Module 1 Basic Device Configuration
A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?
4
What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?
64 bytes
how many broadcast domains are displayed with 1 router connected to 4
8
Which statement describes SVIs?
A default SVI is created for VLAN 1 for switch administration.
What is the significant difference between a hub and a Layer 2 LAN switch?
A hub extends a collision domain, and a switch divides collision domains
A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?
A switch with a port that is configured as a trunk is needed when connecting to the router.
Which switch component reduces the amount of packet handling time inside the switch?
ASIC
Which four steps are needed to configure a voice VLAN on a switch port?
Add a voice VLAN.
All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?
Allow VLAN 20 on the trunk link.
What does a switch use to locate and load the IOS image
BOOT environment variable
What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table?
Forward the frame out all ports except the port where the frame was received.
Which statement is correct about Ethernet switch frame forwarding decisions?
Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
Which characteristic describes cut-through switching?
Frames are forwarded without any error checking.
PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin troubleshooting. What conclusion can be made based on the output of this command?
Interface G0/2 is not configured as a trunk.
A Cisco switch currently allows traffic tagged with VLANs 10 and 20 across trunk port Fa0/5. What is the effect of issuing a switchport trunk allowed vlan 30 command on Fa0/5?
It allows only VLAN 30 on F0/5.
What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?
It is a logical interface internal to the router.
What is a characteristic of a routed port on a Layer 3 switch?.
It is not assigned to a VLAN.
A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?
Only devices in VLAN 20 see the frame
Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?
Port Fa0/11 will be returned to VLAN 1.
Which protocol adds security to remote connections?
SSH
On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?
Switch(config)# no vlan 100
A technician is programming switch SW3 to manage voice and data traffic through port Fa0/20. What, if anything, is wrong with the configuration?
The command used to assign the voice VLAN to the switch port is incorrect.
Which two characteristics describe the native VLAN?
The native VLAN traffic will be untagged across the trunk link.
What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?
The port becomes inactive
What happens to switch ports after the VLAN to which they are assigned is deleted?
The ports stop communicating with the attached devices.
A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?
They are configured as trunk interfaces.
How do switch buffers affect network performance?
They store frames received, thus preventing premature frame discarding when network congestion occurs.
How is traffic routed between multiple VLANs on a multilayer switch?
Traffic is routed via internal VLAN interfaces.
After which step of the switch bootup sequence is the boot loader executed?
after POST execution
What impact does adding a Layer 2 switch have on a network?
an increase in the size of the broadcast domain
Which impact does adding a Layer 2 switch have on a network?
an increase in the size of the broadcast domain
Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?
boot system
What type of Ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MDIX feature?
crossover
When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.)
dedicated router is needed
What advantage does SSH offer over Telnet?
encryption
In which memory location are the VLAN configurations of normal range VLANs stored on a Catalyst switch?
flash
Which switch characteristic helps keep traffic local and alleviates network congestion?
high port density
An IPv6-enabled interface is required to have which type of address?
link-local
A PC is to access a web server on another network. Which inter-VLAN method will provide the highest bandwidth at Layer 3 and also provide a default gateway for the PC?
multilayer switch with routing enabled
If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?
on the half-duplex end of the connection
What must an administrator have in order to reset a lost password on a router?
physical access to the router
Which device separates broadcast domains?
router
Which command displays information about the auto-MDIX setting for a specific interface?
show controllers
Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?
show interfaces Fa0/1 switchport
Which command will display a summary of all IPv6-enabled interfaces on a router that includes the IPv6 address and operational status?
show ipv6 interface brief
Which type of address does a switch use to build the MAC address table?
source MAC address
What information is added to the switch table from incoming frames?
source MAC address and incoming port number
Which switching method ensures that the incoming frame is error-free before forwarding?
store-and-forward
When configuring a router as part of a router-on-a-stick inter-VLAN routing topology, where should the IP address be assigned?
subinterface
Which network device can be used to eliminate collisions on an Ethernet network?
switch
A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?
switchport mode trunk
What is the meaning of the number 10 in the encapsulation dot1Q 10 native router subinterface command?
the VLAN ID
What does the term "port density" represent for an Ethernet switch?
the number of available ports
While configuring inter-VLAN routing on a multilayer switch, a network administrator issues the no switchport command on an interface that is connected to another switch. What is the purpose of this command?
to create a routed port for a single network
For what reason would a network administrator use the show interfaces trunk command on a switch?
to view the native VLAN.
In what switch mode should port G0/1 be assigned if Cisco best practices are being used?
trunk
What operational mode should be used on a switch port to connect it to a router for router-on-a-stick inter-VLAN routing?
trunk
A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?
trunk port
Under which two occasions should an administrator disable DTP while managing a local area network? (
when connecting a Cisco switch to a non-Cisco switch
