Verified 102-500 dumps Q&As - 2024 Latest 102-500 Download [Q100-Q121] : Valid Premium Exam : http://premium.validexam.com

NEW QUESTION 100
Which bash option will prevent you from overwriting a file with a “>”?

set -o safe

set -o noglob

set -o noclobber

set -o append

set -o nooverwrite

NEW QUESTION 101
Which of the following commands will help identify a broken router between the local and the remote machine?

ps

netstat

nslookup

ifconfig

traceroute

NEW QUESTION 102
Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?

tcpd

inetd

fingerd

mountd

xinetd

NEW QUESTION 103
Why is the xhost program considered dangerous to use?

It makes it difficult to uniquely identify a computer on the network.

It allows easy access to your X server by other users.

It logs sensitive information to syslog.

It makes your computer share network resources without any authentication.

It is a graphical DNS tool with known exploits.

NEW QUESTION 104
Which of the following protocols is designed to access the video card output of a virtual machine?

KDE

X11

Xfce

SPICE

XDMCP

NEW QUESTION 105
To prevent a specific user from scheduling tasks with at, what should the administrator do?

Add the specific user to /etc/at.allow file.

Add the specific user to [deny] section in the /etc/atd.conf file.

Add the specific user to /etc/at.deny file.

Add the specific user to nojobs group.

Run the following: atd –deny [user].

NEW QUESTION 106
Given the following routing table:

How would an outgoing packet to the destination 192.168.2.150 be handled?

It would be passed to the default router 192.168.178.1 on wlan0.

It would be directly transmitted on the device eth0.

It would be passed to the default router 255.255.255.0 on eth0.

It would be directly transmitted on the device wlan0.

It would be passed to the router 192.168.1.1 on eth0.

NEW QUESTION 107
Which command will set the local machine’s timezone to UTC?

cat UTC > /etc/timezone

ln -s /usr/share/zoneinfo/UTC /etc/localtime

date –timezone=UTC

mv /usr/timezone/UTC /etc

NEW QUESTION 108
FILL BLANK
What is the top-level directory which contains the configuration files for CUPS? (Specify the full path to the directory.)

NEW QUESTION 109
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)

NEW QUESTION 110
Which of the following options in the chrony configuration file define remote time sources?
(Choose two.)

source

clock

remote

pool

server

NEW QUESTION 111
What command is used to hold keys during a login session to be used for automatic authentication while logging in to other machines using ssh?

sshd

ssh-agent

ssh-keygen

ssh-add

NEW QUESTION 112
What is the main difference between the batch and at commands?

The batch command will run multiple times.The at command will only run once.

The batch command will run when system load is low. The at command runs at a specific time.

The at command reads commands from standard input. The batch command requires a command line argument.

The at command e-mails results to the user. The batch command logs results to syslog.

NEW QUESTION 113
Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)

NEW QUESTION 114
Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes?

core

edquota

quota

ulimit

ktrace

NEW QUESTION 115
Which of the following looks like a correct entry in the /etc/hosts file?

localhost 127.0.0.1 localhost.localdomain

localhost.localdomain localhost 127.0.0.1

localhost localhost.localdomain 127.0.0.1

127.0.0.1 localhost.localdomain localhost

localhost.localdomain 127.0.0.1 localhost

NEW QUESTION 116
What is the difference between the commands test -e path and test -f path?

They are equivalent options with the same behaviour.

The -f option tests for a regular file. The -e option tests for an empty file.

Both options check the existence of the path. The -f option also confirms that it is a regular file.

The -f option tests for a regular file. The -e option tests for an executable file.

NEW QUESTION 117
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

Without additional configuration, no users may have user specific crontabs.

Without additional configuration, all users may have user specific crontabs.

The cron daemon will refuse to start and report missing files in the system’s logfile.

When a user creates a user specific crontab the system administrator must approve it explicitly.

NEW QUESTION 118
What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

NEW QUESTION 119
The system’s timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)

NEW QUESTION 120
If an alias ls exists, which of the following commands updates the alias to point to the command ls
-l instead of the alias’s current target?

set ls=’ls -l’

alias ls=’ls -l’

alias –force ls=’ls -l’

alias –update ls ls=’ls -l’

realias ls=’ls -l’

NEW QUESTION 121
Depending on a system’s configuration, which of the following files can be used to enable and disable network services running on this host?

/etc/profile

/etc/xinetd.conf

/etc/ports

/et/host.conf

/etc/host.conf