2021年家庭寬帶網(wǎng)絡(luò)運維技能競賽理論試題庫（含各題型）

2021/r/n年家庭/r/n寬帶/r/n網(wǎng)/r/n絡(luò)/r/n運/r/n維/r/n技能/r/n競賽/r/n理/r/n論試題庫/r/n（含各/r/n題/r/n型）/r/n一/r/nゝ單選題/r/n.以下/r/n用/r/n戶引入線線間接頭質(zhì)量的描述/r/n（）/r/n句是錯誤的?/r/nA/r/n、/r/n布線長度在/r/n50m/r/n以內(nèi)不可有接頭/r/nB/r/n、/r/n長度在/r/n100m/r/n內(nèi),只允許有一個接頭/r/nC/r/n、最長用戶引入線不超過/r/n200m/r/nD/r/n、/r/n同一/r/n條用戶引入線線徑可以不一致/r/n答案:/r/nD/r/n.光（電）纜鋼管伸出穿/r/n越/r/n無兩側(cè)應(yīng)/r/n2/r/n〇/r/nmo/r/nA/r/n、/r/n0.5/r/nB/r/n、/r/n0.8/r/nC/r/n、/r/n!/r/nD/r/n、/r/n1.2/r/n答案:/r/nC/r/n.管道光纖在人（手）孔盤成“〇”/r/n型圈,其曲率/r/n半徑應(yīng)不小于光纜/r/n直徑/r/n的/r/n〇/r/nA/r/n、/r/n5/r/nB/r/n、/r/n10/r/nC/r/n、/r/nI5/r/nD/r/n、/r/n20/r/n答案：/r/nB/r/n.光纖冷接子基本技術(shù)參數(shù)中,插入最耗要求/r/n〇/r/n。/r/nA/r/n、/r/n＜0./r/n08dB/r/nB/r/n、/r/n＜0./r/n1dB/r/nC/r/n、/r/n＜0,/r/nl5dB/r/nD/r/n、/r/n＜0./r/n5dB/r/n答案：/r/nB/r/n.設(shè)備在環(huán)境/r/n溫度/r/n為/r/n25°C/r/n時運行時,整機外殼任意點/r/n溫度應(yīng)不高/r/n于/r/n〇/r/n℃/r/nA/r/n、/r/n40/r/nB/r/n、/r/n45/r/nC/r/n、/r/n50/r/nD/r/n、/r/n55/r/n答案:/r/nB/r/n.在梯上的工作人員,應(yīng)將另一足騎跨穿過踏腳的上面(),并勾往,以取得較好的支持./r/nA/r/n、/r/nー/r/n檔/r/nB/r/n、/r/n二檔/r/nG/r/n三檔/r/nD/r/n、/r/nー檔或二檔/r/n答案:/r/nB/r/n./r/n如何解綁移動看家攝像頭/r/nA/r/n、/r/n在和家親/r/nApp/r/n解綁/r/nB/r/n、/r/n找家庭安防售后解綁/r/nG/r/n打/r/n10086/r/n解綁/r/nD/r/n、/r/n不能解綁/r/n答案：/r/nA/r/n.由于光纖中傳輸?shù)墓獠ū葻o線電通信使用的〇高得多,因此/r/n其/r/n通信容量就比無線電通信大得多。/r/nA/r/n、/r/n頻率/r/nB/r/n、/r/n幅度/r/nC/r/n、/r/n角度/r/nD/r/n、/r/n位移/r/n答案：/r/nA/r/n11a/r/n協(xié)議規(guī)定最低速率為〇/r/n6Mbps/r/n11Mbps/r/n54Mbps/r/n300Mbps/r/n答案:/r/nA/r/n.單/r/n模光纖/r/n1310nm/r/n衰減為/r/n〇。/r/nA/r/n、/r/n1~1.2dB/km/r/nB/r/n、/r/n0.6~0.8dB/k/r/nG0.8~1dB/km/r/nD/r/n、/r/n0.4~0.6dB/km/r/n答案:/r/nD/r/n.當(dāng)/r/n管道溝及人（手）孔/r/n坑深度/r/n超過/r/n〇/r/n時,應(yīng)適當(dāng)增設(shè)倒/r/n土平/r/n臺或加大放坡系數(shù)。/r/nA/r/n、/r/n2m/r/nB/r/n、/r/n2.5m/r/nC/r/n、/r/n3m/r/nD/r/n、/r/n3.5m/r/n答案：/r/nC/r/n.某/r/n用戶平時使用路由器/r/n上/r/n網(wǎng),每天在晚上/r/n8:30/r/n之后/r/n就/r/n無法上網(wǎng),/r/n直/r/n到后一天早上/r/n8:00/r/nオ/r/n可以上網(wǎng),/r/n同樓層其/r/n他用戶正常,最可能的原因是/r/n〇/r/nA/r/n、/r/n我司的網(wǎng)絡(luò)出口/r/n帶寬小、/r/n在晩/r/n上髙/r/n蜂期/r/n出現(xiàn)擁塞/r/nB/r/n、/r/n我司的/r/nONU/r/n及其以上設(shè)備或線路不穩(wěn)定導(dǎo)致經(jīng)常斷線/r/nC/r/n、/r/n客戶路由器/r/n設(shè)置了/r/n時/r/n間/r/n策略,只許在/r/n8:/r/n00-20:/r/n30/r/n能上網(wǎng)/r/nD/r/n、/r/n客戶電腦中病毒導(dǎo)致/r/n答案：/r/nC/r/n./r/n光（電）纜通道的寬度宜為/r/n（）/r/n米./r/nA/r/n、/r/n1.4~1./r/n6/r/nB/r/n、/r/n1.5~1.7/r/nC/r/n、/r/n1./r/n6~1.8/r/nD/r/n、/r/n1.8~2/r/n答案：/r/nA/r/n.EP0NR/S-S/R/r/n點衰耗范圍:/r/nONU/r/n發(fā)射光功/r/n率/r/nOdBm~4dBm,/r/n接收光靈敏度為/r/n〇/r/n-24dBm/r/n-25dBm/r/nG-26dBm/r/nD/r/n、/r/n-27dBm/r/n答案:/r/nD/r/n.如橋架內(nèi)無空間安裝波紋管,則應(yīng)采用〇對敷設(shè)在內(nèi)的蝶形引入光纜進行包扎,以起到對光纜的保護作用。/r/nA/r/n、/r/n過路盒/r/nB/r/n、/r/n纏繞管/r/nC/r/n、/r/n入戶暗管/r/nD/r/n、/r/n防水膠布/r/n答案:/r/nB/r/n./r/n以下哪個是移動看家引入的品牌?/r/nA/r/n、/r/n?？低?r/nB/r/n、/r/n大華/r/nC/r/n、/r/nTP-LINK/r/nD/r/n、/r/n以上都是/r/n答案：/r/nD/r/n.XP0N/r/n系統(tǒng)中,不屬于應(yīng)用層協(xié)議子系統(tǒng)的協(xié)議是〇/r/nA/r/n、/r/nDHCP/r/nB/r/n、/r/nFTP/r/nC/r/n、/r/nUDP/r/nD/r/n、/r/nSNMP/r/n答案：/r/nC/r/n.在家庭組網(wǎng)中,無線產(chǎn)品最大發(fā)射功率為/r/n100mW,/r/n相當(dāng)于〇。/r/nIdbm/r/n10dbm/r/nG20dbm/r/n答案:/r/nc/r/n.A/r/n接口是手機/r/nAPP/r/n和智能家庭網(wǎng)關(guān)之間的〇接口,可以實現(xiàn)對智能家庭網(wǎng)關(guān)以及加載應(yīng)用的配置及管理等功能/r/nA/r/n、/r/n遠程邏輯/r/nB/r/n、/r/n本地邏輯/r/nC/r/n、/r/n本地物理/r/nD/r/n、/r/n遠程物理/r/n答案:/r/nB/r/n.下列那個不屬于公網(wǎng)/r/nIP/r/n地址/r/n0/r/nA/r/n、/r/n8.8.8./r/n8/r/nB/r/n、/r/n4/r/nC/r/n、/r/n172.16.10./r/n24/r/nD/r/n、/r/n202./r/n100./r/n13./r/n204/r/n答案：/r/nC/r/n.WIF!/r/n的工作原理特性以下說法中錯誤的是〇。/r/nA/r/n、/r/n半雙エ/r/nB/r/n、/r/n時/r/n分系統(tǒng)/r/nC/r/n、/r/n頻分系統(tǒng)/r/nD/r/n、/r/n具備沖突避免機制/r/n答案：/r/nC/r/n.海康威視/r/nDS-2CD2225C-ZHY/r/n夜視模式是怎么切換的?/r/nA/r/n、/r/n手動切換白光燈/r/nB/r/n、/r/nICR/r/n紅外自動切換/r/nC/r/n、/r/n手動切換紅外/r/nD/r/n、/r/n自動切換白光燈/r/n答案：/r/nB/r/n.蝶形引入光纜直插頭損耗為〇/個/r/nA/r/n、/r/n0.1dB/r/nB/r/n、/r/n0.3dB/r/nG0.5dB/r/nD/r/n、/r/n0.6dB/r/n答案:/r/nB/r/n24.802/r/n.11g/r/n不支持下面哪種傳輸速率/r/n〇/r/n9Mbps/r/n65Mbps/r/n54Mbps/r/n12Mbps/r/n答案:/r/nB/r/n.