SAIR meilleur examen 3X0-103, questions et réponses

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Code d'Examen: 3X0-103
Nom d'Examen: SAIR (Linux Networking (Level 1) )
Questions et réponses: 159 Q&As

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NO.1 For a Class C network, which of the following denotes a valid host address on the 192.168.3.0
network?
A. 192.168.3.255
B. 192.168.3.1
C. 192.168.3.0
D. 192.168.3.256
Answer: B

SAIR   3X0-103   certification 3X0-103   3X0-103   3X0-103 examen

NO.2 Which of the following commands will allow you to view the ARP table when the configured name
server is not functioning? (Choose the best answer.)
A. arp -v
B. arp -a
C. arp -n
D. arp -s
Answer: C

SAIR examen   3X0-103   3X0-103   certification 3X0-103

NO.3 inetd is responsible for waiting for new network requests and authenticating users based on the
contents of the "inetd.conf" file.
A. TRUE
B. FALSE
Answer: B

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NO.4 Which of the following is FALSE concerning TCP, IP, and UDP? (Select the best answer.)
A. Transport Control Protocol (TCP) supports unicast addressing.
B. User Datagram Protocol (UDP) supports unicast addressing.
C. TCP supports multicasting.
D. UDP supports multicasting.
E. Internet Protocol (IP) supports multicasting.
Answer: C

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NO.5 Which of the following is TRUE concerning the Address Resolution Protocol (ARP)?
A. It binds a physical address to a broadcast address.
B. It binds a MAC (Media Access Control) address to a logical address.
C. It binds a logical address to an IP address.
D. It binds a MAC (Media Access Control) address to a physical address.
Answer: B

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NO.6 Which of the following statements is TRUE about the subnet mask?
A. Another name for the subnet mask is the subnet address.
B. In the subnet mask, zeros represent the host ID and ones represent the network ID.
C. In the subnet mask, ones represent the host ID and zeros represent the network ID.
D. The subnet mask is used to aid in name resolution for root name servers.
Answer: B

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NO.7 Telnet was developed as a continuation of what other communications program developed for
ARPANET? (Select the best answer.)
A. rpc
B. tele
C. login
D. ftp
E. mutt
F. None of the above
Answer: D

SAIR   3X0-103   certification 3X0-103   3X0-103

NO.8 Assume that a software company has a subnet address 192.168.1.0/255.255.255.0. How many
possible hosts can this subnet support, and what is the network address for the subnet?
A. 64; 192.168.1.255
B. 254; 192.168.1.0
C. 255; 192.168.1.0
D. 256; 192.168.1.255
E. 128; 192.168.1.1
Answer: B

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NO.9 Which path accurately depicts a three-way handshake between Network X and Network Y for
establishing a TCP connection? (Select the best answer.)
A. X sends SYN to Y; Y sends SYN to X; X sends ACK to Y
B. X sends SYN to Y; Y sends two SYNs to X; X sends ACK to Y
C. X sends ACK to Y; Y sends SYN to X ; X sends ACK to Y
D. X sends SYN to Y; Y sends ACK to X ; X sends ACK to Y
E. X sends ACK to Y; Y sends SYN and ACK to X; X sends ACK to Y
Answer: D

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NO.10 Which of the following can tunneling be used for?
A. It can connect two IPX networks separated by some different network.
B. It can connect two IPv4 networks separated by some different network.
C. It can provide mobile IP support and amateur radio support.
D. It can connect two IPv6 networks separated by some different network.
E. All of the above.
Answer: E

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NO.11 Which of the following host IP addresses are on networks normally reserved for intranets? (Choose
three.)
A. 10.1.220.1
B. 12.1.2.4
C. 172.16.0.30
D. 192.168.0.18
E. 187.10.30.200
Answer: ACD

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NO.12 Which of the following are TRUE about buffer size? (Choose two.)
A. A large buffer can lead to wasted system memory.
B. A small buffer can lead to slower data transfer lines.
C. Having a small buffer will free system memory, allocating fewer registers.
D. The larger the buffer, the faster the transfer rate, reducing time arrival jitter.
Answer: AB

SAIR   3X0-103 examen   3X0-103   3X0-103 examen   3X0-103 examen

NO.13 You wish to communicate with hosts on your wide-area network. Which of the following is the exact
sequence of commands used to manually configure an Ethernet interface, assuming driver modules
are not loaded?
A. lsmod, insmod, ifconfig
B. insmod, ifconfig, route
C. lsmod, rmmod, insmod, ifconfig
D. ifconfig, route
Answer: B

