As a security consultant, you have been hired to conduct a network assessment for a company. The security team needs to understand what operating systems are running on their network devices for vulnerability management. You execute a command and receive the following output: TCP ISN Sequence Analysis: Class=random positive increments Difficulty=3651714 (Good luck!) TCP Options: MSS=1460 SACK=Y Timestamp=Y NOP WS=128 T1(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AS%Ops=MNNTNNW) T2(Resp=N) T3(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AS%Ops=MNNTNNW) T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) OS: Linux 5.4.0-89-generic Which approach is represented by this output for effective OS identification?