QoS (Quality of Service) Quiz (Online)

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Which QoS parameters are required to transfers credential file from one source to a destination?

Best Effort

Bandwidth and Data loss

Latency

Jitter

Which of the following are examples of metrics for QoS?

AIS, Latency, NEXT

SNR, Delay, WRED

Jitter, Delay, Packet-loss

Latency, WRED, Attenuation

Which of the following is NOT used for Quality of Service?

DSCP bits

802.1P

MPLS EXP bits

802.1X

In which byte of an IP packet can traffic be marked?

The QoS byte

The CoS byte

The ToS byte

The DSCP byte

The QoS requirements on the CE and PE router differ depending on which factor?

Whether or not the service provider is using an MPLS core

Whether or not the PE router is managed by the service provider

Whether or not the CE router is managed by the service provider

The SLAs offered by the service provider

Which one is not a QoS requirement for voice?

Bandwidth 80kbps per call minimum for all codecs

Loss less than 1 percent

Jitter less than 30 ms

Latency less that 150 ms

Quality of Service can alleviate which problems?

Insufficient Bandwidth

Interface buffer overruns

Link Instability

Dropped voice calls during periods of high network utilisation

Which statement about QoS default behaviour is true?

Packets are classified internally with an environment

Packets that arrive with a tag are untagged at the edge of an administrative domain

Ports are untrusted by default

VoIP traffic is passed without being tagged

What happens if conflicting QoS policies are deployed to the same Router?

If multiple policies apply, the more specific QoS policy takes precedence

If multiple policies apply, the first applied QoS policy takes precedence

If multiple policies apply, no QoS policy will take precedence

None

Which of the following QOS functions are performed on the incoming interface?

Packet Classification

Packet Scheduling

Congestion Management

Buffer Management