CCNA 2 MOD 10-13

1. Which Layer 2 attack will result in legitimate users not getting valid IP addresses?

• ARP spoofing

• DHCP starvation

• IP address spoofing

• MAC address flooding

2. What mitigation plan is best for thwarting a DoS attack that is creating a MAC address table overflow?

• Disable DTP

• Disable STP

• Enable port security

• place unused ports in an unused VLAN

3. Which three Cisco products focus on endpoint security solutions? (Choose three.)

• ISP Sensor Appliance

• Web Security Appliance

• Email Security Appliance

• SSL/IPsec VPN Appliance

• NAC Appliance

4. True or False?
In the 802.1X standard, the client attempting to access the network is referred to as the supplicant.

• true

• false

5. Which authentication method stores usernames and passwords in the router and is ideal for small networks?

• • server-based AAA over TACACS+

• • local AAA over RADIUS

• • server-based AAA

• • local AAA over TACACS+

• local AAA

6. What represents a best practice concerning discovery protocols such as CDP and LLDP on network devices?

• • Enable CDP on edge devices, and enable LLDP on interior devices.

• • Use the open standard LLDP rather than CDP.

• • Use the default router settings for CDP and LLDP.

• Disable both protocols on all interfaces where they are not required.

7. Which protocol should be used to mitigate the vulnerability of using Telnet to remotely manage network devices?

• • SNMP

• • TFTP

• SSH

• SCP

8. Which statement describes the behavior of a switch when the MAC address table is full?

• • It treats frames as unknown unicast and floods all incoming frames to all ports on the switch.

• • It treats frames as unknown unicast and floods all incoming frames to all ports across multiple switches.

• It treats frames as unknown unicast and floods all incoming frames to all ports within the local VLAN.

• • It treats frames as unknown unicast and floods all incoming frames to all ports within the collision domain.

9. What device is considered a supplicant during the 802.1X authentication process?

• • the router that is serving as the default gateway

• • the authentication server that is performing client authentication

• the client that is requesting authentication

• • the switch that is controlling network access

10. Refer to the exhibit. Port Fa0/2 has already been configured appropriately. The IP phone and PC work properly. Which switch configuration would be most appropriate for port Fa0/2 if the network administrator has the following goals?

No one is allowed to disconnect the IP phone or the PC and connect some other wired device.
If a different device is connected, port Fa0/2 is shut down.
The switch should automatically detect the MAC address of the IP phone and the PC and add those addresses to the running configuration.

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

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

• • SWA(config-if)# switchport port-security violation restrict

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

• SWA(config-if)# switchport port-security

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

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