EIGRP

Which EIGRP feature helps minimize the CPU load by sending partial updates only when a topology change occurs?
Hello packets
Hold timers
Reliable Transport Protocol (RTP)
Split horizon
What is the default maximum hop count for an EIGRP route?
15
100
255
Unlimited
How does EIGRP determine the best path to a destination?
By using hop count
By using bandwidth and delay
By using cost
By using AS path
Which command would you use to view the EIGRP neighbor table?
Show ip eigrp interfaces
Show ip eigrp neighbors
Show ip eigrp topology
Show ip eigrp traffic
What is the purpose of the EIGRP “stuck in active” (SIA) state?
To indicate a router is unable to communicate with its neighbors
To indicate a route is actively being recalculated
To show that a route is being advertised
To show that a route is unreachable
In EIGRP, what is the purpose of the “feasible successor”?
It is the best path to the destination
It is an alternate path to the destination
It is the path currently being used
It is the path with the highest cost
Which command is used to configure EIGRP on a router?
Router eigrp 1
Router eigrp 200
Router eigrp 2
Router eigrp 100
What does the “variance” command do in EIGRP?
It sets the delay for routes
It changes the load balancing for routes
It allows unequal-cost load balancing
It limits the number of hops
Which of the following is a condition for a route to be a feasible successor in EIGRP?
The Advertised Distance (AD) must be less than the Feasible Distance (FD)
The Advertised Distance (AD) must be equal to the Feasible Distance (FD)
The Feasible Distance (FD) must be less than the Reported Distance (RD)
The Reported Distance (RD) must be less than the Feasible Distance (FD)
What is the default EIGRP hello interval on a high-speed link (e.g., Ethernet)?
10 seconds
15 seconds
5 seconds
30 seconds
Which EIGRP metric component represents the sum of delays along the path to a destination?
Bandwidth
Load
Reliability
Delay
What is the EIGRP administrative distance for an internal route?
100
90
110
120
Which command displays EIGRP routes that are in the topology table but not in the routing table?
Show ip eigrp interfaces
Show ip eigrp topology
Show ip eigrp traffic
Show ip eigrp neighbors
How does EIGRP handle the routing loop prevention?
By using hop count limits
By using split horizon and route poisoning
By using TTL values
By using hold-down timers
What is the effect of the "passive-interface" command in EIGRP?
It prevents EIGRP updates from being sent out of the interface
It shuts down the interface
It removes the interface from the EIGRP process
It changes the metric calculation for the interface
Which EIGRP packet type is used to discover and maintain neighbor relationships?
Update
Query
Hello
Acknowledgment
What is the purpose of the EIGRP “query” packet?
To discover neighbors
To request routing information
To acknowledge receipt of updates
To check for dead routes
Which timer in EIGRP controls the time between the receipt of a hello packet and the declaration that the neighbor is down?
Hello timer
Hold timer
Active timer
Dead timer
What is the significance of the “K values” in EIGRP?
They determine the number of equal-cost paths
They influence the metric calculation
They specify the hold time
They set the hello interval
Which command would you use to verify the EIGRP AS number configured on a router?
Show ip protocols
Show ip eigrp interfaces
Show ip eigrp topology
Show ip eigrp neighbors
How does EIGRP ensure loop-free paths?
By using a maximum hop count
By using the DUAL algorithm
By using TTL values
By using hold-down timers
Which EIGRP packet type is used to send routing updates?
Hello
Acknowledgment
Query
Update
What is the primary function of the EIGRP Reliable Transport Protocol (RTP)?
To establish neighbor relationships
To provide reliable delivery of EIGRP packets
To calculate the best path to a destination
To determine EIGRP metric values
How can you verify if a router is actively seeking a new path to a destination in EIGRP?
By checking the EIGRP neighbor table
By checking the routing table
By using the show ip eigrp topology command
By using the debug eigrp packets command
What is the effect of configuring the “bandwidth” command on an interface used by EIGRP?
It changes the interface speed
It influences the EIGRP metric calculation
It sets the maximum number of neighbors
It changes the hello interval
What is the default value of the “K1” metric in EIGRP?
