UGC NET Questions (Paper – 1)

For 352₇, compute 3×7² + 5×7¹ + 2×7⁰ = 3×49 + 5×7 + 2 = 147 + 35 + 2 = 184. Therefore, the decimal equivalent is 184.

Option A:
Option A is correct because it follows standard positional conversion from base-7 to decimal and gives 184.

Option B:
Option B (179) would result from incorrect weighting or arithmetic and does not match 147 + 35 + 2.

Option C:
Option C (173) underestimates the correct sum and indicates an error in place-value contribution.

Option D:
Option D (191) overshoots the correct total and would require larger digit-weight products than present.

Synchronous communication occurs when participants interact in real time, sharing messages and responses nearly instantaneously. Video conferencing lectures involve both voice and sometimes chat interactions that happen at the same scheduled time. This allows immediate questioning and feedback between teacher and learners. Therefore, the communication mode described is synchronous.

Option A:
Option A, asynchronous, denotes communication where there is a time lag between messages, as seen in email or discussion forums, which is not the case in live sessions.

Option B:
Option B is correct because the defining feature of synchronous communication is simultaneous participation, and live video lectures clearly exhibit this property.

Option C:
Option C, one way, would imply that information flows from teacher to students without interaction, whereas video conferencing often supports two-way dialogue.

Option D:
Option D, offline, refers to activities not connected to the network, which contradicts the online nature of video conferencing.

Statements A, B and D correctly describe typical smart classroom tools, whereas C exaggerates their impact. Interactive whiteboards, numerical response tools and document cameras all extend the possibilities of classroom presentation and interaction. However, without sound pedagogy these tools do not automatically improve learning outcomes, so C is false. Therefore, the option that includes A, B and D but leaves out C is correct.

Option A:
Option A is incomplete because it selects only A and B and ignores D. While interactive whiteboards and response systems are important, document cameras are also standard smart classroom devices, and excluding them omits a correct statement.

Option B:
Option B is incomplete because it considers only B and D correct and omits A. Statement A about interactive whiteboards is a central feature of smart classrooms, so leaving it out produces an incomplete account of the technologies.

Option C:
Option C is incorrect because it includes A and D along with C. Although A and D are true, C claims that technology alone guarantees better learning, which is not supported by educational research. Including C makes this combination invalid.

Option D:
Option D is correct because it collects all three accurate statements and excludes the unrealistic claim in C. It emphasises that smart classroom technologies are powerful tools but still require planned teaching strategies.

Statements A, B, D and E correctly describe the roles of CPU, RAM, secondary storage and the ALU, while C and F misclassify devices. The CPU controls execution, RAM is volatile main memory, hard disks and SSDs are secondary storage, and the ALU is part of the CPU. A keyboard and mouse are input, not output devices, and a monitor is an output device, not used to capture audio. Therefore the set of true statements is A, B, D and E only.

Option A:
Option A is correct because it includes all and only the statements that accurately describe hardware components. It recognises the CPU and ALU roles, volatile RAM and secondary storage devices. By excluding C and F, it avoids incorrect classification of keyboard, mouse and monitor.

Option B:
Option B is incorrect because it adds C, which wrongly labels keyboard and mouse as output devices. Including a false statement makes the entire combination invalid even though A, B and D are true.

Option C:
Option C is incorrect because it includes F, which incorrectly describes a monitor as an input device for audio. This option mixes true statements with two false ones (C and F), so it cannot be the correct answer.

Option D:
Option D is incorrect because it omits A, leaving out the fundamental statement about the CPU’s control function. Although B, D and E are true, missing A means not all correct statements are represented in this combination.

Statements A, B, D and E correctly describe how ICT extends library services through online catalogues, remote access, transactional services and authentication integration. Users still need guidance in evaluating sources and using databases effectively, so C is false. Automation also does not eliminate the need for professional librarians who design services, manage collections and teach information skills, so F is also false. Therefore the true statements are A, B, D and E only.

Option A:
Option A is incomplete because it omits E, which notes the convenience of single-sign-on through integration with authentication services. Although A, B and D are true, they do not fully represent the technical enhancements enabled by ICT. This makes the combination only partially correct.

Option B:
Option B is incorrect because it leaves out A and includes only B, D and E. While those statements are valid, excluding the explicit mention of online catalogues underplays a central search service. A correct set must acknowledge OPACs as well.

Option C:
Option C is incorrect because it omits B and therefore fails to mention remote access to e-resources. The set A, D and E is still incomplete and overlooks a major benefit of digital libraries.

Option D:
Option D is correct because it groups the four statements that together characterise ICT-enabled library services: web catalogues, remote resources, online transactions and integration with authentication. It deliberately excludes the mistaken assumptions that information literacy is unnecessary and that librarians are redundant.

