At Nexa System, we believe in building a highly skilled and dependable technical team capable of delivering outstanding CCTV and electronic security installations across Kerala. To support candidates preparing for a Security System Technician role, we have published a comprehensive set of interview questions that reflect the technical knowledge, field experience, and problem-solving skills we expect from our technicians.
1. What is are the difference between Analog and IP camera?
2. What is NVR?
3. What is POE?
4. What are the different brands available in camera? Suggest any 4 brands
5. Why Nexa System deal with only Hikvision?
6. What is AcuSense?
7. What are the 4 Hikvision product category?
8. Hikvision is a Chinese brand then why we deal with it?
9. Difference between DVR and NVR?
10. Which cable is used for Analog camera setup?
11. Which cable is used for IP camera?
12. What is Indoor cable?
13. What is Outdoor cable?
14. Commonly used Cable brands?
15. What are the parts required for a basic IP camera network setup?
16. What are the parts required for a basic Analog camera setup?
17. What is DORI
18. What is Smart Hybrid camera? How it is working?
19. Hikvision’s Mobile App?
20. Hikvision’s PC App?
21. Any App possible to use in Smart TV?
22. Hikvision’s wireless camera brand?
23. Is Hikvision Mobile App works in iPhone?
24. What is Hikconnect Partner Pro mobile App use?
25. “IR camera”, what is here IR represents?
26. “IR distance 40mtr” , what this statement in an IP camera means?
27. One customer need to Identify people coming at 12Mtr distance of his gate. Which lens
you will suggest for him?
28. What is PT and PTZ camera?
29. What is 1line, 2line and 3line camera?
30. Can you add an EZVIZ wifi camera to a Hikvision’s NVR?
31. How many IP camera possible to add in an 8 channel NVR?
32. Which is more wide-angle camera? Camera with lens 2.8mm , 4mm, 6mm
33. How you can identify a camera has audio feature by using its model number?
34. Can you identify a camera with memory card feature with its model number? How?
35. DS-2CD2046G2-IS , is this camera a full time color camera?
36. DS-2CD2046G2-IS is this a dome camera?
37. DS-2CD3041G2E-I , is this camera is economic ?
38. DS-2CD3041G2-LIUF , what is the resolution of the camera?
39. What are the common camera resolution available in IP camera?
40. 8MP is 4K , is that statement is correct?
41. How many monitor possible to connect with NVR?
42. Tell me the Length of commonly available HDMI cable?
43. One customer need to connect a TV 30Mtr distance from NVR, is that possible? How to do
it?
44. One customer need to connect a camera 200Mtr distance and required to record on the
same NVR along with other camera. How its possible? Tell me a solution.
45. Any NVR coming with direct POE port?
46. What is the use of modem?
47. Can I setup NVR and IP camera without Internet? Then what is the use of Internet?
48. Can I record video in every IP camera?
49. Some IP camera has inbuilt memory card slot, when I put an SD card inside, is that camera
possible to record in NVR?
50. What are the types of storage options available in IP camera setup?
51. What is NAS server?
52. I want to fix my NVR in Kottayam and IP camera in Ernakulam. Is that possible? Then how?
53. One robbery happened in my office; I want to back the video. How its possible? What are
the options?
54. I have seen an incident in my Mobile App. I have taken its backup. But the video quality is
very less. What is the reason?
55. How will be the audio quality of the IP camera? Generally, how many meter it will
support?
56. What is 2 way audio camera?
57. What is the default password of Hikvision NVR and IP camera?
58. What is SADP tool?
59. I forgot my NVR TV password. What will do? Can I reset?
60. I forgot my Mobile App login password. Can I reset it?
61. Can connect TV with my NVR?
62. I can listen to my camera audio through mobile app. Is that audio is recording in my NVR?
63. How many days I will get backup for 4 IP camera with 4MP resolution?
64. How many days I will get backup for 8 IP camera with 4MP resolution?
65. How many days I will get backup for 4 IP camera with 2MP resolution?
66. How many days I will get backup for 8 IP camera with 2MP resolution?
67. I want to fix 2 IP camera in my home, I don’t want NVR. Is that possible? What are the
drawbacks?
68. I want to fix 2 or 4 Wireless camera in my home, I don’t want NVR. Is that possible? What
are the drawbacks?
