Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
Which statement best describes antivirus software?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Antivirus software is designed to detect and help prevent or contain malware infections.
• Modern antivirus products may use signatures, heuristics, behavioral monitoring and cloud-based intelligence.
• Antivirus is an important security control, but it cannot guarantee protection against every possible threat.
• Modern antivirus products may use signatures, heuristics, behavioral monitoring and cloud-based intelligence.
• Antivirus is an important security control, but it cannot guarantee protection against every possible threat.
వివరణ:
Question 2
ప్రశ్న 2
Which description most accurately characterizes a computer virus?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A computer virus is a form of malicious code capable of self-replication by infecting other programs or files.
• A traditional virus depends on a host program or file rather than functioning as an independent networking device.
• Viruses are one category within the broader concept of malware.
• A traditional virus depends on a host program or file rather than functioning as an independent networking device.
• Viruses are one category within the broader concept of malware.
వివరణ:
Question 3
ప్రశ్న 3
What is the main purpose of real-time antivirus protection?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Real-time protection continuously monitors activity rather than waiting only for a manually initiated scan.
• It can inspect files when they are accessed and monitor processes or behaviors associated with threats.
• It complements rather than replaces scheduled scans, security updates and other defensive measures.
• It can inspect files when they are accessed and monitor processes or behaviors associated with threats.
• It complements rather than replaces scheduled scans, security updates and other defensive measures.
వివరణ:
Question 4
ప్రశ్న 4
Why should antivirus security-intelligence or definition updates be installed regularly?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Antivirus products rely partly on current security intelligence to recognize known and emerging threats.
• Updates can add newly identified signatures, patterns and other detection information.
• An antivirus installation with outdated security intelligence can be less effective against recently identified malware.
• Updates can add newly identified signatures, patterns and other detection information.
• An antivirus installation with outdated security intelligence can be less effective against recently identified malware.
వివరణ:
Question 5
ప్రశ్న 5
What is signature-based malware detection?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Signature-based detection compares files or other scanned content with known malware-identifying patterns.
• It is particularly useful for detecting threats that have already been analyzed and represented in security intelligence.
• Because entirely new threats might not yet have an exact known signature, modern antivirus products also use additional detection techniques.
• It is particularly useful for detecting threats that have already been analyzed and represented in security intelligence.
• Because entirely new threats might not yet have an exact known signature, modern antivirus products also use additional detection techniques.
వివరణ:
Question 6
ప్రశ్న 6
Why are heuristic and behavior-based detection techniques useful in modern antivirus software?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Heuristic techniques look for suspicious characteristics rather than relying exclusively on exact known signatures.
• Behavior-based protection can monitor what programs and processes actually do on a system.
• These methods improve the ability to detect new, modified or previously unseen malware, although no detection technique is infallible.
• Behavior-based protection can monitor what programs and processes actually do on a system.
• These methods improve the ability to detect new, modified or previously unseen malware, although no detection technique is infallible.
వివరణ:
Question 7
ప్రశ్న 7
What does quarantining a detected malicious file normally accomplish?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Quarantine isolates a suspected or confirmed threat from normal system use.
• A quarantined item is blocked from operating normally and can subsequently be removed or, if proven safe, restored.
• Quarantine is therefore different from immediately allowing the detected file to execute.
• A quarantined item is blocked from operating normally and can subsequently be removed or, if proven safe, restored.
• Quarantine is therefore different from immediately allowing the detected file to execute.
వివరణ:
Question 8
ప్రశ్న 8
What is a false positive in antivirus detection?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A false positive occurs when security software classifies a safe item as malicious.
• This differs from a false negative, in which an actual threat is not detected.
• Suspected false positives should be investigated rather than automatically allowed without verification.
• This differs from a false negative, in which an actual threat is not detected.
• Suspected false positives should be investigated rather than automatically allowed without verification.
వివరణ:
Question 9
ప్రశ్న 9
Which statement best describes a Quick scan in Microsoft Defender Antivirus?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A Quick scan concentrates on locations where malware is particularly likely to be active or registered to start.
• Microsoft generally recommends Quick scan for routine scheduled and on-demand scanning when combined with real-time protection.
• A Full scan covers a broader set of locations, while an Offline scan uses a separate operating environment.
• Microsoft generally recommends Quick scan for routine scheduled and on-demand scanning when combined with real-time protection.
• A Full scan covers a broader set of locations, while an Offline scan uses a separate operating environment.
వివరణ:
Question 10
ప్రశ్న 10
A user wants Microsoft Defender Antivirus to scan one particular folder or a specific USB drive rather than perform a general system-wide scan. Which scan type is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A Custom scan allows the user to specify the particular file, folder or location to examine.
• It is suitable when attention is focused on a particular USB drive or directory.
• A Full scan is broader, while an Offline scan is designed for a different malware-remediation situation.
• It is suitable when attention is focused on a particular USB drive or directory.
• A Full scan is broader, while an Offline scan is designed for a different malware-remediation situation.
