Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
Which Device–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A UPS can provide temporary battery-backed power when the normal electrical supply fails.
• This gives a computer time to save work or perform an orderly shutdown.
• A scanner is an input device, a plotter is an output device, and a modem performs communication-related signal/interface functions.
• This gives a computer time to save work or perform an orderly shutdown.
• A scanner is an input device, a plotter is an output device, and a modem performs communication-related signal/interface functions.
వివరణ:
Question 2
ప్రశ్న 2
Which Memory–Characteristic pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• EEPROM stands for Electrically Erasable Programmable Read-Only Memory.
• Its contents can be erased and rewritten electrically without the ultraviolet-light erasure associated with traditional EPROM.
• Ordinary SRAM and DRAM are volatile, and SRAM does not require DRAM-style periodic refresh.
• Its contents can be erased and rewritten electrically without the ultraviolet-light erasure associated with traditional EPROM.
• Ordinary SRAM and DRAM are volatile, and SRAM does not require DRAM-style periodic refresh.
వివరణ:
Question 3
ప్రశ్న 3
Which RAID–Property pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• RAID 10 combines mirrored drive sets with striping across those mirrored sets.
• A conventional implementation requires at least four drives.
• RAID 0 has no redundancy, RAID 1 uses mirroring, RAID 5 uses single distributed parity, and RAID 6 uses dual parity.
• A conventional implementation requires at least four drives.
• RAID 0 has no redundancy, RAID 1 uses mirroring, RAID 5 uses single distributed parity, and RAID 6 uses dual parity.
వివరణ:
Question 4
ప్రశ్న 4
Which Command–Purpose pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• CHKDSK examines a volume's filesystem and related metadata for problems.
• The /F parameter instructs CHKDSK to fix errors it detects on the specified volume.
• FORMAT creates a filesystem, ATTRIB manages file attributes, and IPCONFIG displays or manages TCP/IP configuration.
• The /F parameter instructs CHKDSK to fix errors it detects on the specified volume.
• FORMAT creates a filesystem, ATTRIB manages file attributes, and IPCONFIG displays or manages TCP/IP configuration.
వివరణ:
Question 5
ప్రశ్న 5
Which Windows Tool–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• System Information provides a detailed summary of system hardware, resources, components and software-environment information.
• It is commonly opened using msinfo32.
• Device Manager handles hardware devices, Event Viewer displays recorded events, and Disk Management manages disks and volumes.
• It is commonly opened using msinfo32.
• Device Manager handles hardware devices, Event Viewer displays recorded events, and Disk Management manages disks and volumes.
వివరణ:
Question 6
ప్రశ్న 6
Which DBMS Term–Meaning pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A database schema describes the logical organization or structure of a database.
• It can define objects such as tables, fields, relationships, constraints and other structural elements.
• A tuple is a row, an index assists data access, and a foreign key represents a relationship to referenced data.
• It can define objects such as tables, fields, relationships, constraints and other structural elements.
• A tuple is a row, an index assists data access, and a foreign key represents a relationship to referenced data.
వివరణ:
Question 7
ప్రశ్న 7
Which Office Feature–Application pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• PowerPoint's Reuse Slides feature allows slides from another presentation to be inserted into the current presentation.
• Goal Seek is an Excel feature, while Mail Merge is primarily a Word feature.
• Slide Master is a PowerPoint feature rather than an Access database object.
• Goal Seek is an Excel feature, while Mail Merge is primarily a Word feature.
• Slide Master is a PowerPoint feature rather than an Access database object.
వివరణ:
Question 8
ప్రశ్న 8
Which topology is identified by the following characteristic: each endpoint normally has an individual link to a central device, so failure of one endpoint cable usually affects only that endpoint, but failure of the central device can disrupt the entire network segment?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• In a star topology, endpoints connect individually to a central device such as an Ethernet switch.
• Failure of one endpoint link normally isolates only that endpoint.
• The central device represents a major common dependency because its failure can interrupt communication for all connected endpoints.
• Failure of one endpoint link normally isolates only that endpoint.
• The central device represents a major common dependency because its failure can interrupt communication for all connected endpoints.
