244_________________________________________ Internet

"Request-Header"     "q",  
  0  1 (  q= 1).    -
 ( )    .
,  "Accept: text/*; q=0.8, text/html" ,   
     html ,   
  ,       20%.

2.  "Host:"   URL  .  , 
    , , "GET
/readme, html HTTP/I.I", URI      "Host:".

3.  "If-Match:", "If-None-Match:", "If-Range:", "If-Unmodofied-Since:"
       -
       / -
 .

4.  "Proxy-Authorization:"     
  .      -
        .

5.  "Range:"     .

   "Response-Header"   , :

1.  "Age:",    ,  
     .   
      .

2.  "Warning:"      -
        
.

   "Entity-Header"  :

1.   "Content*:",  : "Content-Base:", "Content-
Language:", "Content-Location:", "Content-MD5:", "Content-Range:"  -
, , ,  , 
  (  ),  ,  
  .

2.  "ETag:"     ,   -
    ,     
.

,            
"/1.1",     "/1.0",     
 .       -
     .