IT 341 Module 8 practice quiz

An attacker has bypasses physical security and was able to connect a laptop to a ethernet interface on a switch. If all the switches are configured with port security and violation mode is set to factory default, which action is taken against the attacker? Packets with unknown source addresses are dropped and there is no notification that a security violation has occurred Packets with unknown source addresses are dropped and the interface becomes error-disabled and turns off the port LED Packets with unknown source addresses are forwarded and there no notification to the Syslog server Packets with unknown source addresses are dropped and there is a notification that a security violation has occurred

Packets with unknown source addresses are dropped and the interface becomes error-disabled and turns off the port LED.

After which step of the switch bootup sequence is the boot loader executed? After POST execution After IOS localization After CPU initialization After IOS localization

after POST execution

What is the first action in the boot sequence when a switch is powdered on? Load a power on self program Load boot loader software Load the default Cisco IOS software Low-level CPU initialization

load a power-on self-test program

What is a possible cause of runt ethernet frames when a switch is being used? Excessive cable length Malfunctioning NIC Late collision Duplex misconfiguration

malfunctioning NIC

What is the bandwidth utilization effectivity of a full-duplex ethernet 50% 80% 25% 100%

100%

What security benefit is gained from enabling BDPDU guard on PortFast enabled interfaces? Preventing buffer overflow attacked Protecting against layer 2 Enforcing the placement of root bridges Preventing rouge switches from being added to the network

preventing rogue switches from being added to the network

What info is added to the switch table from incoming frames? Source MAC address and incoming port number Destination MAC address and incoming port number Source IP address and incoming port number Destination IP address and incoming port number

source MAC address and incoming port number

What is the significant difference between a hub and a later 2 LAN switch? A hub extends a collision domain, and a switch divides collision domains A hub divides collision domains, and a switch divides broadcast domains Each port of a hub is a collision domain, ad each port of a switch is a broadcast domain A hub forwards frames, and a switch forwards only packets

A hub extends a collision domain, and a switch divides collision domains.

Which switch component reduces the amount of packet handling time inside the switch? ASIC Duel Processors Large buffer size Store-and-forward RAM

ASIC

What does a switch use to locate and load the IOS image? NVRAM Startup-config POST BOOT environment variable

BOOT environment variable

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? off restrict protect shutdown

protect

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? Protect Restrict Disabled Shutdown

Shutdown

What is the result of issuing the no switch port-security mac-address sticky command on an interface with port security configured The sticky secure MAC addresses are removed from the address table and from the running configuration The static secure MAC addresses are removed from the address table and from the running configuration The static secure MAC remains part of the address table but is removed from the running configuration The sticky secure MAC remains part of the address table but is removed from the running configuration

The sticky secure MAC addresses remain part of the address table but are removed from the running configuration.

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 status of that port? This port has been disabled by managment and is unable to forward frames This port is operational and ready to transmit packets There is a duplex mismatch error There is a link fault error. This port is unable to forward frames

This port is operational and ready to transmit packets