下列認證方式是屬/r/n于/r/n硬件認證而非用戶認證的是/r/n〇。/r/nA/r/n、/r/n共/r/n享/r/n密鑰認證/r/nB/r/n、/r/nEAP/r/n認證/r/nC/r/n、/r/nMAC/r/n認證/r/nD/r/n、/r/nSSID/r/n匹配/r/n答案：/r/nC/r/n.IEEE802.11ac/r/n協(xié)議單/r/n空間/r/n流支持的最大速率為/r/n()/r/nMbps/r/n。/r/nA/r/n、/r/n150/r/nB/r/n、/r/n300/r/nC/r/n、/r/n433/r/nDv500/r/n答案：/r/nC/r/n.金屬/r/n槽和/r/nPVC/r/n塑料槽每根槽一般長度為/r/n〇米。/r/nA/r/n、/r/n1/r/nB/r/n、/r/n2/r/nC/r/n、/r/n3/r/nD/r/n、/r/n4/r/n答案：/r/nC/r/n.管道鋪設(shè)應(yīng)有一定的坡度,管道坡度不得小于/r/n()/r/n。/r/nA/r/n、/r/n1.5%/r/n。/r/nB/r/n、/r/n2%/r/n。/r/nC/r/n、/r/n2.5%/r/n。/r/nD/r/n、/r/n3%o/r/n答案:/r/nC/r/n.PLC/r/n電カ貓設(shè)備操作簡單,實用性強,但是在組網(wǎng)應(yīng)用中存在〇問題,對穩(wěn)定性有較大影響。/r/nA/r/n、/r/n價格較貴/r/nB/r/n、/r/n共享介質(zhì)/r/nC/r/n、/r/n易受大功率電器干擾/r/nD/r/n、/r/n缺少訪問控制/r/n答案:/r/nC/r/n.對于/r/nPON/r/n網(wǎng)絡(luò),在/r/nONU/r/n沒有接到網(wǎng)絡(luò)上來之前,/r/nONU/r/n是不發(fā)光的。所以如果檢測出來從/r/nONU/r/n側(cè)上來的尾纖有光信號/r/n則/r/n表示該/r/nONU/r/n為〇/r/nA/r/n、/r/n設(shè)備損壞/r/nB/r/n、/r/n單板損壞/r/nC/r/n、/r/n光路不正常/r/nD/r/n、/r/n流氓/r/nONU/r/n答案：/r/nD/r/n.在不可避免時，允許和/r/nOKV/r/n以下電カ線路合桿架設(shè),但必須采取相應(yīng)得技術(shù)防護措施,并與有關(guān)部門簽訂協(xié)議。/r/nA/r/n、/r/n110/r/nB/r/n、/r/n35/r/nC/r/n、/r/n10/r/nD/r/n、/r/n0./r/n6/r/n答案：/r/nC/r/n.應(yīng)使用光纜盤攜帶蝶形引入光纜，并在敷設(shè)光纜時使用〇,使光纜盤能自動轉(zhuǎn)動,以防止光纜被纏繞。/r/nA/r/n、/r/n放纜托架/r/nB/r/n、/r/n絞線盤/r/nC/r/n、/r/n支撐架/r/nD/r/n、/r/n光纖保護器/r/n答案:/r/nA/r/n.遇到傷害/r/n時,/r/n不要驚慌失措,要保持〇,并設(shè)法維護好現(xiàn)場秩序。/r/nA/r/n、/r/n鎮(zhèn)靜（冷靜）/r/nB/r/n、/r/n焦急/r/nC/r/n、/r/n慌亂/r/n答案:/r/nA/r/n.HUB/r/n有/r/n4/r/n個端口,它的廣播域和沖突域的個數(shù)分別是〇。/r/nA/r/n、/r/n1/r/n和/r/n4/r/nB/r/n、/r/n4/r/n和/r/n4/r/nC/r/n、/r/n1/r/n和/r/n1/r/nD/r/n、/r/n4/r/n和/r/n1/r/n答案：/r/nC/r/n.查看丟包率,可以用/r/nWireshark/r/n抓包后查看〇包的丟失率。/r/nA/r/n、/r/nRTP/r/nB/r/n、/r/nUDP/r/nGMEGACO/r/nD/r/n、/r/nICMP/r/n答案：/r/nA/r/n.下列對于智能門鎖描述正確的是〇/r/nA/r/n、/r/n智能門鎖只能通過手機解鎖/r/nB/r/n、/r/n智能門鎖如果沒電就無法打開/r/nC/r/n、/r/n目前僅有少部分智能門鎖采用了生物識別技術(shù)/r/nD/r/n、/r/n如今的智能門鎖密碼開鎖基本都采用了虛位密碼的模式/r/n答案：/r/nD/r/n.在給用戶做智能組網(wǎng)時,以下/r/nWi-Fi/r/n信號強度是最好的?〇/r/nA/r/nヽ/r/n/r/n40dBm/r/n50dBm/r/n60dBm/r/nD70dBm/r/n答案:/r/nA/r/n38/r/n.輸出功率為/r/n100mW/r/n的/r/n802.11b/g/r/n產(chǎn)品覆蓋距離理論值〇/r/n〇/r/nA/r/n、/r/n30/r/n米/r/nB/r/n、/r/n50/r/n米/r/nC/r/n、/r/n100/r/n米/r/nD/r/n200/r/n米/r/n答案:/r/nC/r/n.超/r/n5/r/n類線主要用于/r/n（）/r/n。/r/nA/r/n、/r/n10/r/n兆位以太網(wǎng)/r/nB/r/n、/r/n百兆位以太網(wǎng)/r/nC/r/n、/r/n千兆位以太網(wǎng)/r/nD/r/n、/r/n萬兆位以太網(wǎng)/r/n答案：/r/nC/r/n.積水罐用鑄鐵加工,要求用〇防腐處理/r/nA/r/n、/r/n防銹漆/r/nB/r/n、/r/n熱涂瀝青/r/nC/r/n、/r/n鍍鋅/r/nD/r/n、/r/n濃硫酸/r/n答案：/r/nB/r/n.人工開挖的埋式光（電）纜溝底寬度宜為（）/r/nmm/r/n。/r/nA/r/n、/r/n200/r/nB/r/n、/r/n250/r/nC/r/n、/r/n300/r/nD/r/n、/r/n400/r/n答案：/r/nD/r/n.水泥預(yù)制品生產(chǎn)前,必須按水泥類別'標號及混凝土標號,做至少ー組混凝土試塊,具體組數(shù)由（）單位根據(jù)需要確定。/r/nA/r/n、/r/n建設(shè)/r/nB/r/n、/r/n設(shè)計/r/nC/r/n、/r/n生產(chǎn)/r/nD/r/n、/r/n監(jiān)理/r/n答案:/r/nC/r/n.以下不能解決/r/n影/r/n片播放沒有聲音的是/r/n〇/r/nA/r/n、/r/n若使用/r/nAV/r/n線,請先檢測/r/nAV/r/n線ゝ音頻線連接是否正常,如有異常建議重新連接/r/nB/r/n、/r/n調(diào)大機頂盒和電視機/r/n音量/r/nC/r/n、/r/n檢查機頂盒設(shè)/r/n置ー》/r/n聲音,是否設(shè)置為/r/nRAW,/r/n如果設(shè)置為/r/nRAW/r/n需要改為/r/nPCM/r/nD/r/n、/r/n更換遙控器電池/r/n答案:/r/nD/r/n.FBT/r/n類型規(guī)格為/r/n1:2/r/n的分路器插入損耗小于或等于/r/n〇/r/ndB/r/nA/r/n、/r/n1.8/r/nB/r/n、/r/n3./r/n6/r/nC/r/n、/r/ny.3/r/nD/r/n、/r/n10.7/r/n答案：/r/nB/r/n.使用簡易式/r/nPOE/r/n反向供電技術(shù),在終端處/r/n需/r/n使用/r/n〇/r/n為其供電。/r/nA/r/n、/r/nPOE/r/n母頭/r/nB/r/n、/r/nPOE/r/n公頭/r/nGPOE/r/n交換機/r/nD/r/n、/r/n12V/r/n電源/r/n答案：/r/nB/r/n.梯子與地面的夾角應(yīng)為/r/n()/r/n0/r/n左右。/r/nA/r/n、/r/n30/r/nB/r/n、/r/n45/r/nC/r/n、/r/n65/r/n答案：/r/nC/r/n./r/n為了順利的實現(xiàn)數(shù)字家庭平臺對智能組網(wǎng)終端的管理和遠程控制,我們通常將智能網(wǎng)關(guān)設(shè)置為路由接入模式,網(wǎng)關(guān)下面的無線設(shè)備設(shè)置為橋接模式,即通常所說的〇。/r/nA/r/n、/r/n路由接入/r/nB/r/n、/r/n賬號認證/r/nC/r/n、/r/n自動獲取/r/nD/r/n、/r/n賬號到期/r/n答案:/r/nC/r/n.下列關(guān)于萬能遙控器說法正確的是?