In SCSI disks used in high end PCs, the controller maintains a list of _________ on the disk. The disk is initialized during ________ formatting which sets aside spare sectors not visible to the operating system.

A. Destroyed blocks, partitioning
B. Bad blocks, low level formatting
C. Destroyed blocks, high level formatting
D. Bad blocks, partitioning

Which principle states that programs, users, and even the systems be given just enough privileges to perform their task?

A. Principle of least privilege
B. Principle of process scheduling
C. Principle of operating system
D. None of the mentioned

What are the types of distributed operating systems?

A. Zone based operating system
B. Level based operating system
C. Network operating system
D. All of the mentioned

What memoory management technique is the most effective when it comes to time sharing?

A. Virtual Memory
B. Non-contiguous Memory Allocation
C. No effective technique
D. None of these

What is the disadvantage of real addressing mode?

A. There is a lot of cost involved
B. Time consumption overhead
C. Absence of memory protection between processes
D. Restricted access to memory locations by processes

What is multimedia file?

A. Is same as any other regular file
B. Must be accessed at specific rate
C. Stored on remote server can not be delivered to its client
D. None of the mentioned

Which of the following provides a buffer between the user and the low-level interfaces to the hardware?

A. Operating system
B. Kernel
C. Software
D. Hardware

Explanation: The operating system is software which provides a buffer between the low-level interfaces to the hardware within the system and the user.

On which port will the server generally listen to for SMTP?

A. Port 35
B. Port 63
C. Port 25
D. Port 65

Explanation: The server would have to listen on port 25 for the simple mail transfer protocol.