CCNA 3 Chapter 7 Exam Answers
1. Wireless users on a network complain about poor performance within a small area of a room. Moving away from this area in any direction improves performance dramatically. What is the first step in designing a solution to this problem?
This might be RF channel overlap, so the technician should verify the channels in use on each wireless access point and change to non-overlapping channels.
The RF power settings might be set too low on the wireless access points servicing the room. Increase the RF output power on all wireless access points.
Install a new wireless access point in this center area to provide coverage.
Verify that the wireless access points have sufficient in-line power and connectivity to the wired network.
2. Which network design process identifies where to place access points?
site survey
risk assessment
scalability design
network protocol analysis
3. What will a wireless client transmit to discover the available WLAN networks?
beacon
password
probe request
association request
CCNA 3 Chapter 6 Exam Answers
1. Refer to the exhibit. All devices are configured as shown in the exhibit. PC2 can successfully ping the F0/0 interface on R1. PC2 cannot ping PC1. What might be the reason for this failure?
R1 interface F0/1 has not been configured for subinterface operation.
S1 interface F0/6 needs to be configured for operation in VLAN10.
S1 interface F0/8 is in the wrong VLAN.
S1 port F0/6 is not in VLAN10.
2. Refer to the exhibit. Switch1 is correctly configured for the VLANs that are displayed in the graphic. The configuration that is shown was applied to RTA to allow for interVLAN connectivity between hosts attached to Switch1. After testing the network, the administrator logged the following report:
Hosts within each VLAN can communicate with each other.
Hosts in VLAN5 and VLAN33 are able to communicate with each other.
Hosts connected to Fa0/1 through Fa0/5 do not have connectivity to host in other VLANs.
Why are hosts connected to Fa0/1 through Fa0/5 unable to communicate with hosts in different VLANs?
The router interface is shut down.
The VLAN IDs do not match the subinterface numbers.
All of the subinterface addresses on the router are in the same subnet.
The router was not configured to forward traffic for VLAN2.
The physical interface, FastEthernet0/0, was not configured with an IP address.
3. Refer to the exhibit. Which three statements describe the network design shown in the exhibit? (Choose three.)
This design will not scale easily.
The router merges the VLANs into a single broadcast domain.
This design uses more switch and router ports than are necessary.
This design exceeds the maximum number of VLANs that can be attached to a switch.
This design requires the use of the ISL or 802.1q protocol on the links between the switch and the router.
If the physical interfaces between the switch and router are operational, the devices on the different VLANs can communicate through the router.
CCNA 3 Chapter 5 Exam Answers
1. In which two ways is the information that is contained in BPDUs used by switches? (Choose two.)
to negotiate a trunk between switches
to set the duplex mode of a redundant link
to identify the shortest path to the root bridge
to prevent loops by sharing bridging tables between connected switches
to determine which ports will forward frames as part of the spanning tree
2. In which STP state does a port record MAC addresses but not forward user data?
blocking
learning
disabling
listening
forwarding
3. Refer to the exhibit. The spanning-tree port priority of each interface is at the default setting. The network administrator enters the spanning-tree vlan 1 root primary command on S4. What is the effect of the command?
Spanning tree blocks Gi0/1 on S3.
Gi0/2 on S3 transitions to a root port.
Port priority makes Gi0/2 on S1 a root port.
S4 is already the root bridge, so there are no port changes.
CCNA 3 Chapter 4 Exam Answers
1. Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two.)
If this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own VLAN information to be more recent than the VLAN information advertised by this switch.
This switch shows no configuration revision errors.
This switch has established two-way communication with the neighboring devices.
This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain.
This switch is configured to allows the network manager to maximize bandwidth by restricting traffic to specific network devices.
2. A network administrator is replacing a failed switch with a switch that was previously on the network. What precautionary step should the administrator take on the replacement switch to avoid incorrect VLAN information from propagating through the network?
Enable VTP pruning.
Change the VTP domain name.
Change the VTP mode to client.
Change all the interfaces on the switch to access ports.
3. Refer to the exhibit. The switches in the exhibit are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this?
VLANs cannot be created on transparent mode switches.
Transparent mode switches do not forward VTP advertisements.
VLANs created on transparent mode switches are not included in VTP advertisements.
Server mode switches neither listen to nor forward VTP messages from transparent mode switches.
CCNA 3 Chapter 3 Exam Answers
1. Refer to the exhibit. Which two conclusions can be drawn regarding the switch that produced the output shown? (Choose two.)
The network administrator configured VLANs 1002-1005.
The VLANs are in the active state and are in the process of negotiating configuration parameters.
A FDDI trunk has been configured on this switch.
The command switchport access vlan 20 was entered in interface configuration mode for Fast Ethernet interface 0/1.
Devices attached to ports fa0/5 through fa0/8 cannot communicate with devices attached to ports fa0/9 through fa0/12 without the use of a Layer 3 device.
2. Refer to the exhibit. How far is a broadcast frame that is sent by computer A propagated in the LAN domain?
none of the computers will receive the broadcast frame
computer A, computer B, computer C
computer A, computer D, computer G
computer B, computer C
computer D, computer G
computer A, computer B, computer C, computer D, computer E, computer F, computer G, computer H, computer I
3. What happens to the member ports of a VLAN when the VLAN is deleted?
The ports cannot communicate with other ports.
The ports default back to the management VLAN.
The ports automatically become a part of VLAN1.
The ports remain a part of that VLAN until the switch is rebooted. They then become members of the management VLAN.