〇/r/nA/r/n、/r/n所有萬能遙控器均支持紅外和射頻遙控/r/nB/r/n、/r/n萬能遙控器可遙控藍牙模式遙控的電器/r/nC/r/n、/r/n萬能遙控可隔墻遙控紅外家電/r/nD/r/n、/r/n萬能遙控器支持紅外遙控學(xué)習(xí)功能/r/n答案:/r/nD/r/n.EPON/r/n在/r/nOLT/r/n和/r/nONU/r/n之間規(guī)定了一種控制機制是〇/r/nA/r/n、/r/nCRC/r/nB/r/n、/r/nFCS/r/nC/r/n、/r/nLLID/r/nD/r/n、/r/nMPCP/r/n答案：/r/nD/r/n.EPON/r/n提供的各種業(yè)務(wù)中，優(yōu)先級最高的是〇/r/nA/r/n、/r/n語音/r/nB/r/n、/r/n視頻/r/nC/r/n、/r/n寬帶/r/nD/r/n、/r/n以上優(yōu)先級相等/r/n答案：/r/nA/r/n.平面復(fù)測允許偏差應(yīng)符合下列規(guī)定:直通型人（手）孔的中心位置不得大于〇/r/nmm/r/no/r/nA/r/n、/r/n20/r/nB/r/n、/r/n50/r/nC/r/n、/r/n100/r/nD/r/n、/r/n120/r/n答案:/r/nC/r/n.吊線在電桿上的坡度變更大/r/n于/r/n桿距/r/n〇/r/n時,應(yīng)加裝仰角輔助裝置或俯角輔助裝置。/r/nA/r/n、/r/n0./r/n1/r/nB/r/n、/r/n0./r/n2/r/nC/r/n、/r/n0./r/n3/r/nD/r/n、/r/n0./r/n35/r/n答案:/r/nB/r/n.當(dāng)光纜線路傳輸距/r/n離小/r/n于或等于/r/n5km/r/n時,/r/n其/r/n衰耗取/r/n〇/r/ndB/r/nA/r/n、/r/n!/r/nB/r/n、/r/n2/r/nC/r/n、/r/n3/r/nD/r/n、/r/n4/r/n答案：/r/nB/r/n.FBT/r/n類型規(guī)格為/r/n1:2/r/n的分路/r/n器/r/n插入損耗小/r/n于/r/n或等/r/n于〇/r/ndB/r/nA/r/n、/r/n1.8/r/nB/r/n、/r/n3./r/n6/r/nC/r/n、/r/ny./r/n3/r/nD/r/n、/r/nI0./r/n7/r/n答案：/r/nB/r/n.下列關(guān)于星型網(wǎng)絡(luò)拓撲結(jié)構(gòu)描述正確的是/r/n0/r/n。/r/nA/r/n、/r/n各接入點連至匯聚的鏈路確保為有線網(wǎng)絡(luò),確保網(wǎng)絡(luò)的可靠/r/n性/r/nB/r/n、/r/n具有很/r/n高/r/n的健壯/r/n性,/r/n不存在單點故障/r/nC/r/n、/r/n網(wǎng)絡(luò)負載過重時,會導(dǎo)致性能下降/r/nD/r/n、/r/n在星型拓撲中,某條線路的故障/r/n會/r/n影響其它線路通信/r/n答案：/r/nA/r/n.采用“路由/r/n器/r/n+無線/r/nAP”/r/n的組網(wǎng)模式,路由/r/n器/r/n放置在場景內(nèi)綜合布線匯聚點,選用帶有/r/nPOE/r/n功能的無線/r/nAP,/r/n將其分布在每個用戶需要位置房間的吊頂或天花上方,并將/r/nAP/r/n的/r/nSSID/r/n與密碼設(shè)置成與/r/n主/r/n路由器一致,所有用戶終端將根據(jù)信號的強弱自動切換連接設(shè)備,所有的/r/nAP/r/n需要設(shè)置成/r/n〇。/r/nA/r/n、/r/nFIT/r/n模式/r/nB/r/n、/r/nFAT/r/n模式/r/nGDHCP/r/n模式/r/nD/r/n、/r/n橋模式/r/n答案:/r/nB/r/n./r/n常見的網(wǎng)絡(luò)測速方法錯誤的/r/n〇/r/nA/r/n、/r/n第三方測速軟件測速（如/r/n360/r/n測速）/r/nB/r/n、/r/nhttp/r/n下載測速/r/nC/r/n、/r/n專業(yè)網(wǎng)站測速/r/nD/r/n、/r/n打開網(wǎng)頁的時/r/n間/r/n答案:/r/nD/r/n./r/n實現(xiàn)/r/nVLAN/r/n跨越交換機所依據(jù)的標準是:/r/n（）/r/nA/r/n、/r/n802.1d/r/nB/r/n、/r/n802.1q/r/nC/r/n、/r/n802./r/n3/r/nD/r/n、/r/n802.11b/r/n答案：/r/nB/r/n.下面哪個是光纖通信的缺點/r/n〇/r/nA/r/n、/r/n適應(yīng)能力差/r/nB/r/n、/r/n原材料緊缺/r/nC/r/n、/r/n傳輸衰耗系數(shù)大/r/nD/r/n、/r/n彎曲半徑不能過小/r/n答案：/r/nD/r/n.室內(nèi)組網(wǎng),住宅內(nèi)已有家庭布線不合理的情況應(yīng)進行適當(dāng)調(diào)整：按/r/n0/r/n匯聚至線纜匯聚點/r/nA/r/n、/r/n樹形結(jié)構(gòu)/r/nB/r/n、/r/n環(huán)形結(jié)構(gòu)/r/nC/r/n、/r/n總線型結(jié)構(gòu)/r/nD/r/n、/r/n星型結(jié)構(gòu)/r/n答案:/r/nD/r/n.A/r/n接口是手機/r/nAPP/r/n和智能家庭網(wǎng)關(guān)之間的〇接口,可以實現(xiàn)對智能家庭網(wǎng)關(guān)以及加載應(yīng)用的配置及管理等功能/r/nA/r/n、ー/r/nエ□、皿カ。/r/n,匹程邏輯/r/nB/r/n、/r/n本地邏輯/r/nC/r/n、/r/n本地物理/r/nD/r/n、/r/n遠程物理/r/n答案:/r/nB/r/n.光分路器設(shè)置位置在光交接箱/r/n時,/r/n0DN/r/n支線含有用戶接入層光纜的〇/r/nA/r/n、/r/n主干光纜/r/nB/r/n、/r/n配線光纜/r/nC/r/n、/r/n中繼光纜/r/nD/r/n、/r/n匯聚光纜/r/n答案：/r/nB/r/n.采用/r/n5/r/n類雙絞線的/r/n100M/r/n以太網(wǎng)的網(wǎng)線最大長度〇米。/r/nA/r/n、/r/n1000/r/nB/r/n、/r/n100/r/nC/r/n、/r/n200/r/nD/r/n、/r/n500/r/n答案：/r/nB/r/n.工程初檢后可投入試運行，試運行期。個月。/r/nA/r/n、/r/n3/r/nB/r/n、/r/n6/r/nC/r/n、/r/n9/r/nD/r/n、/r/nI2/r/n答案:/r/nA/r/n.修改電腦網(wǎng)卡/r/nIP/r/n地址,需進入電腦的〇/r/nA/r/n、/r/n網(wǎng)絡(luò)連接/r/nB/r/n、/r/n寬帶連接/r/nC/r/n、/r/n網(wǎng)上鄰居/r/nD/r/n、/r/n本地連接/r/n答案:/r/nD/r/n.在家庭網(wǎng)絡(luò)布線中,弱電管線跟強電管線的最小間距應(yīng)大于()/r/n15cm/r/n20cm/r/n30cm/r/n50cm/r/n答案：/r/nC/r/n.五類雙絞線帶寬可達〇:/r/n10MHZ/r/n100MHZ/r/n1000MHZ/r/n10000MHZ/r/n答案：/r/nB/r/n./r/n如果想要顯示/r/nDHCP/r/n自動分配給本機網(wǎng)卡的相關(guān)信息。并對其進行核查與更新,可以使用哪個網(wǎng)絡(luò)命令。/r/nPing/r/nipconfig/r/nC/r/n、/r/nNs/r/nlookup/r/nD/r/n、/r/nTracert/r/n答案：/r/nB/r/n.梯子不用時應(yīng)/r/n()/r/n在地上,并盡可能避免/r/n日/r/n曬雨淋,防止損壞,暫時不用的亦須橫倒放下,如限于工地環(huán)境或即將連續(xù)使用的,必須有人負責(zé)看管或用繩子扎/r/n住/r/n支持物。/r/nA/r/n、/r/n橫放/r/nB/r/n、/r/n豎放/r/nC/r/n、/r/n斜放/r/nD/r/n、/r/n以上均可/r/n答案:/r/nA/r/n.在光通信中,若光纖上承載的是波長為/r/n1490nm/r/n的光信號,每公里的損耗大概是:（）/r/nA/r/n、/r/n0.18dB/r/nB/r/n、/r/n0.36dB/r/nC/r/n、/r/n0.72dB/r/nD/r/n、/r/n0.90dB/r/n答案：/r/nB/r/n.一般情況下,蝶形引入光纜敷設(shè)時的牽引力不宜超過光纜允許張カ的〇;瞬間最大牽引力不得超過光纜允許張カ的/r/n100%,/r/n且主要牽引力應(yīng)加在光纜的加強構(gòu)件上。