69. Someone stook my NVR, is there any possible to get the video?
70. I want to setup email alert setup in my Gmail. Is that possible?
71. Can I use SSD instead of HDD? Why
72. What are the most common Hard disk brands?
73. Usually, Hard disk has 2 year warranty by manufacture. Is that true?
74. Surveillance Hard disk Vs computer Hard disk. Any difference?
75. I have my old computer hard disk with me. Can I use that for my IP camera system with 8
cameras?
76. How will you identify a Dome camera with Turret camera?
77. What is Indoor camera?
78. Why we suggest Rack for IP camera setup?
79. How many mobile users possible in an IP camera system?
80. I have installed IP camera. In my mobile app camera is working fine. But I have installed PC
software. But its very slow. Why?
81. Beep sound from my NVR. What are the possible problems?
82. I cannot take playback. But live view is OK. What are the possible problem?
83. I cannot take playback. But live view is OK. Hard disk shows normal. What are the possible
problem?
84. I have installed a camera. Its view is black and white at night. Why? But when I switch on
light the camera shows color image. What is the reason?
85. Camera shows offline in Mobile app. What is the possible cause?
86. I have installed IP camera in my home. I can see video in my mobile. But my in my wife’s
mobile the video is not loading. Why? Is there any problem with NVR or camera system?
What you will tell to the customer?
87. I don’t want NVR. I have an old computer in my home. I want to record to my 6 camera
with it. When a customer says, what will be your reply?
88. I have compared another quotation with yours. Found your price is too high. When a
customer says, what will be your reply?
89. Why your cabling cost is too high? Around 85+ GST you are charging. Others charge only
55 GST. When a customer says, what will be your reply?
90. I have carefully checked your quotation. Above 10000+ is GST. Can I get my installation
finished without GST?
91. Why you charge for Site visit?
92. Camera price is too low in Online sites like Amazon and Flipkart. Your price is very high.
When a customer says this, what you will reply?
93. How many years we Nexa System has experience in this electronic security system field?
94. Location of our shop?
95. What is our official mail ID?
96. Who the Authorized Distributor of Hikvision in India?
97. I got received your quotation last week. I am at Dubai. When I enquired, I found the price
is less here for the camera. When a customer says, what will be your reply?
98. Are you dealing with any brand camera other than Hikvision now? When a customer says,
what will be your reply?
99. Are you dealing with any Analog camera? When a customer says, what will be your reply?
100. I have a camera and NVR with me. Will you do install for me? My house at Ernakulam
city. When a customer says, what will be your reply?
101. I have NVR and other system with me. Imported from Gulf. Will you do installation? My
house at Kollam. What will be your reply when customer says this?
102. I purchased an IP camera from your shop. There is a password inside the camera. The camera
was not opened. What I will do. Make Hikvision.
103. You people made an installation in my home last 1 year back. I have a complaint. You are a
technician or Project coordinator, what will be your reply?
104. How many days we provide Service Warranty / AMC after the installation?
105. Is there any chance to extend my AMC period after 1 year of FREE AMC?
106. The camera has 2-year warranty. Then why you charge for me within this warranty period?
When a customer says this, what you will reply?
107. What is comprehensive AMC & Non-Comprehensive AMC?
108. Do we have AMC service after the work?
109. My camera is blur only at night. But ok at day time. What will be the possible cause?
110. I have only 20 days recording in my NVR and I want to take video footage older than this. Is
that possible?
111. My NVR recording only 30 days. After 30 days may I want to delete the video for new
recording to be happened?
112. I have already made CAT6 cabling in my home, IP camera found too costly. can I install Analog
camera in that cabling? If you are a project coordinator what will be your reply?
113. I want to fix Face Detection camera in my home. I want to reduce false alarm. Is that
possible? If a customer says to you, what will be your reply?
114. When an intrusion happened, I want to get a siren alert inside my house. When a customer
says this, what will be your reply?
