CEH v9 Question of the Week: Full TCP connection

Which type of scan opens a full TCP connection?

A. TCP Connect Scan
B. FIN Scan
C. SYN Scan
D. RST Scan

Reveal Answer

The correct answer is A.

TCP connect() scanning is the most basic form of TCP scanning. The connect() system call provided by your operating system is used to open a connection to every interesting port on the target machine. It completes the whole SYNàSYN-ACKàACK handshake process. FIN and RST scanning, on the other hand, sets just the TCP FIN and RST bit. SYN scan is also known as half-open scanning.

 

Related Course
Certified Ethical Hacker v9

CEH v9 Question of the Week Series

• CEH v9 Question of the Week: Retina Scanners
• CEH v9 Question of the Week: Employee Behavior
• CEH v9 Question of the Week: CVE-2007-2447
• CEH v9 Question of the Week: SQL Injection
• CEH v9 Question of the Week: Web Application Penetration Testing
• CEH v9 Question of the Week: iptables
• CEH v9 Question of the Week: Examine Streams of Packets
• CEH v9 Question of the Week: Scans
• CEH v9 Question of the Week: SQL Injection
• CEH v9 Question of the Week: Standard Risk Assessment
• CEH v9 Question of the Week: Penetration Testing
• CEH v9 Question of the Week: SMB Over TCP/IP
• CEH v9 Question of the Week: Block Cipher
• CEH v9 Question of the Week: Prevent Future DoS Attacks
• CEH v9 Question of the Week: Same MAC Address
• CEH v9 Question of the Week: XSS Scripting
• CEH v9 Question of the Week: Sniff a Switched Network
• CEH v9 Question of the Week: TCP/IP Session Hijacking
• CEH v9 Question of the Week: Firewall Traffic
• CEH v9 Question of the Week: Full TCP connection

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