Hardware vs. Software basics.

Correct answer: A. Stored data becoming corrupted over time

Bit rot is a risk related to reliability of stored data. For exams connect it with backup and checking.

Correct answer: A. To check data integrity

A checksum can show whether data has changed or become corrupted. For exams connect it with file verification.

Correct answer: A. To verify source and integrity

A digital signature can show that software may come from a trusted source. For exams connect it with security and verification.

Correct answer: A. To check trust of code running at kernel level

A driver can run at a deep system level so trust is important. For exams connect signing with security.

Correct answer: A. Tampering with device or software during production or distribution

A supply chain attack can add risk to something that appears trusted. For exams do not limit security only to usage time.

Correct answer: A. Base component that starts trust

Root of trust can be a trusted base for starting security verification. For exams connect it with secure boot chain.

Correct answer: A. One trusted stage verifies the next stage

In a chain of trust boot or software stages can be checked in order. For exams connect it with secure startup.

Correct answer: A. To prove trusted state of a system remotely

Remote attestation can show whether a system is in expected software state. For exams connect it with security proof.

Correct answer: A. Binding data to a specific system state

In sealing data may open only in an expected trusted state. For exams connect it with hardware security.

Correct answer: A. To perform sensitive tasks in a separate secure area

A secure enclave can be a hardware supported security area. For exams understand it as different from normal app memory.

Correct answer: A. Extracting information from indirect signals like time power or heat

A side channel attack may use behavior signals rather than direct data. For exams security risks can be diverse.

Correct answer: A. To get better randomness for cryptography

Strong random numbers are important in security. For exams connect it with security hardware and cryptography.

Correct answer: A. Fingerprint sensor and encryption software

Fingerprint sensor is hardware and encryption software protects data. For exams identify multiple security layers.

Correct answer: A. To list components used in software

It can help transparency and security checking of software components. For exams connect it with modern software security.

Correct answer: A. Software depending on external components

Software can depend on other packages or libraries. For exams connect dependency with security and maintenance.

Correct answer: A. Organized collection of packages or code

The direct answer is A: a repository is an organized collection of software packages or code. In computing, a repository is a place where files, programs, libraries, or versions of code are stored and managed. A developer or user may obtain software from it, and a team may update and track code there. Step by step: software code is saved in files; related files are kept together; the organized storage place is called a repository. Option A is correct because it describes this organized collection. Option B, printer ink, is a physical consumable and has no connection with storing software code. Option C, monitor dust, is dirt and is not a computer resource or storage system. Option D, a mouse wire, is a hardware cable used for connection, not a software collection. Memory cue: repository means a place where something is kept; in software, think “code store.”

Correct answer: A. Keeping a large copy of system state

A system image can include operating system files and settings too. For exams treat it as larger than copying one normal file.

Correct answer: A. Restoring full system on empty or new hardware

Bare metal recovery can restore a full setup on hardware from system image. For exams identify recovery level.

Correct answer: A. Software controls hardware and hardware gives capacity to run software

Both are different but depend on each other in computer work. For exams remember both control and capacity.

Correct answer: A. Is this item a device instruction data service setting or security control

In expert questions one term can relate to many layers. For exams identifying role and layer is the safest method.