5 NTP and Quality of Service Online Quiz Questions

Configure the NTP server, and rely on NTP to set the device's time zone.

Configure the NTP server, and set the device's time zone separately.

Set the time zone on the NTP server; the client will inherit it.

Do not configure a time zone if the device uses NTP.

Configure only the preferred server because NTP cannot use additional servers.

Configure multiple servers, but mark every server as preferred.

Configure one server as preferred and add another server as an alternative.

Configure an alternative server only after synchronization with the preferred server fails.

Increase the link's available bandwidth by assigning more traffic to a priority queue.

Manage how traffic is treated during congestion, without expecting QoS to create bandwidth.

Prevent congestion by marking all packets with the same DSCP value.

Use QoS to guarantee that every traffic class can transmit at its full requested rate.

Classify and, when appropriate, mark traffic at a trusted ingress boundary rather than blindly trusting untrusted markings.

Accept all incoming DSCP markings, then remark packets only after they leave the network.

Remove markings at every trusted edge and classify packets only at the congested output.

Trust markings from untrusted devices if the output interface has a QoS policy.

Attach the queue policy to the inbound interface where traffic first enters the device, regardless of where congestion occurs.

Queue traffic on the least-congested interface so the policy can act before packets reach the bottleneck.

Queue and schedule traffic on the output interface where congestion is expected.

Apply queuing only on the source host, since the network output interface cannot manage congestion.

True

False

Assume the policy is working because it is configured, and inspect only the NTP associations.

Check for matching traffic, confirm the classification, and verify the policy attachment and direction.

Increase the priority percentage until the counters begin to increase.

Move the policy to an inbound interface without checking where the congestion occurs.

Keep the priority class limited to authorized, bounded delay-sensitive traffic so other classes are not starved.

Add all traffic to the priority class so it can avoid waiting behind other packets.

Give the priority class all available bandwidth whenever any matching packet arrives.

Remove the default class so the priority queue can serve traffic without competition.

It prevents the devices from producing logs.

It helps correlate logs and troubleshoot events.

It automatically assigns the same time zone to every device.

It guarantees that network events cannot be misdiagnosed.

Use show ntp status to check whether the device is synchronized.

Use show ntp associations to inspect its NTP associations.

Change the QoS policy's DSCP classification.

Check whether routing to the server is working.

Check whether the NTP server itself has a valid time source.

Classify packets by a characteristic such as DSCP, an access-control list, or an application.

Mark packets with a QoS value when appropriate.

Queue and schedule traffic at the congested output interface.

Assume that every packet's existing marking is correct without checking it.

Verify policy counters and observed traffic behavior.

True

False

True

False