Hoofdstuk 5 Flashcards
Which statement describes the port speed LED on the Cisco Catalyst 2960 switch?
If the LED is green, the port is operating at 100 Mb/s. If the LED is off, the port is not operating. If the LED is blinking green, the port is operating at 10 Mb/s. If the LED is amber, the port is operating at 1000 Mb/s.
If the LED is green, the port is operating at 100 Mb/s.
Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?
config-register boot system boot loader confreg
boot system
What is a function of the switch boot loader?
to speed up the boot process to provide security for the vulnerable state when the switch is booting to control how much RAM is available to the switch during the boot process to provide an environment to operate in when the switch operating system cannot be found
to provide an environment to operate in when the switch operating system cannot be found
Which interface is the default location that would contain the IP address used to manage a 24-port Ethernet switch?
VLAN 1
Fa0/0
Fa0/1
interface connected to the default gateway
VLAN 99
VLAN 1
A production switch is reloaded and finishes with a Switch> prompt. What two facts can be determined? (Choose two.)
POST occurred normally. The boot process was interrupted. There is not enough RAM or flash on this router. A full version of the Cisco IOS was located and loaded. The switch did not locate the Cisco IOS in flash, so it defaulted to ROM.
POST occurred normally.
A full version of the Cisco IOS was located and loaded.
Which two statements are true about using full-duplex Fast Ethernet? (Choose two.)
Performance is improved with bidirectional data flow. Latency is reduced because the NIC processes frames faster. Nodes operate in full-duplex with unidirectional data flow. Performance is improved because the NIC is able to detect collisions. Full-duplex Fast Ethernet offers 100 percent efficiency in both directions.
Performance is improved with bidirectional data flow.
Full-duplex Fast Ethernet offers 100 percent efficiency in both directions.
In which situation would a technician use the show interfaces switch command?
to determine if remote access is enabled when packets are being dropped from a particular directly attached host when an end device can reach local devices, but not remote devices to determine the MAC address of a directly attached network device on a particular interface
when packets are being dropped from a particular directly attached host
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?
on both ends of the connection on the full-duplex end of the connection only on serial interfaces on the half-duplex end of the connection
on the half-duplex end of the connection
What is one difference between using Telnet or SSH to connect to a network device for management purposes?
Telnet uses UDP as the transport protocol whereas SSH uses TCP. Telnet does not provide authentication whereas SSH provides authentication. Telnet supports a host GUI whereas SSH only supports a host CLI. Telnet sends a username and password in plain text, whereas SSH encrypts the username and password.
Telnet sends a username and password in plain text, whereas SSH encrypts the username and password.
Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement?
- ip ssh version 2
- ip domain-name cisco.com
- crypto key generate rsa
- line vty 0 15
- transport input all
Use SSH version 1.
Reconfigure the RSA key.
Configure SSH on a different line.
Modify the transport input command.
Modify the transport input command.
What is the effect of using the switchport port-security command?
enables port security on an interface enables port security globally on the switch automatically shuts an interface down if applied to a trunk port detects the first MAC address in a frame that comes into a port and places that MAC address in the MAC address table
enables port security on an interface
Where are dynamically learned MAC addresses stored when sticky learning is enabled with the switchport port-security mac-address sticky command?
ROM RAM NVRAM flash
RAM
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?
restrict protect warning shutdown
Restrict
Which two statements are true regarding switch port security? (Choose two.)
The three configurable violation modes all log violations via SNMP. Dynamically learned secure MAC addresses are lost when the switch reboots. The three configurable violation modes all require user intervention to re-enable ports. 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.
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.
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. Clear the MAC address table on the switch. Issue the shutdown and then no shutdown interface commands.
Issue the shutdown and then no shutdown interface commands.
