Answer:
System calls = 500000
Explanation:
Instructions that a computer can execute = 1 billion instructions/sec
Instructions that a system call takes including the trap and context switching = 1000 instructions
When half of the CPU time is on application, n system calls can be executed in 1 second.
Therefore we'll get an equation as following.
1000 * n = 0.5 * 1000000000
n = 0.5 * 1000000000 / 1000
n = 500000
System calls = 500000
Answer:
Explanation:
I am attaching the table as an image with updated table containing required information for the following WAN technologies.
T1/DS1 => Digital Signal 1 (T-Carrier 1),
T3/DS3 => Digital Signal 3 (T-Carrier 3),
OC3 (SONET) => Optical Carrier 3 (Synchronous Optical Networking),
Frame Relay,
ATM => Asynchronous Transfer Mode,
MPLS => Multi-protocol Label Switching,
EPL => Ethernet Private Line.
Although you have mentioned most of the information yourself, there were some wrong data in it. So I have updated them with correct information in the attached table.
Answer: Buffered
Explanation: Buffered memory is the memory contains registers between the modules of dynamic random access memory(DRAM).It is also known as registered memory. The purpose of using buffered memory to increase the stability and decrease the electrical load.
Other options are incorrect because ECC(error correcting code)memory is for correction and detection of incorrect data, non- parity memory is that don't utilize ECC module and multi-channel used for the increment in the rate of transmission between memory controller and DRAM.
Thus,the correct option is option buffered memory because of serial communication pattern with memory controller and parallel communication technique with chips .
