review

Question 1

What is cryptography?

Answer 1

The study of obsfucation

Question 2

what is DES?

Answer 2

DES - Data Encryption Standard is a 56 bit symmetrical key algorithm. Relatively insecure due to short 56 bit key length. Used in WEP largely replaced by more secure AES encryption.

Question 3

IDS vs IPS

Answer 3

IDS lets you know when something happens

IPS can prevent threats from happening

Question 4

What was one of the first web encryptions?

Answer 4

SSL

Question 5

when did SSL come out?

Answer 5

1995

Question 6

If you want a virus to run in the background where would you put it?

Answer 6

memory

Question 7

Do routers fragment packets ipv4? ipv6?

Answer 7

ipv4 yes, ipv6 no

Question 8

whats the difference between ping and traceroute

Answer 8

Ping checks a connection, traceroute tracks all hops

Question 9

Where are buffers located?

Answer 9

Data sections, heaps, or stacks

Question 10

how many bytes is a traceroute packet?

Answer 10

32

Question 11

What type of barcode is on your CAC? front and back

Answer 11

front: PDF14
Back: code 39

Question 12

what is data sanitation?

Answer 12

SQL injection protection

Question 13

Trojan v spyware v worm

Answer 13

trojan: cloak and dagger
spyware: sends info to an outside
worm: self replication, no interaction

Question 14

What is a single point firewall?

Answer 14

a funnel for all traffic located outside of the router separating your router and the internet

Question 15

know your routing header

Question 16

what protocol is used to find near by networks?

Answer 16

Neighbor discovery protocol (IPv6)

Question 17

How many bytes make up shell code?

Answer 17

25

Question 18

Where is the first place your computer looks for a DNS query?

Answer 18

Cache

Question 19

What does a hybrid firewall do?

Answer 19

Multiple firewalls with different functions, that way every part of the network is examined

Question 20

types of IDS

Answer 20

HIDS - Host-Based Intrusion Detection System
PIDS - Perimeter Intrusion Detection System
VMIDS - Virtual Machine Based Intrusion Detection System
NIDS - Network Intrusion Detection System

Question 21

whats the difference between telnet and ssh?

Answer 21

telnet is plaintext, ssh is encrypted

Question 22

Whats the default amount of packets sent on a ping?

Answer 22

4

Question 23

where would an IDS be located?

Answer 23

behind the firewall

Question 24

When youre able to give yourself privileges on a system -

Answer 24

broken authentication

Question 25

what is dynamic packet filtering?

Answer 25

considers the contents of the packet as it comes through

Question 26

is dynamic packet filtering stateful or stateless?

Answer 26

stateful

Question 27

3 types of DNS queries?

Answer 27

recursive, non recursive, iterative

Question 28

What DNS query travels upstream?

Answer 28

recursive

Question 29

what is stateless packet filtering?

Answer 29

based off destination and source, doesnt care about contents

Question 30

In netscan, what is -T0 vs -T5?

Answer 30

-T0 is harder to see but takes longer, -T5 is fastest but easier for the host to detect.

Question 31

what is the GA law for computer trespassing?

Answer 31

OCGA 16-9 93b

Question 32

IPv6 multicast address

Answer 32

ff00::/8

Question 33

what is the belt and suspenders architecture?

Answer 33

two firewalls, one after the router, and one after your public facing servers