వివరణ:
Question 11
ప్రశ్న 11
Which comparison between a Quick scan and a Full scan in Microsoft Defender Antivirus is correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A Quick scan targets particularly important locations associated with active malware.
• A Full scan extends scanning across a much broader portion of the system and its accessible storage.
• Because it examines more data, a Full scan can consume substantially more time and system resources.
• A Full scan extends scanning across a much broader portion of the system and its accessible storage.
• Because it examines more data, a Full scan can consume substantially more time and system resources.
వివరణ:
Question 12
ప్రశ్న 12
A computer is suspected of containing persistent malware that may interfere with scanning while normal Windows is running. Which Microsoft Defender feature is specifically designed to scan after restarting into an isolated environment outside the usual Windows operating environment?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Microsoft Defender Offline restarts the computer and performs its scan outside the usual Windows operating environment.
• This makes it useful when persistent malware might hide or interfere with detection while Windows is running normally.
• After the offline scan is completed, the computer restarts and loads Windows normally.
• This makes it useful when persistent malware might hide or interfere with detection while Windows is running normally.
• After the offline scan is completed, the computer restarts and loads Windows normally.
వివరణ:
Question 13
ప్రశ్న 13
Which statement about antivirus exclusions reflects good security practice?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An antivirus exclusion tells the security product not to perform normal scanning on specified content under the applicable conditions.
• This creates a potential protection gap that attackers could exploit if unnecessary exclusions are configured.
• Exclusions should therefore be kept to the minimum required for genuine compatibility or operational reasons.
• This creates a potential protection gap that attackers could exploit if unnecessary exclusions are configured.
• Exclusions should therefore be kept to the minimum required for genuine compatibility or operational reasons.
వివరణ:
Question 14
ప్రశ్న 14
Which practice provides the strongest overall protection when antivirus software is already installed on a computer?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Antivirus software is most effective as one part of a layered security approach.
• Operating-system and application updates patch vulnerabilities that malware could otherwise exploit.
• Safe browsing, trusted software sources and current antivirus protection collectively reduce malware risk.
• Operating-system and application updates patch vulnerabilities that malware could otherwise exploit.
• Safe browsing, trusted software sources and current antivirus protection collectively reduce malware risk.
వివరణ:
Question 15
ప్రశ్న 15
An unknown USB drive must be examined before its files are opened on a Windows computer. Which action is the most appropriate targeted antivirus precaution?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Removable media can carry malicious files and should be treated cautiously when its origin or integrity is uncertain.
• A Custom scan can target the USB drive specifically before the user interacts with its contents.
• Disabling protection or excluding the drive would unnecessarily reduce security.
• A Custom scan can target the USB drive specifically before the user interacts with its contents.
• Disabling protection or excluding the drive would unnecessarily reduce security.
వివరణ:
Question 16
ప్రశ్న 16
A user receives an unexpected email containing an executable attachment that claims to be an urgent security update. Which response best follows malware-prevention practice?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Malicious attachments are a common mechanism for delivering malware.
• Unexpected executable attachments should not be trusted merely because their message claims urgency or legitimacy.
• Software updates should be obtained through trusted vendor or operating-system update mechanisms after independently verifying the need for the update.
• Unexpected executable attachments should not be trusted merely because their message claims urgency or legitimacy.
• Software updates should be obtained through trusted vendor or operating-system update mechanisms after independently verifying the need for the update.
వివరణ:
Question 17
ప్రశ్న 17
What is an important purpose of cloud-delivered protection in a modern antivirus product such as Microsoft Defender Antivirus?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Cloud-delivered protection can provide rapidly updated intelligence about suspicious or newly emerging threats.
• It complements local machine-learning, heuristic, behavioral and signature-based detection mechanisms.
• The cloud service adds detection capability rather than simply disabling or replacing local antivirus protection.
• It complements local machine-learning, heuristic, behavioral and signature-based detection mechanisms.
• The cloud service adds detection capability rather than simply disabling or replacing local antivirus protection.
వివరణ:
Question 18
ప్రశ్న 18
An organization manages hundreds of employee computers. Which antivirus-management practice best supports consistent malware protection across all endpoints?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Centralized antivirus management helps an organization maintain consistent protection across many endpoints.
• Administrators can monitor whether antivirus software is operational and whether required updates have been applied.
• NIST guidance also recommends limiting users' ability to disable or alter critical antivirus protection settings in managed environments.
• Administrators can monitor whether antivirus software is operational and whether required updates have been applied.
• NIST guidance also recommends limiting users' ability to disable or alter critical antivirus protection settings in managed environments.
వివరణ:
Question 19
ప్రశ్న 19
Consider the following statements about antivirus protection:
1. Security-intelligence updates help antivirus products recognize newer threats.
2. Quarantine isolates detected suspicious or malicious items from normal execution.
3. Adding broad unnecessary antivirus exclusions generally increases protection coverage.
4. Real-time protection can inspect relevant file or process activity as it occurs.
Which statements are correct?
