Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
A newly upgraded desktop powers on but fails to complete POST after two additional RAM modules are installed. The computer had worked correctly before the upgrade. What is the most appropriate first troubleshooting step?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The failure appeared immediately after the RAM upgrade, so memory installation or compatibility should be investigated first.
• Testing one known-good DIMM at a time can help isolate a defective module, improperly seated module or problematic slot.
• Reinstalling Windows is inappropriate because the system is failing before the operating system starts.
• Testing one known-good DIMM at a time can help isolate a defective module, improperly seated module or problematic slot.
• Reinstalling Windows is inappropriate because the system is failing before the operating system starts.
వివరణ:
Question 2
ప్రశ్న 2
A hard disk begins reporting increasing numbers of reallocated sectors and other S.M.A.R.T. warnings, although files are still accessible. What is the safest response?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• S.M.A.R.T. warnings can indicate deteriorating storage-device health and an increased risk of future failure.
• Important data should therefore be copied to reliable independent storage while the drive is still accessible.
• Defragmentation cannot repair failing physical sectors or other hardware deterioration.
• Important data should therefore be copied to reliable independent storage while the drive is still accessible.
• Defragmentation cannot repair failing physical sectors or other hardware deterioration.
వివరణ:
Question 3
ప్రశ్న 3
A PC's firmware setup detects the system SSD, but the computer always attempts to boot from an empty network interface before the SSD. Which setting should be checked first?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Firmware boot priority determines which bootable device or boot entry is attempted first.
• If network/PXE boot precedes the system SSD, the PC may attempt network startup before reaching the installed operating system.
• Adjusting the firmware boot order is therefore the appropriate first action.
• If network/PXE boot precedes the system SSD, the PC may attempt network startup before reaching the installed operating system.
• Adjusting the firmware boot order is therefore the appropriate first action.
వివరణ:
Question 4
ప్రశ్న 4
A PC powers on and completes POST, but the firmware does not detect a newly installed SATA SSD. Which hardware check is most appropriate first?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A SATA SSD normally requires both a SATA data connection to the motherboard and an appropriate power connection from the power supply.
• If firmware cannot detect the drive, cabling, power, ports and the drive itself should be checked before operating-system troubleshooting.
• Windows applications cannot affect firmware detection of a physically disconnected storage device.
• If firmware cannot detect the drive, cabling, power, ports and the drive itself should be checked before operating-system troubleshooting.
• Windows applications cannot affect firmware detection of a physically disconnected storage device.
వివరణ:
Question 5
ప్రశ్న 5
Windows system components appear corrupted. Microsoft troubleshooting guidance calls for repairing the Windows component store before running System File Checker. Which command is appropriate for the first repair step?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• DISM with /RestoreHealth can repair corruption in the Windows component store used as a source for system-file repair.
• System File Checker can subsequently scan and repair protected Windows system files.
• Formatting the system drive would destroy data and is not a normal first-line corruption-repair procedure.
• System File Checker can subsequently scan and repair protected Windows system files.
• Formatting the system drive would destroy data and is not a normal first-line corruption-repair procedure.
వివరణ:
Question 6
ప్రశ్న 6
A Windows volume is suspected of containing logical file-system errors. Which command specifically instructs CHKDSK to fix errors it detects on drive D:?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The /f parameter tells CHKDSK to fix errors on the selected volume.
• CHKDSK can examine file-system structures and repair supported logical inconsistencies when used with the appropriate repair option.
• FORMAT recreates a filesystem and is not equivalent to repairing an existing filesystem.
• CHKDSK can examine file-system structures and repair supported logical inconsistencies when used with the appropriate repair option.
• FORMAT recreates a filesystem and is not equivalent to repairing an existing filesystem.
వివరణ:
Question 7
ప్రశ్న 7
At a DOS/Windows command prompt, the current directory contains CASE1.TXT, CASE2.TXT and PHOTO.JPG. Which command copies only the .TXT files to D:BACKUP?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The wildcard pattern *.TXT matches files whose extension is TXT.
• COPY transfers the matching files to the specified destination directory.
• Using *.* would also select PHOTO.JPG, while REN and TYPE do not perform the required copy operation.
• COPY transfers the matching files to the specified destination directory.
• Using *.* would also select PHOTO.JPG, while REN and TYPE do not perform the required copy operation.
వివరణ:
Question 8
ప్రశ్న 8
At a command prompt, the current directory is C:EVIDENCEPHOTOS and the technician wants to move directly to the root directory C:. Which command is appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A single backslash identifies the root directory of the current drive.
• CD therefore changes the current directory directly to C: when C: is the current drive.
