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The Ayushman Bharat Digital Mission creates unique health IDs for citizens.
- True
- False
Answer: True
Ayushman Bharat Digital Mission (ABDM) assigns 14-digit ABHA (Ayushman Bharat Health Account) numbers as unique health IDs. Enables consent-based sharing of health records across providers, teleconsultations, and personalized care. Part of India's digital health infrastructure transformation.
Which frequency band offers better building penetration for mobile signals?
- 26 GHz
- 3.5 GHz
- 700 MHz
- 1800 MHz
Answer: 700 MHz
Lower frequency bands (like 700 MHz) have longer wavelengths that penetrate buildings and obstacles better, providing wider coverage with fewer towers. Higher bands (3.5 GHz, 26 GHz) offer higher capacity but shorter range, requiring denser infrastructure. 5G deployments use band combinations for coverage+capacity.
A security model that defines how subjects access objects in a system is called ________ Model.
Answer: Access Control
Access Control Models define policies for subject-object interactions: DAC (owner-controlled), MAC (system-enforced labels), RBAC (role-based permissions), ABAC (attribute-based rules). Critical for enforcing least privilege and compliance in enterprise systems. Implemented via IAM solutions and directory services.
Which device operates at Layer 2 of the OSI model and uses MAC addresses?
- Router
- Switch
- Hub
- Gateway
Answer: Switch
Switch operates at Data Link Layer (Layer 2), using MAC addresses to forward frames to specific ports within a LAN. More efficient than hubs (broadcast to all ports). Managed switches support VLANs, QoS, and security features. Routers operate at Layer 3 using IP addresses.
UPI transactions can be reversed by the sender after successful completion.
- True
- False
Answer: False
UPI transactions are instant and irrevocable once completed. Senders must verify recipient details before confirming. For erroneous transactions, users must contact recipient for refund or raise dispute with bank/NPCI. Always double-check VPA/amount before sending money via UPI.
Which port is commonly used for connecting a keyboard to a computer?
- HDMI
- USB
- VGA
- Ethernet
Answer: USB
USB (Universal Serial Bus) is the standard port for keyboards, mice, and most peripherals. Replaced legacy PS/2 ports. USB-C offers reversible connector and higher power/data transfer. Wireless keyboards use Bluetooth or RF dongles, but USB remains universal for wired connections.
The technology that uses drones for delivering packages in remote areas is part of ________ Logistics.
Answer: Drone
Drone Logistics uses unmanned aerial vehicles for last-mile delivery, especially in remote/hilly areas with poor road connectivity. India's Drone Rules 2021 facilitate commercial drone operations. Applications: medical supplies, e-commerce, agriculture spraying. Requires airspace management and safety protocols.
Which SQL aggregate function returns the number of rows matching a condition?
- SUM
- AVG
- COUNT
- MAX
Answer: COUNT
COUNT() returns the number of rows that match a specified condition. COUNT(*) counts all rows; COUNT(column) counts non-NULL values. Used with GROUP BY for segmented counts. Other aggregates: SUM (total), AVG (mean), MIN/MAX (extremes). Essential for reporting and analytics queries.
PSLV has successfully launched satellites for other countries as part of commercial missions.
- True
- False
Answer: True
PSLV has launched over 300 foreign satellites for 34+ countries, establishing ISRO as a reliable, cost-effective launch service provider. Notable missions: PSLV-C37 (104 satellites in one launch), PSLV-C44 (Microsat-R). Commercial launches generate revenue and foster international cooperation.
Which authentication method uses physical characteristics like fingerprint or face?
- Knowledge-based
- Possession-based
- Inherence-based
- Location-based
Answer: Inherence-based
Inherence-based authentication uses biometric traits inherent to the user: fingerprint, iris, face, voice, or behavioral patterns. Part of multi-factor authentication (MFA). Advantages: hard to lose/share; challenges: privacy concerns, spoofing risks, and accessibility for disabled users.
