CompTIA A+ Core 1: Networking Fundamentals

Which statement are correct about TCP vs. UDP?

TCP uses a three-way handshake and acknowledgements

TCP is slower, but more reliable

UDP is faster, but less reliable

Which statement best describes the functionality of patch panel?

A device used to terminate network cables in a central location

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

It will be forwarded out every other port

A DSL modem operates over which physical medium?

Phone cabling

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

80

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

Extender

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

100

Which statement correctly applies to a stateful firewall?

A firewall capable of inspecting packets to intelligently determine context

Routers operate at which layer of the OSI model?

3 Network

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

Physical

Data Link

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

Modulating or demodulating signals

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

virtual machines