Chapter 05 Exam Flashcards
A network administrator configures the port security feature on a switch. The security policy specifies that each access port should allow up to two MAC addresses. When the maximum number of MAC addresses is reached, a frame with the unknown source MAC address is dropped and a notification is sent to the syslog server. Which security violation mode should be configured for each access port?
protect
warning
shutdown
restrict
restrict
Which two statements are true about using full-duplex Fast Ethernet? (Choose two.)
Performance is improved because the NIC is able to detect collisions.
Performance is improved with bidirectional data flow.
Full-duplex Fast Ethernet offers 100 percent efficiency in both directions.
Nodes operate in full-duplex with unidirectional data flow.
Latency is reduced because the NIC processes frames faster.
Performance is improved with bidirectional data flow.
Full-duplex Fast Ethernet offers 100 percent efficiency in both directions.
Which action will bring an error-disabled switch port back to an operational state?
Remove and reconfigure port security on the interface.
Issue the switchport mode access command on the interface.
Issue the shutdown and then no shutdown interface commands.
Clear the MAC address table on the switch.
Issue the shutdown and then no shutdown interface commands.
What is the effect of using the switchport port-security command?
detects the first MAC address in a frame that comes into a port and places that MAC address in the MAC address table
automatically shuts an interface down if applied to a trunk port
enables port security on an interface
enables port security globally on the switch
enables port security on an interface
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?
only on serial interfaces
on the half-duplex end of the connection
on both ends of the connection
on the full-duplex end of the connection
on the half-duplex end of the connection
A production switch is reloaded and finishes with a Switch> prompt. What two facts can be determined? (Choose two.)
A full version of the Cisco IOS was located and loaded.
POST occurred normally.
There is not enough RAM or flash on this router.
The boot process was interrupted.
The switch did not locate the Cisco IOS in flash, so it defaulted to ROM.
A full version of the Cisco IOS was located and loaded.
POST occurred normally.
Which statement describes the port speed LED on the Cisco Catalyst 2960 switch?
If the LED is off, the port is not operating.
If the LED is green, the port is operating at 100 Mb/s.
If the LED is amber, the port is operating at 1000 Mb/s.
If the LED is blinking green, the port is operating at 10 Mb/s.
If the LED is green, the port is operating at 100 Mb/s.
Which interface is the default location that would contain the IP address used to manage a 24-port Ethernet switch?
interface connected to the default gateway
Fa0/1
VLAN 99
VLAN 1
Fa0/0
VLAN 1
Where are dynamically learned MAC addresses stored when sticky learning is enabled with the switchport port-security mac-address sticky command?
NVRAM
ROM
RAM
flash
RAM
Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?
confreg
config-register
boot loader
boot system
boot system
In which situation would a technician use the show interfaces switch command?
to determine if remote access is enabled
to determine the MAC address of a directly attached network device on a particular interface
when an end device can reach local devices, but not remote devices
when packets are being dropped from a particular directly attached host
when packets are being dropped from a particular directly attached host
What is one difference between using Telnet or SSH to connect to a network device for management purposes?
Telnet does not provide authentication whereas SSH provides authentication.
Telnet sends a username and password in plain text, whereas SSH encrypts the username and password.
Telnet supports a host GUI whereas SSH only supports a host CLI.
Telnet uses UDP as the transport protocol whereas SSH uses TCP.
Telnet sends a username and password in plain text, whereas SSH encrypts the username and password.
Which two statements are true regarding switch port security? (Choose two.)
Dynamically learned secure MAC addresses are lost when the switch reboots.
After entering the sticky parameter, only MAC addresses subsequently learned are converted to secure MAC addresses.
If fewer than the maximum number of MAC addresses for a port are configured statically, dynamically learned addresses are added to CAM until the maximum number is reached.
The three configurable violation modes all require user intervention to re-enable ports.
The three configurable violation modes all log violations via SNMP.
Dynamically learned secure MAC addresses are lost when the switch reboots.
If fewer than the maximum number of MAC addresses for a port are configured statically, dynamically learned addresses are added to CAM until the maximum number is reached.
What is a function of the switch boot loader?
to provide an environment to operate in when the switch operating system cannot be found
to control how much RAM is available to the switch during the boot process
to speed up the boot process
to provide security for the vulnerable state when the switch is booting
to provide an environment to operate in when the switch operating system cannot be found
