क्या यहाँ नेटवर्क कवरेज मज़बूत है?

At the beginning of a sentence, क्या usually marks a yes/no question.

So:

• क्या यहाँ नेटवर्क कवरेज मज़बूत है? = Is the network coverage strong here?

This is different from क्या meaning what in other contexts. For example:

• यह क्या है? = What is this?

So in your sentence, क्या does not mean what. It is just signaling that the whole sentence is a yes/no question.

In Hindi, the verb to be often comes at the end of the sentence.

So the structure is roughly:

• क्या = question marker
• यहाँ = here
• नेटवर्क कवरेज = network coverage
• मज़बूत = strong
• है = is

A very literal order would be something like:

• Is here network coverage strong?

That sounds odd in English, but it is normal in Hindi. Hindi often puts the verb last.

यहाँ means here, and in Hindi, words showing place often come before the thing being discussed.

So:

• यहाँ नेटवर्क कवरेज मज़बूत है
  literally feels like
• Here network coverage is strong

This is normal Hindi word order. You could also hear slightly different arrangements in real speech, but this version is perfectly natural.

Hindi very often uses loanwords from English, especially for technology, phones, internet, business, and modern life.

So:

• नेटवर्क = network
• कवरेज = coverage

These are English words, but written in the Hindi script. This is extremely common and sounds natural.

A learner should get used to this, because modern Hindi mixes many English-origin words, especially in everyday speech.

Yes, it is understandable and acceptable. मज़बूत means strong, solid, or robust.

So नेटवर्क कवरेज मज़बूत है means the coverage is strong.

That said, in everyday speech, many speakers might also say things like:

• क्या यहाँ सिग्नल अच्छा है? = Is the signal good here?
• क्या यहाँ नेटवर्क अच्छा है? = Is the network good here?
• यहाँ नेटवर्क ठीक है? = Is the network okay here?

So your sentence is fine, but depending on the speaker, अच्छा, ठीक, or सिग्नल may sound even more conversational.

No. मज़बूत is an adjective that usually stays the same form.

So you do not need to change it the way you would with adjectives like:

• बड़ा / बड़ी / बड़े

Instead, मज़बूत stays मज़बूत.

That means you can say:

• नेटवर्क मज़बूत है
• सर्विस मज़बूत है
• दीवार मज़बूत है

The adjective form remains the same.

Yes, especially in conversation.

You can say:

• यहाँ नेटवर्क कवरेज मज़बूत है?

With questioning intonation, it can still mean:

• Is the network coverage strong here?

However, adding क्या makes the sentence more clearly and explicitly a yes/no question, especially in writing or careful speech.

So:

• क्या यहाँ नेटवर्क कवरेज मज़बूत है? = clearer, more standard as a question
• यहाँ नेटवर्क कवरेज मज़बूत है? = possible in speech, more dependent on intonation

यहाँ is usually pronounced roughly like yuh-HAAN, with a nasalized final vowel.

A more careful transliteration is:

• yahā̃

A few helpful points:

• The य gives a y sound.
• The ह is pronounced.
• The final vowel is nasalized because of ँ.

Many learners first say it as plain yahaa, but the nasal sound is part of the normal pronunciation.

मज़बूत is pronounced roughly muz-BOOT or maz-BOOT, depending on accent and speaker.

The dot under ज़ is called a nukta. It changes the sound from ज to a z-like sound:

• ज = j
• ज़ = z

So मज़बूत is commonly pronounced with a z sound.

You may also see मजबूत written without the dot. In modern Hindi, both spellings are common, and many speakers pronounce them very similarly.

It is fairly neutral and perfectly usable.

It does not sound extremely formal, but it is a bit more careful than very casual speech. In everyday conversation, people might simplify it to something like:

• यहाँ सिग्नल अच्छा है?
• यहाँ नेटवर्क कैसा है?
• यहाँ नेटवर्क आता है?

But क्या यहाँ नेटवर्क कवरेज मज़बूत है? is still a good, clear sentence, especially if you want to ask specifically about coverage strength.

Yes.

• क्या यहाँ नेटवर्क कवरेज मज़बूत है?
• क्या यहाँ पर नेटवर्क कवरेज मज़बूत है?

Both are correct.

The version with पर can sound a little more explicit, but very often पर is unnecessary and native speakers simply say यहाँ.

So in this sentence, यहाँ alone is natural and efficient.

Here is a simple breakdown:

• क्या = yes/no question marker
• यहाँ = here
• नेटवर्क = network
• कवरेज = coverage
• मज़बूत = strong
• है = is

So the structure is:

• क्या + यहाँ + नेटवर्क कवरेज + मज़बूत + है?

Very literally:

• Is here network coverage strong?

Natural English:

• Is the network coverage strong here?