The Candid Test On CCNA 3 Chapter 3
If you are having a tough time understanding what we have covered CCNA 3 chapter 3 then all you need is a candid test to help refresh your memory before we move on to the next chapter. Give it a try and see if you might need some extra studying hours.
- 1.1. What statement about the 802.1q trunking protocol is true?
- A.
802.1q is Cisco proprietary.
- B.
802.1q frames are mapped to VLANs by MAC address.
- C.
802.1q does NOT require the FCS of the original frame to be recalculated.
- D.
802.1q will not perform operations on frames that are forwarded out access ports.
- 2.2. Which two statements describe the benefits of VLANs? (Choose two.)
- A.
VLANs improve network performance by regulating flow control and window size.
- B.
VLANs enable switches to route packets to remote networks via VLAN ID filtering.
- C.
VLANs reduce network cost by reducing the number of physical ports required on switches.
- D.
VLANs improve network security by isolating users that have access to sensitive data and applications.
- E.
VLANs divide a network into smaller logical networks, resulting in lower susceptibility to broadcast storms.
- 3.3. What are two characteristics of VLAN1 in a default switch configuration?(Choose two.)
- A.
VLAN1 should renamed.
- B.
VLAN 1 is the management VLAN
- C.
All switch ports are members of VLAN1.
- D.
Only switch port 0/1 is assigned to VLAN1.
- E.
Links between switches must be members of VLAN1.
- 4.4. Refer to the exhibit. SW1 and SW2 are new switches being installed in thetopology shown in the exhibit. Interface Fa0/1 on switch SW1 has been configuredwith trunk mode “on”. Which statement is true about forming a trunk link betweenthe switches SW1 and SW2?
- A.
Interface Fa0/2 on switch SW2 will negotiate to become a trunk link if it supports DTP.
- B.
Interface Fa0/2 on switch SW2 can only become a trunk link if statically configured as a trunk.
- C.
Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link if the neighboring interface is configured in nonegotiate mode
- D.
Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link automatically with no consideration of the configuration on the neighboring interface
- 5.Which two statements about the 802.1q trunking protocol are true? (Choosetwo.)
- A.
802.1q is Cisco proprietary.
- B.
802.1q frames are mapped to VLANs by MAC address
- C.
If 802.1q is used on a frame, the FCS must be recalculated.
- D.
802.1q will not perform operations on frames that are forwarded out access ports.
- E.
802.1q allows the encapsulation of the original frame to identify the VLAN from which a frame originated.
- 6.What switch port modes will allow a switch to successfully form a trunking linkif the neighboring switch port is in "dynamic desirable" mode?
- A.
Dynamic desirable mode
- B.
On or dynamic desirable mode
- C.
On, auto, or dynamic desirable mode
- D.
On, auto, dynamic desirable, or nonegotiate mode
- 7.Refer to the exhibit. Company HR is adding PC4, a specialized applicationworkstation, to a new company office. The company will add a switch, S3, connectedvia a trunk link to S2, another switch. For security reasons the new PC will reside inthe HR VLAN, VLAN 10. The new office will use the 172.17.11.0/24 subnet. Afterinstallation, the existing PCs are unable to access shares on PC4. What is the likelycause?
- A.
The switch to switch connection must be configured as an access port to permit access to VLAN 10 on S3
- B.
The new PC is on a different subnet so Fa0/2 on S3 must be configured as a trunk port.
- C.
PC4 must use the same subnet as the other HR VLAN PCs.
- D.
A single VLAN cannot span multiple switches.
- 8.What must the network administrator do to remove Fast Ethernet port fa0/1from VLAN 2 and assign it to VLAN 3?
- A.
Enter the no vlan 2 and the vlan 3 commands in global configuration mode.
- B.
Enter the switchport access vlan 3 command in interface configuration mode.
- C.
Enter the switchport access vlan 3 command in interface configuration mode. Enter the switchport trunk native vlan 3 command in interface configuration mode.
- D.
Enter the no shutdown in interface configuration mode to return it to the default configuration and then configure the port for VLAN 3.
- 9.What is a valid consideration for planning VLAN traffic across multiple switches?
- A.
Configuring interswitch connections as trunks will cause all hosts on any VLAN to receive broadcasts from the other VLANs.
- B.
A trunk connection is affected by broadcast storms on any particular VLAN that is carried by that trunk.
- C.
Restricting trunk connections between switches to a single VLAN will improve efficiency of port usage.
- D.
Carrying all required VLANs on a single access port will ensure proper traffic separation.
- 10.Refer to the exhibit. How far is a broadcast frame that is sent by computer Apropagated in the LAN domain?
- A.
None of the computers will receive the broadcast frame
- B.
Computer A, computer B, computer C
- C.
