IT 341 QUIZ 3 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
A network administrator is configuring port security on a Cisco switch. The company security policy
specifies that when a violation occurs, packets with unknown source addresses should be dropped
and no notification should be sent. Which violation mode should be configured on the interfaces? -
Answers Protect
What is the bandwidth utilization efficiency of full-duplex Ethernet? - Answers 100%
What does a switch use to locate and load the IOS image? - Answers BOOT environment variable
Refer to the exhibit. The Fa0/2 interface on switch S1 has been configured with the switchport port-
security mac-address 0023.189d.6456 command and a workstation has been connected. What could
be the reason that the Fa0/2 interface is shut down? - Answers The MAC address of PC1 that
connects to the Fa0/2 interface is not the configured MAC address.
What is the first action in the boot sequence when a switch is powered on? - Answers load a power-
on self-test program
Which switch component reduces the amount of packet handling time inside the switch? - Answers
ASIC
What is the result of issuing the no switchport port-security mac-address sticky command on an
interface with port security configured? - Answers The sticky secure MAC addresses remain part of
the address table but are removed from the running configuration.
What information is added to the switch table from incoming frames? - Answers source MAC address
and incoming port number
After which step of the switch bootup sequence is the boot loader executed? - Answers after POST
execution
A network administrator plugs a new PC into a switch port. The LED for that port changes to solid
green. What statement best describes the current status of the port? - Answers The port is
operational and ready to transmit packets.
What security benefit is gained from enabling BPDU guard on PortFast enabled interfaces? - Answers
Preventing rogue switches from being added to the network
If one end of an Ethernet connection is configured for full duplex and the other end of the connection
is configured for half duplex, where would late collisions be observed? - Answers on the half-duplex
end of the connection
Which impact does adding a Layer 2 switch have on a network? - Answers an increase in the size of
the broadcast domain
What is the significant difference between a hub and a Layer 2 LAN switch? - Answers A hub extends
a collision domain, and a switch divides collision domains.
An attacker has bypassed physical security and was able to connect a laptop to an Ethernet interface
on a switch. If all the switch ports are configured with port security and the violation mode is set to
factory-default, which action is taken against the attacker? - Answers Packets with unknown source
addresses are dropped and the interface becomes error-disabled and turns off the port LED.
An IT security specialist enables port security on a switch port of a Cisco switch. What is the default
violation mode in use until the switch port is configured to use a different violation mode? - Answers
Shutdown
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex
operation. Which statement accurately reflects the operation of this link? - Answers No collisions will
occur on this link.
Which protocol adds security to remote connections? - Answers SSH
What is a possible cause of runt Ethernet frames when a switch is being used? - Answers
Malfunctioning NIC
Refer to the exhibit. How many broadcast domains are displayed? - Answers 8
A network administrator is configuring port security on a Cisco switch. The company security policy
specifies that when a violation occurs, packets with unknown source addresses should be dropped
and no notification should be sent. Which violation mode should be configured on the interfaces? -
Answers Protect
What is the bandwidth utilization efficiency of full-duplex Ethernet? - Answers 100%
What does a switch use to locate and load the IOS image? - Answers BOOT environment variable
Refer to the exhibit. The Fa0/2 interface on switch S1 has been configured with the switchport port-
security mac-address 0023.189d.6456 command and a workstation has been connected. What could
be the reason that the Fa0/2 interface is shut down? - Answers The MAC address of PC1 that
connects to the Fa0/2 interface is not the configured MAC address.
What is the first action in the boot sequence when a switch is powered on? - Answers load a power-
on self-test program
Which switch component reduces the amount of packet handling time inside the switch? - Answers
ASIC
What is the result of issuing the no switchport port-security mac-address sticky command on an
interface with port security configured? - Answers The sticky secure MAC addresses remain part of
the address table but are removed from the running configuration.
What information is added to the switch table from incoming frames? - Answers source MAC address
and incoming port number
After which step of the switch bootup sequence is the boot loader executed? - Answers after POST
execution
A network administrator plugs a new PC into a switch port. The LED for that port changes to solid
green. What statement best describes the current status of the port? - Answers The port is
operational and ready to transmit packets.
What security benefit is gained from enabling BPDU guard on PortFast enabled interfaces? - Answers
Preventing rogue switches from being added to the network
If one end of an Ethernet connection is configured for full duplex and the other end of the connection
is configured for half duplex, where would late collisions be observed? - Answers on the half-duplex
end of the connection
Which impact does adding a Layer 2 switch have on a network? - Answers an increase in the size of
the broadcast domain
What is the significant difference between a hub and a Layer 2 LAN switch? - Answers A hub extends
a collision domain, and a switch divides collision domains.
An attacker has bypassed physical security and was able to connect a laptop to an Ethernet interface
on a switch. If all the switch ports are configured with port security and the violation mode is set to
factory-default, which action is taken against the attacker? - Answers Packets with unknown source
addresses are dropped and the interface becomes error-disabled and turns off the port LED.
An IT security specialist enables port security on a switch port of a Cisco switch. What is the default
violation mode in use until the switch port is configured to use a different violation mode? - Answers
Shutdown
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex
operation. Which statement accurately reflects the operation of this link? - Answers No collisions will
occur on this link.
Which protocol adds security to remote connections? - Answers SSH
What is a possible cause of runt Ethernet frames when a switch is being used? - Answers
Malfunctioning NIC
Refer to the exhibit. How many broadcast domains are displayed? - Answers 8
