CCST - Troubleshooting - Chapter 22

Network engineers primarily rely on __________ to increase resilience by eliminating single points of failure.

• redundancy

• luck

• undersubscription

• manufacturers

What is the time set aside to review a failure, the process used to find it, and the solution?

• Root cause analysis

• Post-mortem

• Troubleshooting period

• Summary review

__________ is how long a network will be unavailable on failure.

• Dwell time

• MTTR

• Failure rate

• MTBF

The __________ troubleshooting method organizes work to split a network into successfully smaller pieces.

• Down-up

• Drill-down

• Half-split

• Top-down

What is the name of the tool most often used by network engineers to perform packet capture?

• Ethereal

• Wireshark

• Tcpdump

• Netcat

__________ is the amount of time the failure exists before being detected.

• Dwell time

• Detection time

• MTTF

• MTBF

When you are designing for redundancy, how much does adding a third path (link) increase the resiliency?

• ~25%

• ~50%

• ~12%

• ~66%

__________ exists when a single resource’s failure can cause some other group of devices to fail.

• Shared sacrifice

• Shared fate

• Single point of failure

• Shoulders problem