`is_answered` is `true` if there is at least one positively scoring answer. It doesn't actually mean 'marked as accepted'. See more about how it works [in this answer](http://stackapps.com/a/4231/26088)
Also,
https://api.stackexchange.com/2.2/search/advanced?site=stackoverflow.com&page=1&pagesize=20&order=desc&sort=relevance&q=signalr
(URL without filter so I don't need key/access token)
gives the JSON:
{
"items":[
{
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"signalr"
],
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"display_name":"user960567",
"link":"http://stackoverflow.com/users/960567/user960567"
},
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"accepted_answer_id":7874352,
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"score":115,
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"creation_date":1318940205,
"question_id":7807066,
"link":"http://stackoverflow.com/questions/7807066/how-signalr-works-internally",
"title":"How SignalR works internally?"
},
{
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"signalr"
],
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"profile_image":"https://www.gravatar.com/avatar/b154c4e4a979b7201ad47881520a08af?s=128&d=identicon&r=PG",
"display_name":"Craig W.",
"link":"http://stackoverflow.com/users/97382/craig-w"
},
"is_answered":true,
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"accepted_answer_id":9281143,
"answer_count":5,
"score":104,
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"creation_date":1329236849,
"question_id":9280484,
"link":"http://stackoverflow.com/questions/9280484/signalr-why-choose-hub-vs-persistent-connection",
"title":"SignalR: Why choose Hub vs. Persistent Connection?"
},
{
"tags":[
"c#",
"asp.net",
"signalr"
],
"owner":{
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"profile_image":"https://www.gravatar.com/avatar/b2ea20cc07619dd7cdc286f09e2ecca3?s=128&d=identicon&r=PG",
"display_name":"Rocky Singh",
"link":"http://stackoverflow.com/users/449907/rocky-singh"
},
"is_answered":true,
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"last_activity_date":1456907475,
"creation_date":1327063045,
"question_id":8941595,
"link":"http://stackoverflow.com/questions/8941595/signalr-signalr-hubs-giving-404-error",
"title":"SignalR "signalr/hubs" giving 404 error"
},
{
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"jquery",
"asp.net-mvc-3",
"signalr"
],
"owner":{
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},
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"link":"http://stackoverflow.com/questions/8920621/signalr-startup",
"title":"SignalR - StartUp"
},
{
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"signalr"
],
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"profile_image":"https://www.gravatar.com/avatar/7ecb2a888caf6ef8b5fbdce03d725f92?s=128&d=identicon&r=PG",
"display_name":"CBaker",
"link":"http://stackoverflow.com/users/1447975/cbaker"
},
"is_answered":true,
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"creation_date":1456952929,
"question_id":35758082,
"link":"http://stackoverflow.com/questions/35758082/signalr-the-signalr-hubs-file",
"title":"SignalR - The signalr/hubs file"
},
{
"tags":[
"requirejs",
"signalr"
],
"owner":{
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"profile_image":"https://www.gravatar.com/avatar/4063cd31f7de485431927b28f82828c0?s=128&d=identicon&r=PG",
"display_name":"coreyperkins",
"link":"http://stackoverflow.com/users/327911/coreyperkins"
},
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"score":5,
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"last_edit_date":1342323312,
"question_id":11478946,
"link":"http://stackoverflow.com/questions/11478946/require-js-signalr",
"title":"Require.js + SignalR"
},
{
"tags":[
"asp.net",
"signalr"
],
"owner":{
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"user_type":"registered",
"profile_image":"https://www.gravatar.com/avatar/13a791640ad72effea4ed5e545ad8a61?s=128&d=identicon&r=PG",
"display_name":"whebz",
"link":"http://stackoverflow.com/users/1847005/whebz"
},
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"question_id":13973425,
"link":"http://stackoverflow.com/questions/13973425/signalr-methodaccessexception",
"title":"SignalR MethodAccessException"
},
{
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"c#",
"signalr"
],
"owner":{
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"user_type":"registered",
"profile_image":"https://www.gravatar.com/avatar/594ab11fd7c482dbdc5c7d854de4fff0?s=128&d=identicon&r=PG",
"display_name":"Dexception",
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},
"is_answered":false,
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"question_id":31305882,
"link":"http://stackoverflow.com/questions/31305882/signalr-err-conection-refused-on-signalr-hubs",
"title":"SignalR ERR_CONECTION_REFUSED on signalr/hubs"
},
{
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],
"owner":{
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"profile_image":"https://i.sstatic.net/29eUl.jpg?s=128&g=1",
"display_name":"reach4thelasers",
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},
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"link":"http://stackoverflow.com/questions/9991035/securing-signalr-calls",
"title":"Securing SignalR Calls"
},
{
