Email & Social Networking: 100 Questions & Answers

Email Communications, Video Conferencing Tools (Zoom, Google Meet, MS Teams), Social Media Platforms (Facebook, X, Instagram, LinkedIn, YouTube), aur Cyber Safety & Netiquette

Part 1: Email Basics, Operations & Protocols (25 Questions)

1. Question: Email ka full form kya hai aur iska primary use kya hota hai? Answer: Electronic Mail; internet ke zariye digital messages, documents, aur files bhejane aur prapt karne ke liye iska use hota hai.

2. Question: Email ka aavishkar kisne kiya tha aur pehla email kab bheja gaya tha? Answer: Ray Tomlinson ne 1971 mein ARPANET par pehla email bheja tha (unhone hi @ symbol ka chayan kiya tha).

3. Question: Standard Email Address ka format kya hota hai aur iske 2 main parts kaun se hain? Answer: Format: username@domain.com; iske 2 parts hain: Username (user ki identity) aur Domain Name (email provider server).

4. Question: Email mein CC ka full form kya hai aur iska use kab kiya jata hai? Answer: Carbon Copy; jab aap kisi doosre person ko email ki copy info/reference ke liye bhejna chahte hain (sabko sabhi recipient addresses dikhte hain).

5. Question: Email mein BCC ka full form kya hai aur CC se yeh kaise alag hai? Answer: Blind Carbon Copy; BCC mein jode gaye recipient ka email address baaki kisi bhi recipient (To ya CC) ko dikhai nahi deta.

6. Question: Email "Compose" karne ka kya matlab hota hai? Answer: Naya email likhna/create karna.

7. Question: Email Drafts folder mein konse emails save hote hain? Answer: Woh emails jo aapne compose/write kar liye hain par abhi tak send nahi kiye hain.

8. Question: Email Attachment kya hoti hai aur standard file size limit kitni hoti hai? Answer: Email ke saath attach ki gayi koi bhi file (PDF, Image, Document); Gmail mein standard attachment limit $25\text{ MB}$ hoti hai.

9. Question: Email mein "Reply" aur "Reply All" mein kya mukhya antar hai? Answer: Reply sirf original sender ko message bhejta hai, jabki Reply All original sender ke saath-saath sabhi CC'd recipients ko message bhejta hai.

10. Question: Email Forwarding (Fwd) ka kya arth hota hai? Answer: Apne Inbox mein aaye kisi email ko kisi teesre person ko as-it-is aage bhejna.

11. Question: Inbox, Sent, Trash/Bin, aur Spam folders ka kya kaam hota hai? Answer: Inbox = Received emails, Sent = Bheje gaye emails, Trash = Deleted emails, Spam = Unwanted/junk emails.

12. Question: Spam Emails (Junk Emails) kya hote hain? Answer: Unsolicited (bina maange) mass level par bheje gaye commercial, promotional, ya malicious emails.

13. Question: Phishing Email kya hoti hai aur isse kaise bachein? Answer: Dhokhadhadi se banayi gayi fake emails jo legitimate banks ya companies ki tarah dikhti hain taaki aapke passwords/banking details chura sakein. Anjaan links par click na karke isse bach sakte hain.

14. Question: Email Signature kya hota hai? Answer: Email ke bottom/end par automatically add hone wala personalized block (jisme Sender Name, Designation, Contact Info hota hai).

15. Question: Out of Office / Auto-Responder feature kya hai? Answer: Jab aap chutti par ho ya access se bahar ho, tab aane wale har email ka automatic pre-written reply bhejna.

16. Question: SMTP protocol ka full form kya hai aur email transmission mein iska role kya hai? Answer: Simple Mail Transfer Protocol (Port $25$/$587$); client se server par email Send (भेजने) karne ke liye use hota hai.

17. Question: POP3 aur IMAP protocols mein kya mukhya antar hai? Answer: POP3 emails ko local device par download karta hai aur server se delete kar sakta hai; IMAP emails ko server par hi sync rakhta hai jisse multiple devices se read kiya ja sake.

18. Question: Email Subject line likhna kyun zaroori hai? Answer: Yeh email ke main topic/purpose ki brief summary deta hai jisse recipient ko mail ki urgency samajh aaye.