115. When an intrusion happen, shall we create a loud alert in mobile? Tell me the limitation
116. How many Face Picture comparison possible with K2 series NVR?
117. How many Face Picture comparison possible with K1 series NVR?
118. DS-7616NXI-K1 , how many channel motion detection supported?
119. DS-7608NXI-K1 , how many channel motion detection supported?
120. DS-7616NXI-K2 , how many channel support perimeter protection?
121. DS-7608NXI-K2 , how many channel support perimeter protection?
122. How many picture library possible to support in K1 NVR and what about K2?
123. How many hard disk supported in K2 Series NVR?
124. What is the maximum storage possible at K2 series 8 channel and 16 channel NVR?
125. What is H.265?
126. What is FPS?
127. AcuSense is AI feature? Is there any other brand dealing with AI camera?
128. What is Fals Alarm?
129. What is IP67 weatherproof means?
130. I have internet in my house. But am not getting mobile view. What will be the possible issue?
131. I have changed my Wifi password. My Wifi camera is not working now. Why?How to solve
this?
132. Can I connect an external mic with my IP camera?
133. How may EZVIZ camera possible to connect with EZVIZ mobile App?
134. Can I put a 1TB SD card inside C6 EZVIZ camera?
135. My EZVIZ wifi camera is connected with NVR. Audio is OK. But my 2 way audio feature of the
Wifi camera is not working through Hikconnect mobile App. What will be the problem?
136. DVR support IP camera. Then Why need to purchase NVR?
137. DVR support both IP camera and Analog camera. Then DVR is very good than NVR? If a
customer says, what will be your reply?
138. My Smart Hybrid camera is flashing light at night. No human other than 2 cars in my porch.
Why?
139. What is DVP?
140. What is the advantage of Hikvision VDP KIS 602?
141. Is there any maintenance required for IP camera?
142. Why need to purchase POE with more warranty?
143. I want to fix only 1 IP camera. I want to purchase POE? Any option to fix this camera?
144. I have made cabling in my house. I need to fix 1 more camera. Without additional cabling Is
there any chance to split existing cable?
145. What is POE injector?
146. What is camera housing?
147. What is camera pole?
148. What is pole mount bracket?
149. What is hose clamp?
150. I have 8 channel NVR, I want to install 9 camera. Is that possible? If a customer says this,
what you will say?
151. AcuSense camera can detect human and vehicle. Then why that camera can’t detect number
plate?
152. What is ANPR camera?
153. What is VF camera?
154. When you will suggest VF camera for a customer?
155. Why we suggest site visit prior to camera installation?
156. Where you will suggest a solar PT camera?
157. We have many calls to fix 5 or more WiFi camera in a single house. Why we don’t suggest it?
158. Shall we record a Trueview camera in NVR? Any drawback for this?
159. Shall we record an IMOU WiFi camera in Hikvision NVR? Any drawback for this?
160. What are the advantages of a WiFi camera?
161. What is 2way audio camera? Is camera available as in Wired category?
162. “SSD is better than surveillance HDD”. Are you agree?