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"signalr"
],
"owner":{
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"profile_image":"https://www.gravatar.com/avatar/2bcc518c6f92a560dc32647190319ace?s=128&d=identicon&r=PG",
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},
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"score":1,
"last_activity_date":1342565236,
"creation_date":1342002034,
"question_id":11430517,
"link":"http://stackoverflow.com/questions/11430517/signalr-overhead",
"title":"signalR overhead"
},
{
"tags":[
"c#",
"asp.net",
"asp.net-mvc",
"signalr"
],
"owner":{
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"user_id":899974,
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"profile_image":"https://www.gravatar.com/avatar/77be3b28cd3567ffa632d75aba0a2090?s=128&d=identicon&r=PG",
"display_name":"ishahrier",
"link":"http://stackoverflow.com/users/899974/ishahrier"
},
"is_answered":false,
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"answer_count":0,
"score":1,
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"creation_date":1404240425,
"last_edit_date":1414669608,
"question_id":24517253,
"link":"http://stackoverflow.com/questions/24517253/signalr-authentication",
"title":"SignalR authentication"
},
{
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"javascript",
"signalr",
"signalr-hub"
],
"owner":{
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"user_id":1576800,
"user_type":"registered",
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"profile_image":"https://www.gravatar.com/avatar/d60ba6a7b217f636f7bcace4ed116446?s=128&d=identicon&r=PG",
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},
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"link":"http://stackoverflow.com/questions/11813373/signalr-undefined",
"title":"signalR undefined"
},
{
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"high-load"
],
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"profile_image":"https://www.gravatar.com/avatar/70134c59b75fae8967d97bb2769ce85b?s=128&d=identicon&r=PG",
"display_name":"Viet NT",
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},
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"question_id":25159905,
"link":"http://stackoverflow.com/questions/25159905/signalr-performance",
"title":"SignalR performance"
},
{
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"c#",
"asp.net-mvc",
"signalr"
],
"owner":{
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},
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"question_id":22917723,
"link":"http://stackoverflow.com/questions/22917723/signalr-security",
"title":"SignalR Security"
},
{
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"signalr-hub"
],
"owner":{
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"profile_image":"https://www.gravatar.com/avatar/b0e76ddb571766c264d3a4bdff71c27f?s=128&d=identicon&r=PG",
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"link":"http://stackoverflow.com/users/17194/chrisca"
},
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"score":2,
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"question_id":11879927,
"link":"http://stackoverflow.com/questions/11879927/signalr-disconections",
"title":"SignalR Disconections"
},
{
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"c#",
"asp.net",
"node.js",
"signalr"
],
"owner":{
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"display_name":"acostela",
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},
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"question_id":34268530,
"link":"http://stackoverflow.com/questions/34268530/signalr-nodejs",
"title":"SignalR + nodeJS"
},
{
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"json",
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],
"owner":{
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},
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"link":"http://stackoverflow.com/questions/32314638/signalr-typenamehandling",
"title":"SignalR Typenamehandling"
},
{
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"asp.net",
"iis",
"signalr"
],
"owner":{
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"link":"http://stackoverflow.com/questions/11155064/signalr-signalr-hubs-404-not-found",
"title":"SignalR /signalr/hubs 404 Not Found"
},
{
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"asp.net",
"angularjs",
"signalr"
],
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"link":"http://stackoverflow.com/questions/35527177/signalr-asp-net",
"title":"SignalR ASP.NET"
},
{
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"signalr",
"amazon-elasticache"
],
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"link":"http://stackoverflow.com/questions/31057333/using-signalr-with-elasticache-fails",
"title":"Using SignalR with ElastiCache fails"
}
],
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}
which *does* contain the screenshotted question:
{
"tags":[
"c#",
"asp.net",
"asp.net-mvc",
"signalr"
],
"owner":{
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"display_name":"ishahrier",
"link":"http://stackoverflow.com/users/899974/ishahrier"
},
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"last_edit_date":1414669608,
"question_id":24517253,
"link":"http://stackoverflow.com/questions/24517253/signalr-authentication",
"title":"SignalR authentication"
},