Network Implementations - Objective 2

Question 1

802.3ad

Answer 1

Link Aggregation

Combines multiple physical connections into a single logical one to minimize congestion

Question 2

802.3af max wattage

Answer 2

15.4 watts

Question 3

802.3at max wattage

Answer 3

25.5 watts

Question 4

802.1d

Answer 4

Spanning tree protocol

Question 5

802.1q

Answer 5

VLAN trunking

Question 6

How do IPSs & IDSs recognize attacks?

Answer 6

Through signatures & anomalies

Question 7

Content Engine/Caching Engine

Answer 7

Dedicated appliance that performs the caching functions of a proxy server

Question 8

Where is a Content Engine/Caching Engine highly beneficial?

Answer 8

A remote branch office with a slow WAN link

Question 9

What is a content switch also known as?

Answer 9

A load balancer

Question 10

ICS

Answer 10

Industrial Control System

Describes the different types of control systems & associated instrumentation

Question 11

SCADA

Answer 11

Supervisory control, and data acquisition

Acquires and transmits data from different systems to central panel for monitoring and control

Question 12

The 2 routing loop prevention methods

Answer 12

• Split horizon
• Poison reverse

Question 13

Number of non-overlapping 20 MHz channels in the 5 GHz band

Answer 13

24 channels

Question 14

Two protocols associated with WPA

Answer 14

TKIP & RC4

Question 15

Two protocols associated with WPA2

Answer 15

CCMP & AES

Question 16

Geofencing

Answer 16

Uses GPS or RFID to define real-world boundaries where barriers can be active or passive

Question 17

How to crack WEP

Answer 17

Capture enough initialization vectors (IV)

[using something like Aircrack-ng]

Question 18

Type of vector used by WPA

Answer 18

TKIP

Question 19

CSMA/CA is used in what kind of network?

Answer 19

Wireless network

Question 20

CSMA/CD is used in what kind of network?

Answer 20

Wired network

Question 21

Type of encryption used by WPA

Answer 21

RC4 (Rivest Cipher 4)

Question 22

WPA2 integrity checking protocol

Answer 22

CCMP
(Counter mode cipher block chaining message authentication code protocol)

Question 23

WPA2 encryption protocol

Answer 23

AES
(Advanced Encryption Security)