The platform that enables farmers to sell produce directly to buyers at transparent prices is called ________.
Answer: e-NAM
e-NAM (Electronic National Agriculture Market) is an online trading platform connecting APMC mandis across India. Enables transparent price discovery, wider market access, and reduced intermediation for farmers. Integrated with quality assaying, payment settlement, and logistics services for efficient agricultural trade.
Which technology enables voice calls over internet protocol networks?
- SMS
- MMS
- VoIP
- GPRS
Answer: VoIP
VoIP (Voice over Internet Protocol) transmits voice calls as data packets over IP networks (internet, LAN). Examples: WhatsApp calls, Zoom, Skype, corporate PBX. Advantages: lower cost, integration with apps, advanced features. Quality depends on bandwidth, latency, and jitter management.
The BIOS settings are stored in CMOS memory powered by a small battery on the motherboard.
- True
- False
Answer: True
CMOS (Complementary Metal-Oxide-Semiconductor) memory stores BIOS/UEFI settings (boot order, system time, hardware config) and is powered by a coin-cell battery (CR2032). If battery dies, settings reset to defaults and system clock loses time. Replacing battery restores persistent storage.
Which AI technique is used for detecting anomalies in network traffic for cybersecurity?
- Supervised Learning
- Unsupervised Learning
- Reinforcement Learning
- All of these
Answer: All of these
Anomaly detection uses: Supervised Learning (trained on labeled attacks), Unsupervised Learning (clustering normal vs abnormal patterns), and Reinforcement Learning (adaptive response to threats). Combined approaches improve detection of zero-day attacks and reduce false positives in SIEM systems.
The protocol that automatically assigns IP addresses to devices on a network is called ________.
Answer: DHCP
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses, subnet masks, gateway, and DNS settings to devices joining a network. Eliminates manual configuration errors and simplifies network management. Uses DORA process: Discover, Offer, Request, Acknowledge.
Which feature allows UPI users to link multiple bank accounts to a single VPA?
- UPI Lite
- Multi-Bank VPA
- Account Aggregator
- Not supported
Answer: Multi-Bank VPA
UPI allows linking multiple bank accounts to one Virtual Payment Address (VPA). Users can select default account or choose at transaction time. Simplifies management, enables fund routing flexibility, and maintains single identity across banks. Managed securely via NPCI's central switch.
Using public Wi-Fi without a VPN exposes your data to potential eavesdropping.
- True
- False
Answer: True
Public Wi-Fi networks often lack encryption, allowing attackers on same network to intercept unencrypted traffic (HTTP, emails, credentials). VPN creates encrypted tunnel protecting data in transit. Best practice: avoid sensitive transactions on public Wi-Fi, use HTTPS, enable firewall, and connect via VPN.
Which key is used to toggle between uppercase and lowercase typing?
- Shift
- Caps Lock
- Ctrl
- Alt
Answer: Caps Lock
Caps Lock toggles alphabetic keys to produce uppercase letters without holding Shift. Shift produces uppercase only while pressed. Caps Lock indicator (LED) shows active state. Useful for typing headings or acronyms; accidental activation is a common user frustration.
The technology that uses light pulses to transmit data through thin glass fibers is called ________ Communication.
Answer: Optical Fiber
Optical Fiber Communication transmits data as light pulses through glass/plastic fibers, offering high bandwidth, low attenuation, and immunity to electromagnetic interference. Backbone of modern internet, undersea cables, and BharatNet. Enables high-speed broadband, 5G backhaul, and data center interconnects.
Aadhaar-based e-KYC eliminates the need for physical document verification in many services.
- True
- False
Answer: True
e-KYC (Electronic Know Your Customer) uses Aadhaar authentication to verify identity digitally, reducing paperwork and processing time. Enabled for banking, telecom, pensions, and subsidies. Consent-based and secure, with audit trails. Supreme Court guidelines ensure privacy and purpose limitation.