Linux user mode - Study guides, Class notes & Summaries

CNET 157 FINAL EXAM ACTUAL QUESTIONS AND ANSWERS WITH COMPLETE SOLUTION Almost immediately after a server migration project, employees are complaining that they can't reach the Internet. You sit down at a machine and try to ping a well-known website, which fails. You then try to ping a known public IP address, which succeeds. What is most likely the problem? Ans- DNS settings are incorrect. What does the ping message "Destination host unreachable" message mean? Ans- An ARP reply wa...

the graphical environment may be disabled and can be different between each distribution. correct answers . Why do many administrators choose to use a command line interface on a Linux server? It can run without a graphical user interface and can also run multiple shell sessions at the same time correct answers . What makes Linux different from many other operating systems? command line interface correct answers What is a shell? 1.1.2 Shell facts correct answers What are the basic diffe...

_____________ 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 answersL...

The user installed Trojan horse malware. A user used an administrator account to download and install a software application. After the user launched the .exe extension installer file, the user experienced frequent crashes, slow computer performance, and strange services running when turning on the computer. What most likely happened to cause these issues? A worm A security operations center (SOC) analyst investigates the propagation of a memory-resident virus across the network and notices a...

AZ-104 RENEWAL EXAM 270 PRACTICE QUESTIONS AND 100% CORRECT ANSWERS QUESTION 1 You have an Azure subscription named Subscription1. You deploy a Linux virtual machine named VM1 to Subscription1. You need to monitor the metrics and the logs of VM1. What should you use? A. Azure HDInsight B. Linux Diagnostic Extension (LAD) 3.0 C. the AzurePerformanceDiagnostics extension D. Azure Analysis Services --CORRECT ANSWER-- B QUESTION 2 You plan to deploy three Azure virtual machines named VM...

Linux Pro Practice Cert According to the command help, which switch can you use with the killall command to kill a process group instead of just a process? - -g Use -g with the killall command to kill a process group. To find the correct switch to use, type: killall -h or killall --help What does the -M switch do with the useradd command? - Prevents the home directory from being created regardless of system settings. Entering useradd -h or useradd --help shows you that the -M swit...

Study Guide for CCTC Exam 1.1 Describe common shells - CORRECT ANSWER-- Bash: default shell for most linux distributions; sh-compatible; unlimited command history - Tcsh/Csh: C shell; interactive login shell; - Ksh: Korn shell; interactive command language - Zsh: designed to be interactive; includes many indexes not in other shells (variable, function, key) - fish: user friendly shell; web based configuration; auto suggestion 1.2 common shell modes - CORRECT ANSWER-$ normal user promp...

A new Linux user selected the Live option upon installation. He then created a holiday schedule and saved it in the home directory before turning off the computer. The next day he turned the computer on and could not find the file. What may be the reason? - The user chose Live mode, which doesn't retain its state What does the shebang do? - Direct a script to a terminal Bash works in both windows and linux natively? - False An employee in your company submitted a support ticket regardin...

In what way is an operating system like a government? - Answer-It creates an environment within which other programs can do useful work. A _____ is an example of a systems program. - Answer-command interpreter ____ operating systems are designed primarily to maximize resource utilization. - Answer-Mainframe If a program terminates abnormally, a dump of memory may be examined by a ____ to determine the cause of the problem. - Answer-debugger A message-passing model is ____. - Answer-easier ...

What command would you execute to view the default systemd target / runlevel? systemctl get-default What command would you execute to set the default systemd target to the functional equivalent of runlevel 3? systemctl set-default multi-user What command would you execute to set the default systemd target to the functional equivalent of runlevel 5? systemctl set-default t When using the "systemctl" utility, what is the default systemd type if omitted? service What would y...