/r/nA/r/n、/r/n1/r/nB/r/n、/r/n0.8/r/nC/r/n、/r/n0./r/n6/r/nD/r/n、/r/n0.4/r/n答案：/r/nB/r/n.下面不是光功率計的作用的是〇/r/nA/r/n、/r/n測量光功率的大小/r/nB/r/n、/r/n測量線路損耗/r/nC/r/n、/r/n測量系統(tǒng)富裕度/r/nD/r/n、/r/n向光纖內(nèi)發(fā)射激光/r/n答案：/r/nD/r/n./r/n下面關(guān)于/r/nVLAN/r/n描述正確的是〇/r/nA/r/n、/r/n一個/r/nVLAN/r/n一/r/n個廣播域/r/nB/r/n、/r/nー個/r/nVLAN/r/n一/r/n個沖突域/r/nC/r/n、/r/nー個/r/nVLAN/r/n只能包含ー個物理端口/r/nD/r/n、/r/nVLAN/r/n只能按照端口進行劃分/r/n答案:/r/nA/r/n.Wi-Fi/r/n網(wǎng)絡(luò)參數(shù)的配置方案,/r/nAC+/r/n瘦/r/nAP/r/n的模式中必須采用/r/n0/r/nA/r/n、/r/n路由模式/r/nB/r/n、/r/n橋接模式/r/nC/r/n、/r/n混合模式/r/nD/r/n、/r/nDHCP/r/n模式/r/n答案…/r/n.兩個路由器通過有線實現(xiàn)同一個/r/nSSID,/r/n同一個網(wǎng)段,這種組網(wǎng)方式為以下哪種?〇/r/nA/r/n、/r/nWOC/r/n組網(wǎng)/r/nB/r/n、/r/nEOC/r/n組網(wǎng)/r/nC/r/n、/r/n有線橋接/r/nD/r/n、/r/n無線橋接/r/n答案:/r/nC/r/n7&/r/n家中五類線綜合布線完善,但多媒體箱內(nèi)無電源,我可以通過（）技術(shù)幫助用戶解決問題。/r/nA/r/n、/r/nEOC/r/nB/r/n、/r/nWOC/r/nC/r/n、/r/nPOE/r/nD/r/n、/r/nAP/r/n面板/r/n答案：/r/nC/r/n77/r/n.電カ線適配器傳輸距離是多大/r/n0/r/n。/r/n30-50/r/n米/r/nB/r/n、/r/n50700/r/n米/r/nC100-200/r/n米/r/nD200-300/r/n米/r/n答案：/r/nD/r/n.寬帶無法上網(wǎng)提示錯誤/r/n769,/r/n具體含義是〇。/r/nA/r/n、/r/n帳號密碼錯/r/nB/r/n、/r/n遠程無法聯(lián)接/r/nC/r/n、/r/n終端故障/r/nD/r/n、/r/n本地連接禁用了或者網(wǎng)卡驅(qū)動沒裝好/r/n答案:/r/nD/r/n.PON/r/n技術(shù)采用的拓撲結(jié)構(gòu)是/r/n0/r/n。/r/nA/r/n、/r/nP2P/r/nP2MP/r/nGMP2MP/r/nD/r/n、/r/nMP2P/r/n答案:/r/nB/r/n.以下哪種不是高清分辨率:/r/n（）/r/ny20*576/r/n1/r/n280*720/r/n1080i/r/n1080p/r/n答案：/r/nA/r/n./r/n網(wǎng)線的制作標準中/r/nT568A/r/n線序的排列方式是〇/r/nA/r/n、/r/n白綠/綠/白橙/藍/白藍/橙/白綜/棕/r/nB/r/n、/r/n白綠/綠/白橙/藍/白藍/橙/棕/白綜/r/nC/r/n、/r/n綠/白綠/白橙/藍/白藍/橙/白綜/棕/r/nD/r/n、/r/n綠/白綠/白橙/藍/白藍/橙/白綜/棕/r/n答案：/r/nA/r/n.小度可以將以下哪個視頻平臺的內(nèi)容投屏到電視上去?〇/r/nA/r/n、/r/n愛奇藝/r/nB/r/n、/r/n騰訊/r/nC/r/n、/r/nB/r/n站/r/nD/r/n、/r/n咪咕視頻/r/n答案:/r/nA/r/n.國家規(guī)定,室內(nèi)/r/nAP/r/n的發(fā)射功率為〇/r/nmW/r/n500mW/r/n200mW/r/n100mW/r/n20mW/r/n答案:/r/nC/r/n84.ZigBee/r/n〇負責(zé)設(shè)備間無線數(shù)據(jù)鏈路的建立、維護和結(jié)束。/r/nA/r/n、/r/n物理層/r/nB/r/n、/r/nMAC/r/n層/r/nC/r/n、/r/n網(wǎng)絡(luò)/安全層/r/nD/r/n、/r/n支持/應(yīng)用層/r/n答案：/r/nB/r/n85/r/n.在給用戶做智能組網(wǎng)時,以下/r/nWi-Fi/r/n信號強度是最好的?〇/r/n40dBm/r/n50dBm/r/nCx60dBm/r/nD/r/n、/r/n70dBm/r/n答案：/r/nA/r/n./r/n蝶形引入光纜采用墻面開孔方式入戶:開孔標準為自用戶室內(nèi)往用戶室外進行開孔,開孔方向是向下傾斜()度角,防止雨水倒灌至用戶室內(nèi)。/r/nA/r/n、/r/n10/r/nB/r/n、/r/n20/r/nC/r/n、/r/n30/r/nD/r/n、/r/n40/r/n答案：/r/nA/r/n.PON/r/n系統(tǒng)中的/r/nONU/r/n設(shè)備位于/r/nOS/r/n1/r/n7/r/n層模型的哪ー層?〇/r/nA/r/n、/r/n物理層/r/nB/r/n、/r/n數(shù)據(jù)鏈路層/r/nC/r/n、/r/n網(wǎng)絡(luò)層/r/nD/r/n、/r/n傳輸層/r/n答案:/r/nB/r/n.架空光纜每桿作一處伸縮彎,伸縮彎在電桿兩側(cè)的掛鉤間下垂〇/r/nmm,/r/n并用塑料管保護。/r/nA/r/n、/r/n150/r/nB/r/n、/r/n200/r/nC/r/n、/r/n250/r/nD/r/n、/r/n300/r/n答案:/r/nC/r/n.數(shù)據(jù)封裝在數(shù)據(jù)鏈路層被稱作〇/r/nA/r/n、/r/n數(shù)據(jù)包/r/nB/r/n、/r/n數(shù)據(jù)段/r/nC/r/n、/r/n幀/r/nD/r/n、/r/n塊/r/n答案：/r/nC/r/n./r/n有關(guān)/r/nEPONONU/r/n測距說法錯誤的是/r/n0/r/nA/r/n、/r/n在注冊過程中,/r/nOLT/r/n對新加入的/r/nONU/r/n啟動測距過程/r/nOLT/r/n使用/r/nRTT/r/n來調(diào)整每個/r/n0/r/nNU/r/n的授權(quán)時間/r/nB/r/n、/r/nOLT/r/n也可以在任何收到/r/nMPCPPDU/r/n的/r/n時/r/n候啟動測距功能/r/nC/r/n、/r/n在/r/nEPON/r/n系統(tǒng)中,解決/r/nONU/r/n的注冊沖突的方案有兩種:隨機延遲時間法和隨機跳過開窗法/r/nD/r/n、/r/n以上都不對/r/n答案：/r/nD/r/n.PON/r/n系統(tǒng)采用單纖雙向技術(shù),上下行信號采用信號波長為〇/r/nA/r/n、/r/n上行/r/n1490nm//r/n下行/r/n1310nm/r/nB/r/n、/r/n上行/r/n1310nm//r/n下行/r/n1490/r/nnm/r/nC/r/n、/r/n上行/r/n1550nm/r/n//r/n下行/r/n1310nm/r/nD/r/n、上行/r/n!/r/n31Onm//r/n下行/r/n1550nm/r/n答案:/r/nB/r/n./r/n環(huán)形鋼筋混凝土電桿結(jié)構(gòu)應(yīng)為錐形體,錐度為/r/n1/75/r/n〇/r/n!/65/r/n1/70/r/n1/75/r/n1/80/r/n答案:/r/nC/r/n.可以將以太網(wǎng)信號通過同軸電纜進行傳輸?shù)募夹g(shù)是/r/nA/r/n、/r/nEOC/r/nB/r/n、/r/nWOC/r/nC/r/n、/r/nPOE/r/nD/r/nAP/r/n面板/r/n答案:/r/nA/r/n.某/r/nL2/r/n交換機有/r/n4/r/n個端口,它的廣播域和沖突域的個數(shù)分別是/r/n（）/r/nA/r/nゝ/r/n1/r/n和/r/n4/r/nB/r/n、/r/n4/r/n和/r/n4/r/nC/r/n、/r/n1/r/n和/r/n1/r/nD/r/n、/r/n4/r/n和/r/n1/r/n答案:/r/nA/r/n.EPON/r/n接口的有效帶寬約為〇/r/nM/r/n。