UGC NET Questions (Paper – 1)

200 = 128 + 64 + 8, so bits for 2⁷, 2⁶, and 2³ are 1, giving 11001000₂.

Option A:
Option A matches 128 + 64 + 8 = 200.

Option B:
Option B equals 196 (128 + 64 + 4).

Option C:
Option C equals 212 (128 + 64 + 16 + 4).

Option D:
Option D equals 168 (128 + 32 + 8).

Virtual labs use computer-based simulations and remote access technologies to allow students to perform experiments online. They are particularly useful when physical access to laboratories is limited or when experiments are expensive or hazardous. The stem describes online platforms that simulate experiments, which are correctly called virtual labs, making Option C the appropriate answer.

Option A:
Virtual labs can supplement hands-on work by allowing repeated practice and exploration of scenarios that are difficult to replicate physically. They illustrate the increasing role of ICT in the higher education system, especially in science and engineering disciplines. These features align closely with the scenario outlined in the question.

Option B:
Real-time physical labs refer to experiments conducted in an actual laboratory space with equipment, which is different from online simulations. Option A thus does not match the description of experiments done virtually.

Option C:
Open book refers to a type of examination where students can consult materials, not to laboratories or experimental platforms. Option B is therefore unrelated to the stem.

Option D:
Manual-only labs would suggest exclusively physical, hands-on work without digital tools, which is precisely the opposite of virtual labs. Hence, Option D is not correct.

In mathematical induction, there are two main parts: the base case and the inductive step. The inductive step assumes that the statement holds for n = k (the induction hypothesis) and then proves that it must also hold for n = k + 1. This step is called the inductive step because it extends the truth from one case to the next. Hence, the description in the question refers to the inductive step.

Option A:
The basis or base step is where we verify that the statement holds for the initial value, usually n = 1 or n = 0. It does not involve the assumption "if true for k then true for k + 1." Therefore, basis does not match the part described in the question.

Option B:
Verification is a general term that could refer to checking any part of the proof. It is not the standard technical name for the specific step that connects n = k to n = k + 1. Hence, it is too vague and not suitable as an answer.

Option C:
The inductive step is correct because it formalises the logical link needed to propagate the truth of the statement from one natural number to the next. Once both the base case and inductive step are established, the statement is proved for all natural numbers in the domain. Recognising this terminology is important for understanding proofs in discrete mathematics and reasoning.

Option D:
Concluding step might describe the final remarks of a proof, but it is not a standard name for the process of moving from k to k + 1. The main logical engine in induction is the inductive step, not a generic conclusion. Thus, this option is not accurate.

The terms follow the rule aₙ = n⁴ + 5n with n starting from 1. Substituting n = 1, 2, 3, 4 and 5 gives 6, 26, 96, 276 and 650, exactly the given sequence. Applying the same expression for n = 6 produces 1326. Therefore 1326 is the unique value that continues this polynomial pattern without any change in the rule.

Option A:
Option A gives 1326, which is precisely the value obtained from aₙ = n⁴ + 5n when n = 6. It preserves the same functional relationship between n and aₙ that generates all earlier terms. Hence this option correctly represents the next term of the series.

Option B:
Option B proposes 1314, which is close but does not equal the value from n⁴ + 5n at n = 6. To obtain 1314 we would need to subtract 12 from the polynomial result only at this step. Since no such irregular adjustment appears in the previous terms, 1314 cannot be the correct continuation.

Option C:
Option C suggests 1338 as the next term. This number is 12 greater than the value predicted by the rule for n = 6. Introducing such an extra increment only at the sixth term would break the consistent algebraic pattern, so 1338 is not acceptable.

Option D:
Option D gives 1350, which deviates even further from the calculated value 1326. No single formula of the form n⁴ + 5n can generate the first five terms and then jump to 1350 next. Because it would require altering the rule at the last term, this option is incorrect.

Synchronous communication occurs when participants interact at the same time,allowing immediate feedback. Video conferencing classes enable teachers and students to see and talk to each other simultaneously,even from different locations. This fits the definition of synchronous communication.

Option A:
Asynchronous communication,like email,does not require participants to be online at the same time.

Option B:
Synchronous interaction supports two way questioning and clarification in real time,making this option correct.

Option C:
One way communication would not allow immediate responses.

Option D:
Intrapersonal communication happens within one person and is not mediated by online platforms.

Statements A, B and C are correct, while D is incorrect. A is true because the cognitive component emphasises how learners think about and make sense of information. B is true since affective aspects such as interest, anxiety and attitude shape how messages are received. C is true because psychomotor elements relate to physical performance of tasks based on communicated instructions. D is false because effective teaching should integrate cognitive, affective and psychomotor dimensions rather than focusing on cognition alone.

Option A:
Option A presents A and B only and omits C, thereby ignoring the role of psychomotor action in classroom tasks such as experiments or demonstrations. As C is also a correct statement, A and B only does not represent the full set of correct components. Hence this option is incomplete.

Option B:
Option B combines B and C but leaves out A, failing to acknowledge the central role of understanding and processing information in classroom communication. While B and C are correct, excluding A makes the description of components partial. Therefore B and C only cannot be the correct answer.