• CD .. moves only one level upward rather than directly to the root.
• CD therefore changes the current directory directly to C: when C: is the current drive.
• CD .. moves only one level upward rather than directly to the root.
వివరణ:
Question 9
ప్రశ్న 9
A DBMS transaction debits ₹5,000 from Account A and should credit ₹5,000 to Account B. The system fails after the debit but before the credit is completed. Which transaction property requires the incomplete operation to be undone rather than leaving only the debit?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Atomicity treats a transaction as an all-or-nothing unit of work.
• If the complete transfer cannot be performed, the partial effects should be rolled back.
• Leaving only the debit committed would violate the transaction's atomic behavior.
• If the complete transfer cannot be performed, the partial effects should be rolled back.
• Leaving only the debit committed would violate the transaction's atomic behavior.
వివరణ:
Question 10
ప్రశ్న 10
A database repeatedly stores DistrictName, DistrictOfficeAddress and DistrictPhone in every case record, producing large amounts of duplicated information. Which database-design approach most directly reduces this redundancy?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Relational normalization separates repeating entity information into appropriate related tables.
• A District table can store each district's details once, while Case records reference the appropriate district identifier.
• This reduces unnecessary duplication and lowers the risk of inconsistent updates.
• A District table can store each district's details once, while Case records reference the appropriate district identifier.
• This reduces unnecessary duplication and lowers the risk of inconsistent updates.
వివరణ:
Question 11
ప్రశ్న 11
A transaction has successfully executed all of its SQL statements, and the user wants its changes to become permanent. Which transaction-control command should be issued?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• COMMIT completes the current transaction and makes its successful changes durable according to the DBMS transaction mechanism.
• ROLLBACK instead cancels applicable uncommitted changes.
• SELECT retrieves data, while REVOKE is associated with removing privileges.
• ROLLBACK instead cancels applicable uncommitted changes.
• SELECT retrieves data, while REVOKE is associated with removing privileges.
వివరణ:
Question 12
ప్రశ్న 12
In Microsoft Access, a main form displays one Case record at a time and should simultaneously show all EvidenceItems related to the current CaseID. Which design is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A subform is appropriate for displaying the many-side records of a one-to-many relationship within a main form.
• Linking the main form and subform through CaseID allows the evidence records to change automatically as the current case changes.
• Storing multiple evidence records in a single text field would violate good relational design.
• Linking the main form and subform through CaseID allows the evidence records to change automatically as the current case changes.
• Storing multiple evidence records in a single text field would violate good relational design.
వివరణ:
Question 13
ప్రశ్న 13
Before running an Access Update query that will modify thousands of records, which precaution is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Action queries can modify large numbers of records at once and may be difficult to reverse after execution.
• A backup provides a recovery path if the update is incorrect.
• Testing equivalent criteria with a Select query helps verify exactly which records will be affected before executing the Update query.
• A backup provides a recovery path if the update is incorrect.
• Testing equivalent criteria with a Select query helps verify exactly which records will be affected before executing the Update query.
వివరణ:
Question 14
ప్రశ్న 14
A Word document's table of contents shows incorrect page numbers after several pages are inserted. The document uses proper heading styles. What should the user normally do?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An automatic Table of Contents is generated from document headings and pagination information.
• After content or page positions change, the table can be updated so that page numbers and headings reflect the current document.
• Recreating headings or reinstalling Word is unnecessary for ordinary pagination changes.
• After content or page positions change, the table can be updated so that page numbers and headings reflect the current document.
• Recreating headings or reinstalling Word is unnecessary for ordinary pagination changes.
వివరణ:
Question 15
ప్రశ్న 15
In Excel, cell E2 contains the formula =$B2*C$1. The formula is copied to G5. What formula will appear in G5?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Moving from E2 to G5 shifts the formula two columns right and three rows down.
• $B2 keeps column B fixed but changes relative row 2 to row 5, producing $B5.
• C$1 keeps row 1 fixed while relative column C moves two columns to E, producing E$1.
• $B2 keeps column B fixed but changes relative row 2 to row 5, producing $B5.
• C$1 keeps row 1 fixed while relative column C moves two columns to E, producing E$1.
వివరణ:
Question 16
ప్రశ్న 16
In Excel, A2:A6 contain 10, 20, 30, 40 and 50. What is returned by =COUNTIF(A2:A6,">25")?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• COUNTIF counts cells satisfying the specified criterion.
• Values greater than 25 are 30, 40 and 50.
• Therefore exactly 3 cells satisfy the condition.
• Values greater than 25 are 30, 40 and 50.
• Therefore exactly 3 cells satisfy the condition.
