LFCS Network Service Configuration Questions and Answers

Question 1

A system administrator needs to configure a Linux server to act as a caching-only DNS server to speed up name resolution for local clients.
Which package is most commonly installed to provide this service?

Accepted Answer

bind

Answer

dhcpd

Answer

net-tools

Answer

samba

Question 2

You are tasked with setting up a new web server. After installing the Apache HTTP Server package (httpd on RHEL/CentOS, apache2 on Debian/Ubuntu), you create a basic index.html file. Which command should you use to start the web server and ensure it automatically starts on boot?

Accepted Answer

systemctl start httpd && systemctl enable httpd

Answer

service httpd start && chkconfig httpd on

Answer

apachectl start && update-rc.d apache2 defaults

Answer

/etc/init.d/apache2 start && systemctl load apache2

Question 3

A Linux server's clock is drifting significantly. To resolve this, you need to configure it to synchronize with a reliable time source on the network. Which of the following is the modern, default service used on most current Linux distributions like RHEL 8+ and recent Ubuntu versions for time synchronization?

Accepted Answer

chronyd

Answer

ntpd

Answer

timedatectl

Answer

hwclock

Question 4

A system administrator needs to configure a Linux server to act as a caching-only DNS server to speed up name resolution for local clients.
Which package is most commonly installed to provide this service?

Accepted Answer

/etc/netplan/01-netcfg.yaml

Answer

/etc/sysconfig/network-scripts/ifcfg-eth0

Answer

/etc/hostname

Answer

/etc/resolv.conf

Question 5

You are securing a vsftpd (Very Secure FTP Daemon) server and need to enforce the use of SSL/TLS for all connections, including both login and data transfer for local users. Which combination of directives in the `vsftpd.conf` file achieves this?

Accepted Answer

ssl_enable=YES
force_local_logins_ssl=YES
force_local_data_ssl=YES

Answer

ssl_enable=YES

Answer

allow_anon_ssl=YES
force_anon_logins_ssl=YES

Answer

require_ssl_reuse=YES

Question 6

Which of the following commands is used to display the current IP address, subnet mask, and other network interface information on a modern Linux system, replacing the older, now-obsolete `ifconfig` command?

Accepted Answer

ip addr show

Answer

netstat -i

Answer

route -n

Answer

arp -a

A system administrator needs to configure a Linux server to act as a caching-only DNS server to speed up name resolution for local clients.Which package is most commonly installed to provide this service?

A system administrator needs to configure a Linux server to act as a caching-only DNS server to speed up name resolution for local clients.
Which package is most commonly installed to provide this service?