Question 1.
Refer to the exhibit.
How should the FastEthernet0/1 ports on the 2950 model switches that are shown in the exhibit be configured to allow connectivity between all devices?

A. The ports only need to be connected by a crossover cable.
B. SwitchX (config)# interface fastethernet 0/1
    SwitchX (config-if)# switchport mode access
    SwitchX (config-if)# switchport access vlan 1
C. SwitchX (config)# interface fastethernet 0/1
    SwitchX (config-if)# switchport mode trunk
    SwitchX (config-if)# switchport trunk vlan 1
    SwitchX (config-if)# switchport trunk vlan 10
    SwitchX (config-if)# switchport trunk vlan 20
D. SwitchX(config)# interface fastethernet 0/1
    SwitchX(config-if)# switchport mode trunk

Answer:  D

Explanation:

Question 2.
Refer to the exhibit.

Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)

A. Host E and host F use the same IP gateway address.
B. Router1 and Switch2 should be connected via a crossover cable.
C. Router1 will not play a role in communications between host A and host D.
D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
E. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.
F. The FastEthernet 0/0 interface on Router1 and Switch2 trunk ports must be configured using the same encapsulation type.

Answer:  D, F

Explanation:

Question 3.
A department decides to replace its hub with a Catalyst 2950 switch that is no longer needed by another department. To prepare the switch for installation, the network administrator has erased the startup configuration and reloaded the switch. However, PCs that are connected to the switch experience various connectivity problems. 

What is a possible cause of the problem?

A. The VLAN database was not erased.
B. The management VLAN is disabled.
C. The running configuration should have been erased.
D. The "mode" button was not pressed when the switch was reloaded.
E. The switch was not configured with an IP address or a default gateway.

Answer:  A

Explanation:

Question 4.
Refer to the exhibit.

Why has this switch not been elected the root bridge for VLAN1?

A. It has more than one interface that is connected to the root network segment.
B. It is running RSTP while the elected root bridge is running 802.1d spanning tree.
C. It has a higher MAC address than the elected root bridge.
D. It has a higher bridge ID than the elected root bridge.

Answer:  D

Explanation:

Question 5.
Refer to the exhibit.
The following commands are executed on interface fa0/1 of 2950Switch.
2950Switch(config-if)# switchport port-security
2950Switch(config-if)# switchport port-security mac-address sticky
2950Switch(config-if)# switchport port-security maximum 1
The Ethernet frame that is shown arrives on interface fa0/1.

What two functions will occur when this frame is received by 2950Switch? (Choose two.)

A. The MAC address table will now have an additional entry of fa0/1 FFFF.FFFF.FFFF.
B. Only host A will be allowed to transmit frames on fa0/1.
C. This frame will be discarded when it is received by 2950Switch.
D. All frames arriving on 2950Switch with a destination of 0000.00aa.aaaa will be forwarded out fa0/1.
E. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1.
F. Only frames from source 0000.00bb.bbbb, the first learned MAC address of 2950Switch, will be forwarded out fa0/1.

Answer:  B, D

Explanation:

Question 6.
Which two of these statements regarding RSTP are correct? (Choose two.)

A. RSTP cannot operate with PVST+.
B. RSTP defines new port roles.
C. RSTP defines no new port states.
D. RSTP is a proprietary implementation of IEEE 802.1D STP.
E. RSTP is compatible with the original IEEE 802.1D STP.

Answer:  B, E

Explanation:

Question 7.
Refer to exhibit.
A network administrator cannot establish a Telnet session with the indicated router. 

What is the cause of this failure?

A. A Level 5 password is not set.
B. An ACL is blocking Telnet access.
C. The vty password is missing.
D. The console password is missing.

Answer:  C

Explanation:

Question 8.
A network administrator needs to configure port security on a switch. 

Which two statements are true? (Choose two.)

A. The network administrator can apply port security to dynamic access ports.
B. The network administrator can apply port security to EtherChannels.
C. When dynamic MAC address learning is enabled on an interface, the switch can learn new addresses, up to the maximum defined.
D. The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
E. The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN.

Answer:  C, D

Explanation:

Question 9.
What are two characteristics of a switch that is configured as a VTP client? (Choose two.)

A. If a switch that is configured to operate in client mode cannot access a VTP server, then the switch reverts to transparent mode.
B. On switches that are configured to operate in client mode, VLANs can be created, deleted, or renamed locally.
C. The local VLAN configuration is updated only when an update that has a higher configuration revision number is received.
D. VTP advertisements are not forwarded to neighboring switches that are configured in VTP transparent mode.
E. VTP client is the default VTP mode.
F. When switches in VTP client mode are rebooted, they send a VTP advertisement request to the VTP servers.

Answer:  C, F

Explanation:

Question 10.
At which layer of the OSI model is RSTP used to prevent loops?

A. physical
B. data link
C. network
D. transport

Answer:  B

Explanation:

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