19. Question: Promotional emails ke bottom mein "Unsubscribe" link kyun di jati hai? Answer: User ko us specific newsletter ya promotional mailing list se apna email hatane ki suvidha dene ke liye.

20. Question: Email Bouncing kya hota hai (Hard Bounce vs Soft Bounce)? Answer: Jab email recipient tak nahi pahunchta aur return aa jata hai. Hard Bounce = Permanent error (invalid email ID); Soft Bounce = Temporary error (full inbox / server down).

21. Question: Webmail aur Email Client Software (jaise MS Outlook) mein kya antar hai? Answer: Webmail browser ke zariye direct khulta hai (e.g., Gmail on browser); Email Client desktop app hai jo protocols dwara mails sync karta hai (e.g., Outlook, Thunderbird).

22. Question: Email Filters / Rules setup karne ka kya fayda hota hai? Answer: Incoming emails ko sender, subject ya keywords ke aadhar par automatically specific folders mein categorize/move karna.

23. Question: Email Archiving kya hoti hai? Answer: Inbox ko saaf rakhne ke liye purane important emails ko permanently delete kiye bina alag safe Archive area mein store karna.

24. Question: Email Attachment Virus se bachne ke liye kya precaution leni chahiye? Answer: Kisi bhi anjaan sender se aaye .exe, .scr, ya zipped attachments ko Bina Scan kiye open na karein.

25. Question: Professional Email Etiquette ke 2 sabse mahatvapurna niyam kya hain? Answer: Clear Subject Line ka upyog karna aur All Caps (jaise "PLEASE REPLY") mein na likhna (All Caps ko internet par 'chillana/shouting' mana jata hai).

Part 2: Video Conferencing & Online Meetings (25 Questions)

26. Question: Video Conferencing kya hai? Answer: Internet ke madhyam se do ya do se adhik sthanon ke beech real-time audio, video, aur data sharing dwara virtual meeting karna.

27. Question: Popular Video Conferencing applications ke examples dein? Answer: Zoom, Google Meet, Microsoft Teams, Cisco Webex, Skype.

28. Question: Online meeting mein Host aur Participant mein kya fark hota hai? Answer: Host meeting create/organize karta hai aur controls (mute, record, end meeting) manage karta hai; Participant meeting join karne wala member hota hai.

29. Question: Meeting Link / URL aur Meeting ID kya hoti hai? Answer: Meeting Link ek web address hota hai jis par click karke direct meeting join ki ja sakti hai; Meeting ID ek unique code hota hai jise app mein enter karke join karte hain.

30. Question: Video Conferencing mein Passcode / Password ka kya role hota hai? Answer: Unauthorized users ko meeting mein enter karne se rokna (Meeting Security).

31. Question: Screen Sharing feature ka kya upyog hai? Answer: Apni computer ya mobile screen par chal rahe presentation, document ya video ko baaki sabhi participants ko live dikhana.

32. Question: Meeting ke dauran Mute / Unmute Mic feature kyun zaroori hai? Answer: Background noise (as-pass ki aawaz) ko rokne ke liye bolte waqt hi Unmute karein, baaki samay Mic Mute rakhein.

33. Question: Video Camera On / Off toggle karne ka option kyun hota hai? Answer: Personal privacy, bandwidth saving, ya network slow hone par video off karke audio clarity maintain karne ke liye.

34. Question: Waiting Room / Lobby feature ka kya kaam hota hai? Answer: Participants ko meeting room mein enter hone se pehle host ki permission ke liye rok kar rakhna taaki koi unknown join na kare.

35. Question: Virtual Background / Blur Background feature kya hai? Answer: User ke piche ke real physical room/environment ko hide karke artificial image ya blurred background set karna.

36. Question: Breakout Rooms feature Zoom/Teams mein kis kaam aata hai? Answer: Badi main meeting ko chote-chote group discussion rooms mein baantna aur fir wapas main meeting mein lana.

37. Question: Meeting Recording feature ka kya upyog hai? Answer: Poori video meeting ko audio/video format mein record karke future reference ya absent members ke liye save karna.

