Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 80
Q1161:
Which protocol in the TCP/IP model is used for web browsing?
A. FTP
B. SMTP
C. HTTP
D. UDP
Correct Answer:
C
Chapter: 80
Q1162:
How does TCP ensure reliable data transmission?
A. By encrypting data
B. By establishing a connection before data transfer
C. By using IP addresses for routing
D. By using port numbers
Correct Answer:
B
Chapter: 80
Q1163:
Which layer of the TCP/IP model handles the conversion of logical addresses to physical addresses?
A. Internet Layer
B. Network Interface Layer
C. Transport Layer
D. Application Layer
Correct Answer:
B
Chapter: 80
Q1164:
What is the role of the Application Layer in the TCP/IP model?
A. Routing data packets
B. Providing network services to applications
C. Data encryption and compression
D. Managing end-to-end communication
Correct Answer:
B
Chapter: 80
Q1165:
In the TCP/IP protocol suite, which layer corresponds to the OSI model's Network Layer?
A. Application Layer
B. Transport Layer
C. Internet Layer
D. Network Interface Layer
Correct Answer:
C
Chapter: 80
Q1166:
What protocol is used in the TCP/IP model to resolve IP addresses to MAC addresses?
A. HTTP
B. FTP
C. ARP
D. ICMP
Correct Answer:
C
Chapter: 80
Q1167:
How does the TCP protocol handle lost packets during transmission?
A. It does not handle them
B. It sends a request for retransmission
C. It ignores them
D. It uses IP to recover them
Correct Answer:
B
Chapter: 81
Q1168:
What is a common form of attack where unauthorized access is gained to a computer system?
A. Phishing
B. Hacking
C. Social engineering
D. DDoS attack
Correct Answer:
B
Chapter: 81
Q1169:
Which type of attack involves overwhelming a system with traffic to make it unavailable?
A. Phishing
B. Ransomware
C. DDoS
D. Spyware
Correct Answer:
C
Chapter: 81
Q1170:
What does "phishing" typically aim to do?
A. Steal confidential information
B. Disable networks
C. Encrypt data
D. Overload a server
Correct Answer:
A
Chapter: 81
Q1171:
Which attack involves the use of malicious software to encrypt a user's data until a ransom is paid?
A. DDoS attack
B. Phishing
C. Spyware
D. Ransomware
Correct Answer:
D
Chapter: 81
Q1172:
What is the primary goal of a "man-in-the-middle" attack?
A. Eavesdropping on communication
B. Encrypting data
C. Stealing passwords
D. Flooding a network
Correct Answer:
A
Chapter: 81
Q1173:
Which of the following is an example of social engineering?
A. Buffer overflow
B. SQL injection
C. Phishing
D. Firewall configuration
Correct Answer:
C
Chapter: 81
Q1174:
What type of malware records everything a user types?
A. Virus
B. Trojan
C. Keylogger
D. Worm
Correct Answer:
C
Chapter: 81
Q1175:
Which attack involves inserting malicious code into a web application's database?
A. Cross-site scripting
B. SQL injection
C. Phishing
D. Man-in-the-middle
Correct Answer:
B
Chapter: 81
Q1176:
In a "denial of service" (DoS) attack, what is the main target?
A. Data integrity
B. System availability
C. Network speed
D. User credentials
Correct Answer:
B
Chapter: 81
Q1177:
What form of attack exploits a vulnerability in a network protocol?
A. SQL injection
B. Man-in-the-middle
C. Protocol exploit
D. Phishing
Correct Answer:
C
Chapter: 81
Q1178:
Which of the following attacks relies on tricking users into revealing confidential information?
A. Ransomware
B. Social engineering
C. Keylogger
D. DoS attack
Correct Answer:
B
Chapter: 81
Q1179:
What type of malware spreads by replicating itself and usually does not need human interaction?
A. Spyware
B. Worm
C. Trojan
D. Adware
Correct Answer:
B
Chapter: 82
Q1180:
What is the primary purpose of a firewall in network security?
A. Encrypting data
B. Preventing unauthorized access
C. Monitoring network traffic
D. Blocking malware
Correct Answer:
B