WiFi

Question 1

What can be used to centrally configure Wireless APs?

Answer 1

WLC - Wireless LAN Controller
Uses ESS (extended service set)

Question 2

What is an autonomous Wireless AP?

Answer 2

An AP that has to be configured manually and individually

Question 3

What is VLAN pooling?

Answer 3

Used in conjunction with a WLC

Allocates computers to different VLANs

Question 4

What does a wireless bridge do?

Answer 4

Extends the reach ability of a wireless network

Question 5

Which 2.4 GHz WiFi channels are non-overlapping?

Answer 5

1, 6, 11

Question 6

What are the types of antennae?

Answer 6

Omnidirectional

Unidirectional

Question 7

What it it called to analyse WiFi frequencies?

Answer 7

Heatmap

Question 8

Which wireless technologies support MIMO?

Answer 8

802. 11n 4 MIMO Streams

802. 11ac 8 MIMO Streams

Question 9

What is a problem with 802.11g

Answer 9

Although it is backwards compatible with 802.11b, it will operate at the slowest device connected to it

Question 10

What allows the AP and Switch to negotiate a speed and duplex?

Answer 10

Auto-Negotiation

Question 11

What are the two standards for PoE?

Answer 11

PoE - 802.3af (15W)

PoE+ - 802.3at (25W)

Question 12

What is 802.11i?

Answer 12

WPA2

Question 13

Which SNMP supports encryption?

Answer 13

SNMP v3