Curriculum topic
High Availability
PartialFirst-hop redundancy: how hosts keep a working default gateway when the router behind it fails.
- lesson
- 2 lessons
- quiz
- 2 quizzes
- question
- 2 questions
- lab
- 0 labs
Two of the three: taught, assessed, or practised.
Why this matters
A default gateway is a single point of failure for an entire subnet unless something is done about it.
Learn
Modules covering this topic
2 lessons on this topic, sequenced inside these modules alongside their quizzes and labs.
Practice
Hands-on labs
No dedicated High Availability lab is currently available. It is taught and assessed, but you will not configure it here.
Assess
Graded quizzes
2 graded questions across 2 quizzes, taken inside the modules above. Wrong answers explain the specific misconception behind the option you chose.
Review
Spaced repetition
High Availability is tracked on the review ladder. Once you have answered a question on it, it comes back on a schedule that stretches as you keep getting it right - and resets if you don't. See your review queue.
Certification
Exam objectives this topic covers
- 3.1 Interpret the components of a routing table
- 3.2 Determine how a router makes a forwarding decision by default
- 3.5 Describe the purpose, functions, and concepts of first hop redundancy protocols
- 4.4 Explain the function of SNMP in network operations
- 4.5 Describe the use of syslog features including facilities and levels
- 4.9 Describe the capabilities and function of TFTP/FTP in the network
- 3.1 Explain the purpose of organizational processes and procedures
- 3.3 Explain disaster recovery concepts