వివరణ:
Question 17
ప్రశ్న 17
A PowerPoint presentation displays an image correctly on the author's computer but shows a missing-picture problem on another computer because the picture was linked to an external file that was not copied. Which approach would best avoid this dependency for the image?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A linked picture depends on the continued availability of the external source file at an accessible location.
• If the linked source is missing, the presentation may not be able to display the image correctly.
• Embedding the image stores the required picture data within the presentation and removes that external-file dependency.
• If the linked source is missing, the presentation may not be able to display the image correctly.
• Embedding the image stores the required picture data within the presentation and removes that external-file dependency.
వివరణ:
Question 18
ప్రశ్న 18
A Windows PC has received the IPv4 address 169.254.25.18 automatically, and other computers normally receive addresses from a DHCP server. What does this most strongly suggest?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Windows can self-assign an address in the 169.254.0.0/16 link-local range when normal DHCP address acquisition fails.
• This behavior is commonly called Automatic Private IP Addressing (APIPA).
• The condition should prompt investigation of DHCP availability, network connectivity and related configuration.
• This behavior is commonly called Automatic Private IP Addressing (APIPA).
• The condition should prompt investigation of DHCP availability, network connectivity and related configuration.
వివరణ:
Question 19
ప్రశ్న 19
A workstation can ping its default gateway successfully but cannot ping a known reachable Internet IP address. Other computers on the same LAN can access the Internet normally. Which area should be investigated next on the affected workstation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Successful communication with the gateway confirms basic local IP connectivity to the router.
• Because other LAN systems have Internet access, the upstream Internet connection is not generally unavailable.
• Host-specific routing, firewall or IP configuration should therefore be investigated on the affected workstation.
• Because other LAN systems have Internet access, the upstream Internet connection is not generally unavailable.
• Host-specific routing, firewall or IP configuration should therefore be investigated on the affected workstation.
వివరణ:
Question 20
ప్రశ్న 20
Two computers on the same LAN have accidentally been configured with the same static IPv4 address. Which problem is most likely?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Hosts on the same IP network normally require unique IP addresses.
• Duplicate static addresses can cause address-resolution ambiguity and intermittent or failed connectivity.
• Correcting the configuration so that each host has a unique valid address resolves the addressing conflict.
• Duplicate static addresses can cause address-resolution ambiguity and intermittent or failed connectivity.
• Correcting the configuration so that each host has a unique valid address resolves the addressing conflict.
వివరణ:
Question 21
ప్రశ్న 21
A remote user can establish a VPN tunnel and reach an internal application, but the same user's account is denied access to a restricted administrative page. Which statement best explains the situation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A functioning VPN can provide network connectivity without granting unrestricted access to all internal resources.
• Authentication verifies identity, while authorization determines what that identity is permitted to access.
• Denying the administrative page can therefore be correct even though VPN establishment and ordinary application access succeed.
• Authentication verifies identity, while authorization determines what that identity is permitted to access.
• Denying the administrative page can therefore be correct even though VPN establishment and ordinary application access succeed.
వివరణ:
Question 22
ప్రశ్న 22
A firewall log shows many incoming TCP connection attempts to several unused service ports from an unknown external host. Which response is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Multiple probes of unused ports can indicate scanning or reconnaissance activity.
• A properly configured firewall should continue blocking unnecessary unsolicited inbound services.
• Logs should be reviewed for context and escalation according to organizational security procedures rather than weakening the firewall.
• A properly configured firewall should continue blocking unnecessary unsolicited inbound services.
• Logs should be reviewed for context and escalation according to organizational security procedures rather than weakening the firewall.
వివరణ:
Question 23
ప్రశ్న 23
An antivirus scan detects a suspicious executable and moves it to quarantine. What is the main purpose of the quarantine action?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Quarantine isolates a detected or suspected malicious item from ordinary execution and use.
• The security product can subsequently remove it or, after appropriate verification, restore it if it was incorrectly detected.
• Quarantine is intended to contain risk rather than grant the file additional privileges.
• The security product can subsequently remove it or, after appropriate verification, restore it if it was incorrectly detected.
• Quarantine is intended to contain risk rather than grant the file additional privileges.
వివరణ:
Question 24
ప్రశ్న 24
A department stores confidential database backups on an external drive. Which combination provides the strongest practical protection against both drive failure and unauthorized disclosure?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Independent backup copies protect against failure or loss of a single storage device.
• Encryption protects confidentiality if a backup medium is stolen or accessed without authorization.
• Cryptographic keys must also be protected appropriately because storing an exposed decryption key with the encrypted backup can defeat confidentiality.
