First Questions

Question 1

PSK Prevents the use of weak keys

Answer 1

False

Question 2

How many host addresses are available for this network?

10. 5.4.0
11. 255.255.254

Answer 2

N/A

Question 3

Which of the following is not one of the three major security planning principles?

Answer 3

Defense in Depth

Question 4

Which is not a part of AAA

Answer 4

N/A

Question 5

A benefit of using firewalls is that it eliminates the need to harden each host and therefore saves money.

Answer 5

False

Question 6

To allow a connection from an internal host to one or more external hosts requires an ACL rule if a stateful firewall is used.

Answer 6

N/A

Question 7

What is 128.171.13.12:234?

Answer 7

A socket

Question 8

A/an _______ specifies a particular application on a particular host.

Answer 8

A Port Number

Question 9

A mask has how many bits?

Answer 9

32

Question 10

A router must use the ARP process when?

Answer 10

Whenever it forwards an IP packet to a host that is not in its ARP cache

Question 11

A router will discard a packet if the TTL value reaches ______

Answer 11

0 (Zero)

Question 12

A routing table has 34,569 rows. Rows 12,921 and 26,731 match the destination IP address in an incoming packet. How many rows must the router check for matches?

Answer 12

34,569 (Has to go through ALL rows)

Question 13

A TCP ________ segment is a request to open a connection.

Answer 13

SYN

Question 14

A Windows host sends a TCP segment with a source port number of 1200 and a destination port of 80. What is the sending host?

Answer 14

A Webserver

Question 15

Consider the client computer message (put onto the network) of: “Hello Host 10.19.8.12, What is your 48-Bit MAC Address?”. What protocol is the computer using?

Answer 15

ARP

Question 16

Consider the client computer message (put onto the network) of: “My 48-bit Ethernet address is the following …-…-..-.. please give me a 32-bit address” Which protocol is the computer using?

Answer 16

DHCP

Question 17

Consider the dotted decimal mask of 255.255.0.0 how many 1s are there in the binary equivalent?

Answer 17

16

Question 18

DHCP sends a PC what a or an _____?

Answer 18

An IP Address and a Subnet Mask

Question 19

For a given volume of traffic, which is/are more expensive?

Answer 19

N/A

Question 20

Four-way closes use ______ segments.

Answer 20

N/A

Question 21

Routers use dynamic routing protocols to constantly talk to each other, sharing routing information. What sort of routing information is exchanged? (All that apply)

Answer 21

Masks
IP Addresses
Metric Values

Question 22

Routers are normally connected in a _______ Topology

Answer 22

N/A

Question 23

Routing decisions are done on a combination of what matches?

Answer 23

Biggest Prefix and Lowest Metric

Question 24

The internet control message control protocol is the internet layer supervisory protocol. What diagnostic tool takes advantage of it?

Answer 24

N/A

Question 25

What is the main benefit of IPv6 ID?

Answer 25

The ability to support more hosts

Question 26

The network part of an IP address is how many bits long?

Answer 26

N/A

Question 27

What is the main version of internet protocol?

Answer 27

IPv4

Question 28

To deliver an arriving packet to a destination host on a subnet connected to a router the router needs what?

Answer 28

N/A

Question 29

To see whether a target host can be reached you would send it an ICMP _______ message.

Answer 29

N/A

Question 30

What does a router do with an ARP message?

Answer 30

N/A

Question 31

What may drive the adoption of IPv6?

Answer 31

A growing number of hosts in other countries (India and China). And a growing number of hosts in general.

Question 32

Which of the segments is not acknowledged?

Answer 32

N/A

Question 33

Core security standards provide security between the wireless station and the wireless access point. Match the various ones below.

Answer 33

``` Crack in 5 minutes = WEP Has been cracked in this course = WPA 802.11i = ? 802.11x = ? 802.11__ = ? ```

Question 34

How many frames in a one way transmission between a wireless client on a server to a ethernet computer?

Answer 34

N/A

Question 35

How long does it take to crack WEP today with the software that is available?

Answer 35

A few minutes

Question 36

If a radio transmission is blocked by obstacles you need to maintain what?

Answer 36

A clear line of sight

Question 37

In ______ when a wireless host wishes to send it uses CSMA/CA+ACK

Answer 37

N/A

Question 38

What secures communication between the wireless computer and the server (or a point near the server)?

Answer 38

VPNs

Question 39

PSK mode uses authentication servers

Answer 39

FALSE

Question 40

Why is IPv6 being used?

Answer 40

N/A

Question 41

How many bits long is an IPv6 address?

Answer 41

128 bits

Question 42

`If a user has the password 'Tiger' what is the best way to crack it?

Answer 42

Dictionary attack

Question 43

If you have already entered into a system and want to get back in, what do you leave?

Answer 43

a Backdoor

Question 44

Collecting and logging information about what employees do when they use a system is called what?

Answer 44

N/A

Question 45

Someone dressed up as a person from Amour-guard and walked into a bank. They proceeded to get the cashier to give them the money meant for the actual Amour-guard and walked out. In networking terms what is this called?

Answer 45

Social Engineering

Question 46

DOS attacks are on what?

Answer 46

N/A

Question 47

Exploit programs that can be remotely controlled by an attacker are called what?

Answer 47

BOTS

Question 48

Passwords should be at least how many characters long?

Answer 48

8 Characters

Question 49

Pieces of code programs that are executed after the virus or worm has spread are called what?

Answer 49

Payloads

Question 50

Programs that hackers use to break into computers are called what?

Answer 50

Exploits

Question 51

Programs that pretend to be system files are called what?

Answer 51

Trojan Horses

Question 52

Requiring identity is what?

Answer 52

Authentication

Question 53

What is it called when you set up hosts to protect themselves?

Answer 53

Host Hardening

Question 54

What is the default behavior of a stateful firewall regarding connection opening?

Answer 54

N/A

Question 55

What is the name for malware on a PC that collects and sends information to an attacker?

Answer 55

N/A

Question 56

Password '245fd' is best hacked by what sort of attack?

Answer 56

A Brute Force

Question 57

Password 'Security7' is best hacked by what sort of attack?

Answer 57

A Hybrid Mode Dictionary Attack

Question 58

Tricking users into doing something that they shouldn't be is called what?

Answer 58

Social Engineering

Question 59

Vulnerabilities are found. What needs to happen?

Answer 59

Defense in Depth

Question 60

When a packet is not part of an ongoing connection and that does not attempt to open a connection arrives at a stateful inspection firewall what happens?

Answer 60

The firewall drops the packet

Question 61

If a packet passes without a filter what happens?

Answer 61

The Stateful firewall acknowledges the packet

Question 62

What is a rapidly spreading attack called?

Answer 62

A Worm

Question 63

Is this a valid subnet mask: 255.255.0.0?

Answer 63

YES

Question 64

What is the result of this IP and mask after a router has received them: IP - 192.168.3.4 Mask - 255.255.0.0

Answer 64

IP turns into 192.168.3.0 | Mask turns into N/A