38. Question: In-Meeting Chat box ka kya use hai? Answer: Meeting chalte waqt bina audio disturb kiye text messages, links ya questions bhejane ke liye.

39. Question: "Raise Hand" feature ka kya purpose hai? Answer: Meeting mein bina kisi ke bolne ke beech mein rukawat dale, apna prashn poochne ki permission maangna.

40. Question: Whiteboard feature video meeting apps mein kyun use hota hai? Answer: Real-time visual explanation, drawing, diagrams ya brainstorming points likhne ke liye digital canvas.

41. Question: Video Conferencing ke liye minimum hardware requirements kya hain? Answer: Camera (Webcam), Microphone, Speaker/Headphones, aur Display Screen.

42. Question: Internet bandwidth slow hone par Video Call par kya impact padta hai? Answer: Video freeze ho jati hai, audio lag/break hone lagta hai, ya call disconnect ho sakti hai.

43. Question: "End Meeting for All" aur "Leave Meeting" mein kya antar hai? Answer: End Meeting for All sabhi participants ke liye meeting khatam kar deta hai (Host dwara); Leave Meeting sirf us individual user ko bahar nikaalta hai.

44. Question: Google Meet mein instant meeting create karne ka web link kya hai? Answer: meet.google.com (ya Google Calendar se).

45. Question: Zoom software ki Basic (Free) plan par group meeting ki samay sima (time limit) kitni hoti hai? Answer: $40\text{ minutes}$ ($3$ ya usse adhik participants ke liye).

46. Question: AI-based Noise Cancellation feature meeting apps mein kya karta hai? Answer: Keyboard typing, fan ki aawaz, ya barking dog ki noise ko filter karke clear human voice transmission karta hai.

47. Question: Co-Host assign karne se host ko kya fayda hota hai? Answer: Co-host meeting permissions, participants admit/mute karna, aur screen share handle karne mein main host ki madad kar sakta hai.

48. Question: Attendance Report feature Teams/Zoom mein kya karta hai? Answer: Meeting ke baad list generate karta hai ki kis participant ne kis time join kiya aur kab leave kiya.

49. Question: Screen Share ke dauran "Annotation" tool ka kya use hai? Answer: Shared screen par text, arrow, ya highlight draw karke specific point par attention draw karna.

50. Question: Online Meeting Etiquette (Netiquette) ka sabse basic rule kya hai? Answer: Meeting mein time par join karna, jab na bol rahe ho tab Mic Mute rakhna, aur professional dress code follow karna.

Part 3: Social Media Platforms & Features (25 Questions)

51. Question: Social Media / Social Networking kya hota hai? Answer: Web-based platforms jo users ko profile banane, content (text, photo, video) share karne, aur aapas mein interact karne ki suvidha dete hain.

52. Question: World ke sabse popular Social Media Platforms kaun-kaun se hain? Answer: Facebook, Instagram, X (Twitter), LinkedIn, YouTube, WhatsApp, Pinterest.

53. Question: Facebook par Profile, Friend Request, aur News Feed kya hote hain? Answer: Profile = Individual user page, Friend Request = Connection proposal, News Feed = Friends aur Pages ki posts ka stream.

54. Question: Social Media par Hashtag (#) symbol ka kya upyog hai? Answer: Content ko specific topic/theme ke aadhar par categorize karna taaki log search karke saari related posts ek saath dekh sakein.

55. Question: Microblogging platform kisse kehte hain aur iska sabse bada example kaun sa hai? Answer: Chote/short text posts (micro-blogs) share karne wali site; example: X (Purana naam Twitter).

56. Question: X (Twitter) par Tweet/Post, Retweet/Repost, aur standard character limit kya hai? Answer: Message post karna = Post, Doosre ke post ko apne profile par share karna = Repost; Standard free limit = $280\text{ characters}$.

57. Question: Instagram kis prakar ka social networking platform hai? Answer: Visual photo aur short video sharing platform.

58. Question: Instagram Stories aur Reels mein kya antar hai? Answer: Stories $24\text{ hours}$ baad disappear ho jati hain, jabki Reels short multi-clip vertical videos hoti hain jo profile par permanently reh sakti hain.

