Friday, 16 October 2026

Which one of the following statements about a semiconductor is correct?

Consider the following statements about a geostationary orbit:

1. 1.It must be circular.
2. 2.It must lie in the equatorial plane.
3. 3.Its orbital period must equal Earth's sidereal rotation period.

In cloud computing, the shared-responsibility model generally means that:

Consider the following statements:

1. 1.Quantum entanglement can produce correlations not reproducible by a simple classical probabilistic model with local hidden variables.
2. 2.Quantum error correction seeks to protect quantum information from noise and decoherence.
3. 3.Increasing the number of physical qubits automatically guarantees a proportional increase in useful logical computing power.

Which of the statements given above are correct?

Consider the following statements about India's indigenous counter-drone architecture:

1. 1.Radar can contribute to detection and tracking.
2. 2.RF systems can detect or disrupt relevant radio links.
3. 3.EO/IR sensors can support target identification and tracking.
4. 4.A counter-drone system necessarily uses only hard-kill methods.

Which of the statements given above are correct?

Consider the following statements about xenotransplantation:

1. 1.Genetic modification of donor animals can be used to reduce immunological incompatibility.
2. 2.Xenotransplantation raises concerns about cross-species pathogen transmission.
3. 3.Successful xenotransplantation requires no immunological management because donor and recipient belong to different species.

Consider the following statements:

1. 1.Graphene is a one-atom-thick layer of carbon atoms arranged in a hexagonal lattice.
2. 2.Carbon nanotubes can be viewed as rolled-up graphene structures.
3. 3.Graphene necessarily behaves as a conventional three-dimensional bulk conductor.

Consider the following statements:

1. 1.Encryption can protect confidentiality but does not by itself guarantee system availability.
2. 2.Backups can reduce the impact of ransomware if they are isolated and recoverable.
3. 3.Multi-factor authentication can reduce the risk from stolen passwords but cannot eliminate every account-compromise pathway.

Which of the statements given above are correct?

A government agency moves a sensitive application to a cloud environment. It separates administrative identities, uses least privilege, encrypts sensitive data, segments workloads and continuously monitors access. Which principle is most comprehensively illustrated?

Consider the following pairs:

1. 1.Electronic support measures — search for, intercept and identify electromagnetic emissions
2. 2.Electronic attack — use of electromagnetic energy to degrade, disrupt or deceive an adversary's systems
3. 3.Electronic protection — measures intended to safeguard friendly systems from hostile electromagnetic effects
4. 4.Spectrum management — deliberate jamming of every adversary frequency