E-governance uses ICT to make government processes more transparent, efficient and citizen friendly. Delivering services like tax payment, certificate issuance and grievance submission through portals reduces the need for physical visits and can reduce delays and opportunities for corruption.

Option A:
This option correctly highlights that ICT is used to provide services and information to citizens any time and from many locations, matching initiatives such as online forms, digital signatures and integrated service portals.

Option B:
Stopping computer use reverses modernisation and conflicts with the very idea of e-governance, pushing administration back to slower, manual processes.

Option C:
Keeping all records only on paper restricts access and makes retrieval and analysis cumbersome, whereas e-governance emphasises digitisation and shared databases.

Option D:
Using ICT only for entertainment for officials ignores citizen services and accountability, which are central goals of e-governance.

Statements A, B, C and E correctly explain major cloud service models and a key benefit of scalability, whereas D and F are false. Institutions using cloud services do not have to own on-site data centres, and cloud tools are typically accessible from various devices including mobiles. Therefore, the combination of A, B, C and E only provides an accurate overview of cloud computing in education.

Option A:
Option A is correct because it captures the essence of IaaS, PaaS and SaaS while highlighting scalability as a practical advantage. By omitting D and F, it avoids misconceptions about mandatory on-premise centres and lack of mobile access. This combination reflects how many contemporary educational platforms actually operate.

Option B:
Option B is incorrect because it includes F, which wrongly asserts that cloud tools cannot be used on mobile devices. Cloud-based LMS and collaboration tools are routinely accessed via smartphones and tablets, so accepting F undermines accuracy.

Option C:
Option C is incorrect because it accepts F and omits B, thereby losing the explanation of PaaS. While A, C and E are true, the presence of F makes the entire combination invalid.

Option D:
Option D is incorrect because it includes D, which insists that institutions must always own physical data centres. In reality, cloud adoption often reduces the need for in-house server infrastructure, so this statement cannot be part of the correct set.

Binary numbers are expressed in base 2, so each position corresponds to a power of 2. To convert a binary number to decimal, we multiply each bit by the appropriate power of 2 and add these products. This process accounts for each positional contribution. Therefore, we use powers of 2 in the conversion.

Option A:
Option A, 8, would only be appropriate if we were converting from octal, where the base is 8. Using powers of 8 for binary would give incorrect results.

Option B:
Option B, 10, pertains to decimal positional representation. While the result is expressed in decimal, the positional weights for binary digits must still be powers of 2.

Option C:
Option C, 16, corresponds to hexadecimal, a base-16 system. Hex digits are weighted by powers of 16, not appropriate for direct binary conversion.

Option D:
Option D is correct because binary uses base 2 and each position is 2^n for some integer n. Converting by multiplying bits by powers of 2 is the standard method used in computing.

Converting 1234 to hexadecimal involves dividing repeatedly by 16 or expressing it as a sum of powers of 16. We can write 1234 as 4×16² + 13×16¹ + 2×16⁰, where 13 is represented by D in hexadecimal. This gives the compact form 4D2₁₆. Since this exactly reproduces 1234 when converted back to decimal, option C is correct.

Option A:
Option A has the middle digit B, which represents 11 in hexadecimal, and its expansion gives a smaller decimal value than 1234. The difference in the middle digit means the 16¹ place contributes less to the total. Hence, 4B2₁₆ does not correspond to 1234.

Option B:
Option B uses C (12) as the middle digit and therefore produces a decimal value different from 1234. Its place value expansion does not match the decomposition of 1234 into powers of 16. It is therefore not the correct hexadecimal representation.

Option C:
Option C uses D (13) as the middle digit and 2 in the units place, which precisely fits the decomposition of 1234 into 4×256 + 13×16 + 2. This structure makes it the only option that converts back to 1234. Thus, 4D2₁₆ is the correct hexadecimal form.

Option D:
Option D has E (14) in the middle position, increasing the value beyond 1234. Its decimal equivalent is larger and therefore cannot represent 1234. Hence, 4E2₁₆ is an incorrect choice.

Antivirus software scans files and system areas for known malware signatures and suspicious behaviour to protect computers from infection. It often provides real time monitoring and periodic system checks. Because its primary purpose is to combat viruses and related threats, it is called antivirus software. Thus, antivirus correctly completes the stem.

Option A:
Option A is correct because antivirus is the standard category name for security tools designed to identify and remove malicious code from ICT systems.

Option B:
Option B, compression, software reduces file size but does not address security threats.

Option C:
Option C, graphics, software focuses on image creation and editing and has no malware protection function.

Option D:
Option D, accounting, software helps manage financial records and is unrelated to detecting malicious programs.