1. Security-intelligence updates help antivirus products recognize newer threats.
2. Quarantine isolates detected suspicious or malicious items from normal execution.
3. Adding broad unnecessary antivirus exclusions generally increases protection coverage.
4. Real-time protection can inspect relevant file or process activity as it occurs.
Which statements are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Statements 1 and 2 correctly describe the purposes of security-intelligence updates and quarantine.
• Statement 3 is false because unnecessary exclusions reduce antivirus inspection and create protection gaps.
• Statement 4 is correct because real-time protection monitors relevant activity continuously as files and processes are accessed or executed.
• Statement 3 is false because unnecessary exclusions reduce antivirus inspection and create protection gaps.
• Statement 4 is correct because real-time protection monitors relevant activity continuously as files and processes are accessed or executed.
వివరణ:
Question 20
ప్రశ్న 20
Match List I with List II:
List I
(a) Security intelligence
(b) Quarantine
(c) False positive
(d) Heuristic/behavior-based detection
List II
1. A safe item incorrectly identified as malicious
2. Detection based on suspicious characteristics or activity rather than only an exact known signature
3. Updated threat patterns and related detection information used by antivirus protection
4. Isolation of a detected item so that it cannot normally execute or affect the system
Choose the correct matching code.
List I
(a) Security intelligence
(b) Quarantine
(c) False positive
(d) Heuristic/behavior-based detection
List II
1. A safe item incorrectly identified as malicious
2. Detection based on suspicious characteristics or activity rather than only an exact known signature
3. Updated threat patterns and related detection information used by antivirus protection
4. Isolation of a detected item so that it cannot normally execute or affect the system
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Security intelligence provides updated threat-detection information, giving (a)-3.
• Quarantine isolates a detected item, giving (b)-4, while a false positive is a safe item wrongly classified as malicious, giving (c)-1.
• Heuristic and behavior-based detection evaluates suspicious characteristics or activity, giving (d)-2.
• Quarantine isolates a detected item, giving (b)-4, while a false positive is a safe item wrongly classified as malicious, giving (c)-1.
• Heuristic and behavior-based detection evaluates suspicious characteristics or activity, giving (d)-2.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. Software that monitors a computer or network to identify, prevent or contain malware infections సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: D. Malicious code that replicates by inserting or attaching copies of itself to other programs or files and becomes active when its host is executed సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: A. To continuously monitor relevant file and process activity so that threats can be detected and blocked as they are encountered సమాధానం: A.
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Question 4 ప్రశ్న 4Answer: C. They provide updated threat information, patterns or detection logic that helps the antivirus product recognize newer threats. సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: C. Comparing scanned content with known malicious patterns or signatures సమాధానం: C.
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Question 6 ప్రశ్న 6Answer: A. They can identify suspicious characteristics or behaviors even when an exact known-malware signature is unavailable. సమాధానం: A.
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Question 7 ప్రశ్న 7Answer: D. It isolates and blocks the detected item so that it cannot normally run or harm the system while awaiting removal or other action. సమాధానం: D.
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Question 8 ప్రశ్న 8Answer: B. A legitimate or harmless item that is incorrectly identified as malicious సమాధానం: B.
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Question 9 ప్రశ్న 9Answer: A. It examines important locations where malware commonly starts or persists, such as known startup locations, and is generally faster than a full scan. సమాధానం: A.
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Question 10 ప్రశ్న 10Answer: C. Custom scan సమాధానం: C.
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Question 11 ప్రశ్న 11Answer: D. A Full scan examines a substantially broader set of files and locations and can therefore take considerably longer than a Quick scan. సమాధానం: D.
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Question 12 ప్రశ్న 12Answer: B. Microsoft Defender Offline scan సమాధానం: B.
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Question 13 ప్రశ్న 13Answer: C. Exclusions create protection gaps because specified content may be skipped by antivirus scanning, so they should be used only when necessary and carefully justified. సమాధానం: C.
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Question 14 ప్రశ్న 14Answer: D. Keep the operating system, applications and antivirus protection updated while also using safe browsing and download practices. సమాధానం: D.
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Question 15 ప్రశ్న 15Answer: A. Use an up-to-date antivirus product to perform a Custom scan of the USB drive before opening its files. సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: B. Do not open the unexpected attachment; verify the message independently and obtain legitimate updates from a trusted official source. సమాధానం: B.
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Question 17 ప్రశ్న 17Answer: A. To obtain additional rapidly updated intelligence that can help identify and block new or emerging threats for which local detection information may be insufficient సమాధానం: A.
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Question 18 ప్రశ్న 18Answer: C. Use centrally managed antivirus protection to monitor endpoint status and distribute or enforce current protection updates and important security settings. సమాధానం: C.
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Question 19 ప్రశ్న 19Answer: B. 1, 2 and 4 only సమాధానం: B.
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Question 20 ప్రశ్న 20Answer: D. (a)-3, (b)-4, (c)-1, (d)-2 సమాధానం: D.