Important things to remember

Question 1

RIP AD and Letter

Answer 1

AD 120, R

Question 2

OSPF AD Letter

Answer 2

AD 110, O

Question 3

Static AD and Letter

Answer 3

AD 1, S

Question 4

Directly connected AD and Letter

Answer 4

AD 0, C

Question 5

Floating Static route

Answer 5

Route with artificially high AD, insuring its used as a last resort/back up

Question 6

Default console settings for emulators or Putty.

Answer 6

Bits/sec 9600, Data bits 8, Stop Bits 1 and no parity

Question 7

Command to save running config to start up config

Answer 7

copy running-config startup-config

Question 8

Hub broadcast/collision domains

Answer 8

1 of each.

Question 9

Switch broadcast/collision domains

Answer 9

1 broadcast domain until separated by a router. number of active interfaces = number of collision domains.

Question 10

RSTP port states

Answer 10

Discarding, Learning, Forwarding

Question 11

STP port states

Answer 11

Disabled, Blocking, Learning, Listening, Forwarding.

Question 12

STP port costs

Answer 12

FA = 19, GE = 4.

Question 13

802.1x

Answer 13

RADIUS

Question 14

DCE

Answer 14

Plugged into device that provides the clock.

Question 15

DTE

Answer 15

The side that isnt the side thats plugged into the clocking side.

Question 16

HLDC

Answer 16

DCE/DTE alternative to traditional L2 frames.

Question 17

3 types of roles that a router can have in OSPF

Answer 17

DR, BDR, DRother.

Question 18

what are the types of LSAs for OSPF?

Answer 18

Type 1 = only its local connections.

Type 2 = only generated by the DR, gives connections known on its network.

Question 19

Underlay

Answer 19

how a packet gets through the network. Interior Gateway Protocols such as IGP, OSPF, EIGRP, IS-IS and BGP.

Question 20

Overlay

Answer 20

Something on top of the Underlay IE: IPSEC/VPNs. so it can go through a network in a tunnel. can show something far away as 1 hop away.

Question 21

Fabric

Answer 21

An overlay on top of an underlay controlled by a controller.

Question 22

Data plane

Answer 22

How data is sent from 1 node to the next (infrastructure)

Question 23

Control plane

Answer 23

How data knows what the next hop is (like underlay)

Question 24

EIGRP AD and Letter

Answer 24

90 and D

Question 25

LLDP

Answer 25

CDP but industry standard

Question 26

Syslog Severity & level

Answer 26

Emus - Emergency 0

Are - Alert 1

Cute - Critical

Even - Error

When - Warning

Not - Notice

In - Informational

Disguise - Debug 7

Question 27

PoE+

Answer 27

802.3at

Question 28

PoE

Answer 28

802.3af

Question 29

Global IPV6

Answer 29

2000:: /3 (2000-3FFF)

Question 30

Multicast IPV6

Answer 30

FF00 /8

Question 31

Link local IPv6

Answer 31

1. FE80:: /10 First 10 (1111 1101 10)
2. take 64 bit mac, split it into 2, 32 bit halves
3. Put the mac in-between.
4. Flip the 7th bit.
5. Place the number from steps 2-4 right after FE80:

Question 32

Classification

Answer 32

Classifies based on almost anything/ (Port/Vlan/Source/anything)

Question 33

Marking

Answer 33

Like a shipping label, traverses network without opening packet.
Layer 2 CoS
Layer 3 ToS

Question 34

Policing

Answer 34

enforces rate limit by dropping down or marking the packets. can slow down traffic that you don’t like.

Question 35

Shaping

Answer 35

enforces rate limit by delaying the packets and store them in the router’s buffer for a certain amount of time.