QUESTION 91
Which statement correctly describes enabling BPDU guard on an access port that is also enabled for PortFast?

A.    Upon startup, the port transmits 10 BPDUs. If the port receives a BPDU, PortFast and BPDU guard are disabled on that port and it assumes normal STP operation.
B.    The access port ignores any received BPDU.
C.    If the port receives a BPDU, it is placed into the error-disable state.
D.    BPDU guard is configured only globally and the BPDU filter is required for port-level configuration.

Answer: C

QUESTION 92
Which statement about the Port Aggregation Protocol is true?

A.    Configuration changes made on the port-channel interface apply to all physical ports assigned to the port-channel interface.
B.    Configuration changes made on a physical port that is a member of a port-channel interface apply to the port-channel interface.
C.    Configuration changes are not permitted with Port Aggregation Protocol. Instead, the standardized Link Aggregation Control Protocol should be used if configuration changes are required.
D.    The physical port must first be disassociated from the port-channel interface before any configuration changes can be made.

Answer: A

QUESTION 93
In which three HSRP states do routers send hello messages? (Choose three.)

A.    standby
B.    learn
C.    listen
D.    speak
E.    active

Answer: ADE

QUESTION 94
Refer to the exhibit. Which three statements are true? (Choose three.)

A.    A trunk link will be formed.
B.    Only VLANs 1-1001 will travel across the trunk link.
C.    The native VLAN for switch B is VLAN 1.
D.    DTP is not running on switch A.
E.    DTP packets are sent from switch B.

Answer: ACE

QUESTION 95
Which statement about 802.1Q trunking is true?

A.    Both switches must be in the same VTP domain.
B.    The encapsulation type on both ends of the trunk does not have to match.
C.    The native VLAN on both ends of the trunk must be VLAN 1.
D.    In 802.1Q trunking, all VLAN packets are tagged on the trunk link, except the native VLAN.

Answer: D

QUESTION 96
Refer to the exhibit. Host A and Host B are connected to the Cisco Catalyst 3550 switch and have been assigned to their respective VLANs. The rest of the 3550 configuration is the default configuration. Host A is able to ping its default gateway, 10.10.10.1, but is unable to ping Host B. Given the output in the exhibit, which statement is true?

A.    HSRP must be configured on SW1.
B.    A separate router is needed to support inter-VLAN routing.
C.    Interface VLAN 10 must be configured on the SW1 switch.
D.    The global configuration command ip routing must be configured on the SW1 switch.
E.    VLANs 10 and 15 must be created in the VLAN database mode.
F.    VTP must be configured to support inter-VLAN routing.

Answer: D

QUESTION 97
Refer to the exhibit. What happens when one more user is connected to interface FastEthernet 5/1?

A.    All secure addresses age out and are removed from the secure address list. The security violation counter increments.
B.    The first address learned on the port is removed from the secure address list and is replaced with the new address.
C.    The interface is placed into the error-disabled state immediately, and an SNMP trap notification is sent.
D.    The packets with the new source addresses are dropped until a sufficient number of secure MAC addresses are removed from the secure address list.

Answer: C

QUESTION 98
What are two methods of mitigating MAC address flooding attacks? (Choose two.)

A.    Place unused ports in a common VLAN.
B.    Implement private VLANs.
C.    Implement DHCP snooping.
D.    Implement port security.
E.    Implement VLAN access maps

Answer: DE

QUESTION 99
Refer to the exhibit. What happens to traffic within VLAN 14 with a source address of 172.16.10.5?

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

Answer: C

QUESTION 100
Refer to the exhibit. What information can be derived from the output?

A.    Interfaces FastEthernet3/1 and FastEthernet3/2 are connected to devices that are sending BPDUs with a superior root bridge parameter and no traffic is forwarded across the ports. After the sending of BPDUs has stopped, the interfaces must be shut down administratively, and brought back up, to resume normal operation.
B.    Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a superior root bridge parameter, but traffic is still forwarded across the ports.
C.    Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a superior root bridge parameter and no traffic is forwarded across the ports. After the inaccurate BPDUs have been stopped, the interfaces automatically recover and resume normal operation.
D.    Interfaces FastEthernet3/1 and FastEthernet3/2 are candidates for becoming the STP root port, but neither can realize that role until BPDUs with a superior root bridge parameter are no longer received on at least one of the interfaces.

Answer: C

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