163. Voltage fluctuation is common in one site. Which device you will suggest at this site?
164. What is POE splitter? What is the use?
165. What is POE injector? What is the use?
166. What are the uses of pole mount bracket and wall mount bracket?
167. GI Vs GP pipes
168. Can I install iVMS 4200 in Mac?
169. Can I take video playback in iVMS 4200?
170. Is there any limitation for camera number in Hik-connect mobile app?
171. Which Mobile App is use for EZVIZ camera?
172. Can I add EZVIZ camera to Hik-connect mobile app? Any limitation?
173. Wired or WiFi camera? Which is more reliable?
174. What is the use of SD card/memory card in Wired camera?
175. Can I install iVMS 4200 in Laptop?
176. Can I mix WiFi camera with Wired camera in an NVR?
177. What is the use of Hik-connect Partner Pro Account?
178. POE switch Vs network switch difference?
179. Can I power EZVIZ camera in POE switch?
180. Common NVR adapter voltage 12V. Is this true?
181. What is Ultra Series/Project series product?
182. Why we can’t give price list for Project Series camera?
183. Can I connect Keyboard and mouse to NVR?
184. Can I connect wireless mouse in NVR?
185. Can I connect 3 monitors in NVR? If yes, how?
186. What is Cat6 to OFC media converter? Where it is used?
187. What is 4 core /6 core /8 core OFC cable means?
188. What is the best direction of solar panel
189. Is Ultra Series camera 100% human detection camera?
190. What is line crossing?
191. What is intrusion detection?
192. What is Unattended baggage detection?
193. Face detection Vs face picture comparison
194. How many cameras will support face detection in a 16 channel NVR K2 series?
195. Can I configure AcuSense feature in a non AcuSense camera with K2 series NVR?
196. What is VDP? Which model we are commonly dealing with?
197. Can I get call from Hikvision VDP in my mobile?
198. Is Hikvision VDP WiFi supported?
199. How we are different from other installers?
200. My WiFi modem doesn’t provide coverage. Is there any solution for extending coverage?
201. What is WiFi signal booster/ WiFi extender/ WiFi repeater?
202. What is Wall Plate Access Point?
203. What is Ceiling Mount Access Point?
204. What is modem?
205. What is FTP? What is the use in camera?
206. Is there any cloud service available in EZVIZ camera. What is the average tariff?
207. Is there any cloud service available in Hikvision NVR?
208. What is Cloud 2.0 in Hikvision NVR?
209. I have Hikvision IP camera in Kottayam. Can I record in Ernakulam? If yes, how?
210. Can I install iVMS on Linux OS?
211. What is SADP tool?
212. STP Vs UTP cable
213. Is there any chance of Hacking Hikvision camera?
214. “When I connect Hik-connect mobile App, they can watch my camera?” When a customer
says this what you will say to him?
215. “How long this camera will last?” When a customer says, what you will say to her
216. How we differ from other installers in case of service handling? What are our merits?
217. What is DHCP and Static IP address?
218. What is WAN?
219. What is WLAN?
220. What is LAN?
221. What is the use of coaxial cable?
222. What is Hybrid DVR/ XVR?
223. What is the average power consumption of a camera system with 4 cameras?
224. What is the advantage of IP camera over Analog camera?
225. Can I set mobile view in Analog camera?
226. Any payment/charge for Hik-connect mobile App?
227. Any payment/charge for iVMS 4200 PC software?
228. Why it is mandatory to connect every site in Hik-connect partner Pro App?
229. When a customer says, “Can you watch my camera in Hik-connect Partner Pro App?”. What
you will say?
230. If a customer is not ready to give mobile login password and information, as a technician or
service coordinator, what you will say?
231. What is RAID? Can I do configure that in Hikvision 2 SATA NVR?
232. Is there any possibility to retrieve recorded video if hard disk fail?
233. What is NAS? What is the use in IP camera setup?
234. Can I record my IP camera video to a NAS server located far distance/ trough internet?
235. What is Internet?
236. How do you understand WiFi and Internet?
237. Which protocol is used to connect another brand camera to Hikvision NVR?
238. When I connect Dahua camera to Hikvision NVR which protocol is used?
239. What is ONVIF?
240. Warranty period of a Hikvision POE switch?
241. Can I connect Hikvision IP camera to Dahua/Cp Plus POE?
242. What I need to look for when selecting a POE switch?
243. What is Wattage?
244. Why we suggest network rack?
245. Can I view my IP camera in mobile without internet?
246. Can I configure and use WiFi camera without Internet?
247. “I think my mobile view clarity is less”. If a customer says what you will say?
248. Can I connect my NVR to a 75 inch LED TV?
249. Can I connect NVR to a projector?
250. Latest Hikvision NVR firmware version?
251. “Which camera is best for my home?” If a customer says this, what you will say to him?
If you are passionate about Smart Surveillance and IT Solutions, and delivering high-quality service to customers, Nexa System welcomes you to explore a career with us. We have vacancy for trainee & experienced candidates. We are continuously expanding our operations, and talented professionals who meet our standards are encouraged to join our team.
മലയാളത്തിൽ IP Camera യെപ്പറ്റിയും (Basic to advanced level setup) , Enterprise Networking (Wired & Wireless) ഉം പഠിക്കാൻ താല്പര്യം ഉണ്ടോ? YouTube വീഡിയോ ക്ലാസ് ഉണ്ട്. നിങ്ങളുടെ സമയത്തു യൂട്യൂബിൽ കൂടി പഠിക്കാം. ഒരുമാസത്തേക്ക് വെറും 159 രൂപ മാത്രം ഫീസ് ഉള്ളു. നിങ്ങൾ ഈ മേഖലയിൽ ജോലി ചെയ്യുകയാണെങ്കിലും കൂടുതൽ കാര്യങ്ങൾ അറിയാനും പഠിക്കാനും സാധിക്കും. ഇപ്പോൾ ജോയിൻ ചെയ്യുക.
Candidates who are interested in job opportunities at Nexa System can apply by contacting our office with their updated resume and relevant experience details.
email: info@nexasystem, Whatsapp/Call: 8111892745