వివరణ:
Question 9
ప్రశ్న 9
Which Security Mechanism–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A digital signature can provide assurance that signed data has not been altered and can authenticate the signer when the associated key and certificate context is trusted.
• Encryption primarily protects confidentiality, while cryptographic hashing is designed as a one-way transformation.
• A firewall controls network traffic but does not guarantee malware removal.
• Encryption primarily protects confidentiality, while cryptographic hashing is designed as a one-way transformation.
• A firewall controls network traffic but does not guarantee malware removal.
వివరణ:
Question 10
ప్రశ్న 10
Identify the hardware component whose primary function is to convert incoming electrical power into regulated DC voltages required by a desktop computer's motherboard, storage devices and other internal components.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• SMPS stands for Switched-Mode Power Supply.
• It converts the available input electrical power into regulated DC outputs required by internal PC components.
• NICs provide network connectivity, cache stores high-speed processor data, and scanners capture input from physical documents.
• It converts the available input electrical power into regulated DC outputs required by internal PC components.
• NICs provide network connectivity, cache stores high-speed processor data, and scanners capture input from physical documents.
వివరణ:
Question 11
ప్రశ్న 11
Which Memory–Characteristic pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• CPU registers are very small, very fast storage locations directly used by processor instructions.
• They hold operands, addresses, instructions or intermediate results depending on the register type and architecture.
• SSDs are secondary storage, ROM is non-volatile, and ordinary DRAM is volatile main memory.
• They hold operands, addresses, instructions or intermediate results depending on the register type and architecture.
• SSDs are secondary storage, ROM is non-volatile, and ordinary DRAM is volatile main memory.
వివరణ:
Question 12
ప్రశ్న 12
Which RAID–Property pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Conventional RAID 5 requires at least three drives.
• It stripes data and distributes parity information across the participating drives.
• RAID 0 has no parity, RAID 1 uses mirroring, and RAID 6 normally requires at least four drives because it uses dual parity.
• It stripes data and distributes parity information across the participating drives.
• RAID 0 has no parity, RAID 1 uses mirroring, and RAID 6 normally requires at least four drives because it uses dual parity.
వివరణ:
Question 13
ప్రశ్న 13
Which Command–Purpose pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• VER displays the operating-system version information available through the command interpreter.
• CLS clears the command-prompt screen, while MD creates a directory.
• TREE displays directory structure rather than setting the system date.
• CLS clears the command-prompt screen, while MD creates a directory.
• TREE displays directory structure rather than setting the system date.
వివరణ:
Question 14
ప్రశ్న 14
Which Windows Tool–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Performance Monitor provides performance counters and monitoring facilities for Windows system resources and applications.
• It is useful for examining performance behavior over time and diagnosing resource-related problems.
• The other listed tools do not perform the mismatched functions assigned to them.
• It is useful for examining performance behavior over time and diagnosing resource-related problems.
• The other listed tools do not perform the mismatched functions assigned to them.
వివరణ:
Question 15
ప్రశ్న 15
In relational-table terminology, which DBMS Term–Meaning pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• In relational terminology, the cardinality of a relation is the number of tuples or rows it contains.
• The degree of a relation refers to the number of attributes or columns.
• A domain defines the permitted set or type of values for an attribute.
• The degree of a relation refers to the number of attributes or columns.
• A domain defines the permitted set or type of values for an attribute.
వివరణ:
Question 16
ప్రశ్న 16
Which Office Feature–Application pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• PivotTables are an Excel feature used to summarize, group and analyze structured worksheet data.
• Fields can be rearranged interactively to view aggregates from different perspectives.
• Presenter View belongs to PowerPoint, while referential integrity is a relational database concept supported by Access.
• Fields can be rearranged interactively to view aggregates from different perspectives.
• Presenter View belongs to PowerPoint, while referential integrity is a relational database concept supported by Access.
వివరణ:
Question 17
ప్రశ్న 17
Which Topology–Characteristic pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• In the classic bus topology, devices share a common backbone transmission path.
• Full mesh instead provides direct interconnections between every pair of nodes.
• Star topology uses a central device, while ring topology forms a closed logical or physical loop.
