Question 1

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

Accepted Answer

/etc/exports

Question 2

The ____ zone configuration file contains a PTR record used to identify the loopback adapter.
A) /var/named/named.ca
B) /etc/named.conf
C) /var/named/named.local
D) /etc/named.loop

Accepted Answer

The named.local zone file contains a PTR record used for the loopback adapter, typically with the IP address 127.0.0.1. The named.ca file contains information about the root nameservers, while the named.conf file is the main configuration file for BIND. There is no named.loop file used in traditional BIND configurations.

Question 3

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. _________________________

Accepted Answer

DHCPREQUEST

Question 4

In NTP, stratum ____ consists of atomic devices or GPS clocks.
A) 0
B) 1
C) 2
D) 5

Accepted Answer

Stratum 0 in NTP consists of high-precision timekeeping devices like atomic clocks or GPS clocks, which are used as the reference clocks.

Question 5

The ____ command can be used in the BASH prompt to obtain a Web page from the Apache server.
A) apachect1
B) ab
C) curl
D) webpage

Accepted Answer

The "curl" command is used to transfer data from or to a server, including obtaining a web page from the Apache server. Option A is not a valid command, option B is a command-line tool for benchmarking Apache web servers, and option D is not a valid command. Therefore, the best choice is C.

Question 6

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. _________________________

Accepted Answer

This statement is true. Each computer in NIS belongs to an NIS domain and uses an NIS map for accessing certain information rather than using the local configuration file.

Question 7

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. _________________________

Accepted Answer

port 25

Question 8

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

Accepted Answer

NFS is a protocol for sharing files over a network, while FTP is a protocol for transferring files over a network. NFS is more commonly used in private networks, while FTP is more commonly used in public networks.

Question 9

NetBIOS names can be up to ____ characters long.
A) 15
B) 25
C) 50
D) 100

Accepted Answer

NetBIOS names can be up to 15 characters long. This is because NetBIOS was designed for use on legacy systems with limited resources and shorter naming conventions.

Question 10

____ servers resolve fully qualified domain names to IP addresses for a certain namespace on the Internet.
A) DHCP
B) NTP
C) DNS
D) NIS

Accepted Answer

DNS (Domain Name System) servers resolve fully qualified domain names to IP addresses for a certain namespace on the Internet. DHCP (Dynamic Host Configuration Protocol) servers assign IP addresses to network devices, NTP (Network Time Protocol) servers synchronize time across a network, and NIS (Network Information Service) servers manage network directories and authentication.

Question 11

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.
A) DirectoryIndex index.html
B) DocumentRoot index.html
C) Index index.html
D) UseIndex index.html

Accepted Answer

The DirectoryIndex directive specifies the default file that should be sent to the client if the client requests an HTML document, and index.html is the default file in the document root directory. Therefore, the correct directive to use is DirectoryIndex index.html. The other options listed are not valid Apache httpd.conf directives.

Question 12

The ____ ftp utility command runs a shell on the local computer.
A) ~
B) #
C) !
D) *

Accepted Answer

The "!" (exclamation mark) ftp utility command is used to execute shell commands on the local computer, rather than on the remote server. This can be useful for performing tasks such as navigating directories or manipulating files on the local system while connected to an FTP server. The other options listed ("~", "#", "*") do not correspond to valid ftp utility commands.

Question 13

Apache daemon listens for HTTP requests on port ____.
A) TCP 20
B) TCP 25
C) TCP 80
D) TCP 110

Accepted Answer

Apache daemon listens on port 80 for incoming HTTP requests.

Question 14

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

Accepted Answer

Yes, the Very Secure FTP (VSFTP) daemon is a stand-alone daemon, which means it can run independently without the need for other services or processes.

Question 15

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). _________________________

Accepted Answer

iterative

Question 16

NTP uses port ____.
A) TCP 20
B) TCP 25
C) UDP 69
D) UDP 123

Accepted Answer

NTP (Network Time Protocol) uses UDP (User Datagram Protocol) for time synchronization purposes. The default port number for NTP server is 123, therefore the correct answer is D, UDP 123. TCP 20 and TCP 25 are commonly used for FTP data and SMTP respectively, while UDP 69 is commonly used for TFTP (Trivial File Transfer Protocol).

Question 17

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.
A) upload filename
B) mput filename
C) put filename
D) get filename

Accepted Answer

The "mput" command is used to upload multiple files with wildcard metacharacters to the remote computer from the local computer. The "put" command is used to upload a single file, and "get" command is used to download files from the remote computer to the local computer. "Upload filename" is not a valid ftp command.

Question 18

All DNS servers contain a DNS cache file.

Accepted Answer

All DNS servers contain a DNS cache file which stores recently accessed DNS records to improve performance and reduce network traffic.

Question 19

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.

Accepted Answer

By default, when connecting as "anonymous" to the vsftpd daemon, users are placed in a specific directory for anonymous users, not in the root user's home directory, for security reasons.

Question 20

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

Accepted Answer

By default, the smb.conf file includes settings that automatically share printers and the home directories of users recognized by the system, facilitating file and printer sharing in a network environment.

Quiz 13: Configuring Network Services

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

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

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. _________________________

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

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

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. _________________________

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. _________________________

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

NetBIOS names can be up to ____ characters long.

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

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.

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

Apache daemon listens for HTTP requests on port ____.

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

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). _________________________

NTP uses port ____.

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.

All DNS servers contain a DNS cache file.

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.

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