/r/nA/r/n、/r/n1.25/r/nB/r/n、/r/n960/r/n1024/r/n1250/r/n答案：/r/nB/r/n./r/n移動看家家庭安防產(chǎn)品的應(yīng)用需要使用到哪個/r/napp/r/nA/r/n、/r/n移動掌廳/r/nB/r/n、/r/n學(xué)習(xí)強國/r/nC/r/n、/r/n和家呆/r/nD/r/n、/r/n和目/r/n答案:/r/nC/r/n.如果/r/n光衰正常,/r/nONU/r/n在/r/nOLT/r/n上/r/n不能自發(fā)現(xiàn),以下哪一項原因是錯誤的/r/n〇/r/nA/r/n、/r/nONU/r/n至/r/nOLT/r/n的距/r/n離/r/n超過/r/n20KM/r/nB/r/n、/r/nOLT/r/n已經(jīng)離線添加了/r/nONU/r/n的注冊數(shù)/r/n據(jù)/r/nC/r/n、/r/nONU/r/n或者/r/nOLT/r/n的/r/nPON/r/n口故障/r/nD/r/n、/r/n用戶欠費/r/n答案:/r/nD/r/n./r/n如果ー個網(wǎng)絡(luò)中的計算機數(shù)量過多,可能產(chǎn)生廣播/r/n風(fēng)暴導(dǎo)/r/n致網(wǎng)絡(luò)性能下降,一般情況下可以采/r/n用/r/n〇/r/n來隔絕廣播。/r/nA/r/n、/r/n集線器/r/nB/r/n、/r/n交換機/r/nC/r/n、/r/n路由器/r/nD/r/n、/r/n網(wǎng)橋/r/n答案：/r/nC/r/n.充氣系統(tǒng)的輸出氣壓,對全塑電纜應(yīng)/r/nく〇/r/nKpa/r/n。/r/nA/r/n、/r/n50/r/nB/r/n、/r/n60/r/nC/r/n、/r/n70/r/nD/r/n、/r/n80/r/n答案：/r/nC/r/n.測試用戶本地網(wǎng)卡是否正常可以使用什么命令來測試/r/n0/r/nA/r/n、/r/nping192.168./r/n1./r/n1/r/nB/r/n、/r/nping192.168.0./r/n1/r/nC/r/n、/r/nping127.0.0./r/n1/r/nD/r/n、/r/np/r/ni/r/nng10.0.0./r/n1/r/n答案：/r/nc/r/n.網(wǎng)絡(luò)方面推薦用戶至少使用/r/n0/r/n以上光纖寬帶/r/nA/r/n、/r/n10M/r/nB/r/n、/r/n20M/r/nC/r/n、/r/n50M/r/nD/r/n、/r/n100M/r/n答案:/r/nD/r/n.關(guān)于/r/n2.4G/r/n無線頻段說法正確的是/r/n〇/r/nA/r/n、/r/n中國無線頻段信道的劃分和歐洲是一致的,為/r/n13/r/n個信道,但是日本的信道有/r/n14/r/n個/r/nB/r/n、/r/n無線信道之/r/n間/r/n的設(shè)置是有要求的,在同一個/r/n覆/r/n蓋區(qū)域內(nèi)，理論上最多只有三個互不干擾的信道同時使用,也就是說在同一覆蓋區(qū)域內(nèi)最多可以放置/r/n3/r/n個/r/nAP/r/nC/r/n、/r/n在同一覆蓋區(qū)域內(nèi),若放置了/r/n3/r/n個/r/nAP,/r/n為了互不干擾則/r/nAP/r/n的信道可以規(guī)劃為/r/n2/r/n、/r/n6/r/n、/r/n11/r/nD/r/n、/r/n根據(jù)信道規(guī)劃原則進行蜂窩式部署/r/nAP/r/n的時候,不可以通過降低/r/nAP/r/n發(fā)射功/r/n率/r/n的方法來減少信號干擾/r/n答案:/r/nB/r/n.在/r/nWindows/r/n操作系統(tǒng)中,通?？梢栽?r/nMS-DOS/r/n命令行中輸入/r/n〇/r/n命令可以檢測網(wǎng)絡(luò)的連通性/r/nA/r/n、/r/ni/r/npconf/r/ni/r/ng/r/nB/r/n、/r/ndir/r/nnetwork/r/nping/r/n答案：/r/nD/r/n104/r/n.要實現(xiàn)寬帶上網(wǎng),除了正確的連接設(shè)備外，還需要在計算機上安裝“虛擬撥號”軟件，各種虛擬撥號軟件的本質(zhì)都是實現(xiàn)〇協(xié)議/r/nTCP/IP/r/nPPPOE/r/nNetBIOS/r/nI/r/nPX/SPX/r/n答案：/r/nB/r/n105.802./r/n11/r/nAC,/r/n單空間流，最大支持無線傳輸速率為/r/n()/r/nA/r/n、/r/n150M/r/n1200M/r/n433M/r/n300M/r/n答案:/r/nC/r/n.以下哪句為服務(wù)禁用語〇/r/nA/r/n、/r/n“非常抱歉,我遲到了,耽誤您時間請原諒!”/r/nB/r/n、/r/n“請問您想將/r/n??/r/n業(yè)務(wù)終端按放在什么位置?”/r/nC/r/n、/r/n“由于/r/n??/r/n具體原因,需要改布線,您看行嗎?”/r/nD/r/n、/r/n“不知道，這事不歸我們管?！?r/n答案:/r/nD/r/n.埋式電纜距建筑紅線（平行）最小凈距（）米。/r/nA/r/n、/r/n0.5/r/nB/r/n、/r/n1/r/nC/r/n、/r/n1.5/r/nD/r/n、/r/n2/r/n答案：/r/nB/r/n.有關(guān)/r/nONU/r/n說法錯誤的是〇/r/nA/r/n、/r/n選擇接收/r/nOLT/r/n發(fā)送的廣播數(shù)據(jù)/r/nB/r/n、/r/n響應(yīng)/r/nOLT/r/n發(fā)出的測距及功率控制命令,并作相應(yīng)的調(diào)整/r/nC/r/n、/r/n不對用戶的以太網(wǎng)數(shù)據(jù)進行緩存,直接在/r/nOLT/r/n分配的發(fā)送窗口中向上行方向發(fā)送/r/nD/r/n、/r/n其它相關(guān)的以太網(wǎng)功能/r/n答案：/r/nC/r/n.由于光信號來自遠近不同的光網(wǎng)絡(luò)單元/r/n（ONU）/r/n,/r/n所以可能產(chǎn)生相應(yīng)的信號沖突所以/r/nEPON/r/n系統(tǒng)采用〇/r/nA/r/n、/r/n突發(fā)同步技術(shù)/r/nB/r/n、/r/n大動態(tài)范圍光功率接受/r/nC/r/n、/r/n測距補償技術(shù)/r/nD/r/n、/r/n帶寬分配技術(shù)/r/n答案:/r/nC/r/n.路由器的無線/r/nWiFi2.4Ghz/r/n頻段的/r/nWiFi/r/n總/r/n共有/r/n()/r/n個信道。/r/nA/r/n、/r/n8/r/nB/r/n、/r/n12/r/nC/r/n、/r/n14/r/nD/r/n、/r/n32/r/n答案:/r/nC/r/n./r/nWIFI/r/n指的是/r/n〇〇/r/nA/r/n、/r/nー/r/n種可以將個人電腦、手機等終端以有線方式進行相互連接的技術(shù)/r/nB/r/n、/r/nー/r/n種可以將個人電腦、手機等終端以無線方式進行相互連接的技術(shù)/r/nGCDMA/r/n網(wǎng)絡(luò)/r/nD/r/n、/r/nGSM/r/n網(wǎng)絡(luò)/r/n答案：/r/nB/r/n.管道段長應(yīng)按人孔位置而定。高等級公路上的通信管道,段長最大不得超過/r/n〇/r/nM/r/nA/r/n、/r/n120/r/nB/r/n、/r/n150/r/nC/r/n、/r/n200/r/nD/r/n、/r/n250/r/n答案：/r/nD/r/n./r/nGPON/r/n標準中目/r/n前/r/n可以提供上下行對稱的速率是/r/n()/r/n1/r/n./r/n25Gbps/r/nB/r/n、/r/n1/r/n.OGbps/r/nC/r/n、/r/n2.OGbps/r/nD/r/n、/r/n2.5Gbps/r/n答案：/r/nD/r/n.無線/r/nAP/r/n面板中的無線隔離起什么作用?/r/n〇/r/nA/r/n、/r/n關(guān)閉無線信號/r/nB/r/n、/r/n關(guān)閉無線信號的廣播功能/r/nC/r/n、/r/n限制連接終端之間直接訪問/r/nD/r/n、/r/n屏蔽除已連接之外的其他無線信號,防止干擾/r/n答案:/r/nC/r/n.802./r/n11/r/ng/r/n規(guī)格使用哪個/r/nRF/r/n頻譜〇/r/nA/r/n、/r/n5.1GHz/r/n5.8GHz/r/nG2.4GHz/r/nD/r/n、/r/n60GHz/r/n答案:/r/nC/r/n./r/n多人可以ー起觀看直播視頻么?