SAIR examen   3X0-103 examen   3X0-103   3X0-103 examen

NO.14 Typical implementations of ping use the _____ to send echo requests to other hosts.
A. Internet Protocol (IP)
B. Internet Control Message Protocol (ICMP)
C. User Datagram Protocol (UDP)
D. Transport Control Protocol (TCP)
Answer: B

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NO.15 Which Resource Record allows the redirecting of mail to another host, assuming the correct
accounts exist?
A. TXT
B. PTR
C. SOA
D. MAIL
E. MX
Answer: E

SAIR   3X0-103 examen   3X0-103   3X0-103 examen

NO.16 Which of the following can you do with the "ping" command? (Choose two.)
A. Determine if a remote host can be contacted.
B. Create and modify (n)x-u NIS network maps.
C. View the MAC address of a given host.
D. Display the route along which an IP packet travels.
Answer: AD

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NO.17 A default policy of DENY and ACCEPT may be implemented for a system's ipchains. Which of the
following options will change the default input policy to DENY?
A. ipchains -a input DENY
B. ipchains -a output DENY
C. ipchains -P input DENY
D. ipchains -all input DENY
E. ipchains -input DENY
Answer: C

SAIR   3X0-103 examen   3X0-103   3X0-103

NO.18 Because of flow control, UDP will generally lead to network congestion, while TCP helps prevent
congestion.
A. True
B. False
Answer: A

SAIR   certification 3X0-103   3X0-103 examen   3X0-103

NO.19 If a machine has an IP address of 192.168.1.61 and the netmask is 255.255.255.0, what is its subnet
address?
A. 192.0.0.0
B. 192.168.0.0
C. 192.168.1.0
D. 0.0.0.61
Answer: C

SAIR   3X0-103 examen   3X0-103

NO.20 Which of the following subnet masks is usually associated with a Class A IP address?
A. 255.255.0.0
B. 255.255.255.0
C. 255.0.0.0
D. 255.255.255.255
Answer: C

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Code d'Examen: 3X0-103
Nom d'Examen: SAIR (Linux Networking (Level 1) )
Questions et réponses: 159 Q&As

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NO.1 Which of the following subnet masks is usually associated with a Class A IP address?
A. 255.255.0.0
B. 255.255.255.0
C. 255.0.0.0
D. 255.255.255.255
Answer: C

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NO.2 Which of the following is FALSE concerning TCP, IP, and UDP? (Select the best answer.)
A. Transport Control Protocol (TCP) supports unicast addressing.
B. User Datagram Protocol (UDP) supports unicast addressing.
C. TCP supports multicasting.
D. UDP supports multicasting.
E. Internet Protocol (IP) supports multicasting.
Answer: C

SAIR examen   3X0-103   3X0-103

NO.3 Assume that a software company has a subnet address 192.168.1.0/255.255.255.0. How many
possible hosts can this subnet support, and what is the network address for the subnet?
A. 64; 192.168.1.255
B. 254; 192.168.1.0
C. 255; 192.168.1.0
D. 256; 192.168.1.255
E. 128; 192.168.1.1
Answer: B

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NO.4 Which of the following host IP addresses are on networks normally reserved for intranets? (Choose
three.)
A. 10.1.220.1
B. 12.1.2.4
C. 172.16.0.30
D. 192.168.0.18
E. 187.10.30.200
Answer: ACD

SAIR   3X0-103   3X0-103 examen   3X0-103 examen   3X0-103

NO.5 Which of the following can you do with the "ping" command? (Choose two.)
A. Determine if a remote host can be contacted.
B. Create and modify (n)x-u NIS network maps.
C. View the MAC address of a given host.
D. Display the route along which an IP packet travels.
Answer: AD

certification SAIR   3X0-103   3X0-103 examen

NO.6 Because of flow control, UDP will generally lead to network congestion, while TCP helps prevent
congestion.
A. True
B. False
Answer: A

SAIR examen   3X0-103   3X0-103 examen   3X0-103 examen

NO.7 Typical implementations of ping use the _____ to send echo requests to other hosts.
A. Internet Protocol (IP)
B. Internet Control Message Protocol (ICMP)
C. User Datagram Protocol (UDP)
D. Transport Control Protocol (TCP)
Answer: B

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NO.8 If a machine has an IP address of 192.168.1.61 and the netmask is 255.255.255.0, what is its subnet
address?
A. 192.0.0.0
B. 192.168.0.0
C. 192.168.1.0
D. 0.0.0.61
Answer: C