0
2
1
3
Which command displays detailed information about EIGRP interfaces?
Show ip eigrp neighbors
Show ip eigrp traffic
Show ip eigrp topology
Show ip eigrp interfaces detail
Which of the following describes the EIGRP route filtering process?
It can only be applied to incoming routes
It uses ACLs to filter routes
It can use distribute lists, prefix lists, and route maps
It is not supported in EIGRP
What happens when the “auto-summary” feature is enabled in EIGRP?
All subnet masks are summarized to their classful boundaries
All routes are summarized to their classless boundaries
Summarization is disabled
Subnet masks are ignored
Which EIGRP packet type is used to acknowledge the receipt of an update packet?
Hello
Query
Acknowledgment
Reply
What is the maximum metric value for an EIGRP route?
16,777,215
4,294,967,295
1,000,000
2,147,483,647
How does EIGRP perform unequal-cost load balancing?
By using the variance command
By using the delay command
By using the metric command
By using the offset-list command
Which command can you use to display the EIGRP metrics for a route?
Show ip route
Show ip eigrp topology
Show ip eigrp traffic
Show ip eigrp interfaces
What is the primary benefit of EIGRP’s use of diffusing update algorithm (DUAL)?
It reduces the number of routes in the routing table
It minimizes the convergence time
It simplifies the routing table
It increases the number of equal-cost paths
Which command would you use to display EIGRP traffic statistics?
Show ip eigrp interfaces
Show ip eigrp traffic
Show ip eigrp neighbors
Show ip eigrp topology
What is the effect of the “no auto-summary” command in EIGRP?
It disables automatic summarization of routes
It enables automatic summarization of routes
It changes the summarization boundary
It resets the EIGRP process
Which command would you use to verify the EIGRP authentication configuration on an interface?
Show ip eigrp interfaces
Show ip eigrp neighbors
Show ip eigrp topology
Show ip eigrp traffic
Which protocol does EIGRP use for transport of its packets?
TCP
UDP
IP
RTP
What does the “hold time” in an EIGRP hello packet specify?
The interval between hello packets
The time a router should wait before declaring a neighbor down
The time a router should wait before sending the next update
The maximum time a route can remain in the routing table
How can you prevent EIGRP from sending hello packets on an interface?
By using the bandwidth command
By using the passive-interface command
By using the delay command
By using the metric command
What is the EIGRP composite metric formula?
Bandwidth + Delay
Bandwidth * Delay
Bandwidth / Delay
(Bandwidth + Delay) * Load / Reliability
What happens if two EIGRP routes have the same feasible distance?
The route with the lower advertised distance is chosen
Both routes are used for load balancing
The route with the higher reliability is chosen
The route with the lower bandwidth is chosen
Which feature in EIGRP provides for faster convergence after a topology change?
Split horizon
Feasible successor
Active state
Passive state
What does the “EIGRP stub” feature do?
It limits the number of neighbors
It reduces the number of EIGRP queries sent to the router
It prevents the router from sending EIGRP updates
It configures the router as a backup
Which command allows you to see detailed information about EIGRP neighbors, including uptime and the number of sent/received packets?
Show ip eigrp topology
Show ip eigrp traffic
Show ip eigrp interfaces
Show ip eigrp neighbors detail
In EIGRP, what is the purpose of the “network” command?
To advertise networks
To summarize routes
To configure interfaces
To set the hello interval
What is the default value for the “hold time” in EIGRP?
5 seconds
10 seconds
15 seconds
15 seconds (on high-speed links) and 180 seconds (on low-speed links)
How does EIGRP handle packet loss?
It ignores lost packets
It uses RTP to retransmit lost packets
It reduces the hello interval
It increases the hold time
Which EIGRP command allows you to change the administrative distance of EIGRP routes?
Distance eigrp
Ip eigrp distance
Eigrp distance
Router eigrp distance
How can you configure EIGRP to use a specific interface for routing updates?
By using the passive-interface command
By using the bandwidth command on the interface
By using the ip address command on the interface
By using the network command under the EIGRP process
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