UGC NET Questions (Paper – 1)

A firewall acts as a barrier between a trusted internal network and untrusted external networks such as the internet. It inspects traffic according to predefined rules and decides whether to allow or block specific packets. This helps prevent unauthorised access and reduces the exposure of internal systems to external threats. Therefore, the mechanism described is a firewall.

Option A:
Option A is correct because firewalls are explicitly defined as security systems that enforce an access control policy between networks, matching the role outlined in the stem. They can be implemented in hardware, software or a combination of both.

Option B:
Option B, gateway, is a broader term for a device or software that connects networks using different protocols and may not necessarily enforce detailed security rules.

Option C:
Option C, bridge, connects network segments at the data link layer and forwards frames based on physical addresses, without usually providing extensive security filtering.

Option D:
Option D, proxy server, can add some security by mediating requests but is primarily designed for caching and content control rather than acting as the main perimeter filter.

A positional number system whose base is 3 uses three distinct symbols, typically 0, 1 and 2. Such a base-3 system is known as the ternary system. The prefix “ter” or “tern” is related to the Latin for three, which aligns with the base value. Therefore, the correct term for a base-3 system is ternary.

Option A:
Option A, dual, commonly refers to something involving two parts but is not the standard mathematical term for base 2. Even if loosely related to two, it does not accurately describe a base-3 system.

Option B:
Option B, quinary, refers to a base-5 system that uses five symbols, usually 0 through 4. This is not suitable for a number system that uses only three symbols.

Option C:
Option C is correct because ternary explicitly denotes a system built on the number three. In a ternary number system, each position represents a power of 3. This matches the requirement of a base-3 system.

Option D:
Option D, senary, is used for base 6, where six different digit symbols are employed. Since base 3 uses only three digits, senary is not the correct name.

A strong password is one that resists brute-force and guessing attacks by being sufficiently long, complex and unpredictable. Combining letters in different cases, digits and special characters increases the number of possible combinations dramatically. This reduces the likelihood that attackers can guess or crack it quickly. Hence the kind of password described in the stem is rightly called a strong password.

Option A:
Option A, default password, refers to factory-set credentials like "admin" or "1234" that are widely known and extremely insecure. They are the opposite of the secure practice promoted in the question.

Option B:
Option B is correct because security guidelines consistently advise users to create strong passwords with a mixture of character types and to avoid common words or patterns. The description given is a classic definition of password strength.

Option C:
Option C, plain text key, suggests that the password is stored or transmitted without encryption, which is a vulnerability rather than a protective measure. It does not refer to complexity or unpredictability.

Option D:
Option D, shared password, indicates that multiple people know the same secret, which undermines accountability and security. Sharing passwords is discouraged in good security policies.

Phishing exploits human trust by sending messages that appear to come from legitimate institutions such as banks or universities. These messages typically ask users to click a link and enter passwords or other sensitive data on fake websites. The goal is to steal credentials or financial information for misuse. This deceptive practice is known as phishing.

Option A:
Option A, spooling, is a legitimate operating system technique for managing input and output operations and has no inherent fraudulent intent. It is unrelated to tricking users into revealing information.

Option B:
Option B is correct because phishing is precisely defined as attempting to acquire sensitive information by pretending to be a trustworthy entity in digital communication. The stem exactly matches this definition.

Option C:
Option C, farming, in its usual sense relates to agriculture and does not describe online fraud. Even in computing, related terms like pharming refer to different technical attacks.

Option D:
Option D, defragging, is a maintenance process that reorganises data on a disk to improve performance and has nothing to do with email based deception.

Statements A, B and D accurately describe meaningful administrative uses of ICT, while C trivialises its role and is false. Student Information Systems, automation tools and intelligent timetabling all streamline school operations and communication. Entertainment videos may be used occasionally, but they do not define administrative ICT. Thus, the combination A, B and D only is correct.

Option A:
Option A is incomplete because it lists only A and B and omits D. While record-keeping and timetabling are important, using ICT for timely communication with parents is also a key administrative function.

Option B:
Option B is incomplete because it includes B and D only and leaves out A. A is fundamental, as student record management is a central reason institutions adopt administrative ICT systems.