/r/nA/r/n、/r/n不可以/r/nB/r/n、/r/n可以分享給無數(shù)人/r/nC/r/n、/r/n可以不通過綁定用戶同意直接分享/r/nD/r/n、/r/n綁定用戶分享給有限個人/r/n答案：/r/nD/r/n.中國/r/n5.1Hz/r/n頻段,可以使用無線信道個數(shù)為/r/n0/r/n。/r/nA/r/n、/r/n3/r/nB/r/n、/r/n5/r/nC/r/n、/r/n8/r/nD/r/n、/r/n10/r/n答案：/r/nC/r/n.IP/r/n地址為/r/n192.168.10./r/n234/r/n掩碼/r/n255.255.255./r/n192,/r/n則該/r/nIP/r/n所在網(wǎng)絡(luò)的網(wǎng)絡(luò)地址為/r/n()。/r/nA/r/n、/r/n192.168.10./r/n192/r/nB/r/n、/r/n192.168.10./r/n128/r/nG192.168.10./r/n191/r/nD/r/n、/r/n/r/n答案：/r/nA/r/n.WiFi/r/n檢查中主要測試〇和無線速率。/r/nA/r/n、/r/n無線強度/r/nB/r/n、/r/nping/r/n值/r/nC/r/n、/r/n無線頻寬/r/nD/r/n、/r/n信道干擾/r/n答案:/r/nA/r/n.光纖涂覆層的作用錯誤的有/r/n（）/r/n。/r/nA/r/n、/r/n增強光纖的強度/r/nB/r/n、/r/n色譜識別/r/nC/r/n、/r/n增加光纖的柔韌性/r/nD/r/n、/r/n反射光/r/n答案:/r/nD/r/n./r/n以下哪項技術(shù)用于減少由于網(wǎng)絡(luò)丟包造成的組播業(yè)務(wù)播放卡頓〇/r/nA/r/n、/r/nFEC/r/nB/r/n、/r/nARQ/r/nC/r/n、/r/nFCC/r/nD/r/n、/r/n雙棧/r/n答案：/r/nA/r/n.在中國,/r/n2.4G/r/n頻段開放了〇個頻段,子信道劃分間隔是/r/n5MHz,WiFi/r/n的エ作頻寬是/r/n22MHz/r/n,所以相鄰信道的/r/nWi-Fi/r/n信號之間有干擾,必須至少間隔〇個子信道オ相互無干擾。/r/nA/r/n、/r/n114/r/nB/r/n、/r/n115/r/nC/r/n、/r/n134/r/nD/r/n、/r/n135/r/n答案：/r/nD/r/n.攝像頭支持語音對講功能,需具備什么元器件?/r/nA/r/n、/r/n揚聲器/r/nB/r/n、/r/n麥克風(fēng)/r/nC/r/n、/r/n揚聲器和麥克風(fēng)/r/nD/r/n、/r/nPOE/r/n接口/r/n答案:/r/nC/r/n./r/n19/r/n寸標準機柜內(nèi)設(shè)備安裝所占高度用一個特殊單位/r/n“U”/r/n表示,/r/n1U/r/n二/r/n〇/r/nmm/r/n。/r/nA/r/n、/r/n44./r/n45/r/nB/r/n、/r/n45/r/nC/r/n、/r/n6/r/nD/r/n、/r/n80/r/n答案:/r/nA/r/n.W/r/n圧/r/nI/r/n屬于什么輻射類型?〇/r/nA/r/n、/r/n電離輻射/r/nB/r/n、/r/n電磁輻射/r/nC/r/n、/r/n太陽輻射/r/nD/r/n、/r/n熱輻射/r/n答案：/r/nB/r/n.光纖衰耗系數(shù)(含固定熔接損耗):上行/r/n(ONU-OLT,1310nm):/r/n〇/r/n1/r/n實際約/r/n為/r/n0.36dB/km/r/n0.1dB/km/r/n0.2dB/km/r/n0.3dB/km/r/n0.4dB/km/r/n答案：/r/nD/r/n2.4G/r/n無線頻段下,完全互不干擾的信道有〇個?/r/nA/r/n、/r/n14/r/nB/r/n、/r/n13/r/nC/r/n、/r/n3/r/nD/r/n、/r/n11/r/n答案：/r/nC/r/nWLAN/r/n采用的哪種信道復(fù)用方式〇/r/nCSMA/CA/r/nCSMA/CB/r/nCSMA/CC/r/nCSMA/CD/r/n答案:/r/nA/r/n.液體或可/r/n熔/r/n化的固體物質(zhì)火災(zāi)屬于/r/n〇/r/n類火災(zāi)。/r/nA/r/n、/r/nA/r/nB/r/n、/r/nB/r/nC/r/n、/r/nC/r/n答案:/r/nB/r/n./r/n下列組網(wǎng)設(shè)備中,工作在物理層的是/r/n()。/r/nA/r/n、/r/nP0E/r/n交換機/r/nB/r/n、/r/n無線放大器/r/nC/r/n、/r/n分布式路由/r/n器/r/nD/r/n、/r/nAP/r/n面板/r/n答案：/r/nB/r/n.鋪設(shè)塑料管道時,當(dāng)土質(zhì)為巖石的地區(qū),挖好溝槽后/r/n應(yīng)回填〇/r/nmm/r/n細砂或細土。/r/nA/r/n、/r/n50/r/nB/r/n、/r/n100/r/nC/r/n、/r/n150/r/nD/r/n、/r/n200/r/n答案：/r/nD/r/n.組網(wǎng)業(yè)務(wù)完成后,我們不推薦用戶使用手機的/r/n()/r/n軟件來連接/r/nWIFI,/r/n會/r/nWI/r/nFI/r/n密碼泄露，導(dǎo)致蹭網(wǎng)的情況/r/n出現(xiàn)。/r/nA/r/n、/r/nWIFI/r/n萬能鑰匙/r/nB/r/n、/r/n官方路由/r/n器/r/n管理軟件/r/nG/r/n和家親/r/nAPP/r/nD/r/n、/r/n無線連接/r/n答案:/r/nA/r/n.采/r/n用/r/n568B/r/n標準制作網(wǎng)線時,第二根線的色譜為〇/r/nA/r/n、/r/n橙白/r/nB/r/n、/r/n藍/r/nC/r/n、/r/n橙/r/nD/r/n、/r/n綠白/r/n答案:/r/nC/r/n.因為/r/nAP/r/n是共享設(shè)備,所以為了更好地提供無線客戶端的接入帶寬,建議ー個/r/nAP/r/n最多可帶〇個用戶。/r/n10-15/r/n20-30/r/n30-50/r/n50-1/r/n00/r/n答案：/r/nB/r/n135/r/n,下列組網(wǎng)設(shè)備中,不工作在數(shù)據(jù)鏈路層的是〇/r/nA/r/n、/r/n無線路由器/r/nB/r/n、/r/nPOE/r/n交換機/r/nC/r/n、/r/n無線放大器/r/nD/r/n、/r/nAP/r/n面板/r/n答案：/r/nA/r/n./r/nWLAN/r/n中,基于/r/nWEB/r/n的認證流程,通過哪個服務(wù)器認證用戶信息?〇/r/nA/r/n、/r/nRadius/r/n服務(wù)器/r/nBiPortal/r/n服務(wù)器/r/nGWEB/r/n服務(wù)器/r/nD/r/n、/r/nEPG/r/n服務(wù)器/r/n答案：/r/nA/r/n.以下說法錯誤的是?/r/n（）/r/nA/r/n、/r/n小度的兒童模式可以實現(xiàn)內(nèi)容過濾,推薦兒童適齡資源。/r/nB/r/n、/r/n用戶可以通過小度進行網(wǎng)易云音樂的播放。/r/nCv/r/n用戶通過手機上的小度/r/nApp/r/n遠程看到家中的動態(tài)/r/nD/r/n、/r/n用戶可以通過小度/r/nAPP/r/n設(shè)置設(shè)備的使用時長/r/n答案:/r/nB/r/n.Wi-Fi/r/n網(wǎng)絡(luò)參數(shù)的配置方案,/r/nAC+/r/n瘦/r/nAP/r/n的模式中必須采用/r/n（）/r/nA/r/n、/r/n路由模式/r/nB/r/n、/r/n橋接模式/r/nC/r/n、/r/n混合模式/r/nD/r/n、/r/nDHCP/r/n模式/r/n答案:/r/nB/r/n.PON/r/n的無源特性主要體現(xiàn)在哪個位置（）/r/n。/r/nA/r/n、/r/nOLT/r/nB/r/n、/r/nPOS/r/nC/r/n、/r/nODN/r/nD/r/n、/r/nONU/r/n答案：/r/nC/r/n.管道鋪設(shè)應(yīng)有一定的坡度,管道坡度應(yīng)為/r/n（）/r/n。/r/nA/r/n、/r/n1.5%/r/n。/r/n?/r/n2%/r/n。/r/nB/r/n、/r/n2%/r/n〇/r/n?/r/n2./r/n5%/r/n。/r/nC/r/n、/r/n2./r/n5%/r/n。/r/n?/r/n3%/r/n。