Using pumping lemma, which of the following cannot be proved as ‘not a Context Free Language’?

a. all of the mentioned
b. {aibici|i>=0}
c. {ss|s∈{a, b}*}
d. none of the mentioned

What ordering of tcp flags makes up the three-way handshake?

The cm is responsible for overseeing the actions of the crisis management team and coordinating all crisis management efforts in cooperation with disaster recovery and/or business continuity planning, on an as-needed basis

Consider the following statements, then select one of the answers below: the signal() function shown below registers "sig_handler()" as the signal handler function for the sigkill signal, without the complexity of using when the sigkill signal is sent to a process running this code, by a user typing "kill -kill ", where the correct process id is used for to target the process, sig_handler() will be executed.