• Encryption protects confidentiality if a backup medium is stolen or accessed without authorization.
• Cryptographic keys must also be protected appropriately because storing an exposed decryption key with the encrypted backup can defeat confidentiality.
వివరణ:
Question 25
ప్రశ్న 25
Match List I with List II:
List I
(a) POST failure after RAM upgrade
(b) 169.254.x.x address
(c) Quarantined malware
(d) VPN connected but restricted page denied
List II
1. Investigate memory seating or compatibility
2. Likely DHCP address-assignment failure resulting in link-local addressing
3. Threat has been isolated from normal execution
4. Connectivity may work while authorization still restricts access
Choose the correct matching code.
List I
(a) POST failure after RAM upgrade
(b) 169.254.x.x address
(c) Quarantined malware
(d) VPN connected but restricted page denied
List II
1. Investigate memory seating or compatibility
2. Likely DHCP address-assignment failure resulting in link-local addressing
3. Threat has been isolated from normal execution
4. Connectivity may work while authorization still restricts access
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A RAM-related POST failure points to memory installation or compatibility, giving (a)-1.
• A self-assigned 169.254.x.x address commonly indicates failure to obtain an IPv4 address from DHCP, giving (b)-2.
• Quarantine isolates a detected threat, giving (c)-3, while successful VPN connectivity does not override authorization restrictions, giving (d)-4.
• A self-assigned 169.254.x.x address commonly indicates failure to obtain an IPv4 address from DHCP, giving (b)-2.
• Quarantine isolates a detected threat, giving (c)-3, while successful VPN connectivity does not override authorization restrictions, giving (d)-4.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. Power off the system, reseat the RAM modules, and test with one known-good compatible module at a time. సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: D. Back up important data promptly and plan to replace the suspect drive. సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: A. UEFI/BIOS boot priority or boot order సమాధానం: A.
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Question 4 ప్రశ్న 4Answer: C. Verify the SSD's SATA data connection and power connection, and try a known-good port or cable if necessary. సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: D. DISM /Online /Cleanup-Image /RestoreHealth సమాధానం: D.
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Question 6 ప్రశ్న 6Answer: B. chkdsk D: /f సమాధానం: B.
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Question 7 ప్రశ్న 7Answer: A. COPY *.TXT D:BACKUP సమాధానం: A.
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Question 8 ప్రశ్న 8Answer: C. CD సమాధానం: C.
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Question 9 ప్రశ్న 9Answer: D. Atomicity సమాధానం: D.
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Question 10 ప్రశ్న 10Answer: A. Place district details in a separate District table and reference it from case records through an appropriate key. సమాధానం: A.
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Question 11 ప్రశ్న 11Answer: B. COMMIT సమాధానం: B.
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Question 12 ప్రశ్న 12Answer: C. Use a subform linked to the main form by CaseID. సమాధానం: C.
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Question 13 ప్రశ్న 13Answer: D. Back up the database and first verify with a Select query which records satisfy the intended criteria. సమాధానం: D.
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Question 14 ప్రశ్న 14Answer: B. Update the existing Table of Contents. సమాధానం: B.
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Question 15 ప్రశ్న 15Answer: A. =$B5*E$1 సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: C. 3 సమాధానం: C.
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Question 17 ప్రశ్న 17Answer: D. Embed the picture in the presentation instead of relying on an unavailable external linked file. సమాధానం: D.
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Question 18 ప్రశ్న 18Answer: A. The computer could not obtain a normal IPv4 lease from the DHCP service and assigned itself an APIPA address. సమాధానం: A.
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Question 19 ప్రశ్న 19Answer: B. Its IP routing, firewall configuration and other host-specific network settings beyond basic local-link connectivity సమాధానం: B.
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Question 20 ప్రశ్న 20Answer: C. An IP-address conflict can cause unreliable or failed communication for one or both hosts. సమాధానం: C.
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Question 21 ప్రశ్న 21Answer: D. Network connectivity and authentication may have succeeded, while authorization correctly denies a resource for which the user lacks permission. సమాధానం: D.
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Question 22 ప్రశ్న 22Answer: A. Review the logs and ensure unnecessary inbound ports remain blocked under the firewall policy. సమాధానం: A.
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Question 23 ప్రశ్న 23Answer: B. To isolate and block the detected item from normal execution while allowing later removal or review. సమాధానం: B.
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Question 24 ప్రశ్న 24Answer: C. Maintain independent backup copies and protect sensitive backup data with appropriate encryption and key management. సమాధానం: C.
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Question 25 ప్రశ్న 25Answer: D. (a)-1, (b)-2, (c)-3, (d)-4 సమాధానం: D.