_______________ works as a command interpretor
A) Hardware B) Kernal C) Shell D) CPU
6. The process which terminates before the parent process exits, is called as
A) Zombie B) Orphan C) Child D) None
74. The primary characteristic of a key field as that it must be
A) A Name B) Text C) Unique D) All
8. The following socket provides two way, sequenced, reliable and unduplicated flow of data with no record boundaries.
A) Sequential packet socket B) Datagram socket C) Stream socket D) Raw socket
A) C) Shell
To confirm this answer, we can look at the options and determine which one is related to the command interpreter. A hardware refers to the physical components of a computer, the kernel is the core part of the operating system that manages system resources, and the CPU is responsible for executing instructions. The shell, on the other hand, is the command interpreter that allows users to interact with the operating system by executing commands and scripts.
For the second question:
A) B) Orphan
To determine the right answer, we can understand the definitions of each option. A zombie process is a terminated process that still retains some entries in the process table. An orphan process is a process whose parent process has finished or terminated. A child process is a process that is created by another process. Based on these definitions, an orphan process is the one that terminates before the parent process exits.
For the third question:
A) C) Unique
To determine the right answer, we need to understand the concept of a key field. A key field is a field or attribute that is used to uniquely identify records in a database. The purpose of a key field is to ensure data integrity and prevent duplicate records. Based on this definition, the primary characteristic of a key field is that it must be unique.
For the fourth question:
A) C) Stream socket
To determine the right answer, we can look at the options and understand the characteristics of each type of socket. A sequential packet socket provides sequenced and reliable flow of data but may have record boundaries. A datagram socket provides unreliable and unordered flow of data. A stream socket, on the other hand, provides two-way, sequenced, reliable, and unduplicated flow of data with no record boundaries. Based on this information, the correct answer is a stream socket.