/r/nD/r/n\3/r/n%/r/n〇/r/n?/r/n4%/r/n〇/r/n答案：/r/nD/r/n.用戶家,/r/n75m/r/nユ/r/n面積、二室ー廳,平時就用手機看看新聞、查查股票,有一個/r/nTPLINK/r/n路由在客廳,但臥室無線信號不太穩(wěn)定,以下哪種組網(wǎng)方式比較貼合該場景〇/r/nA/r/n、/r/n無線擴展器/r/nB/r/n、/r/n有線橋接/r/nc/r/n、/r/n電カ設(shè)備/r/nD/r/n、/r/nAP/r/n面板/r/n答案:/r/nA/r/n.計算機病毒是ー種〇。/r/nA/r/n、/r/n生物病菌/r/nB/r/n、/r/n具有破壞性的程序/r/nC/r/n、/r/n有害文字/r/nD/r/n、/r/n有毒物質(zhì)/r/n答案:/r/nB/r/n.光纖熔接技術(shù)又叫做/r/n0/r/n。/r/nA/r/n、/r/n熱熔技術(shù)/r/nB/r/n、/r/n冷溶技術(shù)/r/nC/r/n、/r/n機械拼接技術(shù)/r/nD/r/n、/r/n拋光加箍技術(shù)/r/n答案:/r/nA/r/n.802.11g/r/n物理層理論最大速率能達到多少?/r/n（）/r/nA/r/n、/r/n11M/r/nB/r/n、/r/n54M/r/n108M/r/n600M/r/n答案：/r/nB/r/n.EPON/r/n為點對多點系統(tǒng),為保證上行數(shù)據(jù)有效傳輸,系統(tǒng)采用了以下哪種技術(shù)/r/n（）/r/nA/r/n、/r/nFDM/r/nB/r/n、/r/nWDM/r/nTDMA/r/nCDMA/r/n答案：/r/nC/r/n.小度在家/r/n1C/r/n暢享的屏幕分辨率是多少?〇/r/nA/r/n、/r/n1024*600/r/nB/r/n、/r/n1/r/n280*800/r/nG960*480/r/nD/r/n、/r/n1024*700/r/n答案:/r/nA/r/n.在描述信息傳輸中/r/nbps/r/n表示的是/r/n（）/r/nA/r/n、/r/n每秒傳輸?shù)淖止?jié)數(shù)/r/nB/r/n、/r/n每秒傳輸?shù)闹噶顢?shù)/r/nC/r/n、/r/n每秒傳輸?shù)淖謹?shù)/r/nD/r/n、/r/n每秒傳輸?shù)谋忍匚粩?shù)/r/n答案:/r/nD/r/n.監(jiān)控攝像頭的無線網(wǎng)絡(luò)接入方式為〇。/r/nWiFi/r/nZigBee/r/nC/r/n、/r/n藍牙/r/nD/r/n、/r/nNFC/r/n答案：/r/nA/r/nZigBee/r/n無線通信技/r/n術(shù)/r/n的標準傳輸距離一般是〇。/r/nA/r/n、/r/n1/r/n00m-1km/r/nB/r/n、/r/n10—75m/r/nC/r/n、/r/n1km/r/n—/r/n2km/r/nD/r/n、/r/n無限遠/r/n答案：/r/nB/r/n.安裝監(jiān)控時,如需開孔洞,需從室內(nèi)向室外開孔,向下傾斜。度開孔。/r/nA/r/n、/r/n8/r/nB/r/n、/r/nI0/r/nC/r/n、/r/n15/r/nD/r/n、/r/n20/r/n答案：/r/nB/r/n.在/r/n2.4G/r/n頻段,中國及北美選擇的非重疊信道值為：〇/r/nA/r/n、/r/n/r/n1611/r/nB/r/n、/r/n1713/r/n2611/r/n2613/r/n答案:/r/nA/r/n.寬帶無法上網(wǎng),提示遠程計算機沒響應(yīng)的代碼為/r/n〇。/r/nA/r/n、/r/n678/r/nB/r/n、/r/n691/r/nC/r/n、/r/n645/r/nD/r/n、/r/n623/r/n答案:/r/nA/r/n153/r/n,避雷線的地下延伸部分應(yīng)埋在地面〇/r/nmm/r/n以上。/r/nA/r/n、/r/n400/r/nB/r/n、/r/n500/r/nC/r/n、/r/n600/r/nD/r/n、/r/n700/r/n答案：/r/nD/r/n.寬帶撥號時出現(xiàn)錯誤/r/n692,/r/n原因/r/n〇。/r/nA/r/n、/r/n電信機房故障/r/nB/r/n、/r/n網(wǎng)卡故障/r/nGMODEM/r/n故障，斷電重啟/r/nMODEM/r/nD/r/n、/r/n電話線路故障/r/n答案：/r/nC/r/n./r/n普聯(lián)/r/n(TP-LINK)SG1005P/r/n是ー款符合/r/n802.3af/at/r/n標準的/r/n5/r/n口千兆/r/nPOE/r/n交換機，整機可提供/r/n57W/r/n的總輸出功率,普聯(lián)/r/nAP450I-P0E/r/n面板/r/nAP/r/n的整機最大功耗為/r/n4.23W,/r/n則/r/n1/r/n臺/r/nSG1005P/r/n最多可以配合/r/n()/r/n臺/r/nAP450I-P0E/r/n面板/r/nAP/r/n使用。/r/nA/r/n、/r/n4/r/nB/r/n、/r/n5/r/nC/r/n、/r/n10/r/nD/r/n、/r/n13/r/n答案：/r/nA/r/n./r/nWIFI/r/n雙頻是/r/n()/r/nGhz/r/n和/r/n5Ghz/r/n。/r/nA/r/n、/r/n1.8/r/nB/r/n、/r/n2.4/r/nC/r/n、/r/n3/r/nD/r/n、/r/n4/r/n答案:/r/nB/r/n.無線路由器一般都會提供“允許〇廣播"功能。如果不想讓自己的無線網(wǎng)絡(luò)被別人通過〇名稱搜索到,那么最好“禁止〇廣播"。你的無線網(wǎng)絡(luò)仍然可以使用,只是不會出現(xiàn)在其他人所搜索到的可用網(wǎng)絡(luò)列表中。/r/nA/r/n、/r/nWIFI/r/nB/r/n、/r/nSSID/r/nCDMA/r/nFTTB/r/n答案:/r/nB/r/n.關(guān)于/r/n2.4G/r/n無線頻段說法正確的是〇/r/nA/r/n、/r/n中國無線頻段信道的劃分和歐洲是一致的,為/r/n13/r/n個信道，但是日本的信道有/r/n14/r/n個/r/nB/r/n、/r/n無線信道之間的設(shè)置是有要求的,在同一個覆蓋區(qū)域內(nèi),理論上最多只有三個互不干擾的信道同時使用,也就是說在同一覆蓋區(qū)域內(nèi)最多可以放置/r/n3/r/n個/r/nAP/r/nC/r/n、/r/n在同一覆蓋區(qū)域內(nèi),若放置了/r/n3/r/n個/r/nAP,/r/n為了互不干擾則/r/nAP/r/n的信道可以規(guī)劃為/r/n2/r/n、/r/n6/r/n、/r/n11/r/nD/r/n、/r/n根據(jù)信道規(guī)劃原則進行蜂窩式部署/r/nAP/r/n的時候,不可以通過降低/r/nAP/r/n發(fā)射功率的方法來減少信號干擾/r/n答案：/r/nB/r/n.智慧家庭的信息安全隱患不包括〇。/r/nA/r/n、/r/n訪問權(quán)限使用默認設(shè)置/r/nB/r/n、/r/n禁止設(shè)備聯(lián)網(wǎng)更新/r/nC/r/n、/r/n家庭網(wǎng)關(guān)采用市電供電/r/nD/r/n、/r/n設(shè)備采用默認密碼/r/n答案:/r/nc/r/n.寬帶無法上網(wǎng),提示遠程計算機沒響應(yīng)的代碼為/r/n〇。/r/nA/r/n、/r/n678/r/nB/r/n、/r/n691/r/nC/r/n、/r/n645/r/nD/r/n、/r/n623/r/n答案:/r/nA/r/n.修改電腦網(wǎng)卡/r/nIP/r/n地址,需進入電腦的/r/n〇/r/nA/r/n、/r/n網(wǎng)絡(luò)連接/r/nB/r/n、/r/n寬帶連接/r/nC/r/n、/r/n網(wǎng)上鄰居/r/nD/r/n、/r/n本地連接/r/n答案：/r/nD/r/n.引入光纜應(yīng)在/r/n用/r/n戶設(shè)備終端處余留適當(dāng)長度以便用戶使用,不可過長,/r/n（）/r/n米為宜,且必須規(guī)范綁扎并向用戶強調(diào)光纖的維護要求和注意事項/r/nA/r/n、/r/n//r/n3/r/nB/r/n、/r/n3~5/r/nC/r/n、/r/n5~7/r/nD/r/n、/r/n6~8/r/n答案：/r/nB/r/n.802./r/n11/r/n幀結(jié)構(gòu)中，有幾個/r/naddress?