- AN,when a point-to-point su
- bnet is used,an important design issue is the rou
- cer interconnection (74) . (74) A.topology
- B.computer
- C.service
- D.lines
- a sequence of letters and digits,the first character must
- be a letter. (75) A.An identifier
- B.A string
- C.An array
- D.program
- atements descri
- be(s)the properties of a purely segmented memory system? (73) . Ⅰ.It suffers from internal fragmentation Ⅱ.It permits implementation of virtual memory Ⅲ.It divides memory
- B.Ⅲ only
- C.Ⅱ only
- D.Ⅰ andⅢ
- ase the num
- ber of pro
- cesses sharing the CPU? (72) . (72) A.Interrupt
- B.Sche
- duler
- C.Working Set
- D.Swapping
- A traditional kernel provides all the functions for applications.The kernel (70) memory,I/O devices and parcels out processor time. The kernel also supports security and fault (71) ,which is the ability to recove
- B.use
- C.apply
- D.applied (68) A.earth
- B.bottom
- C.table
- D.surface (69) A.graphics
- B.data
- C.text
- D.image (70) A.manages
- al varia
- bles X=Y=1,The value of X V Y(logi
- cal a
- ddition)is (66) . (66) A.8
- B.6
- C.4
- D.1
- A.虚电路与线路交换没有实质不同 &n
- bsp; B.在通信的两个站点间只能建立一条虚电路
- C.虚电路的各个节点不需要为每个分组作路径选择
- D.虚电路在传送数据前必须建立起专用的通信线路
- A.129.9.255.18 &n
- bsp; B.127.21.19.109
- C.192.5.91.256
- D.220.103.256.56
- A.标志寄存器&n
- bsp; B.指令寄存器
- C.指令邮件服务器
- D.程序计数器 (63) A.运算器 B.控制器
- C.存储器 D.I/O接口
- anet服务器中,&n
- bsp;(60) 作为WWW服务的本地缓冲区,将:Intranet用户从Internet 中访问过的主页或文件的副本存放其中,用户下一次访问时可以直接从中取出,提高了用户的访问速度。 (60) A.WWW服务器
- B.数据库服务器
- C.电子邮件服务器
- D.代理服务器