單項(xiàng)選擇題

pany has implemented 802.1X authentication as a security enhancement.
Which statement is true about 802.1x port-based authentication？（）

A. TACACS+ is the only supported authentication server type.
B. If a host initiates the authentication process and does not receive a response， it assumes it is not authorized.
C. RADIUS is the only supported authentication server type.
D. Before transmitting data， an 802.1x host must determine the authorization state of the switch.
E. Hosts are required to havea 802.1x authentication client or utilize PPPoE.
F. None of the other alternatives apply.

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單項(xiàng)選擇題

Refer to the exhibit.
How will interface FastEthernnet0/1 respond when an 802.1x-enabled client connects to the port？（）

A. The switch will uniquely authorize the client by using the client MAC address.
B. The switch will cause the port to remain in the unauthorized state， ignoring all attempts by the client to authenticate.
C. The switch port will disable 802.1x port-based authentication and cause the port to transition to the authorized state without any further authentication exchange.
D. The switch port will enable 802.1x port-based authentication and begin relaying authentication messages between the client and the authentication server.

單項(xiàng)選擇題

An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？（）

A. Configure only trusted interfaces with root guard.
B. Implement private VLANs （PVLANs） to carry only user traffic.
C. Implement private VLANs （PVLANs） to carry only DHCP traffic.
D. Configure only untrusted interfaces with root guard.
E. Configure DHCP spoofing on all ports that connect untrusted clients.
F. Configure DHCP snooping only on ports that connect trusted DHCP servers.
G. None of the other alternatives apply

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pany has implemented 802.1X authentication as a security enhancement. Which statement is true about 802.1x port-based authentication？（）

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Refer to the exhibit. How will interface FastEthernnet0/1 respond when an 802.1x-enabled client connects to the port？ （）

An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time. Which procedure would best defend against this type of attack？ （）

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pany has implemented 802.1X authentication as a security enhancement.
Which statement is true about 802.1x port-based authentication？（）

Refer to the exhibit.
How will interface FastEthernnet0/1 respond when an 802.1x-enabled client connects to the port？（）

An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？（）