WGU D686 OPERATING SYSTEMS FOR
COMPUTER SCIENTISTS OBJECTIVE
ASSESSMENT OA V1 V2 2026 FULL
QUESTIONS WITH ACCURATE ANSWERS
100 PERCENT CORRECT GRADED A+
⩥ What is a logic bomb? Answer: Malicious code that triggers a harmful
action when specific conditions are met.
⩥ What is a back door? Answer: A hidden way to bypass normal
authentication and gain unauthorized access to a system.
⩥ What is session hijacking? Answer: An attacker takes over a valid user
session, often by stealing session cookies or tokens.
⩥ What is social engineering? Answer: Manipulating people into
divulging confidential information or performing actions that
compromise security.
⩥ What is the difference between breach of confidentiality and breach of
integrity? Answer: Confidentiality breach exposes private data; integrity
breach alters or corrupts data.
, ⩥ What is a denial-of-service (DoS) attack? Answer: An attack that
disrupts system services by overwhelming resources.
⩥ What is the difference between ransomware and spyware? Answer:
Ransomware encrypts files, demanding payment; spyware secretly
collects user data.
⩥ What is the difference between a boot virus and a rootkit virus?
Answer: Boot virus infects boot sector; rootkit virus hides itself and
grants unauthorized access.
⩥ What is the difference between a virus and a worm? Answer: Virus
attaches to files and needs user action; worm spreads automatically
without user intervention.
⩥ What is a Trojan horse? Answer: Malicious software disguised as
legitimate, often used to gain unauthorized access.
⩥ What is a code-injection attack? Answer: Attacker inserts malicious
code into a program or system, often through input fields.
⩥ What is a sandbox? Answer: Isolated environment for testing code
safely without affecting the system.
COMPUTER SCIENTISTS OBJECTIVE
ASSESSMENT OA V1 V2 2026 FULL
QUESTIONS WITH ACCURATE ANSWERS
100 PERCENT CORRECT GRADED A+
⩥ What is a logic bomb? Answer: Malicious code that triggers a harmful
action when specific conditions are met.
⩥ What is a back door? Answer: A hidden way to bypass normal
authentication and gain unauthorized access to a system.
⩥ What is session hijacking? Answer: An attacker takes over a valid user
session, often by stealing session cookies or tokens.
⩥ What is social engineering? Answer: Manipulating people into
divulging confidential information or performing actions that
compromise security.
⩥ What is the difference between breach of confidentiality and breach of
integrity? Answer: Confidentiality breach exposes private data; integrity
breach alters or corrupts data.
, ⩥ What is a denial-of-service (DoS) attack? Answer: An attack that
disrupts system services by overwhelming resources.
⩥ What is the difference between ransomware and spyware? Answer:
Ransomware encrypts files, demanding payment; spyware secretly
collects user data.
⩥ What is the difference between a boot virus and a rootkit virus?
Answer: Boot virus infects boot sector; rootkit virus hides itself and
grants unauthorized access.
⩥ What is the difference between a virus and a worm? Answer: Virus
attaches to files and needs user action; worm spreads automatically
without user intervention.
⩥ What is a Trojan horse? Answer: Malicious software disguised as
legitimate, often used to gain unauthorized access.
⩥ What is a code-injection attack? Answer: Attacker inserts malicious
code into a program or system, often through input fields.
⩥ What is a sandbox? Answer: Isolated environment for testing code
safely without affecting the system.
