1st Sem-Operating systems_1

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Multiple Answer Question The Linux system is composed of three main bodies of code, in line with most traditional UNIX implementations. Which are :-Correct Answer Kernel , System libraries , System utilities Your Answer System libraries , Programs , Kernel Multiple Choice Single Answer Question The class bird should have object Correct Answer Egale Your Answer Egale Multiple Choice Single Answer Question Objects are essentially :-Correct Answer Abstract data type Your Answer Abstract data type True/False Question Banker's algorithm is a deadlock-avoidance algorithm. Correct Answer True Your Answer True True/False Question Aging algorithm is based on LRU. Correct Answer True Your Answer False Select The Blank Question MULTICS uses a ________ in addition to file access for protection. Correct Answer Ring structure Your Answer Ring structure True/False Question A virus is a fragment of code embedded in a legitimate program Correct Answer True Your Answer True Multiple Choice Multiple Answer Question The basic hardware elements involved in I/O are :-Correct Answer Buses , Device controllers , Device Your Answer Keyboard , Buses , Device controllers True/False Question Main Memory is a volatile storage device that loses its contents when power is turned off. Correct Answer True Your Answer True Select The Blank Question In queuing diagram , each rectangular box represents a ________. Correct Answer Queue Your Answer Queue True/False Question Whenever a trap or interrupt occurs, the hardware switches from user mode to monitor mode. Correct Answer True Your Answer True Multiple Choice Single Answer Question As process enter the system, they are put into :-Correct Answer Job queue Your Answer Job queue Select The Blank Question During execution, ________ register holds the sector for the data segment. Correct Answer DS Your Answer CS Multiple Choice Multiple Answer Question The role of the operating system in computer I/O is to :-Correct Answer Manage I/O operation and devices , Control I/O operation and devices Your Answer Manage I/O operation and devices , Control I/O operation and devices Multiple Choice Multiple Answer Question What are the forms of malicious access? Correct Answer Unauthorized reading of data , Unauthorized modification of data , Unauthorized destruction of data Your Answer Unauthorized reading of data , Unauthorized modification of data , Unauthorized destruction of data Select The Blank Question A ________ is a computer or router that sits between the trusted and untrusted systems. Correct Answer Firewall Your Answer Firewall Multiple Choice Multiple Answer Question Dispatcher functions involves the following :-Correct Answer Switching context , Switching to user mode Your Answer Switching context , Switching to user mode Multiple Choice Multiple Answer Question Many-to-may model is supported by following operating systems :-Correct Answer Solaris , IRIX , Digital UNIX Your Answer IRIX , Solaris Select The Blank Question A ________ controller is built into each disk drive. Correct Answer Disk Your Answer Disk Match The Following Question Correct Answer Your Answer Parent process Child process Child process Foreground processes Interactive processes Interactive processes Background processes Batch processes Batch processes Light-Weight processes Thread Thread Select The Blank Question A class may be thought of as 'data-type' and object as ________ of that datatyype Correct Answer Variable Your Answer Variable True/False Question In Windows NT, interrupt object binds an interrupt service routine to an interrupt source. Correct Answer True Your Answer True True/False Question In Windows NT, each process has one or more threads, which are the units of execution dispatched by the kernel. Correct Answer True Your Answer True Multiple Choice Single Answer Question If Dog derives from Mammal, and Mammal derives from Animal, then -Correct Answer Dog inherits Animal's functions and data Your Answer Mammal inherits Animal's functions and data Multiple Choice Single Answer Question If the process is waiting to be assigned to CPU then it is said to be in :-Correct Answer Ready state Your Answer Ready state Multiple Choice Multiple Answer Question What are the components to memory management under Linux? Correct Answer Physical memory manager , Virtual memory manager Your Answer Physical memory manager , Virtual memory manager Multiple Choice Multiple Answer Question The Moriss Internet Worm was made up of which of the two programs? Correct Answer Grappling hook program , Main program Your Answer Target worm program , Grappling hook program Select The Blank Question The ________ controller is the controller at the computer end of the bus. Correct Answer Host Your Answer Disk True/False Question In Windows NT, kernel is object-oriented. Correct Answer True Your Answer True Multiple Choice Single Answer Question C++ is basically a procedural language having extension of Correct Answer Object Oriented technology Your Answer Graphic user interface Select The Blank Question In queuing diagram, the arrow indicates the flow of ________ in the system. Correct Answer Processes Your Answer Operation True/False Question Whenever the operating system gains control of the computer, it is in monitor mode. Correct Answer True Your Answer True Multiple Choice Single Answer Question C++ is also named as Correct Answer C with classes Your Answer Visual C++ Multiple Choice Single Answer Question The number of processes that are completed per time unit is called as:-Correct Answer Throughput of system Your Answer Efficiency of system Select The Blank Question A process is ________ if it can affect or be affected by the other processes executing in the system. Correct Answer Cooperating Your Answer Competing Multiple Choice Single Answer Question Collection of similar datatypes is called as Correct Answer Array Your Answer Array Match The Following Question Correct Answer Your Answer Random-access devices CD-ROM CD-ROM Character devices. Terminal Terminal Block devices Disk Disk Sequential devices Modem Modem Multiple Choice Multiple Answer Question The device number consists of which two parts in UNIX? Correct Answer Major device number , Minor device number Your Answer Device-id , Device-name Multiple Choice Single Answer Question The pure Object Oriented language is Correct Answer Java Your Answer C Multiple Choice Single Answer Question The concept of OOPS was first introduced in Correct Answer Simula Language Your Answer C language Multiple Choice Multiple Answer Question Most CPUs have two interrupt request lines. Which are they? Correct Answer Maskable , Non maskable Your Answer Maskable , Non maskable Multiple Choice Multiple Answer Question Different multithreading models available are :-Correct Answer Many-to-one model , One-to-one model , Many-to-many model Your Answer Many-to-one model , One-to-one model , Many-to-many model Select The Blank Question The ________ of a process is represented in the PCB of a process. Correct Answer Context Your Answer Block