59. Question: LinkedIn platform ka primary purpose kya hota hai? Answer: Professional networking, job search, business connections, aur career growth.

60. Question: LinkedIn par $1\text{st}$, $2\text{nd}$, aur $3\text{rd}$ degree connections ka kya matlab hai? Answer: $1\text{st}$ = Directly connected, $2\text{nd}$ = Connections of your $1\text{st}$ degree connections, $3\text{rd}$ = Connected to $2\text{nd}$ degree connections.

61. Question: YouTube kis category ka platform hai aur Channel "Subscribe" karne ka kya matlab hai? Answer: Video hosting/sharing search engine; Subscribe karne se us channel ki naye videos ka notification aur feed milta hai.

62. Question: Social Media Handle / Username (@username) kya hota hai? Answer: User ki unique identity/tag jiske dwara use platform par search ya tag kiya jata hai.

63. Question: Facebook Page aur Facebook Group mein kya mukhya antar hai? Answer: Page public representation (brands, celebrities, business) ke liye hota hai; Group common interest wale logon ke aapsi discussion community ke liye hota hai.

64. Question: Social Media Timeline / Feed par Algorithm ka kya kaam hota hai? Answer: User ke interest, likes, aur behavior ke hisab se relevant content decide karke screen par dikhana.

65. Question: Tagging / Mentioning (@mention) ka kya use hai? Answer: Kisi post ya comment mein doosre user ko tag karna jisse use notification chala jaye.

66. Question: Direct Message (DM) / Private Message (PM) kya hota hai? Answer: Public feed par na post karke do users ke beech private One-on-One chat karna.

67. Question: WhatsApp aur Telegram kis category ke software hain? Answer: Instant Messaging (IM) / Social Messaging applications.

68. Question: WhatsApp Group aur Broadcast List mein kya antar hai? Answer: Group mein sabhi members aapas mein interact karte hain; Broadcast List mein message individual private chat ke roop mein har recipient ko milta hai.

69. Question: Social Media Influencers kaun hote hain? Answer: Woh content creators jinke paas social platforms par badi fan following hoti hai aur jo audience ki buying decisions/opinions ko influence kar sakte hain.

70. Question: Social Media Analytics / Insights (Reach, Impressions, Engagement) kya darshate hain? Answer: Reach = Kitne unique users ne post dekha; Impressions = Post kitni baar screen par display hua; Engagement = Likes, Comments, Shares ki sankhya.

71. Question: Canva jaise graphic design tools ka social media mein kya use hota hai? Answer: Attractive posts, banners, thumbnails, aur Instagram reels design karne ke liye.

72. Question: Live Streaming (Facebook Live, Instagram Live) kya hai? Answer: Real-time bina recording ke live video broadcast karna jahan audience comments dwara interact kar sakti hai.

73. Question: Bio / Profile Description kya hota hai? Answer: Profile header par user ya business ke bare mein likha chota sa introduction/summary.

74. Question: Pins & Boards kis popular visual discovery platform ke main features hain? Answer: Pinterest.

75. Question: Digital Footprint kya hota hai? Answer: Internet aur social media use karte waqt chhoda gaya aapka online data trace (jaise posts, comments, browsing history).

Part 4: Cyber Safety, Privacy & Digital Etiquette (25 Questions)

76. Question: Strong Password banane ka niyam kya hota hai? Answer: At least $8-12$ characters long; jisme Uppercase letters, Lowercase letters, Numbers, aur Special Symbols (@, #, $) ka mix ho.

77. Question: Two-Factor Authentication (2FA) / Multi-Factor Authentication (MFA) kya hai? Answer: Security ki extra layer; password enter karne ke baad mobile par aaya OTP ya authenticator app code enter karna padta hai.

78. Question: Social Media par Privacy Settings ko custom setting par rakhna kyun zaroori hai? Answer: Apni personal details, photos, aur posts ko unknown strangers aur cyber criminals se secure rakhne ke liye.

79. Question: Public Profile aur Private Profile mein kya antar hai? Answer: Public = Koi bhi bina permission post dekh sakta hai; Private = Sirf approved followers/friends hi post dekh sakte hain.

