Module 3

Question 1

Over which port does the hyper-text transfer protocol (HTTP) operate?

Answer 1

80

Question 2

Which statements are correct about TCP vs. UDP?

Answer 2

TCP is slower, but more reliable
UDP is faster, but less reliable
TCP uses a three-way handshake and acknowledgments

Question 3

Routers operate at which layer of the OSI model?

Answer 3

Routers operate at OSI Level 3, which is the network layer, where you would find IP addresses.

Question 4

Which type of wireless networking device creates a new SSID in addition to the original?

Answer 4

Extender

Question 5

Which statement best describes the functionality of a patch panel?

Answer 5

A device used to terminate network cables in a central location.

Question 6

Which statement correctly applies to a stateful firewall?

Answer 6

A firewall capable of inspecting packets to intelligently determine context.

Question 7

What is the maximum wattage that can be supplied to a device using Power over Ethernet?

Answer 7

100

Question 8

Which statement correctly identifies what will happen to a packet that enters a hub?

Answer 8

It will be forwarded out every other port.

Question 9

A DSL modem operates over which physical medium?

Answer 9

Phone cabling

Question 10

Which action or operation is not performed by an optical network terminal (ONT)?

Answer 10

Modulating or demodulating signals

Question 11

At which layers of the OSI model do network interface cards operate?

Answer 11

Data link - 2
Physical - 1

Question 12

Software defined networking is conceptually similar to which other type of computing architecture?

Answer 12

Virtual machines