QID #26118
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains DNS?
A
Hypertext Transfer Protocol used for web communication
B
Malicious software designed to damage, disrupt or gain unauthorized access
C
Malware that encrypts or blocks access to data and demands payment
D
Domain Name System translating domain names into IP addresses
Correct Answer: D. Domain Name System translating domain names into IP addresses
Question: Which statement best explains DNS?
A. Hypertext Transfer Protocol used for web communication
B. Malicious software designed to damage, disrupt or gain unauthorized access
C. Malware that encrypts or blocks access to data and demands payment
D. Domain Name System translating domain names into IP addresses
Correct Answer: D. Domain Name System translating domain names into IP addresses
Explanation: DNS: Domain Name System translating domain names into IP addresses
QID #26117
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Domain Name System translating domain names into IP addresses
A
Firewall
B
HTTP
C
DNS
D
Cloud computing
Correct Answer: C. DNS
Question: Which of the following is best described as: Domain Name System translating domain names into IP addresses
A. Firewall
B. HTTP
C. DNS
D. Cloud computing
Correct Answer: C. DNS
Explanation: The correct answer is DNS. Domain Name System translating domain names into IP addresses
QID #26116
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains IP address?
A
HTTP secured using encryption through TLS
B
System software managing hardware resources and providing services to applications
C
Numerical identifier used by devices on an IP network
D
Uniform Resource Locator identifying the address of a web resource
Correct Answer: C. Numerical identifier used by devices on an IP network
Question: Which statement best explains IP address?
A. HTTP secured using encryption through TLS
B. System software managing hardware resources and providing services to applications
C. Numerical identifier used by devices on an IP network
D. Uniform Resource Locator identifying the address of a web resource
Correct Answer: C. Numerical identifier used by devices on an IP network
Explanation: IP address: Numerical identifier used by devices on an IP network
QID #26115
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Numerical identifier used by devices on an IP network
A
IP address
B
Operating system
C
Two-factor authentication
D
URL
Correct Answer: A. IP address
Question: Which of the following is best described as: Numerical identifier used by devices on an IP network
A. IP address
B. Operating system
C. Two-factor authentication
D. URL
Correct Answer: A. IP address
Explanation: The correct answer is IP address. Numerical identifier used by devices on an IP network
QID #26114
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains HTTPS?
A
Malicious software designed to damage, disrupt or gain unauthorized access
B
HTTP secured using encryption through TLS
C
Volatile primary memory used for active programs and data
D
Hypertext Transfer Protocol used for web communication
Correct Answer: B. HTTP secured using encryption through TLS
Question: Which statement best explains HTTPS?
A. Malicious software designed to damage, disrupt or gain unauthorized access
B. HTTP secured using encryption through TLS
C. Volatile primary memory used for active programs and data
D. Hypertext Transfer Protocol used for web communication
Correct Answer: B. HTTP secured using encryption through TLS
Explanation: HTTPS: HTTP secured using encryption through TLS
QID #26113
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: HTTP secured using encryption through TLS
A
Malware
B
HTTP
C
HTTPS
D
Browser
Correct Answer: C. HTTPS
Question: Which of the following is best described as: HTTP secured using encryption through TLS
A. Malware
B. HTTP
C. HTTPS
D. Browser
Correct Answer: C. HTTPS
Explanation: The correct answer is HTTPS. HTTP secured using encryption through TLS
QID #26112
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains HTTP?
A
Non-volatile memory typically storing permanent or semi-permanent instructions
B
Application organized in cells for calculation, analysis and tabular data
C
Application used to access and navigate web resources
D
Hypertext Transfer Protocol used for web communication
Correct Answer: D. Hypertext Transfer Protocol used for web communication
Question: Which statement best explains HTTP?
A. Non-volatile memory typically storing permanent or semi-permanent instructions
B. Application organized in cells for calculation, analysis and tabular data
C. Application used to access and navigate web resources
D. Hypertext Transfer Protocol used for web communication
Correct Answer: D. Hypertext Transfer Protocol used for web communication
Explanation: HTTP: Hypertext Transfer Protocol used for web communication
QID #26111
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Hypertext Transfer Protocol used for web communication
A
ROM
B
Ransomware
C
HTTP
D
HTTPS
Correct Answer: C. HTTP
Question: Which of the following is best described as: Hypertext Transfer Protocol used for web communication
A. ROM
B. Ransomware
C. HTTP
D. HTTPS
Correct Answer: C. HTTP
Explanation: The correct answer is HTTP. Hypertext Transfer Protocol used for web communication
QID #26110
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains URL?
A
Central processing unit that executes instructions
B
Separate copy of data maintained for recovery
C
Uniform Resource Locator identifying the address of a web resource
D
Volatile primary memory used for active programs and data
Correct Answer: C. Uniform Resource Locator identifying the address of a web resource
Question: Which statement best explains URL?
A. Central processing unit that executes instructions
B. Separate copy of data maintained for recovery
C. Uniform Resource Locator identifying the address of a web resource
D. Volatile primary memory used for active programs and data
Correct Answer: C. Uniform Resource Locator identifying the address of a web resource
Explanation: URL: Uniform Resource Locator identifying the address of a web resource
QID #26109
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Uniform Resource Locator identifying the address of a web resource
A
URL
B
HTTPS
C
Encryption
D
Phishing
Correct Answer: A. URL
Question: Which of the following is best described as: Uniform Resource Locator identifying the address of a web resource
A. URL
B. HTTPS
C. Encryption
D. Phishing
Correct Answer: A. URL
Explanation: The correct answer is URL. Uniform Resource Locator identifying the address of a web resource
QID #26108
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains Browser?
