Cisco Routing Protocols and Concepts
Course (Latest 2026/ 2027 Update)
questions and answers 100% Correct
[Grade A]
Which conditions cause distant vector routing protocols to send routing table updates?
(Choose three.)
when the hold down timer expires
when a chance occurs in the network topology
when the update timer value expires
when a triggered update is received from another router
when a packet is received that is destined for an unknown network
when there have been no routing table changes for 30 minutes - Correct answer when
a chance occurs in the network topology
when the update timer value expires
when a triggered update is received from another router
What are two characteristics of EIGRP updates? (Choose two.)
include all EIGRP routes
include the full routing table
independent of architecture
,only triggered for route topology changes
broadcast to affected neighbors
bounded to affected next hop routers - Correct answer only triggered for route
topology changes
bounded to affected next hop routers
What feature was added to RIP to help with synchronization errors?
Holddown timer
RIP_JITTER
RIP_DELAY
Jitter Control - Correct answer RIP_JITTER
Which two of the following are timers used for RIP?
Invalid
Refresh
Flush
Deadlink
Hello - Correct answer Invalid
Flush
,Which statements is true concerning the advantages of a distance vector protocol?
periodic updates speed up convergence
convergence times makes routing loops impossible
ease of implementation makes configuration simple
they work well in complex networks
their convergence timers are faster than link state routing protocols - Correct answer
ease of implementation makes configuration simple
Which mechanism can be used to avoid a count to infinity loop
split horizon
route poisoning
holddown timers
triggered updates
split horizon with poison reverse - Correct answer holddown timers
What allows distance vector protocols to avoid routing loops by advertising a metric of
infinity? - Correct answer route poisoning
Which field in the IP header ensures that packets will not loop endlessly on a network?
, CRC
TOS
TTL
Checksum - Correct answer TTL
Time to live (TTL) or hop limit is a mechanism that limits the lifespan or lifetime of data
in a computer or network.
Match the loop preventing mechanisms to the corresponding function.
1. split horizon
2. route poisoning
3.holddown timers
4. triggered updates
A. routes learn through an interface are not advertised out that same interface
B. routes learned through an interface are advertised back out the same interface as
unreachable
C. topology changes are immediately sent to adjacent routers
D. allows time for topology changes to travel through entire network - Correct answer
1-A
2-B
Course (Latest 2026/ 2027 Update)
questions and answers 100% Correct
[Grade A]
Which conditions cause distant vector routing protocols to send routing table updates?
(Choose three.)
when the hold down timer expires
when a chance occurs in the network topology
when the update timer value expires
when a triggered update is received from another router
when a packet is received that is destined for an unknown network
when there have been no routing table changes for 30 minutes - Correct answer when
a chance occurs in the network topology
when the update timer value expires
when a triggered update is received from another router
What are two characteristics of EIGRP updates? (Choose two.)
include all EIGRP routes
include the full routing table
independent of architecture
,only triggered for route topology changes
broadcast to affected neighbors
bounded to affected next hop routers - Correct answer only triggered for route
topology changes
bounded to affected next hop routers
What feature was added to RIP to help with synchronization errors?
Holddown timer
RIP_JITTER
RIP_DELAY
Jitter Control - Correct answer RIP_JITTER
Which two of the following are timers used for RIP?
Invalid
Refresh
Flush
Deadlink
Hello - Correct answer Invalid
Flush
,Which statements is true concerning the advantages of a distance vector protocol?
periodic updates speed up convergence
convergence times makes routing loops impossible
ease of implementation makes configuration simple
they work well in complex networks
their convergence timers are faster than link state routing protocols - Correct answer
ease of implementation makes configuration simple
Which mechanism can be used to avoid a count to infinity loop
split horizon
route poisoning
holddown timers
triggered updates
split horizon with poison reverse - Correct answer holddown timers
What allows distance vector protocols to avoid routing loops by advertising a metric of
infinity? - Correct answer route poisoning
Which field in the IP header ensures that packets will not loop endlessly on a network?
, CRC
TOS
TTL
Checksum - Correct answer TTL
Time to live (TTL) or hop limit is a mechanism that limits the lifespan or lifetime of data
in a computer or network.
Match the loop preventing mechanisms to the corresponding function.
1. split horizon
2. route poisoning
3.holddown timers
4. triggered updates
A. routes learn through an interface are not advertised out that same interface
B. routes learned through an interface are advertised back out the same interface as
unreachable
C. topology changes are immediately sent to adjacent routers
D. allows time for topology changes to travel through entire network - Correct answer
1-A
2-B
