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CompTIA N+ N10-006 > STP > Flashcards

Flashcards in STP Deck (21)
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1

What are the basic functions of switch?

Filtering
Forwarding
Flooding
Blocking

2

What is STP?

Spanning Tree Protocol

3

Where does a Layer 2 loop occur?

When there a fault tolerant (parallel) links between switches

4

What does STP do?

Identifies parallel paths within a network and blocks one or more ports

5

What is the ROOT in STP?

The administrative Switch/Bridge

6

How does STP work?

ROOT Switch forwards on all ports BPDUs, servant devices than receive more than one BDPU will block a parallel port

7

What standards are associated with STP?

802.1d - STP
802.1w - Rapid STP

8

When would a switch block?

STP to prevent L2 loop

9

When would a switch flood?

When it has no entry for the L2 destination address

10

When would a switch filter?

When it knows the L2 source and destination address and will send it just that address on a VLAN

11

When would a switch forward?

When not in a blocking state

12

What is BPDU?

Bridge Protocol Data Unit

13

What would you use to manage a switch remotely?

VLAN Interface (L3)

14

What would you use to directly manage a switch?

Console port

15

What is a VTY (Virtual Terminal)?

Used when remotely connecting to a switch or router

16

What is a AAA Server?

Authentication, Authorisation and Accounting
Central management repository for logging into switches or routers

17

What protocols are used to communicate with a AAA server?

RADIUS - Open Source
TACACS+ - Cisco Proprietary
DIAMETER

18

What is in-band and out-of-band management?

Switch management traffic is on same network as users
Out-of-band segregates the data into a VLAN and a different subnet

19

What purpose does an ACL serve on a router's interface?

Access Control List can specify what information is allowed to be routed between VLANs

20

What is SPB?

Shortest Path Bridging

Eradicates STP and utilises all bandwidth

21

What standard is associated with SPB

802.1aq