Option C:
Option C includes A, B and C, accurately summarising cognitive, affective and psychomotor components and rejecting the narrow view in D. By bringing together all the true statements and excluding the false one, A, B and C only is the correct option.

Option D:
Option D treats all four statements as correct, but D wrongly claims that effective communication can ignore affective and psychomotor aspects. Since D contradicts holistic views of learning, including it invalidates the combination. Thus this option is not acceptable.

The Domain Name System is a distributed database that maps domain names to IP addresses. When users type a domain name, DNS servers resolve it to the corresponding numerical address so that communication can occur. This makes the internet more user friendly by hiding complex numbers behind simple names. Thus, the service described is the Domain Name System.

Option A:
Option A is correct because Domain Name System is the officially recognised expansion of DNS and matches the function of name resolution.

Option B:
Option B, Dynamic Network Service, is not the standard term and does not appear in networking standards as the meaning of DNS.

Option C:
Option C, Digital Number Server, is an invented phrase and does not accurately describe the established internet naming infrastructure.

Option D:
Option D, Domain Navigation Service, may sound related but is not the accepted name for the protocol and system performing this task.

Statements A, B and D are correct, while C is the only wrong statement. A is correct because ethical feedback must be honest but also respectful in language and tone. B is correct as publicly shaming or negative comparisons can damage students’ dignity and should be avoided. D is correct because sarcastic remarks that belittle students undermine trust and should not be used in feedback. C is wrong since confidential aspects of performance should not be discussed openly in public spaces; doing so violates privacy.

Option A:
Option A is incorrect because it groups A and C as wrong statements. A is in fact a correct ethical guideline emphasising honesty combined with respect. Although C is wrong, the inclusion of A makes this option an inaccurate representation of the wrong statements.

Option B:
Option B is incorrect because it lists B and C as wrong, even though B correctly highlights the harm caused by public negative comparisons. By treating B as wrong, the option misrepresents accepted ethical standards in assessment communication. Therefore B and C only cannot be chosen.

Option C:
Option C is incorrect because it pairs C and D as wrong statements. While C is wrong, D is correct in warning against sarcastic remarks that ridicule students’ efforts. Including D among wrong statements makes this combination logically inconsistent.

Option D:
Option D is correct because it singles out C only as the wrong statement. C wrongly suggests that confidential aspects of student performance may be openly discussed, which violates privacy and ethical norms. By keeping A, B and D outside the wrong set as correct principles, this option aligns with ethical communication practices.

A viruddha hetu is one whose accepted vyāpti actually leads to a conclusion contrary to what the reasoner wants to prove. Instead of supporting the intended sādhya, the middle term supports its negation. This makes the inference self defeating, because if the hetu is accepted, the conclusion must be the opposite of the stated thesis. Such a reason is deeply defective, as it undermines the very claim it is meant to justify.

Option A:
Option A characterises an asiddha hetu, where the middle term is not established in the pakṣa; this is a different kind of fallacy.

Option B:
Option B mentions over narrowness but does not capture the central feature of viruddha, namely reversing the intended conclusion.

Option C:
Option C correctly identifies that a viruddha hetu proves the contrary of the thesis on the basis of its own vyāpti, making the argument logically self destructive.

Option D:
Option D focuses only on the source of evidence; dependence on scripture is not, by itself, what defines viruddha in technical classifications of hetvābhāsa.

Statements A, B, C and E provide a correct understanding of triangulation and mixed-methods research, whereas statement D is wrong. Statement A is true because triangulation involves using multiple methods, sources, investigators or theories to study the same phenomenon. Statement B is correct as triangulation is often used to enhance credibility and validity by cross-checking findings, and statement C accurately defines mixed-methods research as combining qualitative and quantitative approaches. Statement E is also true because mixed-methods designs may implement qualitative and quantitative phases either sequentially or concurrently, while statement D is false since triangulation is not restricted to quantitative experiments and is widely used in qualitative and mixed-methods studies as well.

Option A:
Option A groups A, B and C, all of which are correct, but leaves out E. By omitting E, it does not fully reflect how mixed-methods studies can organise qualitative and quantitative phases over time. Since E is also a true statement, this combination is incomplete and cannot be the correct answer.

Option B:
Option B includes B, C and E but omits A. Although B, C and E are true, leaving out A ignores the general definitional statement that triangulation uses multiple methods, sources or investigators. Because the complete set of correct statements must contain A as well, this option is inadequate.

Option C:
Option C correctly lists A, B, C and E and excludes D, which is false. It captures the meaning and purpose of triangulation, the nature of mixed-methods research and the possible sequencing of qualitative and quantitative components. Since it contains all and only the true statements, this option is the best answer.

Option D:
Option D combines A, C, D and E and thereby includes D, which incorrectly restricts triangulation to quantitative experimental designs. Triangulation is widely used outside experimental settings, particularly in qualitative and mixed-methods studies. The inclusion of a false statement invalidates this combination.