A
Separate copy of data maintained for recovery
B
Application used to access and navigate web resources
C
Uniform Resource Locator identifying the address of a web resource
D
Domain Name System translating domain names into IP addresses
Correct Answer: B. Application used to access and navigate web resources
Question: Which statement best explains Browser?
A. Separate copy of data maintained for recovery
B. Application used to access and navigate web resources
C. Uniform Resource Locator identifying the address of a web resource
D. Domain Name System translating domain names into IP addresses
Correct Answer: B. Application used to access and navigate web resources
Explanation: Browser: Application used to access and navigate web resources
QID #26107
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Application used to access and navigate web resources
A
Browser
B
ROM
C
Spreadsheet
D
HTTP
Correct Answer: A. Browser
Question: Which of the following is best described as: Application used to access and navigate web resources
A. Browser
B. ROM
C. Spreadsheet
D. HTTP
Correct Answer: A. Browser
Explanation: The correct answer is Browser. Application used to access and navigate web resources
QID #26106
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains Operating system?
A
Fraudulent attempt to obtain sensitive information by impersonating a trusted source
B
System software managing hardware resources and providing services to applications
C
Non-volatile memory typically storing permanent or semi-permanent instructions
D
Central processing unit that executes instructions
Correct Answer: B. System software managing hardware resources and providing services to applications
Question: Which statement best explains Operating system?
A. Fraudulent attempt to obtain sensitive information by impersonating a trusted source
B. System software managing hardware resources and providing services to applications
C. Non-volatile memory typically storing permanent or semi-permanent instructions
D. Central processing unit that executes instructions
Correct Answer: B. System software managing hardware resources and providing services to applications
Explanation: Operating system: System software managing hardware resources and providing services to applications
QID #26105
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: System software managing hardware resources and providing services to applications
A
Cloud computing
B
CPU
C
URL
D
Operating system
Correct Answer: D. Operating system
Question: Which of the following is best described as: System software managing hardware resources and providing services to applications
A. Cloud computing
B. CPU
C. URL
D. Operating system
Correct Answer: D. Operating system
Explanation: The correct answer is Operating system. System software managing hardware resources and providing services to applications
QID #26104
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains ROM?
A
Non-volatile memory typically storing permanent or semi-permanent instructions
B
System software managing hardware resources and providing services to applications
C
Security mechanism controlling network traffic according to rules
D
Central processing unit that executes instructions
Correct Answer: A. Non-volatile memory typically storing permanent or semi-permanent instructions
Question: Which statement best explains ROM?
A. Non-volatile memory typically storing permanent or semi-permanent instructions
B. System software managing hardware resources and providing services to applications
C. Security mechanism controlling network traffic according to rules
D. Central processing unit that executes instructions
Correct Answer: A. Non-volatile memory typically storing permanent or semi-permanent instructions
Explanation: ROM: Non-volatile memory typically storing permanent or semi-permanent instructions
QID #26103
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Non-volatile memory typically storing permanent or semi-permanent instructions
A
Backup
B
ROM
C
HTTP
D
Firewall
Correct Answer: B. ROM
Question: Which of the following is best described as: Non-volatile memory typically storing permanent or semi-permanent instructions
A. Backup
B. ROM
C. HTTP
D. Firewall
Correct Answer: B. ROM
Explanation: The correct answer is ROM. Non-volatile memory typically storing permanent or semi-permanent instructions
QID #26102
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains RAM?
A
Numerical identifier used by devices on an IP network
B
Volatile primary memory used for active programs and data
C
Delivery of computing resources over a network on demand
D
Application organized in cells for calculation, analysis and tabular data
Correct Answer: B. Volatile primary memory used for active programs and data
Question: Which statement best explains RAM?
A. Numerical identifier used by devices on an IP network
B. Volatile primary memory used for active programs and data
C. Delivery of computing resources over a network on demand
D. Application organized in cells for calculation, analysis and tabular data
Correct Answer: B. Volatile primary memory used for active programs and data
Explanation: RAM: Volatile primary memory used for active programs and data
QID #26101
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Volatile primary memory used for active programs and data
A
Phishing
B
Spreadsheet
C
RAM
D
Malware
Correct Answer: C. RAM
Question: Which of the following is best described as: Volatile primary memory used for active programs and data
A. Phishing
B. Spreadsheet
C. RAM
D. Malware
Correct Answer: C. RAM
Explanation: The correct answer is RAM. Volatile primary memory used for active programs and data
QID #26100
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which statement best explains CPU?
A
Domain Name System translating domain names into IP addresses
B
Fraudulent attempt to obtain sensitive information by impersonating a trusted source
C
Central processing unit that executes instructions
D
Numerical identifier used by devices on an IP network
Correct Answer: C. Central processing unit that executes instructions
Question: Which statement best explains CPU?
A. Domain Name System translating domain names into IP addresses
B. Fraudulent attempt to obtain sensitive information by impersonating a trusted source
C. Central processing unit that executes instructions
D. Numerical identifier used by devices on an IP network
Correct Answer: C. Central processing unit that executes instructions
Explanation: CPU: Central processing unit that executes instructions
QID #26099
UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC Computer Applications Sectional Test 2026 Medium
Which of the following is best described as: Central processing unit that executes instructions
A
URL
B
Encryption
C
Database
D
CPU
Correct Answer: D. CPU
Question: Which of the following is best described as: Central processing unit that executes instructions
A. URL
B. Encryption
C. Database
D. CPU
Correct Answer: D. CPU
Explanation: The correct answer is CPU. Central processing unit that executes instructions
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