Question 1

When either the sender and receiver are linked and ready to send and receive, the communication is ____.

Accepted Answer

When the sender and receiver are linked and ready to communicate in real time, the communication is considered synchronous. Asynchronous communication would involve sending messages that can be read or responded to at a later time, and indirect communication would involve a third party or intermediary. Direct communication merely implies that the message goes directly from the sender to the receiver, but it does not necessarily indicate whether it is synchronous or asynchronous.

Question 2

Typically, the system's scheduling function has three parts: a ____, a priority function, and an arbitration rule.

Accepted Answer

The decision mode is a part of the system's scheduling function, along with a priority function and an arbitration rule.

Question 3

The ____ is responsible for process synchronization mechanisms and communication support.

Accepted Answer

The kernel, as the core of the operating system, is responsible for managing and coordinating processes, including synchronization mechanisms and communication support. The other options are not directly related to these functions.

Question 4

A scheduler based on process priorities and durations is an example of the ____.

Accepted Answer

The answer of A scheduler based on process priorities and...

Question 5

When processes-or objects-need to communicate with each other, the Network Manager links them together through a queue.

Accepted Answer

The Network Manager does not link processes or objects together through a queue. It is responsible for managing network connections and configurations on a device. Communication between processes or objects typically occurs through inter-process communication mechanisms such as sockets or message passing.

Question 6

The ____ control is used to facilitate automatic bounds-checking on stacks and other types of data structures.

Accepted Answer

A guard-page control is used to detect when certain types of memory accesses operate outside valid memory regions, such as stack overflows. When a program attempts to access memory beyond the guard-page, the operating system can detect and interrupt the program, preventing potential security vulnerabilities or crashes. No-access, execute-only, and read-only controls do not necessarily provide this type of bounds-checking functionality.

Question 7

To control the demand, the Memory Manager handles requests from the process manager to allocate and deallocate space based on ____.

Accepted Answer

The answer of To control the demand, the Memory Manager...

Question 8

Most Web browsers display FTP directories using graphical icons to represent available files and directories.

Accepted Answer

This statement is true. Most web browsers use graphical icons to represent FTP directories and files for easy browsing and navigation.

Question 9

The find-and-copy technique isn't considered true file sharing because all users wanting access to the data file must copy the file onto their own systems, thereby duplicating the code and wasting space.

Accepted Answer

The find-and-copy technique involves duplication of the file on each user's system, which wastes space and is not true file sharing.

Question 10

In a distributed system, there is a high level of cooperation and sharing of actions and data maintained by the sites when determining which process should be loaded and where it should be run; this is accomplished by ____.

Accepted Answer

In a distributed system, sites exchange messages between their operating systems to coordinate actions and data sharing, which helps in determining process allocation and execution.

Question 11

For each node, the Memory Manager uses a kernel with a ____ algorithm to track the amount of memory that is available.

Accepted Answer

The Memory Manager uses a paging algorithm to track the amount of memory that is available on each node. Paging is a memory management scheme that divides the physical memory into fixed-sized blocks called pages, and the process of allocating and deallocating memory is done on a per-page basis. This makes it easier for the operating system to manage memory and ensures that each process is given the required amount of memory for optimal performance.

Question 12

____ is true of a NOS.

Accepted Answer

Resources are owned by local nodes in a NOS.

Question 13

When a process reaches a point at which it needs service from an external source, such as an I/O request, it sends a message searching for the service; while it waits for a response, the processor server puts the process in a ____ state.

Accepted Answer

When a process needs service from an external source, it sends a message and enters the waiting state until it receives the response. The options A, C, and D do not accurately represent the state in which the process is in while waiting for the response.

Question 14

The biggest limitation of a NOS is ____.

Accepted Answer

A NOS (Network Operating System) provides management functions for a network, but it does not necessarily have global control over management functions. This means that there may be limitations on what the NOS can do in terms of managing the network. Performance issues and security concerns can also be limitations of a NOS, but they are not necessarily the biggest limitations. Cost could be a factor, but it is not necessarily prohibitively expensive. Overall, the biggest limitation of a NOS is likely the fact that it may not have complete control over all management functions on the network.

Question 15

When an application tries to access a page that is not in memory, a ____ occurs and the Memory Manager automatically brings that page into memory.

Accepted Answer

When an application tries to access a page that is not in memory, it causes a page fault. The Memory Manager then automatically brings that page into memory. This process is called demand paging, which is a method used by operating systems to allow virtual memory use. Pages are only brought into memory as they are needed, rather than being loaded in advance or allocated all at once.

Question 16

To determine an object's state, one must ____.

Accepted Answer

To determine an object's state, one must perform an appropriate operation on it. The state of an object is defined by the values of its properties or attributes, and these can be accessed and modified by performing operations on the object. Examining a state property or state block may provide information about the state, but the actual determination of state requires performing an operation on the object. A state table maintained by a DO/S may be useful in certain contexts, but it is not a general method for determining an object's state.

Question 17

In a typical NOS environment, a user who wants to run a local process at a remote site must first ____.

Accepted Answer

The answer of In a typical NOS environment, a user...

Question 18

Deadlock caused by circular waits is not an issue in a distributed operating system.

Accepted Answer

Deadlocks caused by circular waits can still occur in a distributed operating system, as processes or nodes may still depend on resources that are needed by other processes or nodes, leading to a situation where none of them can proceed. However, the distributed nature of the system may provide additional options for resolving deadlocks, such as dynamic resource allocation or routing around problematic nodes.

Question 19

Networks are becoming increasingly homogeneous.

Accepted Answer

Networks are becoming increasingly heterogeneous, incorporating diverse technologies and devices to meet varied user demands and improve performance.

Question 20

The major difference between a NOS and DO/S is ____.

Accepted Answer

NOS (Network Operating System) manages and controls the network resources, whereas DO/S (Distributed Operating System) manages and controls both local and global resources. Therefore, the major difference between them is how they view and manage the local and global resources. The cost, scalability, and capabilities provided by the operating system are not the major differences between them.

Quiz 10: Management of Network Functions