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Once the program obtains privileges through the Set-UID mechanism, the program has super user (root user) privileges. ( 11.

Once the program obtains privileges through the Set-UID mechanism, the program has super user (root user) privileges. ( 11.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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11-20 True or false 

11. Once the program obtains privileges through the Set-UID mechanism, the program has super user (root user) privileges. ( ) In the Linux operating system, the user's password is stored in the /etc/passwd file. ( ) 12. Race condition vulnerabilities usually occur between detection (Time Of Check) and use (Time Of Use) for a resource. () 13. When a piece of data is read multiple times from a memory address, the second read tends to be faster than the first, which is a phenomenon due to the properties of CPU cache. ( ) 14. TCP Reset attacks can be effectively implemented on SSH connections. () 15. 16. An attacker can successfully implement a TCP SYN flooding attack with a fixed source IP address. ( ) 17. Buffer overflow vulnerabilities can be avoided by using strncpy(), strncat(). ( ) The Socket type of the network communication program based on TCP protocol is SOCK_STREAM. ( ) 18. 19. In the Linux operating system, the privileged shell instruction for the program TEST is: $sudo chmod 4755 TEST. ( ) 20. The monitoring and forgery of data packetsin ANY network can be realized using network packet sniffing and spoofing techniques. ( )
Transcribed Image Text:11. Once the program obtains privileges through the Set-UID mechanism, the program has super user (root user) privileges. ( ) In the Linux operating system, the user's password is stored in the /etc/passwd file. ( ) 12. Race condition vulnerabilities usually occur between detection (Time Of Check) and use (Time Of Use) for a resource. () 13. When a piece of data is read multiple times from a memory address, the second read tends to be faster than the first, which is a phenomenon due to the properties of CPU cache. ( ) 14. TCP Reset attacks can be effectively implemented on SSH connections. () 15. 16. An attacker can successfully implement a TCP SYN flooding attack with a fixed source IP address. ( ) 17. Buffer overflow vulnerabilities can be avoided by using strncpy(), strncat(). ( ) The Socket type of the network communication program based on TCP protocol is SOCK_STREAM. ( ) 18. 19. In the Linux operating system, the privileged shell instruction for the program TEST is: $sudo chmod 4755 TEST. ( ) 20. The monitoring and forgery of data packetsin ANY network can be realized using network packet sniffing and spoofing techniques. ( )
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