CCNP SWITCH 2 STP EXAM QUESTIONS WITH CORRECT ANSWERS |NEW UPDATE 100%
VERIFIED BY EXPERTS
What are the two types of BPDUs? Configuration BPDU
TCN BPDU
What does the BID consist of? The bridge priority + mac
BPDUs sent out every _ seconds Two
STP cost for 10,100,1g,10g 100,19,4,2
When a switch receives a BPDU and adds it's path cost, is it done when BPDU received or sent?
Received
The ____ delay determines length of time for listening/learning Forward
Max age timer How long the switch holds a BPDU.
10x hello, 20sec
When does an STP topology change occur? When a port moves to forwarding or from
forwarding/learning to blocking
Ie whenever a switch comes up or down (except for portfast ports)
First thing a switch does during a topology change Send TCN BPDU out root port every hello,
until upstream neighbor sends acknowledgement
, When the root bridge sends a configuration BPDU with TCN set, what does it cause the
switches to do? Shorten MAC address table aging to forward value
A single instance of STP that encompasses all vlans CST
What type of trunk encapsulation does pvst require? ISL (due to the proprietary nature)
Which type of STP supports 802.1q and CST/pvst? Pvst+
T/F if switch cannot support 1024 mac addresses, extended system ID is enabled by default
True
Default bridge priority 32768
Two commands to configure root (Config)#span vlan # root (pri/sec)
Span vlan # priority #
Root primary and root secondary values Primary = lower than current root or 24576
Secondary = 28672
Can you configure an STP priority of 0? Yes
What is a port ID made up of? Priority.number
What is the default port priority value, and what is the range? 128, 0-255
Default STP diameter 7
VERIFIED BY EXPERTS
What are the two types of BPDUs? Configuration BPDU
TCN BPDU
What does the BID consist of? The bridge priority + mac
BPDUs sent out every _ seconds Two
STP cost for 10,100,1g,10g 100,19,4,2
When a switch receives a BPDU and adds it's path cost, is it done when BPDU received or sent?
Received
The ____ delay determines length of time for listening/learning Forward
Max age timer How long the switch holds a BPDU.
10x hello, 20sec
When does an STP topology change occur? When a port moves to forwarding or from
forwarding/learning to blocking
Ie whenever a switch comes up or down (except for portfast ports)
First thing a switch does during a topology change Send TCN BPDU out root port every hello,
until upstream neighbor sends acknowledgement
, When the root bridge sends a configuration BPDU with TCN set, what does it cause the
switches to do? Shorten MAC address table aging to forward value
A single instance of STP that encompasses all vlans CST
What type of trunk encapsulation does pvst require? ISL (due to the proprietary nature)
Which type of STP supports 802.1q and CST/pvst? Pvst+
T/F if switch cannot support 1024 mac addresses, extended system ID is enabled by default
True
Default bridge priority 32768
Two commands to configure root (Config)#span vlan # root (pri/sec)
Span vlan # priority #
Root primary and root secondary values Primary = lower than current root or 24576
Secondary = 28672
Can you configure an STP priority of 0? Yes
What is a port ID made up of? Priority.number
What is the default port priority value, and what is the range? 128, 0-255
Default STP diameter 7
