19 - Rapid STP

Question 1

Configure a switchport as an RSTP edge port:
SW1(config-if)# […]

Answer 1

spanning-tree portfast

Question 2

Configure a switchport as an RSTP point-to-point port:
SW1(config-if)# […]

Answer 2

spanning-tree link-type point-to-point

Question 3

Configure a switchport as an RSTP shared port:
SW1(config-if)# […]

Answer 3

spanning-tree link-type shared

Question 4

Enable rapid PVST mode on the switch:
SW1(config)# […]

Answer 4

spanning-tree mode rapid-pvst

Question 5

In RSTP, a switch considers a neighbor lost if it misses […] BPDUs.

Answer 5

3

Question 6

In RSTP, which switch(es) originate BPDUs?

Answer 6

All switches

Question 7

Is RSTP compatible with classic STP?

Answer 7

Yes (the interface connected to the switch running classic STP will run in classic STP mode)

Question 8

Multiple STP is IEEE […]

Answer 8

802.1s

Question 9

Rapid STP is IEEE […]

Answer 9

802.1w

Question 10

RSTP […] link type is used for full-duplex connections.

Answer 10

point-to-point

Question 11

RSTP […] link type is used for half-duplex connections.

Answer 11

shared

Question 12

RSTP Port Cost
1 Gbps = […]

Answer 12

20,000

Question 13

RSTP Port Cost
1 Tbps = […]

Answer 13

20

Question 14

RSTP Port Cost
10 Gbps = […]

Answer 14

2,000

Question 15

RSTP Port Cost
10 Mbps = […]

Answer 15

2,000,000

Question 16

RSTP Port Cost
10 Tbps = […]

Answer 16

2

Question 17

RSTP Port Cost
100 Gbps = […]

Answer 17

200

Question 18

RSTP Port Cost
100 Mbps = […]

Answer 18

200,000

Question 19

RSTP Port Cost
[…] = 2

Answer 19

10 Tbps

Question 20

RSTP Port Cost
[…] = 2,000

Answer 20

10 Gbps

Question 21

RSTP Port Cost
[…] = 2,000,000

Answer 21

10 Mbps

Question 22

RSTP Port Cost
[…] = 20

Answer 22

1 Tbps

Question 23

RSTP Port Cost
[…] = 20,000

Answer 23

1 Gbps

Question 24

RSTP Port Cost
[…] = 200

Answer 24

100 Gbps

Question 25

RSTP Port Cost
[…] = 200,000

Answer 25

100 Mbps

Question 26

The RSTP […] port role functions as a backup to a designated port.

Answer 26

backup

Question 27

The RSTP […] port role functions as a backup to the root port.

Answer 27

alternate

Question 28

The RSTP […] port role is a discarding port that receives a superior BPDU from another switch.

Answer 28

alternate

Question 29

The RSTP […] port role is a discarding port that receives a superior BPDU from the same switch.

Answer 29

backup

Question 30

What are the four RSTP port roles?

Answer 30

Root
Designated
Alternate
Backup

Question 31

What are the three RSTP link types?

Answer 31

Edge
Point-to-point
Shared

Question 32

What are the three RSTP port states?

Answer 32

Discarding
Learning
Forwarding

Question 33

What is Cisco’s upgrade to 802.1D?

Answer 33

PVST+

Question 34

What is Cisco’s upgrade to 802.1w?

Answer 34

Rapid PVST+

Question 35

What is the protocol version identifier in a classic STP BPDU?

Answer 35

0

Question 36

What is the protocol version identifier in a rapid STP BPDU?

Answer 36

2

Question 37

Which STP optional features were built in to RSTP to allow ports to move directly to a forwarding state (in certain circumstances)?
[…]
BackboneFast
PortFast

Answer 37

UplinkFast

Question 38

Which STP optional features were built in to RSTP to allow ports to move directly to a forwarding state (in certain circumstances)?
UplinkFast
[…]
PortFast

Answer 38

BackboneFast

Question 39

Which STP optional features were built in to RSTP to allow ports to move directly to a forwarding state (in certain circumstances)?
UplinkFast
BackboneFast
[…]

Answer 39

PortFast