Computer A, computer D, computer G
- D.
Computer D, computer G
- E.
Computer A, computer B, computer C, computer D, computer E, computer F, computer G, computer H, computer I
- 11.16. What statements describe how hosts on VLANs communicate?
- A.
Hosts on different VLANs use VTP to negotiate a trunk.
- B.
Hosts on different VLANs communicate through routers.
- C.
Hosts on different VLANs should be in the same IP network.
- D.
Hosts on different VLANs examine VLAN ID in the frame tagging to determine if the frame for their network.
- 12.Refer to the exhibit. Which statement is true concerning interface Fa0/5?
- A.
The default native VLAN is being used.
- B.
The trunking mode is set to auto.
- C.
Trunking can occur with non-Cisco switches.
- D.
VLAN information about the interface encapsulates the Ethernet frames.
- 13.Refer to the exhibit. The network administrator has just added VLAN 50 toSwitch1 and Switch2 and assigned hosts on the IP addresses of the VLAN in the10.1.50.0/24 subnet range. Computer A can communicate with computer B, but notwith computer C or computer D. What is the most likely cause of this problem?
- A.
There is a native VLAN mismatch.
- B.
The link between Switch1 and Switch2 is up but not trunked
- C.
The router is not properly configured for inter-VLAN routing.
- D.
VLAN 50 is not allowed to entering the trunk between Switch1 and Switch2.
- 14.13. Refer to the exhibit. Computer B is unable to communicate with computer D.What is the most likely cause of this problem?
- A.
The link between the switches is up but not trunked.
- B.
VLAN 3 is not an allowed VLAN to enter the trunk between the switches.
- C.
The router is not properly configured to route traffic between the VLANs.
- D.
Computer D does not have a proper address for the VLAN 3 address space.
- 15.12. Switch port fa0/1 was manually configured as a trunk, but now it will be used toconnect a host to the network. How should the network administrator reconfigureswitch port Fa0/1?
- A.
Disable DTP.
- B.
Delete any VLANs currently being trunked through port Fa0/1.
- C.
Administratively shut down and re-enable the interface to return it to default.
- D.
Enter the switchport mode access command in interface configuration mode.
- 16.Refer to the exhibit. The exhibited configurations do not allow the switches toform a trunk. What is the most likely cause of this problem?
- A.
Cisco switches only support the ISL trunking protocol.
- B.
The trunk cannot be negotiated with both ends set to auto.
- C.
By default, Switch1 will only allow VLAN 5 across the link.
- D.
A common native VLAN should have been configured on the switches.
- 17.10. What is the effect of the switchport mode dynamic desirable command?
- A.
DTP cannot negotiate the trunk since the native VLAN is not the default VLAN.
- B.
The remote connected interface cannot negotiate a trunk unless it is also configured as dynamic desirable.
- C.
The connected devices dynamically determine when data for multiple VLANs must be transmitted across the link and bring the trunk up as needed.
- D.
A trunk link is formed if the remote connected device is configured with the switchport mode dynamic auto or switchport mode trunk commands
- 18.A network administrator is removing several VLANs from a switch. When theadministrator enters the no vlan 1 command, an error is received. Why did thiscommand generate an error?
- A.
VLAN 1 can never be deleted.
- B.
VLAN 1 can only be deleted by deleting the vlan.dat file.
- C.
VLAN 1 can not be deleted until all ports have been removed from it.
- D.
VLAN 1 can not be deleted until another VLAN has been assigned its responsibilities.
- 19.What happens to the member ports of a VLAN when the VLAN is deleted?
- A.
The ports cannot communicate with other ports
- B.
The ports default back to the management VLAN
- C.
The ports automatically become a part of VLAN1.
- D.
The ports remain a part of that VLAN until the switch is rebooted. They then become members of the management VLAN.
- 20.7. Refer to the exhibit. Which two conclusions can be drawn regarding the switchthat produced the output shown? (Choose two.)
- A.
The network administrator configured VLANs 1002-1005.
- B.
The VLANs are in the active state and are in the process of negotiating configuration parameters.
- C.
A FDDI trunk has been configured on this switch.
- D.
The command switchport access vlan 20 was entered in interface configuration mode for Fast Ethernet interface 0/1.
- E.
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.
- 21.The network administrator wants to separate hosts in Building A into two VLANsnumbered 20 and 30. Which two statements are true concerning VLANconfiguration? (Choose two.)
- A.
The VLANs may be named.
- B.
VLAN information is saved in the startup configuration.
- C.
Non-default VLANs created manually must use the extended range VLAN numbers.
- D.
The network administrator may create the VLANs in either global configuration mode or VLAN database mode
- E.
Both VLANs may be named BUILDING_A to distinguish them from other VLANs in different geographical locations.
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