单选

计算机中使用的图像压缩编码方法有多种：JPEG是一种适用范围广、能满足多种应用需求的国际标准。在允许有失真但又不易被察觉的要求下，JPEG一般能将图像数据压缩多少倍? () 。

A.5倍以下
B.100倍左右
C.60倍左右
D.10倍左右

试题出自试卷《2011年程序员考试考前密卷（六）-上午试题》

参考答案

查看试卷详情

相关试题

●Where box testing of softw
- are testing is a test for software structure.Which of the following item should noe
- be in
- clu
- ded ing the content of white box? (75) . (75) A．boundary value analysis
- B．statement testing
- C．branch testing
- D．path testing
点击查看答案
● Softw
- are maintenance is to do necessary modification，supplenemt，and completeness during software life circle．Among the following vary kinds of maintenance，which one has the maximum workload in a general way?&n
- bsp;(73) ． (73) A．relevan
- ce maintenance
- B．completeness maintenance
- C．correctness naintenance
- D．other kinds of maintenance
点击查看答案
●If file
- A has the capa
- bility of 724，the same group's users of file A may do (74) . (74) A．read A only
- B．write A
- C．execute A
- D．non-operation
点击查看答案
●
- A firewall is a&n
- bsp;(71) system designed to (72) an organization′s network against threats. (71) A．operating
- B．programming
- C．security
- D．data (72) A．prevent
- B．protect
- C．examine
- D．exploit
点击查看答案
●In order to improve the perform
- ance of a network server，you need to select
- bus or lo
- cal bus．The appropriate local bus is (69) ． (69) A．VESA
- B．ISA
- C．EISA
- D．PCI
点击查看答案
●Loc
- al
- bus
- can increase the
- data throughput．The bus that is most frequently used is (70) ． (70) A．VESA
- B．PCI
- C．MCA
- D．EISA
点击查看答案
●Different qu
- ality factors of software can
- be refle
- cte
- d upon user's different points of view，through product running，product modification and product transformation．Of the following properties，which one is connected with product running? (67) ． Ⅰ．Correctness
- B．Ⅱ
- C．Ⅰ，Ⅱ
- D．以上都是
点击查看答案
●
- A&n
- bsp;(68) is a feature of the system or ades
- cription of something the system is capable of
- doing in order to fulfill the system's purpose. (68) A．plan
- B．requirement
- C．document
- D．Design
点击查看答案
●In Internet， (66) used
- as a
- barrier to prevent the spread of viruses． (66) A．modom
- B．firewire
- C．firewall
- D．netcard
点击查看答案
●下面描述正确的是 (65) 。
(65)
- A．数字签名技术用来保证数据在传输过程中的安全性 &n
- bsp; B．数字信封技术用来保证数据在传输过程中的完整性
- C．电子支票只要第二方认证就可以使用
- D．以上都不对
点击查看答案