單項(xiàng)選擇題

A Company switch was configured as shown below: 
switchport mode access  switchport port-security  
switchport port-security maximum 2
switchport port-security mac-address 0002.0002.0002  
switchport port-security violation shutdown  
Given the configuration output shown above, 
what happens when a host with the MAC address of  0003.0003.0003 is directly connected to the switch port? ()

A. The host will be allowed to connect.
B. The port will shut down.
C. The host can only connect through a hub/switch where 0002.0002.0002 is already connected.  
D. The host will be refused access.
E. None of the other alternatives apply


您可能感興趣的試卷

你可能感興趣的試題

1.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.

2.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.

4.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.

5.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.

6.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.

7.單項(xiàng)選擇題

You work as a network technician at Company. Your boss, Mrs.   , is interested in  
switch spoofing. 
She asks you how an attacker would collect information with VLAN hoping  through switch spoofing. You should tell her that the attacking station... ()

A、...uses VTP to collect VLAN information that is sent out and then tags itself with the domain  information in order to capture the data.
B、...will generate frames with two 802.1Q headers to cause the switch to forward the frames to a  VLAN that would be inaccessible to the attacker through legitimate means.
C、...uses DTP to negotiate trunking with a switch port and captures all traffic that is allowed on the  trunk.
D、...tags itself with all usable VLANs to capture data that is passed through the switch, regardless  of the VLAN to which the data belongs.
E、None of the other alternatives apply

8.單項(xiàng)選擇題

You are responsible for increasing the security within the Company LAN. Of the following choices  listed below,
 which is true regarding layer 2 security and mitigation techniques? ()


A. Enable root guard to mitigate ARP address spoofing attacks.
B. Configure DHCP spoofing to mitigate ARP address spoofing attacks.
C. Configure PVLANs to mitigate MAC address flooding attacks.
D. Enable root guard to mitigate DHCP spoofing attacks.
E. Configure dynamic APR inspection (DAI) to mitigate IP address spoofing on DHCP untrusted  ports.
F. Configure port security to mitigate MAC address flooding  
G. None of the other alternatives apply


9.單項(xiàng)選擇題

Refer to the exhibit. An attacker is connected to interface Fa0/11 on switch A-SW2 and attempts to  establish a DHCP server for a man-in-middle attack.
 Which recommendation, if followed, would  mitigate this type of attack?()


A. All switch ports in the Building Access block should be configured as DHCP untrusted ports.  
B. All switch ports in the Building Access block should be configured as DHCP trusted ports.
C. All switch ports connecting to servers in the Server Farm block should be configured as DHCP  untrusted ports.
D. All switch ports connecting to hosts in the Building Access block should be configured as DHCP  trusted ports.
E. All switch ports in the Server Farm block should be configured as DHCP untrusted ports.
F. All switch ports connecting to hosts in the Building Access block should be configured as DHCP  untrusted ports.


10.多項(xiàng)選擇題

Refer to the exhibit. On the basis of the output generated by the show commands, 
which two  statements are true?()

A. Because it is configured as a trunk interface, interface gigabitethernet 0/1 does not appear in  the show vlan output.
B. VLAN 1 will not be encapsulated with an 802.1q header.
C. There are no native VLANs configured on the trunk.
D. VLAN 2 will not be encapsulated with an 802.1q header.
E. All interfaces on the switch have been configured as access ports.
F. Because it has not been assigned to any VLAN, interface gigabitethernet 0/1 does not appear in  the show vlan output.

最新試題

Refer to the exhibit. Based on the output of the show spanning-tree command, which statement is true? ()

題型:?jiǎn)雾?xiàng)選擇題

Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result?()

題型:?jiǎn)雾?xiàng)選擇題

Which three statements about STP timers are true?()

題型:多項(xiàng)選擇題

Which two statements are true when the extended system ID feature is enabled? ()

題型:多項(xiàng)選擇題

Which statement is correct about RSTP port roles?()

題型:?jiǎn)雾?xiàng)選擇題

What must be the same to make multiple switches part of the same Multiple Spanning Tree (MST)?()

題型:?jiǎn)雾?xiàng)選擇題

Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is configured on all switches in the network. SW_B receives this error message on the console port:00:06:34: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/5 (not half  duplex), with SW_A FastEthernet0/4 (half duplex) , with TBA05071417(Cat6K-B) 0/4 (half duplex). What would be the possible outcome of the problem?()

題型:?jiǎn)雾?xiàng)選擇題

DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group. What can be done to make the group function properly ? ()

題型:?jiǎn)雾?xiàng)選擇題

Which option correctly identifies the Cisco IOS switching methods in descending order from the fastest method to the slowest method?()

題型:?jiǎn)雾?xiàng)選擇題

Refer to the exhibit. All network links are FastEthernet. Although there is complete connectivity throughout the network, Front Line users have been complaining that they experience slower network performance when accessing the server farm than the Reception office experiences. Based on the exhibit, which two statements are true?()

題型:多項(xiàng)選擇題