Option C:
Option C is incorrect because it combines A, C and D and thereby accepts C. C reduces ICT to entertainment, something that does not reflect its substantial administrative role in modern schools.

Option D:
Option D is correct because it gathers all three true statements and excludes C, which misrepresents ICT as primarily entertainment-focused in school administration.

Statements A, B and D correctly describe the participatory and collaborative nature of Web 2.0 tools, while C is clearly false. Learners can actively create and edit content in blogs, wikis and social bookmarking sites, rather than merely consuming teacher-uploaded materials. Wikis support joint writing projects and bookmarking tools allow groups to share curated links. The claim in C that only teachers can post materials ignores the essence of Web 2.0 as read–write platforms.

Option A:
Option A is incomplete because it includes only A and B and omits D. While blogs and wikis do promote collaboration, ignoring social bookmarking underestimates the range of tools that support shared resource curation. Therefore, this option does not contain all the correct statements.

Option B:
Option B is incomplete because it groups A and D but leaves out B. Statement B gives a concrete educational use of wikis, so its omission makes the explanation of Web 2.0 in learning less specific and less complete.

Option C:
Option C is incomplete and also misdirected because it lists only B and D and omits A. Statement A provides the broader conceptual description of Web 2.0 as user-generated and collaborative, which is crucial for understanding why B and D are significant.

Option D:
Option D is correct because it unites A, B and D, acknowledging both the general nature of Web 2.0 and specific tools like wikis and social bookmarking. It properly excludes C, which contradicts the learner-centric, participatory character of these environments.

Word processing software is designed to create, edit and format textual documents such as letters, reports and articles. It offers features like spell check, styles, tables and mail merge that support professional document preparation. These capabilities match the examples of Word and Writer given in the stem. Therefore, the correct category is word processing software.

Option A:
Option A, database, refers to systems for organising and querying large structured datasets and is not focused on document text editing. Although some word processors can link to databases, that is not their primary function.

Option B:
Option B is correct because Word and Writer are classic word processors, and ICT curricula explicitly identify them as word processing applications within the broader class of application software.

Option C:
Option C, system, is too general and typically refers to system software rather than specialised document tools.

Option D:
Option D, antivirus, protects computers from malware and does not support tasks such as formatting paragraphs or inserting references.

Presentation software is designed to organise content into slides that can be projected or displayed on screens. Teachers can combine bullet points, pictures, charts and sometimes embedded videos to structure explanations. This helps them maintain logical flow and provides students with visual cues that complement oral explanations. Accordingly, slide creation and display is the primary educational use of such software.

Option A:
Audio editing is typically handled by specialised digital audio workstations, not by standard presentation tools. While sound clips can be embedded, mixing audio is not the core purpose.

Option B:
This option accurately reflects the main design goal of programs like PowerPoint. By allowing easy rearrangement of slides and use of design themes, they support clear communication and focus student attention on key ideas.

Option C:
Database formatting and server configuration are tasks for database management systems and administrators. Presentation programs do not provide these functions.

Option D:
Antivirus operations rely on security software that scans files and processes; presentation tools are not built for threat detection or removal.

The Information Technology Act, 2000 was enacted in India to give legal validity to electronic transactions and digital signatures. It lays down provisions for electronic records, offences related to computer misuse and the role of certifying authorities. This Act underpins many e governance initiatives by ensuring that digital documents are recognised in law. Thus, the blank should be filled with Information Technology.

Option A:
Option A, Right to Education, Act deals with compulsory education for children and does not address electronic records or digital signatures.

Option B:
Option B, Copyright, Act concerns protection of intellectual property rights rather than general recognition of electronic documents.

Option C:
Option C, Indian Evidence, Act governs admissibility of evidence in courts but predates widespread use of digital signatures and is not the main law granting legal status to them.

Option D:
Option D is correct because the Information Technology Act, 2000 explicitly states that electronic records and digital signatures are legally valid, which is exactly what the question refers to.

Knowledge management systems aim to capture, organise and share organisational knowledge so it can be reused and built upon. ICT tools like intranets, databases and collaborative platforms store explicit knowledge and facilitate communication among staff. This infrastructure helps prevent loss of expertise when individuals leave. Thus, the repositories described in the stem belong to knowledge management systems.

