Chapter 8 Flashcards
Implementing Ethernet Virtual LANS
- Which of the following port states are stable states used when STP has completed convergence? (Choose two answers.)
a) Blocking
b) Forwarding
c) Listening
d) Learning
e) Discarding
a) Blocking
b) Forwarding
Which of the following bridge IDs wins election as root, assuming that the switches with these bridge IDs are in the same network?
a) 32769:0200.1111.1111
b) 32769:0200.2222.2222
c) 4097:0200.1111.1111
d) 4097:0200.2222.2222
e)40961:0200.1111.1111
c) 4097:0200.1111.1111
Which of the following are transitory port states used only during the process of STP convergence? (Choose two answers.)
a) Blocking
b) Forwarding
c) Listening
d) Learning
e) Discarding
c) Listening
d) Learning
Which of the following facts determines how often a nonroot bridge or switch sends an STP Hello BPDU message?
a) The Hello timer as configured on that switch.
b) The Hello timer as configured on the root switch.
c) It is always every 2 seconds.
d) The switch reacts to BPDUs received from the root switch by sending another BPDU 2 seconds after receiving the root BPDU.
b) The Hello timer as configured on the root switch.
Which of the following RSTP port states have the same name and purpose as a port state in traditional STP? (Choose two answers.)
a) Blocking
b) Forwarding
c) Listening
d) Learning
e) Discarding
b) Forwarding
d) Learning
RSTP adds features beyond STP that enable ports to be used for a role if another port on the same switch fails. Which of the following statements correctly describe a port role that is waiting to take over for another port role? (Choose two answers.)
a) An alternate port waits to become a root port.
b) A backup port waits to become a root port.
c) An alternate port waits to become a designated port.
d) A backup port waits to become a designated port.
a) An alternate port waits to become a root port.
d) A backup port waits to become a designated port.
What STP/RSTP feature causes an interface to be placed in the forwarding state as soon as the interface is physically active?
a) STP
b) EtherChannel
c) Root Guard
d) PortFast
d) PortFast
Which optional STP feature reacts to a subset of incoming STP BPDUs to disable the port, but allows and processes some other STP BPDUs?
a) Loop Guard
b) BPDU Guard
c) Root Guard
d) PortFast
c) Root Guard
The most critical piece of information (for this discussion) in this tag is the VLAN ID.
802.1Q
What is 802.1Q?
A networking standard that defines a method for VLAN tagging in Ethernet frames
It allows multiple VLANs to exist on a single physical link.
What is an access interface?
A port on a switch configured to connect end devices to a single VLAN
Access interfaces typically do not carry traffic from multiple VLANs.
What is a data VLAN?
A VLAN used specifically for user data traffic
Data VLANs separate user data from other types of traffic such as management or voice.
What is the default VLAN?
The VLAN that is used by default for untagged traffic on a switch
On many switches, the default VLAN is VLAN 1.
What is a Layer 3 switch?
A switch that can perform routing functions in addition to switching
Layer 3 switches operate at the network layer and can route traffic between different VLANs.
What is a native VLAN?
The VLAN that is assigned to carry untagged frames on a trunk link
By default, the native VLAN is often set to VLAN 1, but it can be changed.
What is a static access interface?
An access port that is manually configured to belong to a specific VLAN
Unlike dynamic interfaces, static access interfaces do not change VLAN membership automatically.
What is a trunk?
A trunk is a communication line or link designed to carry multiple signals simultaneously, typically used in networking to connect switches.
What is a trunk interface?
A trunk interface is a network interface that is configured to carry traffic for multiple VLANs simultaneously.
What is trunking administrative mode?
Trunking administrative mode refers to the configuration setting that determines whether a port is set to operate as a trunk port or an access port.
What is trunking operational mode?
Trunking operational mode describes the current functioning state of a port, indicating whether it is actively passing trunked traffic.
What does VLAN stand for?
VLAN stands for Virtual Local Area Network.
What is a voice VLAN?
A voice VLAN is a dedicated VLAN specifically configured to prioritize voice traffic, ensuring quality of service for voice communications.
What does VTP stand for?
VTP stands for VLAN Trunking Protocol.
What is VTP transparent mode?
VTP transparent mode is a configuration mode in which a switch does not participate in VTP advertisements and can create, modify, or delete VLANs locally without affecting other switches.
