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Which is an essential component of a LAN?

Which is an essential component of a LAN? Correct Answer NIC

Hints: সাধারণত ১০ কিমি বা তার কম এরিয়ার মধ্যে বেশকিছু কম্পিউটার টার্মিনাল বা অন্যকোন পেরিফেরাল ডিভাইস সংযুক্ত করে যে নেটওয়ার্ক তৈরি করা হয় তাকে LAN বলে। LAN এ নেটওয়ার্ক ইনফরমেশন সেন্টার বা NIC গুরুত্বপূর্ণ উপাদান।

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একটি LAN এর সাথে আরেকটি LAN কে যুক্ত করতে কি ব্যবহার করা হয়?
একটি প্রতিষ্ঠানের একটি LAN-কে অন্য একটি LAN-এর সাথে করার জন্য কী ব্যবহার করা হয়? 
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