• Full mesh instead provides direct interconnections between every pair of nodes.
• Star topology uses a central device, while ring topology forms a closed logical or physical loop.
వివరణ:
Question 18
ప్రశ్న 18
Which Security Mechanism–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A cryptographic hash function maps input data to a fixed-size digest for the chosen hash algorithm.
• Hash comparison can help detect whether data has been modified.
• Hashing is designed as a one-way operation rather than reversible confidentiality encryption.
• Hash comparison can help detect whether data has been modified.
• Hashing is designed as a one-way operation rather than reversible confidentiality encryption.
వివరణ:
Question 19
ప్రశ్న 19
Which Device–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• MICR stands for Magnetic Ink Character Recognition.
• It detects specially designed characters printed using magnetically detectable ink or toner and has traditionally been used on banking documents such as cheques.
• OCR recognizes printed characters, while OMR detects marked positions.
• It detects specially designed characters printed using magnetically detectable ink or toner and has traditionally been used on banking documents such as cheques.
• OCR recognizes printed characters, while OMR detects marked positions.
వివరణ:
Question 20
ప్రశ్న 20
Which Memory–Characteristic pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Traditional EPROM devices can be erased by exposure to ultraviolet light and then reprogrammed.
• PROM is normally programmable once, whereas EEPROM can be erased electrically.
• SRAM is fast volatile memory commonly associated with processor caches.
• PROM is normally programmable once, whereas EEPROM can be erased electrically.
• SRAM is fast volatile memory commonly associated with processor caches.
వివరణ:
Question 21
ప్రశ్న 21
A four-drive RAID 10 array consists of mirrored pairs A1/A2 and B1/B2, with data striped across the two mirror pairs. Which two-drive failure can the array tolerate while preserving all data?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• RAID 10 can survive multiple drive failures when each affected mirror pair still retains at least one working member.
• If A1 and B1 fail, A2 still contains the A-pair data and B2 still contains the B-pair data.
• Losing both members of the same mirror pair, such as A1/A2 or B1/B2, loses part of the striped data set.
• If A1 and B1 fail, A2 still contains the A-pair data and B2 still contains the B-pair data.
• Losing both members of the same mirror pair, such as A1/A2 or B1/B2, loses part of the striped data set.
వివరణ:
Question 22
ప్రశ్న 22
Which DOS/Windows Command–Purpose pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• DIR /W uses the wide-format directory listing.
• DIR /P pauses after each screenful, while DIR /S includes matching files from subdirectories.
• DIR /A:H selects entries with the Hidden attribute for display; it does not clear that attribute.
• DIR /P pauses after each screenful, while DIR /S includes matching files from subdirectories.
• DIR /A:H selects entries with the Hidden attribute for display; it does not clear that attribute.
వివరణ:
Question 23
ప్రశ్న 23
Which Windows Utility–Function pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• System File Checker scans protected Windows system files for integrity problems.
• With /scannow, it attempts to repair corrupted protected system files using appropriate Windows repair sources.
• Task Manager, Disk Management and Event Viewer provide different administrative functions.
• With /scannow, it attempts to repair corrupted protected system files using appropriate Windows repair sources.
• Task Manager, Disk Management and Event Viewer provide different administrative functions.
వివరణ:
Question 24
ప్రశ్న 24
Which Office Feature–Application pair is correctly matched?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Excel Data Validation controls what users are permitted to enter in selected cells.
• It can enforce numeric limits, date restrictions or predefined List values used in drop-down selections.
• Slide transitions belong to PowerPoint, while RAID is a storage technology rather than an Office feature.
• It can enforce numeric limits, date restrictions or predefined List values used in drop-down selections.
• Slide transitions belong to PowerPoint, while RAID is a storage technology rather than an Office feature.
వివరణ:
Question 25
ప్రశ్న 25
Match List I with List II:
List I
(a) Packet filter
(b) Application-proxy gateway
(c) Antivirus
(d) Cryptographic hash function
List II
1. Applies rules using packet information such as addresses, protocols and ports
2. Acts as an application-aware intermediary between communicating endpoints
3. Detects or helps prevent malicious software
4. Produces a one-way digest useful for integrity checking
Choose the correct matching code.
