While is the simplest method for detecting invalid or unauthorized changes?

While troubleshooting network issues, which two of these can a ping test be used to determine?

You have been asked to configure an Ethernet flow point on a Cisco ASR 9000. The encapsulation for the Ethernet flow point should include VLANs 20, 30 and 40 to 50. Pop the VLAN tag with the symmetric option. Add an output service policy. Add an Ethernet egress filter in strict mode. Why are these requirements not possible?

At which SONET layer would you expect to see B3 errors?

Which two-stage configuration process is correct in Cisco IOS XR Software?

Information from which three sources can be used to identify proactive network maintenance activities (Choose three)

What would this script provide?

#!/bin/bash
For host in 192.168.1.1 192.168.1.2 192.168.1.3
Do telnet $host echo "|s *. txt" echo "logout" done

We have just completed periodic trend analysis of the network traffic. The trend is within expectations and within current network capacity. What should be the next step?

According to the ITIL v3 framework, how should special types of incidents, such as redundant power supply failure, be handled?

According to the ITIL v3 framework, which two options are the goals of configuration managements? (Choose two)