The lines numbered 1-9 in the figure belong to the data bus is _______.
My answer: (from small to large) 1, 4, 6, 9
1. The storage capacity of the following storage devices is () in descending order.
A、
寄存器、缓存、主存、外存
B、
外存、主存、缓存、寄存器
C、
主存、外存、缓存、寄存器
D、
缓存、外存、寄存器、主存
My answer: B
2. In the chain query mode, the device closer to the controller ().
A、
得到总线使用权的机会越多,优先级越高
B、
得到总线使用权的机会越少,优先级越低
C、
得到总线使用权的机会越多,优先级越低
D、
得到总线使用权的机会越少,优先级越高
My answer: A
3. The following storage device speeds are () in descending order.
A、
寄存器、主存、缓存、外存
B、
主存、寄存器、外存、缓存
C、
缓存、寄存器、主存、外存
D、
寄存器、缓存、主存、外存
My answer: D
4. Virtual memory is composed of ().
A、
cache-辅存
B、
主存-cache
C、
主存-辅存
D、
主存-cache-辅存
My answer: C
5. The purpose of increasing cache between main memory and CPU is ().
A、
扩大主存容量
B、
解决CPU与主存之间的速度匹配
C、
提高主存速度
D、
提高主存速度和扩大主存容量
My answer: B
6. Among the three centralized bus rulings, the () method is the most sensitive to circuit failures
A、
链式查询
B、
计数器定时查询
C、
独立请求
D、
都一样
My answer: A
1. In an asynchronous serial transmission system, assuming 100 data frames are transmitted per second, the character format stipulates that it contains 1 start bit, 6 data bits, 1 odd parity bit, and 1 stop bit. Bit, the baud rate is ()bps.
My answer: The
first empty:
900
2. The centralized bus arbitration control is divided into three types
: ______ and ________. My answer: first empty: chain query second empty: counter timing query third empty: independent request method 3. The storage system hierarchy is mainly reflected in the two hierarchical structures of ____ and _____, among which the latter This solves the problem of main memory capacity. My answer: first empty: cache-main memory second empty: main memory-auxiliary memory 4. During the execution of the program, the random access memory RAM (can/cannot) read, (can/can’t) write, read only memory ROM _ (can/not) read, (can/not) write
My answer:
first empty:
available
second empty:
available
third empty:
available
fourth empty:
not available
5. Access time and physics of random access memory RAM address_ (Related/irrelevant). The access time of sequential access memory is related to the physical address _______ (related/irrelevant).
My answer: the
first empty:
irrelevant, the
second empty:
related
6. The RAM is divided into two types: ___ and ______.
My answer:
first empty:
static RAM
second empty:
dynamic RAM
7. In an asynchronous serial transmission system, assuming 100 data frames are transmitted per second, the character format stipulates that it contains 1 start bit and 7 data bits , 1 odd parity bit and 1 stop bit, the bit rate is ()bps.
My answer:
First empty:
700
8. In synchronous communication, ______ (with/without) response signals between devices, and data transmission is carried out under the control of _______.
My answer:
first empty:
no
second empty:
clock signal