SAIR   certification 3X0-103   certification 3X0-103

NO.9 Which Resource Record allows the redirecting of mail to another host, assuming the correct
accounts exist?
A. TXT
B. PTR
C. SOA
D. MAIL
E. MX
Answer: E

SAIR   3X0-103   3X0-103   3X0-103   3X0-103   certification 3X0-103

NO.10 Which of the following is TRUE concerning the Address Resolution Protocol (ARP)?
A. It binds a physical address to a broadcast address.
B. It binds a MAC (Media Access Control) address to a logical address.
C. It binds a logical address to an IP address.
D. It binds a MAC (Media Access Control) address to a physical address.
Answer: B

SAIR examen   3X0-103   3X0-103   3X0-103   3X0-103

NO.11 Which of the following statements is TRUE about the subnet mask?
A. Another name for the subnet mask is the subnet address.
B. In the subnet mask, zeros represent the host ID and ones represent the network ID.
C. In the subnet mask, ones represent the host ID and zeros represent the network ID.
D. The subnet mask is used to aid in name resolution for root name servers.
Answer: B

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NO.12 For a Class C network, which of the following denotes a valid host address on the 192.168.3.0
network?
A. 192.168.3.255
B. 192.168.3.1
C. 192.168.3.0
D. 192.168.3.256
Answer: B

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NO.13 Telnet was developed as a continuation of what other communications program developed for
ARPANET? (Select the best answer.)
A. rpc
B. tele
C. login
D. ftp
E. mutt
F. None of the above
Answer: D

certification SAIR   3X0-103 examen   3X0-103

NO.14 Which of the following commands will allow you to view the ARP table when the configured name
server is not functioning? (Choose the best answer.)
A. arp -v
B. arp -a
C. arp -n
D. arp -s
Answer: C

SAIR   3X0-103   certification 3X0-103   3X0-103

NO.15 Which of the following are TRUE about buffer size? (Choose two.)
A. A large buffer can lead to wasted system memory.
B. A small buffer can lead to slower data transfer lines.
C. Having a small buffer will free system memory, allocating fewer registers.
D. The larger the buffer, the faster the transfer rate, reducing time arrival jitter.
Answer: AB

SAIR   3X0-103   3X0-103   certification 3X0-103   3X0-103

NO.16 A default policy of DENY and ACCEPT may be implemented for a system's ipchains. Which of the
following options will change the default input policy to DENY?
A. ipchains -a input DENY
B. ipchains -a output DENY
C. ipchains -P input DENY
D. ipchains -all input DENY
E. ipchains -input DENY
Answer: C

SAIR   3X0-103   3X0-103 examen

NO.17 You wish to communicate with hosts on your wide-area network. Which of the following is the exact
sequence of commands used to manually configure an Ethernet interface, assuming driver modules
are not loaded?
A. lsmod, insmod, ifconfig
B. insmod, ifconfig, route
C. lsmod, rmmod, insmod, ifconfig
D. ifconfig, route
Answer: B

SAIR examen   3X0-103 examen   3X0-103   3X0-103

NO.18 inetd is responsible for waiting for new network requests and authenticating users based on the
contents of the "inetd.conf" file.
A. TRUE
B. FALSE
Answer: B

SAIR   3X0-103   3X0-103 examen   certification 3X0-103

NO.19 Which path accurately depicts a three-way handshake between Network X and Network Y for
establishing a TCP connection? (Select the best answer.)
A. X sends SYN to Y; Y sends SYN to X; X sends ACK to Y
B. X sends SYN to Y; Y sends two SYNs to X; X sends ACK to Y
C. X sends ACK to Y; Y sends SYN to X ; X sends ACK to Y
D. X sends SYN to Y; Y sends ACK to X ; X sends ACK to Y
E. X sends ACK to Y; Y sends SYN and ACK to X; X sends ACK to Y
Answer: D

SAIR   3X0-103   3X0-103

NO.20 Which of the following can tunneling be used for?
A. It can connect two IPX networks separated by some different network.
B. It can connect two IPv4 networks separated by some different network.
C. It can provide mobile IP support and amateur radio support.
D. It can connect two IPv6 networks separated by some different network.
E. All of the above.
Answer: E

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Le meilleur matériel de formation examen SAIR 3X0-102 3X0-103 3X0-202

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Code d'Examen: 3X0-102

Nom d'Examen: SAIR (Linux System Administration (Level 1) )

Questions et réponses: 122 Q&As

Code d'Examen: 3X0-103

Nom d'Examen: SAIR (Linux Networking (Level 1) )

Questions et réponses: 159 Q&As

Code d'Examen: 3X0-202

Nom d'Examen: SAIR (Apache Webserver (Level 2))

