHB? (Choose four.)

• A.100
• B.011
• C.000
• D.010
• E.101
• F.001