The flipped classroom reverses the traditional order of instruction by shifting initial exposure to content outside the classroom, often through videos or e content. Classroom time is then used for active learning, clarification and application. ICT tools make this model practical and engaging. Hence, the correct term is flipped classroom.

Option A:
Option A is correct because flipped classroom is the standard phrase used for the described model where lecturing happens online and class time is for active work.

Option B:
Option B, virtual, classroom generally refers to fully online live sessions and does not imply the inversion of lecture and homework.

Option C:
Option C, open, classroom is a broader pedagogical idea and not specific to the online offline inversion described.

Option D:
Option D, distance, classroom simply denotes separation of teacher and learner in space and is not the same as flipping instructional phases.

Cloud computing describes a paradigm in which computing resources such as servers, storage and applications are delivered as services over the internet. Users can scale these resources up or down without owning the underlying infrastructure. This model supports pay as you go usage and promotes efficient utilisation of hardware. Therefore, the definition in the stem matches cloud computing.

Option A:
Option A is correct because it captures the key features of on demand network access to a shared pool of configurable resources. In cloud computing, providers manage the infrastructure while users access services through simple interfaces. This clearly aligns with the service based model described in the question.

Option B:
Option B, data mining, focuses on discovering patterns and knowledge from large datasets rather than delivering computing resources as a service. It may use cloud platforms but is a separate analytical process.

Option C:
Option C, word processing, refers to application software for creating and editing text documents and does not imply shared infrastructure on demand. It is only one type of application that could run within a cloud environment.

Option D:
Option D, virtual reality, concerns immersive simulated environments and is an application domain rather than a general model of delivering computing resources over the internet. It might use cloud support but does not define the paradigm itself.

Statements A, B and C collectively describe major ICT tools that support research quality, while D is overly optimistic and false. Databases widen access to literature, reference managers reduce citation errors and detection tools highlight suspicious similarities. However, these tools cannot replace careful ethical practice and rigorous methodology, so D cannot be accepted. Thus, the combination A, B and C only is correct.

Option A:
Option A is incomplete because it includes A and B but omits C. While discovery and referencing are vital, plagiarism detection systems also play an important role in maintaining academic integrity. Leaving out C makes the answer partial.

Option B:
Option B is correct because it combines all three accurate statements and excludes the unrealistic claim in D. It acknowledges that ICT supports, but does not automatically ensure, ethical and error-free research.

Option C:
Option C is incorrect because it groups A, C and D as correct statements and therefore accepts D. Since D suggests that mere use of ICT guarantees perfect research practice, this option conflicts with real-world limitations.

Option D:
Option D is incorrect because it treats B, C and D as correct, ignoring A. It also accepts D, which overstates the power of ICT and neglects the ongoing need for researcher judgement.

Statements A, B and D correctly highlight major advantages of ICT in teaching–learning, while statement C is clearly incorrect. ICT makes it possible to use multiple media formats and facilitates self-paced access to rich learning resources from across the world. However, it cannot guarantee identical learning speed or outcomes for all students because individual differences remain. Therefore, the combination that includes A, B and D but excludes C is the only fully correct set of statements.

Option A:
Option A is correct because it brings together the three true statements, A, B and D, and leaves out the false claim in C. It recognises that ICT supports multimodal, individualized and globally connected learning. Since it does not include the unrealistic guarantee in statement C, this option accurately reflects the real advantages of ICT.

Option B:
Option B is incorrect because it lists only A and B as correct, omitting D. While A and B are true, statement D is also correct in noting that ICT connects learners to a wide range of global resources. By failing to include D, this option does not capture all the correct statements.

Option C:
Option C is incorrect because it treats B and C as the correct set. Although B is true, statement C is false as ICT does not ensure identical pace and outcomes for all learners. Including C and excluding A and D makes this combination both incomplete and partially wrong.

Option D:
Option D is incorrect because it accepts all four statements as correct, thereby including C. Since statement C overstates the power of ICT by promising equal speed and outcomes for every student, this set cannot be considered accurate. A correct option must exclude that false statement.

A web browser functions as a client that sends HTTP requests to servers and renders the received HTML, CSS and script files into visible web pages. It provides navigation controls, bookmarking and security features for users. Without a browser, ordinary users would find it difficult to interact with web resources. Hence the application described in the stem is a web browser.

Option A:
Option A, web server, is the software or hardware that hosts websites and responds to browser requests; it does not display content for the end user.

Option B:
Option B is correct because programs like Chrome, Firefox and Edge are specifically designed for retrieving and showing web pages, matching the role outlined in the question.

Option C:
Option C, word processor, is used for document creation and editing and cannot interpret HTML for browsing the web.

Option D:
Option D, firewall, protects networks by filtering traffic and is a security component rather than a content display tool.