Which timing template corresponds to the default 'Parallel, normal speed scan' when no speed is assigned?

Which timing template corresponds to the default 'Parallel, normal speed scan' when no speed is assigned?

• A. -T0
• B. -T1
• C. -T2
• D. The timing template -T3

Answer: (D)

Timing templates control how aggressively Nmap probes a network. When you don’t specify a speed, Nmap uses a default template that balances speed and stealth for general use. That default corresponds to a parallel, normal speed scan, which is represented by -T3. It sits at a middle ground—faster than the slow, stealth-focused templates but not as loud as the faster options. The other templates are designed for more cautious ( -T0, -T1, -T2 ) or more aggressive ( -T4, -T5 ) scans, so they don’t describe the default behavior. Hence, the default parallel, normal speed scan is -T3.

Timing templates control how aggressively Nmap probes a network. When you don’t specify a speed, Nmap uses a default template that balances speed and stealth for general use. That default corresponds to a parallel, normal speed scan, which is represented by -T3. It sits at a middle ground—faster than the slow, stealth-focused templates but not as loud as the faster options. The other templates are designed for more cautious ( -T0, -T1, -T2 ) or more aggressive ( -T4, -T5 ) scans, so they don’t describe the default behavior. Hence, the default parallel, normal speed scan is -T3.