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WorksheetsSwitch Ports
Total questions: 25
Worksheet time: 13mins
Switch ports can be configured to allow traffic from multiple VLANs. These ports are called trunk ports or tagged ports. Which of these is NOT a key points about trunk ports.
The traffic on a trunk port is kept separate through identifying tags.
Each tag identifies the VLAN the packet came from.
The tags are placed in the header each time the packet reaches a new switch in the network.
This tagging system is labeled 802.1ax by the IEEE.
Link aggregation is incorporating multiple links together to act as a single port. Which of these does link aggregation FAIL to do:
Is designated 802.1AX by IEEE.
Decrease bandwidth to the cumulative total of each of the combined links. Costing money.
Typically uses Link Aggregation Protocol (LACP).
Creates a seamless redundancy if a link fails.
LACP works as follows:
Both ends of the connection need LACP enabled.
Both devices automatically combine the multiple links between them as a single logical link.
If one of the links fails, LACP automatically load balances without interruption of connectivity.
You can't configure active or passive mode.
LACP mode:
Is typically the preferred mode.
Puts the interface into an unconditional negotiating state.
Sends frames automatically.
Active
Passive
LACP mode:
Is the default mode.
Will respond only to received frames.
Will never initiate negotiations.
Active
Passive
Auto-negotiation is a default setting of Ethernet devices in which connected devices communicate to select the speed, duplex parameter, and flow control parameter for transmissions.
Duplex options are:
Full duplex
Half duplex
Auto-negotiation
Flow Control
Auto-negotiation speed options are all but:
10 Mbps
100 Mbps
1000 Mbps
1 Mbps
Flow control is a configuration that sends a pause frame to the transmitting devices when the receiving device cannot keep up with the volume of data being sent. Flow control does what?
Prevents packet loss
Adjust speeds
Allows to transmit and receive at the same time
Is an 802.1q IEEE standard
802.1q by IEEE is
Port Tagging
Link Aggregation Control Protocol (LACP)
Jumbo Frames
Flow Control
802.1AX by IEEE is
Port Tagging
Link Aggregation Control Protocol (LACP)
Jumbo Frames
Flow Control
802.3 by IEEE is
Port Tagging
Link Aggregation Control Protocol (LACP)
Jumbo Frames
Flow Control
802.3x by IEEE is
Port Tagging
Link Aggregation Control Protocol (LACP)
Jumbo Frames
Flow Control
Jumbo frames are Ethernet frames that exceed the IEEE 802.3 limit of a 1500 byte payload. They can carry a payload of up to 9000 bytes. Jumbo frames:
Create less chatter on the network because fewer frames are being sent.
Allows you to prioritize traffic such as VoIP or video over IP above data traffic.
Allows it so you can transmit data only when it is not receiving a transmission.
Allows it so you can send and receive transmissions at the same time.
This is a switch configuration used to monitor network traffic by copying all network packets from a selected port and sending them to another port for analysis. Monitoring network traffic gives you important information you can use for security and performance.
Port Mirroring
Port Security
Power over Ethernet
Spanning Tree Protocol
This offers a configuration called port security. Because switch ports are open to traffic by default, they are vulnerable.
It also provides protection by allowing you to limit the number of media access control (MAC) addresses that can be added to a MAC address table. You can configure a switch to build its MAC address table dynamically, statically, or both.
Port Mirroring
Port Security
Power over Ethernet
Spanning Tree Protocol
This refers to a cable that provides electrical power and Ethernet to a device. This eliminates the need for separate AC/DC power for network devices.
Port Mirroring
Port Security
Power over Ethernet
Spanning Tree Protocol
These are important to keep the network up and running. Redundant connections allow the network to continue without interruption in the event a connection goes down.
Port Mirroring
Port Security
Power over Ethernet
Spanning Tree Protocol
All of these EXCEPT for one are states that Ports in the Spanning Tree Protocol exist.
Blocking
Listening
Learning
Forwarding
Enabled
Port security with ______
MAC addresses are automatically added to the MAC address table using a security feature known as sticky MAC.
Addresses are added until the limit is reached.
An address drops from the table if it hasn't been used in a specified amount of time.
Dynamic looking
Static looking
Combination of dynamic and static looking
Port security with ______
You manually add each MAC address to the table.
MAC addresses don't time out.
Dynamic looking
Static looking
Combination of dynamic and static looking
Port security with ______
Some MAC addresses are added manually and don't time out.
The sticky MAC feature dynamically adds incoming MAC addresses until the table limit has been reached.
Dynamic looking
Static looking
Combination of dynamic and static looking
Violations occur when traffic comes from devices that are not listed in the table and the table is full.
In this mode:
Can be used only with the sticky MAC feature.
Drops frames.
Allows the interface to continue to function.
Makes no log entries.
Protection
Restrict
Shutdown
Violations occur when traffic comes from devices that are not listed in the table and the table is full.
In this mode:
Drops frames.
Allows the interface to continue to function.
Logs violations.
Sends security violation alerts.
Protection
Restrict
Shutdown
Violations occur when traffic comes from devices that are not listed in the table and the table is full.
In this mode:
Disables the port.
Sends security violation alerts.
Is the default violation mode.
Has the no shutdown command to allow the port to function again.
Protection
Restrict
Shutdown
The type of ports used by the Spanning Tree Protocol are EXCEPT for:
Root ports
Designated ports
Blocked ports
Disabled ports