Phishing is a social engineering technique in which attackers disguise themselves as trustworthy entities in electronic communication. They often use emails or websites that closely resemble genuine ones to lure users into entering sensitive information. Such data can then be misused for identity theft or financial fraud. The scenario in this option captures the deceptive and fraudulent nature of phishing.

Option A:
This option correctly emphasises that the email appears legitimate but is actually fraudulent. The attacker’s goal is to obtain confidential data such as login credentials, bank details or OTPs. Recognising such attempts is an important ICT security awareness outcome for students and staff.

Option B:
Legitimately updating a password on the official portal is a recommended security practice, not an example of fraud. The user interacts with a genuine site and improves account protection. Hence, this behaviour is the opposite of phishing.

Option C:
Regular backups contribute to data availability and disaster recovery, not to social engineering attacks. They are a positive security measure undertaken by administrators. Therefore, this action is unrelated to phishing.

Option D:
Downloading open-source software from verified sources can be safe if checksums and signatures are verified. This behaviour shows cautious ICT use rather than falling for deceptive schemes. Thus, it is not an example of phishing.

Ethical research practice requires acknowledging the intellectual contributions of others, regardless of whether material is accessed in print or online. Digital tools can help track references, check similarity and manage citations, but they do not replace the researcher’s responsibility. Quoted material must be clearly indicated and kept within reasonable limits, with the main argument reflecting original analysis. This approach respects copyright, academic norms and the integrity of the scholarly record.

Option A:
This option correctly integrates the use of ICT tools with human judgement. Plagiarism software can highlight overlaps, but researchers must decide what constitutes fair use and paraphrase appropriately. Transparent citation allows others to verify claims and trace ideas.

Option B:
Copying without acknowledgement is plagiarism, even if the source is open access or freely available. Ethical norms focus on honesty about authorship, not on the cost or accessibility of resources.

Option C:
Intentionally altering digital images or data to fit a hypothesis is scientific misconduct. ICT tools make such manipulation easier, which increases the responsibility to document methods and preserve raw data.

Option D:
Simultaneous submission violates many journals’ policies and can waste editorial resources. ICT makes it easier to submit to multiple venues, so researchers must be careful to follow ethical guidelines on exclusivity.

Statements A, B and D together describe core qualities of a good research problem. Clarity and lack of ambiguity help readers and the researcher understand exactly what is being studied, feasibility ensures that the problem can realistically be investigated and significance justifies why the study matters. Statement C is false because trivial problems contribute little to knowledge, and E is false because overly broad and unrelated issues reduce focus and coherence. Thus the correct combination must include only A, B and D.

Option A:
Option A is incomplete because it omits D, even though the significance of a problem is a crucial criterion for deciding whether research is worthwhile. Without D, the option does not fully represent what makes a problem “good” in research terms.

Option B:
Option B is correct because it includes the three statements that simultaneously emphasise clarity, feasibility and significance. It excludes C and E, both of which misrepresent desirable qualities by calling for trivial or overly broad problems. This combination therefore reflects standard guidance on problem formulation.

Option C:
Option C is incorrect as it incorporates C, which wrongly suggests that triviality is desirable. Although B and D are true, including C corrupts the set of statements and makes the option unacceptable.

Option D:
Option D is incorrect because it brings in E, which proposes an excessively broad and unfocused problem, and omits B, which focuses on feasibility. A correct option cannot mix such a false requirement with true ones.

Option E is also wrong because it retains C, the triviality statement, within an otherwise partly correct set. The presence of C means the option no longer represents an acceptable description of a good research problem.

The history threat arises when events outside the experimental treatment occur between measurements and differentially affect participants’ performance. For example, a school-wide programme or a major news event may influence attitudes or achievement independent of the treatment. If not controlled, these events can be mistaken for treatment effects. Thus, external events between pre-test and post-test constitute the history threat.

Option A:
Maturation refers to natural changes in participants over time, such as growth or fatigue, that can affect outcomes even without external events. While also a threat to internal validity, it is conceptually distinct from history.

Option B:
The history effect is particularly problematic in longer studies where many external influences can operate. Researchers may use control groups, randomisation and careful scheduling to reduce such influences. Because the stem emphasises external events occurring between measurements, history is the correct label.

Option C:
Testing effects occur when taking a pre-test influences scores on the post-test, for instance by sensitising participants to content or improving familiarity with the test format. This does not refer to external events.

Option D:
Regression, or regression toward the mean, occurs when extreme scores tend to move closer to the average upon retesting due to statistical reasons. It is different from history, which involves real-world happenings.

The track changes feature records each modification to a document, marking insertions, deletions and formatting changes so they can be reviewed later. It supports collaborative editing between authors and reviewers. This is especially useful in academic and administrative settings. Thus, the described feature is track changes.

Option A:
Option A is correct because track changes is the recognised name in word processors for visualising and managing edits.

Option B:
Option B, mail merge, creates multiple personalised copies and does not highlight revisions.

Option C:
Option C, auto correct, automatically fixes common typing errors but does not display explicit edit histories.

Option D:
Option D, thesaurus, suggests synonyms and is unrelated to tracking document edits.