80. Question: Cyberbullying kya hoti hai aur isse kaise bachein? Answer: Digital platforms par kisi ko harass karna, gande comments karna ya threat dena. Account block karke aur police/cyber cell mein report karke isse bachein.

81. Question: Online Identity Theft kya hai? Answer: Kisi ki personal details (naam, photos, credentials) chura kar uske naam se fake profile bana kar dhokhadhadi karna.

82. Question: Social Media par Fake News / Misinformation se kaise bachein? Answer: Bina verified sources (official news/fact-check sites) ke kisi bhi viral message ya post ko aage share na karein.

83. Question: Account Hacking se bachne ke liye 2 sabse zaroori steps kya hain? Answer: 2FA enable rakhna aur Har account ke liye alag-alag strong password use karna.

84. Question: Social Engineering Attack (jaise Honeytrap / Fake Profile Request) kya hota hai? Answer: Psychological manipulation ke zariye users ko baaton mein phasa kar unke confidential passwords ya bank details nikalna.

85. Question: Oversharing on Social Media (jaise real-time location, travel plans) ke kya khatre hain? Answer: Stalking, physical burglary (ghor mein chori), aur cyber targeting ka khatra badhta hai.

86. Question: Social media par Block aur Unfollow/Mute mein kya antar hai? Answer: Unfollow/Mute = Aapko uski posts nahi dikhengi par aap friends rahoge; Block = Interaction poori tarah khatam ho jata hai aur profile hide ho jati hai.

87. Question: "Report Post / Profile" option ka upyog kab kiya jana chahiye? Answer: Jab koi post hate speech, violence, nudity, spam, ya fake identity guidelines ko violate karti ho.

88. Question: Phishing Links ko pehchanne ke mukhya indicators kya hain? Answer: Misspelled domain names (e.g., g00gle.com), http:// instead of secure https://, suspicious urgent calls-to-action.

89. Question: Public Wi-Fi Networks (Railway Station/Cafes) par sensitive accounts login karne ke kya risks hain? Answer: Man-in-the-Middle (MITM) attack ke zariye hacker aapka data packet aur passwords intercept kar sakta hai (VPN ka use karein).

90. Question: Netiquette (Network Etiquette) kya darshata hai? Answer: Online communicate karte waqt polite, respectful, aur ethical behavior maintain rakhne ke rules.

91. Question: Copyright Infringement on Social Media / YouTube kya hota hai? Answer: Kisi doosre artist ka music, video ya artwork bina permission ke use karke upload karna.

92. Question: Creative Commons (CC) License ka kya matlab hai? Answer: Public copyright license jo creators ke work को specific conditions ke sath free reuse karne ki permission deta hai.

93. Question: Cyber Cell mein complaint darj karwane ke liye India ka National Cyber Crime Helpline Number aur Portal kya hai? Answer: Helpline Number: 1930; Portal: cybercrime.gov.in.

94. Question: Social media par Bulk Messaging / Spamming karne par account par kya impact padta hai? Answer: Platform dwara account temporary suspend ya permanently ban kiya ja sakta hai.

95. Question: System aur Emails ko Ransomware Attack se surakshit kaise rakhein? Answer: Regular data backup lein, operating system update rakhein, aur unknown email links par click na karein.

96. Question: OTP (One Time Password) kisi ke saath share kyun nahi karna chahiye? Answer: OTP aapke account ya bank transaction ko authorize karne ka final authentication key hota hai.

97. Question: Password Manager Application ka kya upyog hai? Answer: Multiple accounts ke complex passwords ko encrypted vault mein securely save aur auto-fill karna (e.g., Bitwarden, 1Password).

98. Question: Shared/Public computer (Cyber Cafe) par kaam karne ke baad "Log Out" aur Browsing Data clear karna kyun mandatory hai? Answer: Active login sessions aur saved cookies ko aane wale agle user se mis-use hone se bachane ke liye.

99. Question: Dark Web par credential leaks ka kya matlab hai? Answer: Hacked databases se churaye gaye user email aur passwords ka illegal markets par sell hona.

100. Question: Digital Wellbeing / Screen Time limit features apps mein kyun diye jate hain? Answer: Smartphone/Social media addiction ko kam karne aur healthy screen usage habit build karne ke liye.