Podcast
Questions and Answers
You are configuring a Cisco router in CLI mode and are currently in privileged exec mode. What command do you have to issue to go back to User exec mode?
You are configuring a Cisco router in CLI mode and are currently in privileged exec mode. What command do you have to issue to go back to User exec mode?
- `Router#quit all`
- `Router#enable`
- `Router#config t`
- `Router#disable` (correct)
Which command on a Cisco router will display the configurable parameters and statistics of all communication interfaces?
Which command on a Cisco router will display the configurable parameters and statistics of all communication interfaces?
- `show running-config`
- `show versions`
- `show interfaces` (correct)
- `show startup-config`
Which device connects different networks?
Which device connects different networks?
- Hub
- Router (correct)
- Switch
- Repeater
You want to execute the enable command to switch from user exec mode to privileged exec mode. What is the default router prompt displayed on the screen at this point?
You want to execute the enable command to switch from user exec mode to privileged exec mode. What is the default router prompt displayed on the screen at this point?
What is true regarding network layer addressing?
What is true regarding network layer addressing?
You have not created any VLAN's on a new switch. How many VLAN's will be displayed by issuing the show vlan brief command to the switch?
You have not created any VLAN's on a new switch. How many VLAN's will be displayed by issuing the show vlan brief command to the switch?
Which of the following switch ports can carry multiple VLAN traffic?
Which of the following switch ports can carry multiple VLAN traffic?
Which of the following commands can be used to determine the current IP addressing, and Layer 1 and Layer 2 status of an interface in a router?
show controllersshow versionsshow ip interfaceshow protocols
Which of the following commands can be used to determine the current IP addressing, and Layer 1 and Layer 2 status of an interface in a router?
show controllersshow versionsshow ip interfaceshow protocols
Which statement is true in connection with the User Exec mode?
Which statement is true in connection with the User Exec mode?
What is true about CDP (Cisco Discovery Protocol)?
What is true about CDP (Cisco Discovery Protocol)?
Which of the following devices is used to segment a LAN for better efficiency?
Which of the following devices is used to segment a LAN for better efficiency?
What is used to identify a VLAN on network switches?
What is used to identify a VLAN on network switches?
You are asked to configure the IP address to the serial 0/0 interface of the router. In which configuration mode do you need to issue the command to configure the IP address to the serial interface?
You are asked to configure the IP address to the serial 0/0 interface of the router. In which configuration mode do you need to issue the command to configure the IP address to the serial interface?
You want to set some informative messages for administrators when the router boots up. What command will you issue?
You want to set some informative messages for administrators when the router boots up. What command will you issue?
Which of the following is an address range from the private IP addresses?
Which of the following is an address range from the private IP addresses?
Which of the following network devices work at the data link layer of the OSI Model?
Which of the following network devices work at the data link layer of the OSI Model?
Which two actions could be taken by a router if a specific match is not made to a route in the routing table?
Which two actions could be taken by a router if a specific match is not made to a route in the routing table?
Which two functions of the OSI model occur at layer two?
Which two functions of the OSI model occur at layer two?
Which of the following is true about the function of the router?
Which of the following is true about the function of the router?
Which of the following commands will disable CDP on an interface?
Which of the following commands will disable CDP on an interface?
Flashcards
What command returns to user exec mode?
What command returns to user exec mode?
Returns to user exec mode from privileged exec mode.
What does 'show interfaces' do?
What does 'show interfaces' do?
Displays configurable parameters and statistics for all communication interfaces on a Cisco router.
What does a router do?
What does a router do?
Connects different networks.
What is the '>' symbol?
What is the '>' symbol?
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Network layer addressing
Network layer addressing
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Default VLANs on a new switch
Default VLANs on a new switch
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Trunk port function
Trunk port function
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What does the > symbol mean?
What does the > symbol mean?
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Device for LAN Segmentation
Device for LAN Segmentation
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How is a VLAN identified?
How is a VLAN identified?
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Configuring an IP address.
Configuring an IP address.
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OSI Model Data Link Devices
OSI Model Data Link Devices
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Command for informative messages
Command for informative messages
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Default route behavior
Default route behavior
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Switches.
Switches.
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OSI Model
OSI Model
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Disable CDP on an interface?
Disable CDP on an interface?
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Default switch port
Default switch port
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Study Notes
- To return to User EXEC mode from privileged EXEC mode issue the command
disable show interfacesdisplays configurable parameters and statistics for communication interfaces on a Cisco router- Routers connect different networks
- Type
enableto switch from user EXEC mode to privileged EXEC mode - Prompt displayed is
>in user EXEC mode - Network layer addressing is hierarchical
- When no VLANs are created on a new switch, the
show vlan briefcommand will show one VLAN - Trunk ports can carry multiple VLAN traffic
- The IP addressing, Layer 1, and Layer 2 status of an interface in a router shows using:
show ip interfaceshow protocolsshow interfaces
User Exec Mode
- Symbol
>means you are in User EXEC mode - In User EXEC mode you can send a ping request to a remote IP host
VLANs
- Switches are used to segment a LAN for better efficiency
- Identified on network switches by a VLAN number
Interface Configuration
- To configure the IP address on a router’s serial 0/0 interface, use the command within interface configuration mode
Router Bootup
- The
banner motdcommand sets informative messages displayed when a router boots up
Private IP address ranges are:
- 10.0.0.0 to 10.255.255.255
- Ethernet switches forward data based on the destination address
Data Link Layer
- Bridges and switches function at the data link layer of the OSI model
Routing Failure
- When a specific match isn't made, the router forwards the packet to a default route if one is present or drops the packet
At layer two:
- Physical addressing and media access control occur
Routing vs Switching:
- Switching sends IP packets across networks using the best path
- Routers connect IP networks, act as a traffic cop to filter traffic based on destination IP address
- Routers create multiple collision domains and broadcast domains
Hardware
- The network functions at the router work at the layer of electricity
Commands to Disable CDP on an Interface
Router(config-if)#no cdp enabledisables CDP on an interface
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