Chap_4 Quiz

Question 1

A ________ is an older attack that uses an illegally large IP packet to crash an operating system.

Answer 1

ping of death

Question 2

A network administrator notices extensive damage to wireless packets. This might indicate a ________ attack.

Answer 2

DoS flood attack

Question 3

An EAP message begins with an ________ message.

Answer 3

EAP start

Question 4

Attackers can exploit WEPs weaknesses by ________.

Answer 4

Both using WEP cracking software and reading two messages encrypted with the same key

Question 5

CTS frames tell other wireless clients that you want to transmit for a given amount of time.

Answer 5

False

Question 6

EAP uses RADIUS for authentication.

Answer 6

False

Question 7

Ensuring appropriate network ________ means preventing attackers from altering the capabilities or operation of the network.

Answer 7

functionality

Question 8

Firms still choose to use WPA in order to ________.

Answer 8

Both avoid configuration expenses for access points and avoid configuration expenses for wireless clients

Question 9

n 802.11i pre-shared key mode, the initial key is generated ________.

Answer 9

from a passphrase

Question 10

In 802.1X, the heavy authentication work is done on ________.

Answer 10

Neither authenticators nor clients

Question 11

In a smurf flood DoS attack, attackers can benefit from a multiplier effect because multiple ICMP requests are responded to by a single host… true or false?

Answer 11

false

Question 12

In a smurf flood DoS attack, attackers can benefit from a multiplier effect because a single ICMP request is responded to by multiple hosts… true or false?

Answer 12

false

Question 13

In pre-shared key mode, a passphrase should be at least ________ characters long?

Answer 13

20

Question 14

Listing your friend’s home in the local classifieds at a low price is equivalent to a ________.

Answer 14

P2P redirect

Question 15

Most central authentication servers are governed by the ________ standard.

Answer 15

RADIUS

Question 16

Open networks can be legally accessed by anyone and are frequently posted as such…. true or false?

Answer 16

false

Question 17

RC4 uses WEP for fast and therefore cheap encryption….. true or false?

Answer 17

false

Question 18

RTS frames tell other wireless clients that you want to transmit for a given amount of time…..true or false?

Answer 18

true

Question 19

To use an access point, you must know its SSID…..true or false?

Answer 19

true

Question 20

Using a shared initial key is dangerous in ________.

Answer 20

WEP

Question 21

WEP encrypts each frame with a per-frame key that consists of the shared RC4 key plus a 24-bit initialization vector that is different for each frame….true or false?

Answer 21

true

Question 22

What mistake did the 802.11i Working Group make when creating IVs?

Answer 22

making the IV too short (wep)

Question 23

In 802.11i pre-shared key mode, the initial key is generated

Answer 23

from a passphrase

Question 24

Each media access control (MAC) address has a network interface card (NIC). (T or F)

Answer 24

false

Question 25

EAP uses RADIUS for authentication…T or F?

Answer 25

false

Question 26

In 802.1X, the heavy authentication work is done on ________.?

Answer 26

neither authenticators or clients

Question 27

In a smurf flood DoS attack, attackers can benefit from a multiplier effect because a single ICMP request is responded to by multiple hosts T or F?

Answer 27

False

Question 28

In normal ARP traffic, generally an attacker on the same network cannot see traffic between two hosts.

Answer 28

true

Question 29

Similar to a direct attack, an indirect attack occurs when an attacker spoofs his/her IP address T or F?

Answer 29

true

Question 30

To use an access point, you must know its SSID?

Answer 30

True

Question 31

Using a shared initial key is dangerous in ?

Answer 31

WEP