Questions et réponses: 90 Q&As

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NO.1 Jake has the text below in his httpd conf file. He does NOT have mod_mime_magic compiled as part
of
the Apache server configuration. Which of the following are TRUE concerning this information? (Choose
two.)
LoadModule vhost_alias_module modules/mod_vhost _alias.so
# LoadModule env_module modules/mod_env.so
# LoadModule agent_log_module modules/mod_log_agent.so
# LoadModule mime_magic_module modules/mod_mime_magic.so
# LoadModule mime_module modules/mod_mime_magic.s
<IFModeule mod_mime_magic.c>
MIOMEMagicFile share/magic
</ifModule>
A. The MIMEMagicFile directive will be processed.
B. The MIMEMagicFile directive will NOT be processed.
C. The server will NOT be able to use hints in share/magic to determine file types.
D. The server will be able to use hints in share/magic to determine file types.
Answer: B, C

SAIR   certification 3X0-202   3X0-202 examen

NO.2 Which of the following can be used send to used to send a cookie to the http client? (Choose two.)
A. XMLScript
B. Static HTM
C. Java Script
D. CGI scripts
E. GIFScript
Answer: C, D

SAIR   certification 3X0-202   certification 3X0-202   3X0-202

NO.3 Which of the following best explains the function of the KeepAlive directive in Apache 1.1?
A. It defines the length of time Apache will wait before spawning additional processes.
B. It constantly checks on the Apache service and reports via syslogd if there is a server problem.
C. It makes a backup by spawning clones of itself in case the server goes down.
D. It defined how long a server process can keep a connection before shutting down.
E. It tells Apache how long to wait before going into the zombie process state.
Answer: D

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NO.4 Which of the following HTTP headers will direct a browser to www.site.com after
waiting five seconds?
A. Rewrite 5; URL = http://www.site.com/
B. Location 5; URL = http://www.site.com/
C. Refresh 5; URL = http://www.site.com/
D. Reload http://www.site.com/ -t 5
E. Direct -t 5 http://www.site.com/
Answer: C

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NO.5 Ralf, a user, wishes to upgrade his existing version of Apache by including mod_ssl as a loadable
module.
Assuming that the shared object for mod_ssl is libssl. So, that mod_ssl is located in "/prefix/modules/,"
which of the following must be present in his httpd, conf file?
A. LoadModule mod_ssl modules/libssl.so
B. Addmodule mod_ssl modules/libssl.so
C. LoadModule /prefix/modules/libssl.so mod_ssl
D. AddModule /prefix/modules/libssl.so mod_ssl
Answer: A

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NO.6 Cookies can be used by Apache to create a click stream log of user activity.
However, for the cookies to work, Apache must be compiled with the _______
module, then the ______ directive must be added to the httpd.conf file.
A. mod_usertrack; Cookie Tracking on
B. mod_cookies; Cookies on
C. mod_cookietracking; cookie Tracking on
D. mod_cookielog; Cookielogging on
E. mod_userlog, cookielogging on
Answer: A

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NO.7 Consider the file "test.html". Which of the following best describes what code does?
<html>
<from>
<INPUT TYPE=" button" VALUE="set cookie"
onClick = "document. Cookie =`first_name=Fred`;">
<INPUT TYPE = "button" VALUE = "display cookie"
onClick = "alert (document.cokkie);">
</from>
</html>
A. When the user clicks on "set cookie," it prompts the user for value. Once the value is entered, it can be
displayed using the "display cookie" button.
B. When the user clicks on "set cookie," the first_name cookie is set to "Fred." The first_name cookie can
be
displayed by clicking the "display cookie" button.
C. When the user first loads "test.html," first_name is automatically set to "Fred." The value of first_name
can
be seen with the "display cookie" button. The first_name cookie can be reset to empty ("") by clicking the
"set
cookie" button.
D. When the user clicks on the "set cookie" button, a new HTML page is loaded that displays the word
"Fred".
When the user clicks on the "display cookie" button, it alerts the user that it has been deleted.
Answer: B

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NO.8 Tom would like to group all of his CGI scripts to /lib/cgi-bin/. In order to do this, he needs to use the
ScriptAlias directive in the httpd.conf file of his Apache server. What modules need to be compiled in
order for this to work? (Choose two.)
A. mod_cgi.c or any module that supports the common gateway interface
B. mod_bin.c
C. mod_negotiation.c or any module that does protocol negotiation
D. mod_alias.c
E. mod_script.c or any module that does script parsing
Answer: A, D

