1. Which STP port role is adopted by a switch port if there is no other port with a lower cost to the root bridge?
a) Alternate port
b) Designated port
c) Disabled port
d) Root port
2. Which three components are combined to form a bridge ID? (Choose three.)
a) Bridge priority
b) Cost
c) Extended system ID
d) IP address
e) MAC address
f) Port ID
3. What additional information is contained in the 12-bit extended system ID of a BPDU?
a) IP address
b) MAC address
c) Port ID
d) VLAN ID
4. Which is the default STP operation mode on Cisco Catalyst switches?
a) MST
b) MSTP
c) PVST+
d) Rapid PVST+
e) RSTP
5. In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.)
a) Blocking
b) Disabled
c) Forwarding
d) Learning
e) Listening
6. Which STP priority configuration would ensure that a switch would always be the root switch?
a) spanning-tree vlan 50 priority 0
b) spanning-tree vlan 50 priority 4096
c) spanning-tree vlan 50 priority 61440
d) spanning-tree vlan 50 root primary
7. What value determines the root bridge when all switches connected by trunk links have default STP configurations?
a) Bridge priority
b) Extended system ID
c) MAC address
d) VLAN ID
8. Which Cisco switch feature ensures that configured switch edge ports do not cause Layer 2 loops if a port is mistakenly connected to another switch?
a) BPDU guard
b) Extended system ID
c) PortFast
d) PVST+
9. Which protocol provides up to 16 instances of RSTP, combines many VLANs with the same physical and logical topology into a common RSTP instance, and provides support for PortFast, BPDU guard, BPDU filter, root guard, and loop guard?
a) STP
b) Rapid PVST+
c) PVST+
d) MST
10. Which RSTP ports are connected to end devices?
a)Trunk Ports
b) Designated Ports
c)Root Ports
d) Edge Ports
