____ is used to resolve Data Link Layer addresses to Network addresses, whereas _____ is used to resolve Application Layer addresses to Network addresses?

	a.	DNS / ARP
	b.	ARP / DHCP
	c.	DHCP / DNS
	d.	ARP / DNS
	e.	IP / TCP

What is the main reason for adhering to Network Standards?

	a.	Often times, the sender and receiver of information are unrelated and on different networks.
	b.	Often times, the sender and the receiver of information are related and on the same network.
	c.	Standards are legally required in most countries in order to do business with other companies.
	d.	Standards make network security simpler to deal with and less of an issue.
	e.	There is no compelling reason for a company to adhere to networking standards.

How did the evolution of early communication methods intomodern electronic networking and The Internet enhance the value of data?

	a.	By putting the sender and receiver of the data closer together in terms of time.
	b.	Data is now easier to keep private.
	c.	Data is now harder to find because of laws that govern the Internetso companies can make money from this.
	d.	Data is no longer considered valuable.
	e.	Modern Networking will never replace traditional information gathering and dissemenation.

The primary advantage of Multicast over Unicast is....

	a.	It is better for Wireless Networks.
	b.	It is more commonly available in apps than Unicast.
	c.	It uses TCP rather than UDP.
	d.	Less network traffic, i.e. it is more efficient.
	e.	It is more secure than Unicast.

In ARQ, an ACK:

	a.	is not used on half-duplex networks like 10-Base-T Ethernet.
	b.	is sent by the recipient if the message contained an error. "ACK!we have a problem!"
	c.	is not necessary onfiber optic networks because errors never occur.
	d.	is sent by the sender with every packet as a control message regardless of errors.
	e.	is sent by the recipient back to the sender if the message was received with no error.

This organization is a coordinating and certification group made up of several other engineering standards organizations and serves as an accreditationentity for standards developing bodies.

	a.	IEEE
	b.	IETF
	c.	ANSI
	d.	ISO
	e.	ASCII

The destination TCP port number identifier helps totell the receiving host_____________.

	a.	that it is not the destination, but the journey that matters.
	b.	the priority of the information.Lower numbers mean a higher priority.
	c.	which process, application or service that this message is related to.
	d.	where the segment came from.
	e.	whether or not an error occured in the transmission.

What is the most popular choice for media type in a business LAN environment using thick-client architecture

	a.	Multiplexed
	b.	Coax
	c.	Wireless
	d.	Fiber Optic
	e.	Twisted Pair