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NO.9 One security exploit with Apache is to include a command in a script that lets the scripts execute a
command found in one of its variables. For example, a script might contain the who command and
display a list users logged into the server. Which of the following, if included in a CGI script, will run a
command with the appropriate permissions?
A. declare
B. fork
C. export
D. eval
E. eacho
Answer: D

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NO.10 An administrator needs to set the permissions an Apache Web server to maximize security, while still
allowing for full functionality. Which of the following permissions are most appropriate for Apache
configuration files and Apache executables, respectively?
A. 755, 000
B. 755, 111
C. 511, 755
D. 777, 555
E. 755, 511
Answer: E

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NO.11 Which of the following best explains why Apache Web servers are able to handles multiple requests?
A. In addition to port 80, Apache opens ports 8080,8000, and others to handle the additional requests.
B. Apache is able to spawn child processes that handle requests before they die.
C. Apache uses the renice service to load balance between different system daemons.
D. Upon reaching a set number of requests, Apache uses a raw socket to adjust a system's bandwidth to
handle
the additional requests.
Answer: B

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NO.12 Liz has completed an Apache installation on her computer. She did not encounter any errors. Which of
the following can she use to see Apache's default index? (Choose two.)
A. http://localserver
B. http://localhost
C. http://index
D. http://192.268.0.0
E. http://127.0.0.1
Answer: B, E

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NO.13 Which of the following are TRUE regarding contains in httpd.com? (Choose two.)
A. Containers consist of a Paired set of delimiters.
B. If two containers contradict, the first is applied.
C. Containers may only be applied globally.
D. Containers allow individual virtual hosts to have their own settings.
Answer: A, D

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NO.14 Which of the following is a requirement for IP-based virtual hosting?
A. Separate network devices, each with its own I address.
B. Separate IP addresses for each virtual host
C. Separate configuration files for each virtual host.
D. Separate IPAlias directives in the httpd.conf file for each virtual host.
Answer: B

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NO.15 If a user has already defined a log format called "common, "which of the following directives will
ALWAYS make Apache log requests to "/var/log/apache/access_log" using the " common" format?
A. TransferLog /var/log/apache/access_log format=common
B. TransferLog /var/log/apache/access_log common
C. CustomLog /var/log/apache/access_log format=common
D. CustomLog /var/log/apache/access_log common
Answer: D

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NO.16 The block of code below is found in the http conf file. Under what conditions would this block of code
execute?
<If Module !PHP/4.0>
...
</If Module>
A. If PHP/4.0 is NOT compiled or loaded into Apache when the block of code is called
B. If PHP/4.0 is NOT compiled or loaded in the module's shared library when the block of code is called
C. If PHP/4.0 is compiled or loaded into Apache when the block of code is called
D. If PHP/4.0 is compiled or loaded in the module's shared library when the block of code is called
Answer: A

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NO.17 Which of the following scenarios most accurately describes the Apache initialization sequence?
A. Apache spawns one child process each second until MaxSpareServer is satisfied or MaxClients is
reached.
B. Apache spawns one child, then two, then four, and up to 32 processes per seconds until MaxClients is
reached or Minspare Servers is satisfied.
C. Apache spawns one process then continues to double the number of processes spawned each second
indefinitely until MaxClients is reached or MinSpareServers is satisfied.
D. Apache spawns the needed number of child processes dependent on the incoming requests until
MaxClients
is reached or MinSpareServer is satisfied. For example, if three requests come in, Apache would spawn
three
processes, and soon.
Answer: B

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NO.18 The system administrator has configured Apache to write its log files via the system logging daemon.
When Apache write its log files to syslog, it will run with the permissions of which user?
A. Always as root
B. Always as nobody
C. Always as webuser
D. Always as the owner of the http process
E. Always as the owner of the syslogd process
Answer: B

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NO.19 How does Apache enable CGI scripts? (Choose two.)
A. It links source pages to the appropriate client compiler.
B. It implements suid and makes the script excitable.
C. It defines content types based on the extension.
D. It references directories that contain the scripts.
Answer: C, D

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NO.20 Which of the following represents a security concern of programming CGI scripts using the C
programming language?
A. C programs must be run with setuid root.
B. If the program receives more data than the amount of memory it has allocated, a buffer overflow can
cause
the program to exit to a shell on the server.
C. Many early C compile lack the ability to dynamically alter file permissions, which results in many C
program running with root permissions.
D. CGI script written in C compile at runtime on the client system, which makes the client vulnerable.
E. If the server and client do not have identical compiler versions, the lesser compiler is used, which may
have
known exploits.
Answer: B

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