List I
(a) Packet filter
(b) Application-proxy gateway
(c) Antivirus
(d) Cryptographic hash function
List II
1. Applies rules using packet information such as addresses, protocols and ports
2. Acts as an application-aware intermediary between communicating endpoints
3. Detects or helps prevent malicious software
4. Produces a one-way digest useful for integrity checking
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A packet filter evaluates network-header information according to rules, giving (a)-1.
• An application-proxy gateway acts as an application-aware intermediary, giving (b)-2, while antivirus handles malware detection or prevention, giving (c)-3.
• A cryptographic hash function produces a digest for integrity-related uses, giving (d)-4.
• An application-proxy gateway acts as an application-aware intermediary, giving (b)-2, while antivirus handles malware detection or prevention, giving (c)-3.
• A cryptographic hash function produces a digest for integrity-related uses, giving (d)-4.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. UPS — provides temporary backup electrical power when the normal supply fails సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: D. EEPROM — can be electrically erased and reprogrammed సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: A. RAID 10 — combines mirroring and striping and normally requires at least four drives సమాధానం: A.
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Question 4 ప్రశ్న 4Answer: C. CHKDSK D: /F — checks drive D: and instructs CHKDSK to fix detected file-system errors సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: A. System Information (msinfo32) — displays information about hardware resources, components and the software environment సమాధానం: A.
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Question 6 ప్రశ్న 6Answer: C. Schema — logical definition or organization of the database structure సమాధానం: C.
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Question 7 ప్రశ్న 7Answer: D. Microsoft PowerPoint — Reuse Slides for inserting selected slides from another presentation సమాధానం: D.
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Question 8 ప్రశ్న 8Answer: B. Star topology సమాధానం: B.
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Question 9 ప్రశ్న 9Answer: C. Digital signature — helps provide integrity and authentication of the signed data సమాధానం: C.
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Question 10 ప్రశ్న 10Answer: A. SMPS సమాధానం: A.
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Question 11 ప్రశ్న 11Answer: B. CPU register — very high-speed storage located within the processor and used during instruction execution సమాధానం: B.
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Question 12 ప్రశ్న 12Answer: D. RAID 5 — normally requires at least three drives and uses distributed parity సమాధానం: D.
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Question 13 ప్రశ్న 13Answer: D. VER — displays the operating-system version information at the command prompt సమాధానం: D.
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Question 14 ప్రశ్న 14Answer: B. Performance Monitor (perfmon) — monitors and analyzes system performance using counters and collected performance data సమాధానం: B.
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Question 15 ప్రశ్న 15Answer: A. Cardinality — number of rows or tuples in a relation సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: C. Excel — PivotTable for interactively summarizing and analyzing tabular data సమాధానం: C.
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Question 17 ప్రశ్న 17Answer: A. Bus topology — nodes share a common backbone transmission medium in the classic physical bus arrangement సమాధానం: A.
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Question 18 ప్రశ్న 18Answer: D. Cryptographic hash function — produces a digest useful for detecting changes to data and is not designed as reversible encryption సమాధానం: D.
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Question 19 ప్రశ్న 19Answer: C. MICR — reads characters printed using magnetic ink, traditionally used in banking documents సమాధానం: C.
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Question 20 ప్రశ్న 20Answer: B. EPROM — can be erased using ultraviolet light and then reprogrammed సమాధానం: B.
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Question 21 ప్రశ్న 21Answer: C. A1 and B1 fail సమాధానం: C.
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Question 22 ప్రశ్న 22Answer: C. DIR /W — displays directory contents using a wide listing format సమాధానం: C.
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Question 23 ప్రశ్న 23Answer: A. System File Checker (sfc /scannow) — scans protected Windows system files and attempts to repair corrupted versions సమాధానం: A.
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Question 24 ప్రశ్న 24Answer: D. Microsoft Excel — Data Validation for restricting permitted cell values or creating controlled input lists సమాధానం: D.
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Question 25 ప్రశ్న 25Answer: A. (a)-1, (b)-2, (c)-3, (d)-4 సమాధానం: A.