Shared Flashcard Set

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Routing and Switching Chapter 2
N/A
26
Computer Networking
Undergraduate 1
03/10/2015

Additional Computer Networking Flashcards

 


 

Cards

Term
Which type of cable does a network administrator need to connect a PC to a switch to recover it after the Cisco IOS software fails to load?
Definition
a console cable*
Term

Which two basic functions are performed by network security tools? (Choose two.)


-writing a security policy document for protecting networks


-controlling physical access to user devices

 

-revealing the type of information an attacker is able to gather from monitoring network traffic

 

-simulating attacks against the production network to determine any existing vulnerabilities

 

-educating employees about social engineering attacks

Definition

revealing the type of information an attacker is able to gather from monitoring network traffic*


simulating attacks against the production network to determine any existing vulnerabilities*

Term
While troubleshooting a connectivity problem, a network administrator notices that a switch port status LED is alternating between green and amber. What could this LED indicate?
Definition
The port is experiencing errors.*
Term

Which three statements are true about using full-duplex Fast Ethernet? (Choose three.)


- Performance is improved with bidirectional data flow.

 


- Performance is improved because the NIC is able to detect collisions.

 


- Latency is reduced because the NIC processes frames faster.

 


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

 


- Nodes operate in full-duplex with unidirectional data flow.


- Performance is improved because the collision detect function is disabled on the device.

Definition

Performance is improved with bidirectional data flow.*


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


Performance is improved because the collision detect function is disabled on the device.*

Term
In which type of attack does a malicious node request all available IP addresses in the address pool of a DHCP server in order to prevent legitimate hosts from obtaining network access?
Definition
DHCP starvation*
Term
Which protocol or service sends broadcasts containing the Cisco IOS software version of the sending device, and the packets of which can be captured by malicious hosts on the network?
Definition
CDP*
Term

Which two statements are true regarding switch port security? (Choose two.)


 

The three configurable violation modes all require user intervention to re-enable ports.

 


The three configurable violation modes all log violations via SNMP.

 


After entering the sticky parameter, only MAC addresses subsequently learned are converted to secure MAC addresses.

 


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.

Definition

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.*

Term

The network administrator enters the following commands on a Cisco switch:


Switch(config)# interface vlan1
Switch(config-if)# ip address 192.168.1.2 255.255.255.0
Switch(config-if)# no shutdown

What is the effect of entering these commands?


A) The address of the default gateway for this LAN is 192.168.1.2/24.


B) Users on the 192.168.1.0/24 subnet are able to ping the switch at IP address 192.168.1.2.*


C) All devices attached to this switch must be in the 192.168.1.0/24 subnet to communicate.


D) The switch is able to forward frames to remote networks.

Definition
Users on the 192.168.1.0/24 subnet are able to ping the switch at IP address 192.168.1.2.*
Term
Which method would mitigate a MAC address flooding attack?
Definition
configuring port security*
Term

Fill in the blank.


” _______ ” communication allows both ends of a connection to transmit and receive data simultaneously.

Definition

” Full-duplex” communication allows both ends of a connection to transmit and receive data simultaneously.

 

Full-duplex communication improves the performance of a switched LAN, increasing effective bandwidth by allowing both ends of a connection to transmit and receive data simultaneously.

Term
Which interface is the default location that would contain the IP address used to manage a 24-port Ethernet switch?
Definition
VLAN 1*
Term
Which action will bring an error-disabled switch port back to an operational state?
Definition
Issue the shutdown and then no shutdown interface commands.*
Term


Fill in the blank.
When port security is enabled, a switch port uses the default violation mode of    ”   _______  ”    until specifically configured to use a different violation mode.

Definition

When port security is enabled, a switch port uses the default violation mode of    ”   shutdown  ”    until specifically configured to use a different violation mode.

 

If no violation mode is specified when port security is enabled on a switch port, then the security violation mode defaults to shutdown.

Term
What impact does the use of the mdix auto configuration command have on an Ethernet interface on a switch?
Definition
automatically detects copper cable type*
Term
Which command displays information about the auto-MDIX setting for a specific interface?
Definition
show controllers*
Term

A production switch is reloaded and finishes with a Switch> prompt. What two facts can be determined? (Choose two.)

 

- There is not enough RAM or flash on this router.


- 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.


- The boot process was interrupted.


- POST occurred normally.

Definition

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

 

- POST occurred normally.

Term

Which two statements are true about using full-duplex Fast Ethernet?


- 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.

Definition

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



Performance is improved with bidirectional data flow.*

Term
[image]
Definition
Modify the transport input command.*
Term
[image]
Definition
 ip address 192.168.99.2 255.255.255.0
Term
[image]
Definition

SWA(config-if)# switchport port-security
SWA(config-if)# switchport port-security maximum 2
SWA(config-if)# switchport port-security mac-address sticky

Term
[image]
Definition

Packets with unknown source addresses will be dropped.*

Term
[image]
Definition
There could be too much electrical interference and noise on the link.*
Term
[image]
Definition
The port violation mode is the default for any port that has port security enabled.*
Term
[image]
Definition

Place the options in the following order:
step 3
– not scored –
step 1 
step 4 
step 2 
step 5 
step 6

Term
[image]
Definition
only the G0/1 and G0/24 ports*
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