Module 13

Question 1

Which one is NOT a common cloud architecture?

• IaaS
• PaaS
• SaaS
• TaaS

Answer 1

• TaaS

Question 2

What port is used by the Network Time Protocol (NTP) for communication?

• TCP 20
• TCP 25
• UDP 69
• UDP 123

Answer 2

• UDP 123

Question 3

Docker uses _________ technology.

• IOT
• Redundancy
• Virtualization
• Container

Answer 3

• Container

Question 4

The Apache daemon listens for HTTP requests on what port by default?

• TCP 20
• TCP 25
• TCP 80
• CTP 110

Answer 4

• TCP 80

Question 5

Where is the default document root directory for the Apache web server?

• /usr/local/html
• /var/www/html​
• /usr/share/local/html
• /var/html

Answer 5

• /var/www/html​

Question 6

What FTP command runs a shell on the local computer?

• ~
• #
• !
• *

Answer 6

• !

Question 7

What kind of servers resolve fully qualified domain names to IP addresses for a certain namespace on the Internet?

• DHCP
• NTP
• DNS
• NIS

Answer 7

• DNS

Question 8

When working with Sendmail, what command can be used to test SMTP support?

• EHLO
• telnet
• HELO
• smtp

Answer 8

• HELO

Question 9

Which command below can be used at a BASH command prompt to obtain a web page?

• apachect1
• ab
• curl
• webpage

Answer 9

• curl

Question 10

What directive below in Apache’s httpd.conf file specifies that the index.html file in the document root directory will be sent to
clients who request an HTML document?

• DirectoryIndex index.html
• DocumentRoot index.html
• Index index.html
• UseIndex index.html

Answer 10

• DirectoryIndex index.html

Question 11

What must you do to transform your computer into a DNS server? (Choose all that apply.)

• Create zone files.
• Create resource records for DNS lookups.
• Create NIS maps.
• Run the name daemon (named).

Answer 11

• Create zone files.
• Create resource records for DNS lookups.
• Run the name daemon (named).

Question 12

Which command can be used to list containers that are currently running on the operating system only?

• docker ps
• docker ps -a
• docker run
• docker exec

Answer 12

• docker ps

Question 13

The lines within the Apache configuration file that modify the functionality of the Apache are called directives.

• True
• False

Answer 13

• True

Question 14

Which DNS resource record is an alias to other records?

• A
• AAAA
• CNAME
• NS

Answer 14

• CNAME

Question 15

You can purchase object storage from a cloud provider to provide persistent filesystem-based storage.

• True
• False

Answer 15

• False

Question 16

DHCP clients send a DHCPREQUEST packet when they need to renew IP configuration.

• True
• False

Answer 16

• True

Question 17

Which command can you use to synchronize ntpd with an NTP time source?

• ntp
• ntpquery
• ntpdate
• hwclock

Answer 17

• ntpdate

Question 18

Which of the following can be used to create a database within PostgreSQL? (Choose all that apply.)

• the CREATE DATABASE statement within the PostgreSQL utility.
• the ADD DATABASE statement within the PostgreSQL utility.
• the adddb command.
• the createdb command.

Answer 18

• the CREATE DATABASE statement within the PostgreSQL utility.
• the createdb command.

Question 19

Which term is used to describe the process of pushing new versions of a Web app to a cloud provider for testing?

• IaC
• Build automation
• CD
• Infrastructure automation

Answer 19

• CD

Question 20

Which of the following must you perform to share a directory using NFS? (Choose all that apply.)

• Edit the /etc/exports file.
• Mount the directory to the /etc/exports directory using the mount command.
• Run the exportfs –a command.
• Start or restart the NFS daemons.

Answer 20

• Edit the /etc/exports file.
• Run the exportfs –a command.
• Start or restart the NFS daemons.