Option A:
Option A, transaction processing, focuses on recording routine operations such as sales and payments and does not primarily manage organisational knowledge.

Option B:
Option B is correct because textbooks on information systems describe knowledge management systems as using ICT to support storage and dissemination of codified knowledge.

Option C:
Option C, payroll, handles salary calculations and is a specific administrative system, not a broad knowledge repository.

Option D:
Option D, physical inventory, concerns tracking tangible goods and is not about capturing intellectual capital.

Authentication is the process of verifying that a user or system is who they claim to be before granting access to resources. Usernames and passwords are basic credentials used in this process. Strong authentication is fundamental to safeguarding ICT systems from unauthorised use. Hence, the login procedure described is an example of authentication.

Option A:
Option A is correct because authentication explicitly refers to identity verification using credentials such as passwords.

Option B:
Option B, authoring, refers to creating content and is not related to checking identity.

Option C:
Option C, archiving, is the long term storage of information, not controlling access to systems.

Option D:
Option D, advertising, aims to promote products or services and does not verify user identity.

DIKSHA serves as a national digital infrastructure for school education, hosting interactive textbooks, lesson plans, videos and quizzes aligned with curricula. Teachers can access professional development modules and share resources, while students can learn using QR-coded textbooks and mobile apps. The platform thus integrates ICT into everyday teaching and learning processes.

Option A:
Option A correctly presents DIKSHA as an educational content and training platform, not as a purely administrative or entertainment portal. It highlights mobile and web delivery, which are key ICT components.

Option B:
Option B about cricket matches has no relation to school education or digital learning content.

Option C:
Option C directly contradicts DIKSHA’s purpose of promoting, not banning, digital resource use.

Option D:
Option D focuses on entertainment benefits unrelated to curriculum-based learning or teacher development.

Since the leading bit is 1, 11110010₂ is negative in two's complement. Inverting the bits gives 00001101₂, and adding 1 yields 00001110₂, which is 14 in decimal. Therefore, the original pattern represents −14.

Option A:
Option A properly uses the inversion-plus-one procedure to decode the two's complement representation. It finds the magnitude as 14 and attaches the negative sign, giving −14.

Option B:
Option B, −12, would require the magnitude after inversion and increment to be 12, which does not match the computed 14.

Option C:
Option C, −10, similarly fails to align with the actual magnitude and indicates a miscalculation.

Option D:
Option D, −18, corresponds to a different two's complement pattern (11101110₂) and not to 11110010₂.

Netiquette combines the words network and etiquette to describe socially acceptable conduct in digital communication. It includes guidelines such as avoiding abusive language, respecting privacy and not spamming others. Following netiquette helps maintain constructive and safe online communities. Therefore the behavioural norms described in the question are referred to as netiquette.

Option A:
Option A, cybercrime, refers to illegal activities conducted using computers or networks, such as hacking or fraud. While breaches of netiquette may sometimes overlap with crime, the term is much broader and legal in nature rather than about etiquette.

Option B:
Option B is correct because netiquette specifically addresses proper manners and respect in online interactions. It is frequently discussed in educational programmes that teach responsible use of ICT.

Option C:
Option C, e-commerce, denotes buying and selling goods or services over electronic networks and does not inherently address behavioural rules.

Option D:
Option D, data mining, refers to analytical techniques for discovering patterns in large datasets and is unrelated to norms of communication.

In 345, the digit 5 is in the units place, 4 in the tens place and 3 in the hundreds place. The tens place corresponds to 10^1, so the value of 4 there is 4×10^1. Therefore, the exponent for the tens place is 1.

Option A:
Option A, exponent 0, refers to the units place where the digit 5 resides. Assigning 10^0 to the tens place would ignore the role of tens in the number.

Option B:
Option B, exponent 2, gives 10^2 = 100, which corresponds to the hundreds place occupied by digit 3. It does not describe the tens place.

Option C:
Option C, exponent 3, would mean a place value of 1000, which is not present in the three-digit number 345. This exponent is not related to the digit 4 in the tens position.

Option D:
Option D is correct because the tens place always carries the weight of 10^1 in decimal positional notation. Thus, 4 in that position contributes 40 to the total value.