2013级《计算机导论(双语)》期末考试试题A卷

2013-2014学年第1学期

2013级《计算机导论》期末考试试题A卷

考试时间：2013年12 月15日

班级学号姓名

✧要求答案写在答题纸上，不必抄题；

✧要求在每个大题号(I, II, III,IV,V)前划一个满页的横线，以便教师批阅；

✧要求在答题纸和试题纸上都写上班级、学号和姓名，交卷时一并交上来。

I、Choice Questions(25 questions, 1 score for each question)

1.In the von Neumann model, the _____ subsystem performs calculations and logical operations.

a. ALU

b. input/output

c. memory

d. control unit

2.According to the von Neumann model, _____ stored in memory.

a. only data are

b. only programs are

c. data and programs are

d. none of the above

3.In extended ASCII, each symbol is _____ bits.

a. 7

b. 8

c. 9

d. 10

4.An image can be represented in a computer using the _____ method.

a. bitmap graphic

b. vector graphic

c. matrix graphic

d. a or b

5.How many symbols can be represented by a bit pattern with 10 bits?

a. 128

b. 256

c. 512

d. 1024

6. A byte consists of _____ bits.

a. 4

b. 8

c. 32

d. 16

7.To set (force to 1) all the bits of a bit pattern, make a mask of all 1s and then _____ the bit pattern

and the mask.

a. NOT

b. AND

c. OR

d. XOR

8.In _____ number representation, there are two representations for 0.

a. sign-and-magnitude

b. one’s complement

c. two’s complement

d. a and b

9.In paging, a program is divided into equally sized sections called _____.

a. pages

b. frames

c. segments

d. partitions

10.The _____ scheduler creates a process from a job and changes a process back to a job.

a. job

b. process

c. virtual

d. queue

11.A process in the ready state goes to the running state when _____.

a. it finishes running

b. it enters memory

c. it gets access to the CPU

d. it requests I/O

12.Every process is a _____.

a. job

b. program

c. partition

d. a and b

13._____ is a program that facilitates the execution of other programs.

a. An operating system

b. Hardware

c. A queue

d. An application program

14._____ can occur if a process has too many resource restrictions.

a. Starvation

b. Synchronization

c. Paging

d. Deadlock

15.The _____ layer of the OSI model is responsible for node-to-node delivery of a frame between

two adjacent stations

a. transport

b. network

c. data-link

d. session

16.The network layer protocol of TCP/IP is called _____.

a. TCP

b. UDP

c. IP

d. a and b

17._____ topology needs cable terminators.

a. bus

b. ring

c. star

d. all of the above

18.A router operates at _____ layer of the OSI model.

a. all layers

b. the first four layers

c. the first three layers

d. application

19.The _____ memory contains a copy of a portion of main memory.

a. CPU

b. cache

c. main

d. ROM

20.If the memory address space is 16 MB and the word size is 8 bits, then _____ bits are needed to

access each word.

a. 8

b.16

c. 24

d. 32

21.In the _____ method to synchronize the operation of the CPU with the I/O device, the I/O device

informs the CPU when it is ready for data transfer.

a. programmed I/O

b. DMA

c. isolated I/O

d. interrupt-driven I/O

22.The data in _____ are erased if the computer is powered down.

a. RAM

b. ROM

c. a tape drive

d. a CD-ROM

23._____ is a protocol for mail services.

a. FTP

b. SMTP

c. TELNET

d. HTTP

24.A _____ document has fixed contents.

a. static

b. dynamic

c. active

d. all of the above

25.The OSI model has _____ layers.

a. 5

b. 6

c. 7

d. any of the above

II、Questions(5 questions, 4 scores for each question)

1.What are the parts of a CPU?

2.What steps are needed to convert audio data to bit patterns?

3.What are the steps in a machine cycle?

four types of network connecting devices.

5.What are four necessary conditions for deadlock?

III、Calculation(5 subjects, 4 scores for each subject)