11 - OSI and Security

Question 1

Which Transport layer protocol is best suited for streaming audio and video?

a) UDP
b) TCP
c) IP
d) HTTP

Answer 1

a) UDP

Note: It is connectionless and does not wait for verification of successful transmission before it sends more data, hence, resulting in quicker transmission speeds.

Question 2

A security analyst is testing the security of an organization’s website by placing a script directly into a search box. Which level of the OSI model is the analyst addressing?

Answer 2

Layer 7: Application

Question 3

OSI: Layer 1

Answer 3

Physical

Question 4

OSI: Layer 2

Answer 4

Data Link

Question 5

OSI: Layer 3

Answer 5

Network

Question 6

OSI: Layer 4

Answer 6

Transport

Question 7

OSI: Layer 5

Answer 7

Session

Question 8

OSI: Layer 6

Answer 8

Presentation

Question 9

OSI: Layer 7

Answer 9

Application

Question 10

What OSI layer does the following threat effect: SQL injection attack

Answer 10

7. Application

Question 11

What OSI layer does the following threat effect: Man-in-the-middle attack

Answer 11

6. Presentation

Question 12

What OSI layer does the following threat effect: RPC attack

Answer 12

5. Session

Question 13

What OSI layer does the following threat effect: Port scanner

Answer 13

4. Transport

Question 14

What OSI layer does the following threat effect: Ping sweep attack

Answer 14

3. Network

Question 15

What OSI layer does the following threat effect: VLAN hopping

Answer 15

2. Data Link

Question 16

What OSI layer does the following threat effect: Wiretapping

Answer 16

1. Physical