CCNA 3 v7 Modules 9–12
Optimize, Monitor &
Troubleshoot Networks
2026 | Questions, Answers
& Rationales
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, A network engineer performs a ping test and receives a latency
value that shows the time it takes for a packet to travel
from a source to a destination device and return. Which
term describes the value?
What role do network devices play in the IntServ Qos Network devices ensure that resources are available before traffic is allowed to
model? be sent by a host through the network
Which device would be classified as a trusted endpoint? IP Phone
What is the benefit of deploying Layer 3 QoS marking Layer 3 marking can carry the QoS information end-to-end
across an enterprise network?
What is the function of a QoS trust boundary? A trust boundary identifies which devices trust the marking on packets that enter a
network
What are two approaches to prevent packet loss due to Drop lower-priority packets
congestion on an interface? (1)
What are two approaches to prevent packet loss due to Increase link capacity
congestion on an interface? (2)
What configuration scenario would offer the most SNMPv3 configured with the auth security level
protection to SNMP get and set messages?
Refer to the exhibit. The network administrator enters 192.168.11.252
these commands into the R1 router: (tftp application)
R1# copy running-config tftpAddress or name of remote
host [ ]?
When the router prompts for an address or remote host
name, what IP address should the administrator enter at
the prompt?
The command ntp server 10.1.1.1 is issued on a router. What synchronizes the system clock with the time source with IP address 10.1.1.1
impact does this command have?
As the network administrator you have been asked to grouping multiple physical ports to increase bandwidth between two switches
implement EtherChannel on the corporate network. What
does this configuration consist of?
Optimize, Monitor &
Troubleshoot Networks
2026 | Questions, Answers
& Rationales
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, A network engineer performs a ping test and receives a latency
value that shows the time it takes for a packet to travel
from a source to a destination device and return. Which
term describes the value?
What role do network devices play in the IntServ Qos Network devices ensure that resources are available before traffic is allowed to
model? be sent by a host through the network
Which device would be classified as a trusted endpoint? IP Phone
What is the benefit of deploying Layer 3 QoS marking Layer 3 marking can carry the QoS information end-to-end
across an enterprise network?
What is the function of a QoS trust boundary? A trust boundary identifies which devices trust the marking on packets that enter a
network
What are two approaches to prevent packet loss due to Drop lower-priority packets
congestion on an interface? (1)
What are two approaches to prevent packet loss due to Increase link capacity
congestion on an interface? (2)
What configuration scenario would offer the most SNMPv3 configured with the auth security level
protection to SNMP get and set messages?
Refer to the exhibit. The network administrator enters 192.168.11.252
these commands into the R1 router: (tftp application)
R1# copy running-config tftpAddress or name of remote
host [ ]?
When the router prompts for an address or remote host
name, what IP address should the administrator enter at
the prompt?
The command ntp server 10.1.1.1 is issued on a router. What synchronizes the system clock with the time source with IP address 10.1.1.1
impact does this command have?
As the network administrator you have been asked to grouping multiple physical ports to increase bandwidth between two switches
implement EtherChannel on the corporate network. What
does this configuration consist of?
