Amazon EC2 nini ne?

Question

Amazon EC2 nini ne?

IT Interview Practice · Accepted Answer

**EC2** (Elastic Compute Cloud) yana samar da ƙarin **jagororin kwamfuta** (instances) a cikin cloud — kina aiwatar, shiryawa, da aiki da jagororin kwamfuta akan bubuwa. Yana ɗaya daga cikin ayyukan tushe na AWS na aiki da aikace-aikace.

## Abin da EC2 yake

```text
EC2 = virtual servers ("instances") you rent and run in AWS's cloud:
  → launch a VM in minutes (choose OS, CPU, memory, storage)
  → full control (it's your server — install software, configure as you like)
  → pay for the time it runs (per-second/hour)
  → "Elastic" — launch many, scale up/down, resize as needed
```

## Mahimman tunaninai

```text
INSTANCE TYPE → the hardware profile: CPU/memory/network (e.g. t3.micro small,
  m5.large general, c5 compute-optimized, r5 memory-optimized) — pick by workload
AMI (Amazon Machine Image) → the template (OS + pre-installed software) to launch from
KEY PAIR → SSH keys to securely access (log into) the instance
SECURITY GROUP → a virtual firewall (which ports/traffic are allowed)
EBS VOLUME → attached disk storage (persists data)
ELASTIC IP → a static public IP address
```

## Aiwatar da amfani da instance

```bash
# typically via the Console, CLI, or IaC:
aws ec2 run-instances --image-id ami-xxx --instance-type t3.micro --key-name mykey
# then SSH in:
ssh -i mykey.pem ec2-user@<public-ip>
# install/run your app on the instance like any Linux/Windows server
```

## Tsarin farashi

```text
ON-DEMAND → pay per use, no commitment (flexible, most expensive)
RESERVED / SAVINGS PLANS → commit 1-3 years for big discounts (steady workloads)
SPOT → spare capacity at huge discounts, but can be reclaimed (fault-tolerant workloads)
```

## Me yasa ya matukarta

Sanin EC2 ya zama mahimmanci saboda shi ne ɗaya daga cikin ayyukan tushe na AWS da aka yi amfani da shi a yawancin lokuta — yana samar da jagororin kwamfuta waɗanda suke aiki da yawa daga aikace-aikace — don haka ilimin tushe na AWS ya zama dole.

EC2 yana wakiltar kawai ƙarfin cloud na **aiwatawa jagororin kwamfuta akan bubuwa**: aiwatawa jagororin kwamfuta a cikin mintuna kaɗan (zaɓi OS, CPU, alaƙu, da ajiya), samun cikakken sariya don aiwatawa da shiryawa software kamar yadda aka buƙata, biyan ido kawai don lokacin aiwatawa, da fadada juju.

Wannan shine daidaitawar cloud na samun jagororin kwamfuta, yana sa EC2 zama tushen gida don jamawa aikace-aikace, yanar gida, databases, da kusan duk wani aiki.

Sanin **mahimman tunaninai** — nau'in instances (jera hardware profiles zuwa aiki), AMIs (tsari don aiwatawa daga), key pairs (karɓowa mai aminci), security groups (baje mulofin gofe), EBS volumes (ajiya), da elastic IPs — ya zama mahimmanci don gaske aiwatawa da amfani da EC2 cikin inganci.

Sanin **tsarin farashi** (on-demand don jujuya, reserved/savings plans don aiki na jiya-jiya akan raban, da spot instances don saurin cibiyar gida akan aiki mai juriya) ya zama muhimmanci ga amfani mai tushe, tunanin gaske na duniya.

Saboda EC2 abin tushe ne, ayyukan AWS da aka yi amfani da shi sosai (tushen jagororin kwamfuta wanda ya aiwata da yawa daga aikace-aikace) da sanin shi (ra'ayin, mahimman tunaninai, da tsarin farashi) ya zama tushe ga aiwatawa da AWS compute, sanin EC2 ya zama dole, ilimin tushe na AWS — ɗaya daga cikin farkon ayyukan da za a fahimta yayin ilimin AWS da tushe na abubuwa da yawa da ke gudana a kan shafin, yana sa sanin shi ya zama muhimmanci ƙarfin kowa wanda ke aiki da inji na AWS.

Abin da EC2 yake

Mahimman tunaninai

Aiwatar da amfani da instance

Tsarin farashi

Me yasa ya matukarta

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