Test 2 Solutions - Information Technology Hardware and Systems Software | CMIS 310 | Exams Software Engineering

Practice test

1. Token passing avoids the potential inefficiencies of CSMA/CD because no

transmission capacity is wasted on collisions and retransmissions.

2. Computer system components coordinate their activities by sending appropriate

signals over the control bus.

3. The units of measurement for font size are called points.

4. Which of the following is a fault tolerance feature of Windows NTFS? All of the

above

5. A communication protocol is a set of rules and conventions for communication.

6. If a compression method typically reduces a 100 MByte file to 50 MBytes, then

compression ratio is 2:1.

7. Where does the translation from logical access to physical accesses normally take

place? Device controller .

8. The number of bits used to represent a memory address determine the amount of a

CPU’s addressable memory.

9. Access time is typically stated in millisecond s for secondary storage devices and

nanoseconds for primary storage devices.

10. Which of the following is a high-speed interconnection among general-purpose

servers and a separate storage server? Storage area network

11. Short answer: Describe the logical view of a disk storage device. Describe the

physical view of a disk storage device.

12. The time that the disk controller must wait for the proper sector to rotate beneath

the heads is called rotational delay.

13. Square waves are the preferred method of digital data transmission over relatively

short distances, for example, on a computer system bus.

14. When multiple nodes attempt to transmit across the same medium at the same time

a collision is said to have occurred.

15. A buffer is not required when data transfer rates differ. (This question may be

thrown out)

16. The printing industry generally uses inks based on the subtractive colors, which are

cyan, magenta, and yellow.

17. To which type of data is lossy compression best suited? Audio files

18. The system bus is the communication channel that connects all computer system

components.

19. A communication channel consists of a sending device, receiving device, and the

transmission medium that connects them.

20. The JPEG format is a commonly used method of compressed storage for graphic

images.

21. The output resolution of a graphic display device (e.g., a laser printer) is normally

measured in dots per inch (DPI).

22. Short answer: What are the advantages and disadvantages of large allocation units

compared to small allocation units?

Partial preview of the text

Download Test 2 Solutions - Information Technology Hardware and Systems Software | CMIS 310 and more Exams Software Engineering in PDF only on Docsity!

Token passing avoids the potential inefficiencies of CSMA/CD because no transmission capacity is wasted on collisions and retransmissions.
Computer system components coordinate their activities by sending appropriate signals over the control bus.
The units of measurement for font size are called points.
Which of the following is a fault tolerance feature of Windows NTFS? All of the above
A communication protocol is a set of rules and conventions for communication.
If a compression method typically reduces a 100 MByte file to 50 MBytes, then compression ratio is 2:1.
Where does the translation from logical access to physical accesses normally take place? Device controller.
The number of bits used to represent a memory address determine the amount of a CPU’s addressable memory.
Access time is typically stated in milliseconds for secondary storage devices and nanoseconds for primary storage devices.
Which of the following is a high-speed interconnection among general-purpose servers and a separate storage server? Storage area network
Short answer: Describe the logical view of a disk storage device. Describe the physical view of a disk storage device.
The time that the disk controller must wait for the proper sector to rotate beneath the heads is called rotational delay.
Square waves are the preferred method of digital data transmission over relatively short distances, for example, on a computer system bus.
When multiple nodes attempt to transmit across the same medium at the same time a collision is said to have occurred.
A buffer is not required when data transfer rates differ. (This question may be thrown out)
The printing industry generally uses inks based on the subtractive colors, which are cyan, magenta, and yellow.
To which type of data is lossy compression best suited? Audio files
The system bus is the communication channel that connects all computer system components.
A communication channel consists of a sending device, receiving device, and the transmission medium that connects them.
The JPEG format is a commonly used method of compressed storage for graphic images.
The output resolution of a graphic display device (e.g., a laser printer) is normally measured in dots per inch (DPI).
Short answer: What are the advantages and disadvantages of large allocation units compared to small allocation units?

The term sector is used to describe the data transfer unit for magnetic and optical disk drives.
A network node is a device such as a computer system, printer, or router attached to a network that can send or receive messages.
A token is a special purpose packet, representing the right to originate network messages.
Allocation units cannot be smaller than the unit of data transfer between the storage device and controller.
Disk mirroring is a fault tolerance technique in which all disk write operations are made simultaneously or concurrently to two different storage devices.
What type of protocol defines the methods by which a network node may access a shared transmission medium? Media access control
By default, what do most file management and operating systems do when a user deletes a file? Mark the storage allocation unit as free and the directory entry as unused.
What type of RAM requires frequent refresh cycles to maintain its data content? Dynamic
Which of the following is not a direct access storage device? Magnetic tape
A monitor is connected to a video controller which is, in turn, connected to the system bus.
The speed at which data can be moved over a communication channel is called the channel’s data transfer rate.
Early Microsoft operating systems (including MS-DOS and Windows versions through Windows Me) use a file system called the file allocation table.
A physical connection between two different networks can be implemented using any of the following except a cap.
The Open Systems Interconnection model defines a generic set of software and hardware layers for networks and distributed systems.
Dithering creates a pattern of primary colored pixels that fools the eye into thinking a composite color is being displayed.
A socket is a combination of an IP address and a service port number.
The areas of a CD-ROM that store single bit values are called lands or pits, depending on whether the data content is a zero or one.
The size range of a typical secondary storage block is approximately 512 bytes to 4 kilobytes.
Which of the following provides the interface between the storage device and the system bus? Device controller
Short answer: Why are point-to-point connections impractical for the majority of computer networks? These methods, however, are impractical and wasteful when applied to very large networks. The number and length of the links require too much infrastructure to be cost-efficient, and the majority of those links would be idle most of the time.
A message is a unit of data or information transmitted from a sender to one or more recipients.
Which of the following is an image compression standard? All of the above

The CPU is always capable of being a bus master , thus controlling access to the bus by all other devices in the computer system.
I/O ports enable the CPU and bus to interact with a keyboard in exactly the same way they interact with a disk drive or video display.
A complete cycle of a sine wave follows its full range from zero to positive peak, back to zero, to its negative peak, and then back to zero again.
An interrupt is a signal to the CPU or operating system that some device or program requires processing services.
Under relative addressing, a program’s memory reference is added to the content of an offset register to calculate the corresponding physical memory address.
A physical connection between two different networks or network segments Is implemented using a switch.
An interrupt table stores the memory address of the first instruction of each interrupt handler.
A central node connected to multiple networks or network segments maintains an internal routing table that tells it which network addresses correspond to which physical networks or network segments.
Which physical topology type connects all end nodes to a common (shared) transmission medium? Bus
Data striping improves read performance by breaking a large read operation into multiple smaller parallel read operations.
Short answer: What is/are the advantage(s) of image description languages as compared to bitmaps?
Secondary storage devices are not generally attached directly to the system bus. Instead, they are attached to a device controller which is, in turn, attached to the system bus.
What signal-to-noise ratio level is required for accurate data transmission? Positive
Which of the following reduces CPU and computer system performance? Wait state
Unix file access control types include read, write, and execute.
Which of the following is an image description language? Postscript
A cache is a small area of fast memory that can be used to minimize wait states when reading from a primary or secondary storage device.

Test 2 Solutions - Information Technology Hardware and Systems Software | CMIS 310, Exams of Software Engineering

Related documents

Partial preview of the text

Download Test 2 Solutions - Information Technology Hardware and Systems Software | CMIS 310 and more Exams Software Engineering in PDF only on Docsity!