21. Which method is used to send an email using the SmtpClient class in C#? A. Connect() B. Read() C. Write() D. Send() Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
22. What is the role of a hostname in networking? A. It is a human-readable label assigned to a device B. It identifies a specific endpoint on a host C. It encrypts data transmission between devices D. It defines the rules for communication between devices Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
23. Which method is used to receive data from a network stream in C#? A. Close() B. Open() C. Write() D. Read() Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
24. What is the purpose of the System.Net.HttpWebRequest class in C#? A. To establish a TCP connection B. To create a UDP client C. To send HTTP requests D. To handle DNS resolution Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
25. Which protocol is commonly used for transferring files over a network? A. SMTP B. FTP C. SNMP D. SHMTP Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
26. What is the purpose of the System.Net.NetworkCredential class in C#? A. To handle DNS resolution B. To create a UDP client C. To provide credentials for network authentication D. To establish a TCP connection Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
27. Which method is used to send a message over a UDP connection in C#? A. Connect() B. Accept() C. Listen() D. Send() Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
28. What is the role of an IP address in networking? A. It defines the rules for communication between devices B. It encrypts data transmission between devices C. It uniquely identifies a device on a network D. It identifies a specific endpoint on a host Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
29. What is the purpose of the System.Net.NetworkInformation.Ping class in C#? A. To establish a TCP connection B. To create a UDP client C. To handle DNS resolution D. To send ICMP echo requests and receive responses Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
30. Which method is used to close a network connection in C#? A. Close() B. Open() C. Read() D. Write() Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board