單項(xiàng)選擇題

VLAN maps have been configured on switch R1.
 Which of the following actions are taken in a  VLAN map that does not contain a match clause?  ()

A. Implicit deny feature at end of list.
B. Implicit deny feature at start of list.
C. Implicit forward feature at end of list
D. Implicit forward feature at start of list.


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1.單項(xiàng)選擇題

Refer to the exhibit. The web servers WS_1 and WS_2 need to be accessed by external and  internal users. For security reasons, the servers should not communicate with each other,  
although they are located on the same subnet. The servers do need, however, to communicate  with a database server located in the inside network.
 What configuration will isolate the servers  from each other? ()

A. The switch ports 3/1 and 3/2 will be defined as secondary VLAN community ports. The ports  connecting to the two firewalls will be defined as primary VLAN promiscuous ports.
B. The switch ports 3/1 and 3/2 and the ports connecting to the two firewalls will be defined as  primary VLAN promiscuous ports.
C. The switch ports 3/1 and 3/2 and the ports connecting to the two firewalls will be defined as  primary VLAN community ports.
D. The switch ports 3/1 and 3/2 will be defined as secondary VLAN isolated ports. The ports  connecting to the two firewalls will be defined as primary VLAN promiscuous ports.

3.單項(xiàng)選擇題

Refer to the exhibit. 
What will happen to traffic within VLAN 14 with a source address of  172.16.10.5?()

A. The traffic will be forwarded to the router processor for further processing.
B. The traffic will be dropped.
C. The traffic will be forwarded to the TCAM for further processing.
D. The traffic will be forwarded without further processing.

4.單項(xiàng)選擇題

The Company security administrator wants to prevent DHCP spoofing. 
Which statement is true  about DHCP spoofing operation?()

A. DHCP spoofing and SPAN cannot be used on the same port of a switch.
B. To prevent a DHCP spoofing, the DHCP server must create a static ARP entry that cannot be  updated by a dynamic ARP packet.
C. To prevent a DHCP spoofing, the switch must have DHCP server services disabled and a static  entry pointing towards the DHCP server.
D. DHCP spoofing can be prevented by placing all unused ports in an unused VLAN.
E. None of the other alternatives apply.

5.多項(xiàng)選擇題

The Company security administrator is concerned with layer 2 network attacks. 
Which two  statements about these attacks are true? ()

A. ARP spoofing attacks are attempts to redirect traffic to an attacking host by encapsulating a  false 802.1Q header on a frame and causing traffic to be delivered to the wrong VLAN.
B. ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  message with a forged identity to a transmitting host.
C. MAC address flooding is an attempt to force a switch to send all information out every port byoverloading the MAC address table.
D. ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  packet that contains the forged address of the next hop router.
E. MAC address flooding is an attempt to redirect traffic to a single port by associating that port  with all MAC addresses in the VLAN.

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