_____________ is the interface bridging user applications and OS kernel. correct answersSystem calls
The package management tool on CentOS is called apt (Advanced Package Tool). correct answersFalse
An operating system is defined as hardware that converts software into a useful form for appli...
_____________ is the interface bridging user applications and OS kernel. correct answersSystem calls
The package management tool on CentOS is called apt (Advanced Package Tool). correct answersFalse
An operating system is defined as hardware that converts software into a useful form for applications.
correct answersFalse
Which policy below is INCORRECT about this class. correct answersThe exam and quizzes are closed-
book.
Which option below is NOT a feature of Linux. correct answersLinux must run user applications one by
one.
_____________ is the interface bridging computer hardware and OS kernel. correct answersHardware
drivers
CentOS is a Linux distribution compiled with the same source code for Redhat. correct answersTrue
When a user application invokes a system call, the CPU/OS will be working under _______________
correct answersKernel mode
If the late work is accepted by the instructor a 10% late penalty will be applied to the lab grade. Then the
late work must be submitted within the next 2 weeks. correct answersFalse
Which option below is INCORRECT bout monolithic Kernel? correct answersMore modules included in
the kernel can protect the kernel better.
A 8-bit width address bus supports CPU to address a _________ memory. correct answers2^8 bit
, Von Neumann architecture consists of CPU, memory, and I/O devices. correct answersTrue
______ loads Operating System from ________ to memory since computer is powered on. correct
answersBootloader, Hard drive
If the address bus is 8-bit width, the largest memory address CPU can fetch data from is _________.
correct answers2^8-1
Which description below is TRUE about CPU, RAM, and I/O device? correct answersCPU fetches data
from RAM actively (meaning CPU can query data from RAM without RAM's request)
Which one of following runs first since computer is powered on? correct answersBIOS
Which step below is NOT for source code Compilation. correct answersEncoding
______ loads Bootloader from ________ to memeory since computer is powered on. correct
answersBIOS, Hard drive
Which option below is INCORRECT? correct answersJava source code must be compiled to JAVA
bytecode, which is executable on CPU
Which option below dose NOT belong to CPU? correct answersData bus
If the bootloader is unprotected, a hacker can__________ correct answersbypass the user
authentication if (s)he has physical access to the computer.
Which command below can install the Iptables firewall? correct answers#yum install iptables-services
Which description below describes command "# cat test > cmd" correctly correct answersThe content of
the "test" file will be stored on file "cmd".
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