Excluding more than one thread from accessing shared data is referred to as _________

This utility enables you to perform general administrative actions on any LDAP directory service, including AD DS and AD LDS. Its use involves connecting and binding to the instance to be managed and then displaying the hierarchy (tree) of a distinguished name of the instance to be managed

a. The Active Directory Services Interface (ADSI) Edit snap-in b. The Ldp.exe administrative tool c. The Active Directory Schema snap-in d. The Active Directory Sites and Services snap-in

A RISC processor implements a subroutine call using a link register (i.e., the return address is saved in the link register).The cost of a call is 2 cycles and the return costs 1 cycle. If a subroutine is called from another subroutine (i.e., the subroutine is nested), the contents of the link register must be saved and later restored. The cost of saving the link register is 6 cycles and the cost of restoring the link register is 8 cycles. Assume that a certain instruction mix contains 20% subroutine calls and returns (i.e., 10% calls, 10% returns). The probability of a single subroutine call and return without nesting is 60%. The probability that a subroutine call will be followed by a single nested call is 40%. Assume that the probability of further nesting is vanishingly small. What is

the overall cost of subroutine calls? The average call of all other instructions is 1.5 cycles. What is the average number of cycles per instruction? What will be an ideal response?