Chapter 11 – Secure Network Architecture and Securing Network Components

Question 1

1. What is layer 4 of the OSI model?

Transport

Answer 1

Transport

Question 2

2. What is encapsulation?

Adding a header and footer to data as it moves down the OSI stack

Answer 2

Adding a header and footer to data as it moves down the OSI stack

Question 3

3. Which OSI model layer manages communications in simplex, half-duplex, and full –duplex modes?
   Session

Answer 3

Session

Question 4

4. Which of the following is the least resistant to EMI?

UTP

Answer 4

UTP

Question 5

5. Which of the following is not an example of network segmentation?
   VPN

Answer 5

VPN

Question 6

6. What is a field-powered technology that can be used for inventory management without requiring direct physical contact?
   RFID

Answer 6

RFID

Question 7

7. If you are victim of a bluejacking attack, what was compromised?
   Your cell phone

Answer 7

Your cell phone

Question 8

8. Which networking technology is based on the IEEE 802.3 standard?
   Ethernet

Answer 8

Ethernet

Question 9

9. What is a TCP wrapper?

An application that can serve as a basic firewall by restricting access based on user IDs or system IDs

Answer 9

An application that can serve as a basic firewall by restricting access based on user IDs or system IDs

Question 10

10. What is both a benefit and a potentially harmful implication of multilayer protocols?
    Encapsulation

Answer 10

Encapsulation