Consumul de date este mare.

Because -ul is the definite article attached to the end of the noun in Romanian.

• consum = consumption
• consumul = the consumption

So Consumul de date este mare literally means The data consumption is high / large.

Romanian often puts the definite article at the end of the noun instead of using a separate word like the in English.

Here, de means of.

So:

• consumul de date = the consumption of data

This is a very common Romanian structure:

• o cană de ceai = a cup of tea
• viteza de internet = internet speed
• consumul de energie = energy consumption

So de often links two nouns, much like of in English.

Yes. In Romanian, date means data.

It is the plural form of dată in some contexts, but in modern usage date is also the normal noun used for data, especially in technology, statistics, and computing.

For example:

• date mobile = mobile data
• bază de date = database
• transfer de date = data transfer

So in this sentence, date is absolutely the normal word.

Yes, adjectives do agree with nouns in Romanian, but mare already has the correct form here.

mare can be used for both masculine/neuter singular and feminine singular in the basic form:

• un consum mare = a high/large consumption
• o casă mare = a big house

Its plural form is:

• mari

So:

• singular: mare
• plural: mari

Since consumul is singular, mare is correct.

Consum is a neuter noun in Romanian.

Romanian neuter nouns behave like:

• masculine in the singular
• feminine in the plural

So:

• singular: un consum, consumul
• plural: două consumuri, consumurile

In this sentence, the noun is singular, so it behaves like a masculine singular noun.

Yes, but this is the most neutral and natural word order.

The standard order is:

• subject
  • verb
    • adjective/complement

So:

• Consumul de date = subject
• este = verb
• mare = complement

You could change the order for emphasis, but the basic sentence learners should use is:

• Consumul de date este mare.

That is the normal, straightforward way to say it.

Normally, no. In Romanian, in standard present-tense sentences like this one, you usually keep the verb a fi (to be).

So you say:

• Consumul de date este mare.

not normally:

• Consumul de date mare.

Romanian is different from Russian, for example, where the present-tense to be is often omitted. In Romanian, it is usually expressed.

A simple learner-friendly pronunciation guide would be:

kohn-SOO-mool deh DAH-teh ES-teh MAH-reh

A few tips:

• c in consumul sounds like k
• u is like oo in food
• e is usually like eh
• r in Romanian is usually a tapped or trilled r

Word by word:

• Consumul → kohn-SOO-mool
• de → deh
• date → DAH-teh
• este → ES-teh
• mare → MAH-reh

Literally, mare often means big or large, but in this sentence the natural English meaning is high.

So:

• Consumul de date este mare = Data consumption is high

Romanian often uses mare where English prefers high, especially with things like amounts, levels, or intensity.

So although the literal sense is large, the natural translation is high.

Yes, and it means something slightly different depending on context.

• Consumul de date = data consumption
  This focuses on how much data is being used.
• Traficul de date = data traffic
  This often refers more to the flow or transfer of data through a network.

In many tech contexts, both can appear, but they are not always identical. If you mean how much mobile/internet data someone is using, consumul de date is a very good choice.

If you want the indefinite noun, you would say:

• Un consum de date mare

But that is not usually a complete sentence by itself. It sounds more like a noun phrase:

• a high data consumption

To make a full sentence, you would typically say something like:

• Există un consum de date mare. = There is a high data consumption.

Still, in most everyday situations, the definite version:

• Consumul de date este mare.

sounds more natural and more idiomatic.