Question 1

Each entry in a segment table has a :
A)segment base
B)segment peak
C)segment limit
D)segment value

Accepted Answer

A segment limit is the maximum address that can be accessed within a segment.

Question 2

The segment base contains the :
A)starting logical address of the process
B)starting physical address of the segment in memory
C)segment length
D)none of these

Accepted Answer

The segment base contains the starting physical address of the segment in memory, which is used to access the segment's data.

Question 3

The segment limit contains the :
A)starting logical address of the process
B)starting physical address of the segment in memory
C)segment length
D)none of these

Accepted Answer

The segment limit typically specifies the segment length, which is used to determine the range of valid addresses within the segment.

Question 4

The offset 'd' of the logical address must be :
A)greater than segment limit
B)between 0 and segment limit
C)between 0 and the segment number
D)greater than the segment number

Accepted Answer

The offset 'd' of the logical address must be between 0 and the segment limit to ensure that the address falls within the bounds of the segment it is addressing. This prevents accessing memory locations outside of the designated segment.

Question 5

If the offset is legal :
A)it is used as a physical memory address itself
B)it is subtracted from the segment base to produce the physical memory address
C)it is added to the segment base to produce the physical memory address
D)none of these

Accepted Answer

The answer of If the offset is legal :
A)it is...

Question 6

When the entries in the segment tables of two different processes point to the same physical location :
A)the segments are invalid
B)the processes get blocked
C)segments are shared
D)all of these

Accepted Answer

Segments are shared when the entries in the segment tables of two different processes point to the same physical location. This allows for efficient memory use and inter-process communication.

Question 7

If there are 32 segments, each of size 1Kb, then the logical address should have :
A)13 bits
B)14 bits
C)15 bits
D)16 bits

Accepted Answer

Logical address = log2(number of segments) + log2(segment size)= log2(32) + log2(1024)= 5 + 10= 15 bits

Question 8

It uses a direct mapping scheme for cache management. How many different main memory blocks can map onto a given physical cache block ?
A)2048
B)256
C)64
D)8

Accepted Answer

The answer of It uses a direct mapping scheme for...

Question 9

A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because :
A)it reduces the memory access time to read or write a memory location
B)it helps to reduce the size of page table needed to implement the virtual address space of a process
C)it is required by the translation look aside buffer
D)it helps to reduce the number of page faults in page replacement algorithms

Accepted Answer

Multilevel page tables help reduce the size of the page table by only allocating memory for the parts of the table that are actually used, rather than allocating a large single block of memory for all possible page table entries.

Question 10

The three general methods for delivering content from a server to a client across a network are :
A)unicasting
B)duplex-casting
C)broadcasting
D)multicasting

Accepted Answer

The answer of The three general methods for delivering content...

Question 11

Unicasting delivers the content to :
A)a single client
B)all clients, regardless whether they want the content or not
C)a group of receivers who indicate they wish to receive the content
D)none of these

Accepted Answer

Unicasting is the process of sending data from one sender to one specific receiver, hence it delivers content to a single client.

Question 12

Broadcasting delivers the content to :
A)a single client
B)all clients, regardless whether they want the content or not
C)a group of receivers who indicate they wish to receive the content
D)none of these

Accepted Answer

Broadcasting involves sending content to all clients, regardless of whether they have expressed a desire to receive the content or not. This is typical in scenarios like television or radio broadcasting, where the signal is sent out to everyone within range.

Question 13

Multicasting delivers the content to :
A)a single client
B)all clients, regardless whether they want the content or not
C)a group of receivers who indicate they wish to receive the content
D)none of these

Accepted Answer

Multicasting is a method used to deliver content over a network to a group of destination computers simultaneously in a single transmission from the source. This method is efficient for distributing information to multiple receivers, but only those who have indicated they wish to receive the content, making option C correct.

Question 14

RTSP stands for :
A)real time streaming policy
B)real time streaming protocol
C)real time systems protocol
D)read time streaming policy

Accepted Answer

RTSP stands for Real Time Streaming Protocol, which is a network control protocol designed for use in entertainment and communications systems to control streaming media servers.

Question 15

In the SETUP state :
A)the server is setup
B)the client is setup
C)the server allocates resources for the client session
D)the client sends requests to the server

Accepted Answer

In the SETUP state, the server allocates resources for the client session, preparing for the client's requests and ensuring that the necessary resources are available to handle the session effectively.

Question 16

In the TEARDOWN state :
A)the server breaks down the connection and releases the resources allocated for the session
B)the client breaks down the connection and releases the resources allocated for the session
C)the system crashes
D)none of these

Accepted Answer

In the TEARDOWN state, the server is responsible for breaking down the connection and releasing the resources allocated for the session.

Question 17

The problem with unicast delivery is that the :
A)memory allocation is difficult
B)server must establish a seperate unicast session for each client
C)the routers must support unicasting
D)the clients must be close to the server

Accepted Answer

Unicast delivery requires the server to establish a separate session for each client, which can be resource-intensive and limit scalability.

Question 18

To let a client have random access to a media stream :
A)the protocol used must not be stateless
B)the server must support download
C)the stream should give access rights to the client
D)all of these

Accepted Answer

For a client to have random access to a media stream, the protocol used must not be stateless because stateful communication is required to keep track of the client's position within the media stream.

Question 19

The model in which one kernel thread is mapped to many user-level threads is called :
A)many to one model
B)one to many model
C)many to many model
D)one to one model

Accepted Answer

In the many-to-one model, one kernel thread is mapped to many user-level threads. This model is also known as the many-to-few model.

Question 20

The model in which one user-level thread is mapped to many kernel level threads is called :
A)many to one model
B)one to many model
C)many to many model
D)one to one model

Accepted Answer

The one to many model maps one user-level thread to many kernel-level threads, allowing a single user thread to be executed on multiple processors simultaneously.

Quiz 4: Memory Management, Content Delivery, and Thread Models

Each entry in a segment table has a :

The segment base contains the :

The segment limit contains the :

The offset 'd' of the logical address must be :

If the offset is legal :

When the entries in the segment tables of two different processes point to the same physical location :

If there are 32 segments, each of size 1Kb, then the logical address should have :

It uses a direct mapping scheme for cache management. How many different main memory blocks can map onto a given physical cache block ?

A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because :

The three general methods for delivering content from a server to a client across a network are :

Unicasting delivers the content to :

Broadcasting delivers the content to :

Multicasting delivers the content to :

RTSP stands for :

In the SETUP state :

In the TEARDOWN state :

The problem with unicast delivery is that the :

To let a client have random access to a media stream :

The model in which one kernel thread is mapped to many user-level threads is called :

The model in which one user-level thread is mapped to many kernel level threads is called :