Chapter 05 Exam Flashcards

1
Q

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

A

restrict

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

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.

A

Performance is improved with bidirectional data flow.

Full-duplex Fast Ethernet offers 100 percent efficiency in both directions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

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.

A

Issue the shutdown and then no shutdown interface commands.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

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

A

enables port security on an interface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

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

A

on the half-duplex end of the connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

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

A full version of the Cisco IOS was located and loaded.

POST occurred normally.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

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.

A

If the LED is green, the port is operating at 100 Mb/s.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

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

A

VLAN 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

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

A

RAM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

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

A

boot system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

when packets are being dropped from a particular directly attached host

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

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.

A

Telnet sends a username and password in plain text, whereas SSH encrypts the username and password.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

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.

A

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.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

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

A

to provide an environment to operate in when the switch operating system cannot be found

How well did you know this?
1
Not at all
2
3
4
5
Perfectly