linux ch13

Question 1

All DNS servers contain a DNS cache file.

Answer 1

T

Question 2

By default, the smb.conf file shares all printers and home directories for recognized Windows users.

Answer 2

T

Question 3

The Very Secure FTP daemon is a stand-alone daemon.

Answer 3

T

Question 4

The use of NFS is less common than the use of FTP to transfer files on public networks.

Answer 4

T

Question 5

When connecting to the vsftpd daemon using an FTP client utility as the user “anonymous”, you will be placed in the root user’s home directory.

Answer 5

F

Question 6

In the DHCP lease process, halfway through the time period specified by its lease the DHCP client will send a(n) DHCPDISCOVER packet to its DHCP server to renew its IP configuration.

Answer 6

F

Question 7

During the DNS lookup process, if the ISP DNS server has recently resolved the FQDN and placed the result in its local DNS cache, you receive the response immediately (called a(n) recursive query).

Answer 7

F

Question 8

Each computer that participates in NIS belongs to an NIS domain and uses a(n) NIS map for accessing certain information rather than using the local configuration file.

Answer 8

T

Question 9

In NFS, one computer shares a certain directory in the directory tree by placing the name of that directory in the /etc/imports file.

Answer 9

F

Question 10

The Sendmail daemon on Fedora 13 is configured by default to accept e-mail on TCP port 100 and route it to the appropriate user on the Linux system.

Answer 10

F

Question 11

____ servers resolve fully qualified domain names to IP addresses for a certain namespace on the Internet.

Answer 11

DNS

Question 12

The ____ zone configuration file contains a PTR record used to identify the loopback adapter.

Answer 12

3) /var/named/named.local

Question 13

NTP uses port ____.

Answer 13

UDP 123

Question 14

In NTP, stratum ____ consists of atomic devices or GPS clocks.

Answer 14

0

Question 15

Apache daemon listens for HTTP requests on port ____.

Answer 15

TCP 80

Question 16

The ____ httpd.conf directive specifies that the index.html file in the document root directory will be sent to clients who request an HTML document.

Answer 16

DirectoryIndex index.html

Question 17

The ____ command can be used in the BASH prompt to obtain a Web page from the Apache server.

Answer 17

curl

Question 18

NetBIOS names can be up to ____ characters long.

Answer 18

15

Question 19

The ____ ftp utility command uploads the filename from the current directory on the local computer to the current directory on the remote computer, and allows the use of wildcard metacharacters to specify the filename.

Answer 19

mput filename

Question 20

The ____ ftp utility command runs a shell on the local computer.

Answer 20

!

Question 21

Client computers can retrieve e-mail from e-mail servers via ____ or ____.

Answer 21

POP;IMAP

Question 22

When working with Sendmail, you can use the ____ command to test SMTP support.

Answer 22

HELO

Question 23

When working with Sendmail, if you modify the /etc/aliases file, you need to run the ____ command to rebuild the aliases database

Answer 23

newaliases

Question 24

Databases store information in the form of ____, each of which contains ____.

Answer 24

tables; records

Question 25

The ____ SQL statement is used to delete a database.

Answer 25

DROP DATABASE

Question 26

The ____ PostgreSQL command-line utility backs up PostgreSQL database settings.

Answer 26

pg_dump

Question 27

Can the passwd command be used to let NIS clients change their NIS password?

Answer 27

no

Question 28

Is Apache is the world’s most common Web server?

Answer 28

y

Question 29

Is the Washington University FTP daemon (wu-ftpd) used on most Linux systems today?

Answer 29

n

Question 30

Do Web browsers typically have a built-in FTP utility?

Answer 30

y

Question 31

Is Postfix the default e-mail daemon on most Linux systems?

Answer 31

n