CST 115

Question:Q1. When dealing with publicly accessible information sources, be sure to use information from several unrelated sources to balance the biases of each source.

    a. true

    b. false

 

Q2. Although not a formal UP discipline, systems evaluation and ____ is an important group of activities that accounts for much of the long-range system cost.

    a. integration

    b. maintenance

    c. design

    d. coordination

 

Q3. A large organization with a substantial investment in computer, network, and software technology usually has one high-level manager with the title ____.

    a. chief enterprise architect (CEA)

    b. chief information officer (CIO)

    c. information technology officer (ITO)

    d. chief systems architect (CSA)

 

Q4. End users use ____ to perform specific tasks, such as processing customer orders or developing and formatting documents and financial analyses.

    a. middleware

    b. application software

    c. system software

    d. design software

 

Q5. The ____ discipline of the UP includes all activities for building, acquiring, and integrating application software components.

    a. implementation

    b. design

    c. architecture

    d. requirements

 

Q6. A ____ consists of hardware and software components that enable users and computer systems to share information, software, and hardware resources.

    a. computer system

    b. computer network

    c. computer environment

    d. computer platform

 

Q7. ____ physics describes the behavior of matter at a subatomic level.

    a. Einsteinian

    b. Newtonian

    c. Relativity

    d. Quantum

 

Q8. A machine capable of addition can perform multiplication by executing the addition function multiple times.

    a. true

    b. false

 

Q9. In a modern digital computer, data is represented by groups of ____.

    a. qubits

    b. photons

    c. bits

    d. waves

 

Q10. The ____ software layer has utility programs used by system management and application programs to perform common functions

    a. system management

    b. system services

    c. machine independent

    d. machine dependent

 

Q11. The CPU contains a few internal storage locations called ____, each capable of holding a single instruction or data item.

    a. the ALU

    b. registers

    c. shifters

    d. the compiler

 

Q12. Workstation hardware capabilities depend on the resources being shared and the number of simultaneous users.

    a. true

    b. false

 

Q13. Scientific and floating-point notation is far more complex than integer data formats.

    a. true

    b. false

 

Q14. A(n) ____ is a set of related data values.

    a. pointer

    b. list

    c. array

    d. record

 

Q15. The multiplier that describes the difference between one position and the next is the ____ of the numbering system.

    a. base

    b. mantissa

    c. power

    d. exponent

 

Q16. ____ occurs when the absolute value of a negative exponent is too large to fit in the bits allocated to store it.

    a. Rounding

    b. Rotation

    c. Overflow

    d. Underflow

 

Q17. The accuracy, or precision, of data format representation increases with ____.

    a. the size of the data word

    b. the sign of the data format

    c. the number of data bits used

    d. the position of the radix

 

Q18. The fractional portion of a real number is represented by digits to the right of the ____.

    a. radix point

    b. mantissa

    c. exponent

    d. base

 

Q19. A(n) ____ is a data structure that uses pointers so that list elements can be scattered among nonsequential storage locations.

    a. array

    b. queue

    c. linked list

    d. stack

 

Q20. A ____ instruction copies data bits to storage locations and can copy data between any combination of registers and primary storage locations.

    a. JUMP

    b. LOAD

    c. STORE

    d. MOVE

 

Q21. Compared with CISC processors, RISC processors are efficient at executing programs that do many of the functions complex instructions are designed for.

    a. true

    b. false

 

Q22. An 8-bit op code provides 256 possible instructions numbered 0 through 255.

    a. true

    b. false

 

Q23. A(n) ____ directs the CPU to route electrical signals representing data inputs through predefined processing circuits that implement the appropriate function.

    a. operation

    b. process

    c. instruction

    d. cycle

 

Q24. ____ is the flow of electrons from one place or device to another.

    a. Electrical voltage

    b. Electrical current

    c. Electrical resistance

    d. Electrical conduction

 

Q25. The ____ section of the CPU performs all computation and comparison operations.

    a. register

    b. ALU

    c. shifter

    d. control unit

 

Q26. Low voltage circuits are less susceptible to damage from voltage surges and static electricity.

    a. true

    b. false

 

Q27. Magnetic tape and disk are considered volatile storage media.

    a. true

    b. false

 

Q28. Magnetic disk drives have an advantage over SSDs in power consumption.

    a. true

    b. false

 

Q29. The ____ is the device or substance that actually holds data.

    a. storage device

    b. storage medium

    c. storage method

    d. storage speed

 

Q30. ____ is the sum of average access delay and the time required to read a single sector.

    a. Average access time

    b. Rotational latency

    c. Track-to-track seek time

    d. Synchronization delay

 

Q31. Volatility is a matter of degree and conditions.

    a. true

    b. false

 

Q32. The ____, a newer packaging standard, is essentially a SIMM with independent electrical contacts on both sides of the module.

    a. double inline memory module

    b. dual inline package

    c. surface mount package

    d. zero-insertion force package

 

Q33. HTH switching time is the most important component of access time.

    a. true

    b. false

 

Q34. A ____ is a CPU cycle spent waiting for access to an instruction or data.

    a. wait state

    b. hold state

    c. purge state

    d. clock state

 

Q35. The memory bus has a much higher data transfer rate than the system bus because of its shorter length, higher clock rate, and (in most computers) large number of parallel communication lines.

    a. true

    b. false

 

Q36. Lossy compression of audio and video can achieve compression ratios up to ____.

    a. 25:1

    b. 50:1

    c. 75:1

    d. 100:1

 

Q37. Devices attached to a system bus coordinate their activities with a common ____.

    a. bus clock

    b. control bus

    c. data bus

    d. system bus

 

Q38. In most computers, an I/O port is a ____.

    a. system address

    b. memory block

    c. network device

    d. memory address

 

Q39. The term ____ describes the ratio of data size in bits or bytes before and after compression.

    a. compression value

    b. compression efficiency

    c. compression ratio

    d. compression value

 

Q40. Serial channels in buses are more reliable than parallel channels at very high speeds.

    a. true

    b. false

 

Q41. Devices with low data transfer demand can use a single lane, and devices with higher requirements can increase their available data transfer rate by using additional lanes.

    a. true

    b. false

 

Q42. The main goal of buffering and caching is to ____.

    a. control data channels

    b. improve I/O performance

    c. improve overall system performance

    d. reduce system load

 

Q43. ____ devices combine optical-scanning technology with a special-purpose processor or software to interpret bitmap content.

    a. Optical image recognition

    b. Optical character recognition

    c. Optical character reproduction

    d. Optical image resolution

 

Q44. Early plasma displays accepted the same analog video signals as CRTs.

    a. true

    b. false

 

Q45. A(n) ____ operates with an electrical charge and the attraction of ink to this charge.

    a. laser printer

    b. inkjet printer

    c. impact printer

    d. thermal printer

 

Q46. Bar-code readers are typically used to track large numbers of inventory items, as in grocery store inventory and checkout, package tracking, warehouse inventory control, and zip code routing for postal mail.

    a. true

    b. false

 

Q47. A collection of characters of similar style and appearance is called a ____.

    a. type

    b. scheme

    c. pitch

    d. font

 

Q48. Recognition is most accurate when text is printed in a single font and style, with all text oriented in the same direction on the page.

    a. true

    b. false

 

Q49. In the United States, resolution is generally stated in ____.

    a. lines per inch

    b. pixels per line

    c. dots per inch

    d. dots per millimeter

 

Q50. On paper, pixel size corresponds to the smallest drop of ink that can be placed accurately on the page.

    a. true

    b. false