/r/n〇/r/nA/r/n、/r/n2/r/nB/r/n、/r/n3/r/nC/r/n、/r/n4/r/nD/r/n、/r/n5/r/n答案：/r/nC/r/n./r/n當(dāng)前主流電カ貓都支持/r/n1/r/n個母貓配合多達/r/n0/r/n個子貓使用。/r/nA/r/n、/r/n1/r/nB/r/n、/r/n3/r/nC/r/n、/r/n7/r/nD/r/n、/r/n10/r/n答案:/r/nC/r/n./r/n雙絞線對由兩條具有絕緣保護層的銅芯線按一定密度互相纏繞在ー起組成,纏繞的目的是〇/r/nA/r/n、/r/n提高傳輸速度/r/nB/r/n、/r/n降低成本/r/nC/r/n、/r/n降低信號干擾的程度/r/nD/r/n、/r/n提高電纜的物理強度/r/n答案:/r/nC/r/n.下列服務(wù)中,如果不開啟則無法使用/r/nwindows/r/n配置無線網(wǎng)絡(luò)是〇/r/nA/r/n、/r/nWZC/r/nB/r/n、/r/nRemoteRegistry/r/nC/r/n、/r/nMessenger/r/nD/r/n、/r/nTeinet/r/n答案：/r/nA/r/n.水泥管道管群組合宜組成矩形體,高度宜大于其寬度,但不宜超過/r/n0/r/n倍/r/nA/r/n、/r/n!/r/nB/r/n、/r/n1.5/r/nC/r/n、/r/n2/r/nD/r/n、/r/n2.5/r/n答案：/r/nA/r/n./r/n〇是目前寬帶最寬的傳輸介質(zhì)。/r/nA/r/n、/r/n銅軸電纜/r/nB/r/n、/r/n雙絞線/r/nC/r/n、/r/n電話線/r/nD/r/n、/r/n光纖/r/n答案：/r/nD/r/n.無線/r/nAP/r/n面板中的無線隔離起什么作用?/r/n0/r/nA/r/n、/r/n關(guān)閉無線信號/r/nB/r/n、/r/n關(guān)閉無線信號的廣播功能/r/nC/r/n、/r/n限制連接終端之間直接訪問/r/nD/r/n、/r/n屏蔽除已連接之外的其他無線信號,防止干擾/r/n答案:/r/nC/r/n./r/n架空電纜線路不宜與電力線路合桿架設(shè)。在不可避免時,要采取技/r/n術(shù)/r/n防護措施和與相關(guān)部門簽訂協(xié)議，與/r/n10KV/r/n電カ線合桿時，電カ線與通信電纜間凈距不應(yīng)小于〇/r/nm,/r/n且通信電纜應(yīng)架設(shè)在電カ線路的下部。/r/nA/r/n、/r/n1/r/nB/r/n、/r/n1.5/r/nC/r/n、/r/n2/r/nD/r/n、/r/n2.5/r/n答案:/r/nD/r/n.用戶反映家中路由器數(shù)量過多,導(dǎo)致從客廳移動至?xí)繒r,必須手動將無線網(wǎng)從客廳路由器切換至?xí)柯酚善?，以下哪種方案能解決此類問題〇/r/nA/r/n、/r/n將所有路由器的/r/nSSID/r/n和密碼改為一致/r/nB/r/n、/r/n采用/r/nAC+/r/n瘦/r/nAP/r/n組網(wǎng)方式對用戶家庭無線網(wǎng)絡(luò)進行改造/r/nC/r/n、/r/n采用/r/ncable/r/n貓組網(wǎng)技術(shù)對用戶家庭無線網(wǎng)絡(luò)進行改造/r/nD/r/n、/r/n以上三種解決方案均可/r/n答案：/r/nB/r/n.P0N/r/n在網(wǎng)絡(luò)中的位置屬于〇。/r/nA/r/n、/r/n核心網(wǎng)/r/nB/r/n、/r/n用戶駐地網(wǎng)/r/nC/r/n、/r/n接入網(wǎng)/r/nD/r/n、/r/n傳輸網(wǎng)/r/n答案：/r/nC/r/n./r/n機頂盒恢復(fù)出廠設(shè)置那些參數(shù)不會被修改：〇/r/nA/r/n、/r/n業(yè)務(wù)賬號/r/nB/r/n、/r/n撥號賬號/r/nGEPG/r/n地址/r/nD/r/n、/r/n接入方式/r/n答案:/r/nC/r/n.GPON/r/n的最大標稱線路速率（下行/上行）為/r/n〇。/r/nA/r/n、/r/n下行/r/n1244.16Mbit/s,/r/n上行/r/n155.52Mbit/s/r/nB/r/n、/r/n下行/r/n1244.16Mbit/s,/r/n上行/r/n622.08Mb/r/ni/r/nt/s/r/nG/r/n下行/r/n2488.32Mbit/s,/r/n上行/r/n1244./r/n1/r/n6Mb/r/ni/r/nt/s/r/nD/r/n、/r/n下行/r/n2488.32/r/nM3t/s,/r/n上行/r/n2488.32Mb/r/ni/r/nt/s/r/n答案:/r/nD/r/n.在綜合布線系統(tǒng)施工中,通常情況下語音信息點采/r/n用/r/nCAT3,/r/n數(shù)據(jù)信/r/n息/r/n點采/r/n用/r/n（）/r/n。/r/nCAT1/r/nCAT3/r/nGCAT5E/r/nD/r/n、/r/nCAT7/r/n答案：/r/nC/r/n.下列障礙物中,/r/n（）/r/n對無線信號的損耗最大。/r/nA/r/n、/r/n石膏天花板/r/nB/r/n、/r/n玻璃/r/nG120mm/r/n磚墻/r/nD/r/nゝ/r/n200mm/r/n混凝土墻/r/n答案：/r/nD/r/n.2019/r/n年中國移動安防產(chǎn)品重點推出哪個品牌?/r/nA/r/n、/r/n移動看家/r/nB/r/n、/r/n和目/r/nC/r/n、/r/n和家固話/r/nD/r/n、/r/n和家親/r/n答案：/r/nA/r/n./r/n網(wǎng)絡(luò)中使用/r/nVLAN/r/n進行二層隔離,/r/nVLAN/r/n標準為/r/n〇〇/r/nIEEE802./r/n1/r/nIEEE802./r/n11/r/nIEEE802./r/n1Q/r/nIEEE802.3/r/n答案:/r/nC/r/n.上網(wǎng)打不/r/n開/r/n網(wǎng)頁的原因可能是〇/r/nA/r/n、/r/n瀏覽器設(shè)置問題/r/nB/r/n、/r/n使用路由器設(shè)置出錯/r/nC/r/n、/r/n客戶/r/nIP/r/n或/r/nDNS/r/n問題/r/nD/r/n、/r/n以上都是/r/n答案:/r/nD/r/n.設(shè)備在環(huán)境溫度為/r/n25℃/r/n時/r/n運行時,整機外殼任意點溫度應(yīng)不高于〇℃/r/nA/r/n、/r/n40/r/nB/r/n、/r/n45/r/nC/r/n、/r/n50/r/nD/r/n、/r/n55/r/n答案：/r/nB/r/n./r/nWLAN/r/n中使用的/r/nAP/r/n分為大功率/r/nAP/r/n和小功率/r/nAP,/r/n其中大功率/r/nAP/r/n達到。/r/n100mv/r/n200mv/r/n500mv/r/n1OOOmv/r/n答案：/r/nc/r/n182/r/n,下列關(guān)于智能門鎖說法正確的是/r/n（）？/r/nA/r/n、/r/n任何門均可安裝智能門鎖/r/nB/r/n、/r/n智能門鎖均具備防貓眼開鎖功能/r/nC/r/n、/r/n智能門鎖功耗較高,因此需外接電源進行供電/r/nD/r/n、/r/n智能門鎖安裝前需核實門的開門方向和鎖體的類型/r/n答案：/r/nD/r/n.千兆以太網(wǎng)口的英文縮寫是〇/r/nA/r/n、/r/nPE/r/nB/r/n、/r/nGE/r/nC/r/n、/r/nFE/r/nD/r/n、/r/nSE/r/n答案:/r/nB/r/n./r/n用戶付費手機號找不到云存或者云存過期,需要聯(lián)系誰?/r/nA/r/n、/r/n設(shè)備廠商,如?？怠⒋笕A/r/nB'/r/n聯(lián)系裝維/r/nC'/r/n聯(lián)系營業(yè)廳/r/nD'/r/n不管它/r/n答案:/r/nC/r/n./r/nONU/r/n的注冊過程說法錯誤的是〇/r/nAxONU/r/n的執(zhí)行動作:在上電啟動或復(fù)位時,/r/nONU/r/n進入/r/nDiscovery/r/n狀態(tài)等待來自〇/r/nLT/r/n的/r/n"DiscoveryGate”/r/n消息/r/nB'ONU/r/n的執(zhí)行動作:如果所收到的消息類型為/r/nDiscovery,/r/n就對此消息做出應(yīng)答/r/nC/r/n、/r/nOLT/r/n的執(zhí)行動作:/r/nOLT/r/n以廣播方式周期性的發(fā)送/r/nDiscovery/r/n檢測幀/r/nD/r/n、/r/n響