Exam (elaborations)
NSE4 - Infrastructure Exam With Verified Solution
- Course
- Institution
NSE4 - Infrastructure Exam With Verified Solution ...
[Show more]
Content preview
NSE4 - Infrastructure ExamWith Verified Solution
What is a static route? - Answer A static route is configured manually by an admin, it
tells the fortigate to route packets through a specific interface towards a specifc router.
What is a dynamic route? - Answer Instead of manually creating every route, paths are
automatically discovered. This is much more useful for larger network where creating
static routes would be inefficient.
Fortigate supports:
RIP (routing information protocol)
OSPF (open shortest path first)
BGP (border gateway protocol)
IS-IS (intermediate system to intermediate system)
What is a policy-based route? - Answer it is much more flexible than static-routes, has
the granular ability over the protocols, source address, source ports and destination
ports.
policy-based routes also have precedence over the regular routing table.
What is internet services routing? - Answer routes well-known internet services through
specific WAN interfaces.
What does the routing table monitor do? - Answer shoes the active routes
What is distance used for in routing? - Answer Distance ranks routes from most
preferred (low distance) to least preferred (high distance)
What is metrics used for in routing? - Answer used in dynamic routing to identify the
best route to a destination. If multiple dynamic routes have the same distance, then the
metric is used to break the tie
What is priority used for in routing? - Answer used in static routing to determine the best
route to a destination, when the distance is the same.
The lowest priority is considered the best path.
Which static route attribute does not appear on the GUI routing monitor?
A.) Distance
B.) Priority - Answer B.) Priority
, What is ECMP routing? - Answer Equal cost multi-path routing occurs when two or more
routes of the same type and to the same destination share the same values for all
attributes.
ECMP will load balance traffic accross all routes.
What are the different ECMP load-balancing methods? - Answer - Source IP (Default) -
sessions from the same source IP address uses the same route
- Source-destination IP - sessions with the same source and destination IP use the same
route
- Weighted - sessions are distributed based on route, or interface weights
- Usage (spillover) - one route is used until the volume threshold is reached, then the
next route is used.
What is RPF? - Answer reverse path forwarding, protects against IP spoofing attacks.
the source ip address is checked against the routing table for a return path.
-loose
-strict
What is strict check? - Answer checks that the best route back to the source uses the
incoming interface
what is loose check? - Answer checks only for the existence of at least one active route
back to the source using the incoming interface (default)
Which route lookup scenario will satisfy the RPF check for a packet?
A.) routing table has an active route for the destination IP of the packet.
B.) routing table has an active route for the source IP of the packet - Answer B.) routing
table has an active route for the source IP of the packet.
What is SD-WAN? - Answer it is a virtual interface consisting of a group of member
interfaces that can be connected to different link types
It allows effective WAN usage with various load balancing algorithms.
What does link health monitor do? - Answer detects when a router along the path is
stopped or degraded.
Which link attribute is used in SD-WAN link quality measurements?
A. Cost
B. Latency - Answer B. Latency
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Flat. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now