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Web Technologies > HTTP Codes > Flashcards

HTTP Codes Flashcards

1
Q

100

A

Continue - server has received request headers, and client should proceed to send the request body.

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2
Q

101

A

Switching protocols - requester has asked the server to switch protocols, and the server is acknowledging it will do so.

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3
Q

102

A

Processing (WebDAV: rfc 2518). Indicates sever has received and is processing requests. But no response is available yet. Used to prevent timeouts.

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4
Q

200

A

OK - standard response for successful requests.

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5
Q

201

A

Created - the request has been fulfilled and resulted in a new resource being created.

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6
Q

202

A

Accepted - the request has been accepted for processing, but the processing is not completed. It may / may not be acted on, it may even be disallowed when processing actually takes place.

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7
Q

203

A

Non-authoritative information. The server successfully processed the request, but is returning information that may be from another source

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8
Q

204

A

No content - the server successfully completed the request, but is not returning any content (I.e. Delete requests)

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9
Q

205

A

Reset content - the server successfully processed the request, but not sending content, this is different to a 204, in that the response requires the requester reset the document view.

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10
Q

206

A

Partial content - server is only delivering part of the resource (byte serving) due to a range header sent by the client. Range header is used by tools like get to enable resuming of interrupted downloads, or splitting into simultaneous streams.

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11
Q

207

A

Multiple-status - the message body that follows is XML and can contains number of separate response codes, depending on number of sub requests made.

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12
Q

208

A

Already reported - the members of a DAV have already been enumerated in a previous reply to this request, and are not being included again.

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13
Q

226

A

IM Used - the server has fulfilled a request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance

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14
Q

300

A

Multiple choices - multiple choices may follow. Such as different format options for video.

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15
Q

301

A

Moved permanently - this and all future requests should be directed to the given URI.

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16
Q

302

A

Found - was usually implemented incorrectly, using meaning of a 303. Hence the need for the 303 and 307 codes

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17
Q

303

A

See other - the reponse to the request can be found under another URI using a get method. (Can be received in response to post, put or delete request)

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18
Q

304

A

Not modified - indicates the resource has not been modified since the version specified bt the request headers.

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19
Q

305

A

Use proxy - the requested resource is only available through a proxy, whose address is provided in the header.

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20
Q

306

A

Switch proxy - no longer used

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21
Q

307

A

Temporary redirect - the request should be repeat edits another URI. However future requests should still use the original URI.

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22
Q

308

A

Permanent redirect - the request and all future requests should be repeated using another URI.

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23
Q

400

A

Bad request - server cannot and will not process the request due to something that is perceived as a client error.

24
Q

401

A

Unauthorised - Similar to 403 forbidden, but specifically when authorisation is required and has either failed, or not been provided.

25
Q

402

A

Payment required - reserved for future use.

26
Q

403

A

Forbidden - valid request, but the server is refusing to respond to it.

27
Q

404

A

Not found - the requested resource was not found by the server.

28
Q

406

A

Not acceptable - the requested resource is only capable of generating content not acceptable according to the accept headers in the request.

29
Q

407

A

Proxy authentication required - client must first authenticate itself with the proxy

30
Q

408

A

Request timeout - server timed out waiting for the request.

31
Q

409

A

Conflict- indicates the request could not be processed due to a conflict in the request.

32
Q

410

A

Indicates the resource is no longer available

33
Q

411

A

Length required - request did not specify the length of its content

34
Q

412

A

Precondition failed - the server does not meet one or more of the preconditions that the requester put on the request.

35
Q

413

A

Request entity too large

36
Q

414

A

Request URI too long

37
Q

415

A

Unsupported media type

38
Q

416

A

Requested range not satisfiable

39
Q

417

A

Expectation failed

40
Q

418

A

I’m a teapot

41
Q

419

A

Authentication timeout (not a part of the rfc?)

42
Q

420

A

Enhance your calm - not a part of the rfc - returned by twitter search and trends when client is being rate limited

43
Q

429

A

Too many requests

44
Q

440

A

Login timeout (Microsoft)

45
Q

444

A

No response (nginx)

46
Q

449

A

Retry with (Microsoft)

47
Q

500

A

Internal server error

48
Q

501

A

Not implemented - server does not recognise the request method, or can’t fulfil the request

49
Q

502

A

Bad gateway - server was acting as a gateway or proxy and received an invalid response from an upstream server

50
Q

503

A

Server unavailable

51
Q

504

A

Gateway timeout - server was acting as a gateway or proxy and did not receive a timely response from the upstream server

52
Q

505

A

HTTP version not supported

53
Q

1xx type messages are…

A

Informational

54
Q

2xx messages are…

A

Success

55
Q

3xx messages are…

A

Redirections

56
Q

4xx messages are…

A

Client errors

57
Q

5xx messages are…

A

Server errors

Web Technologies (35 decks)

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