Question 1

What are the two golden rules that should guide you during any troubleshooting process? Describe each rule.

Accepted Answer

Prioritize problems-If you need to solve

Question 2

A room where you lock important computers, such as Linux servers, and to which only Linux administrators or trusted users have key access is commonly called a(n) server closet. _________________________

Accepted Answer

A) True 
 B)False

Question 3

Almost all hardware problems are the result of damaged hardware.

Accepted Answer

A) True 
 B)False

Question 4

By default, sar commands are scheduled using the cron daemon to run every ____ minutes in Fedora 13.

Accepted Answer

A)  two 
B)  five 
C)  ten 
D)  thirty 
A)  two 
B)  five 
C)  ten 
D)  thirty

Question 5

How can netfilter/iptables be used to create a firewall service?

Accepted Answer

Netfilter/iptables discards certain netw

Question 6

Running background processes using the ____ command allows you to exit your command-line shell without ending any background processes.

Accepted Answer

A)  continue 
B)  noshell 
C)  nokill 
D)  nohup 
A)  continue 
B)  noshell 
C)  nokill 
D)  nohup

Question 7

When performance issues arise, you can compare the output of performance utilities to the ____________________ values found in the system log book.

Accepted Answer

The answer of When performance issues arise, you can compare...

Question 8

To see what network services are running on your network, you can run the ____ command.

Accepted Answer

A)  nmap 
B)  map 
C)  networkmap 
D)  nm 
A)  nmap 
B)  map 
C)  networkmap 
D)  nm

Question 9

____ are the most common hardware component to fail on Linux systems.

Accepted Answer

A)  Floppy drives 
B)  Hard disks 
C)  NICs 
D)  Video cards 
A)  Floppy drives 
B)  Hard disks 
C)  NICs 
D)  Video cards

Question 10

Processes can initiate numerous connections, called ____________________, to files on the filesystem in addition to standard input, standard output, and standard error.

Accepted Answer

The answer of Processes can initiate numerous connections, called ____________________,...

Question 11

Match each term with the correct statement below.
-The directory that contains most system log files.

Accepted Answer

A) proactive maintenance 
B) ulimit 
C) /etc/ld.so.conf 
D) vmstat 
E) /var/log
F)sudo
G)Orca
H)reactive maintenance
I)Pluggable Authentication Modules (PAM) 
A) proactive maintenance 
B) ulimit 
C) /etc/ld.so.conf 
D) vmstat 
E) /var/log
F)sudo
G)Orca
H)reactive maintenance
I)Pluggable Authentication Modules (PAM)

Question 12

Asymmetric encryption uses a pair of keys that are uniquely generated on each system: a(n) ____ key and a(n) ____ key.

Accepted Answer

A)  authentication ; encryption 
B)  public ; private 
C)  unidirectional ; bidirectional 
D)  data ; code 
A)  authentication ; encryption 
B)  public ; private 
C)  unidirectional ; bidirectional 
D)  data ; code

Question 13

Match each term with the correct statement below.
-A command that can be used to increase the number of processes that users can start in the shell.

Accepted Answer

A) proactive maintenance 
B) ulimit 
C) /etc/ld.so.conf 
D) vmstat 
E) /var/log
F)sudo
G)Orca
H)reactive maintenance
I)Pluggable Authentication Modules (PAM) 
A) proactive maintenance 
B) ulimit 
C) /etc/ld.so.conf 
D) vmstat 
E) /var/log
F)sudo
G)Orca
H)reactive maintenance
I)Pluggable Authentication Modules (PAM)

Question 14

The ____ option to the iptables command can be used to specify the destination address of packets for a rule.

Accepted Answer

A)  -D 
B)  -L 
C)  -F 
D)  -d 
A)  -D 
B)  -L 
C)  -F 
D)  -d

Question 15

The ____ option for the sar command is used to displays statistics for the processor queue.

Accepted Answer

A)  -r 
B)  -c 
C)  -q 
D)  -v 
A)  -r 
B)  -c 
C)  -q 
D)  -v

Question 16

To identify any missing files in a package or package dependency, you can use the ____ option to the rpm command, followed by the name of the package.

Accepted Answer

A)  -v 
B)  -m 
C)  -V 
D)  -M 
A)  -v 
B)  -m 
C)  -V 
D)  -M

Question 17

When applications run into difficulties gaining resources during execution and stop functioning, restarting the process using a(n) ____ often solves this problem.

Accepted Answer

A)  SIGINT 
B)  SIGQUIT 
C)  SIGTERM 
D)  SIGHUP 
A)  SIGINT 
B)  SIGQUIT 
C)  SIGTERM 
D)  SIGHUP

Question 18

To identify which shared libraries are required by a certain program, you can use the ldconfig command. _________________________

Accepted Answer

A) True 
 B)False

Question 19

The ____________________ command is used to view the current SELinux status.

Accepted Answer

The answer of The ____________________ command is used to view...

Question 20

The free command can be used to display the total amounts of physical and swap memory in Kilobytes and their utilizations. _________________________

Accepted Answer

A) True 
 B)False

What are the two golden rules that should guide you during any troubleshooting process? Describe each rule.

A room where you lock important computers, such as Linux servers, and to which only Linux administrators or trusted users have key access is commonly called a(n) server closet. _________________________

Almost all hardware problems are the result of damaged hardware.

By default, sar commands are scheduled using the cron daemon to run every ____ minutes in Fedora 13.

How can netfilter/iptables be used to create a firewall service?

Running background processes using the ____ command allows you to exit your command-line shell without ending any background processes.

When performance issues arise, you can compare the output of performance utilities to the ____________________ values found in the system log book.

To see what network services are running on your network, you can run the ____ command.

____ are the most common hardware component to fail on Linux systems.

Processes can initiate numerous connections, called ____________________, to files on the filesystem in addition to standard input, standard output, and standard error.

Match each term with the correct statement below. -The directory that contains most system log files.

Asymmetric encryption uses a pair of keys that are uniquely generated on each system: a(n) key and a(n) key.

Match each term with the correct statement below. -A command that can be used to increase the number of processes that users can start in the shell.

The ____ option to the iptables command can be used to specify the destination address of packets for a rule.

The ____ option for the sar command is used to displays statistics for the processor queue.

To identify any missing files in a package or package dependency, you can use the ____ option to the rpm command, followed by the name of the package.

When applications run into difficulties gaining resources during execution and stop functioning, restarting the process using a(n) ____ often solves this problem.

To identify which shared libraries are required by a certain program, you can use the ldconfig command. _________________________

The ____________________ command is used to view the current SELinux status.

The free command can be used to display the total amounts of physical and swap memory in Kilobytes and their utilizations. _________________________

Introduction to Linux

Linux Installation and Usage

Exploring Linux Filesystems

Linux Filesystem Management

Linux Filesystem Administration

Advanced Installation

Working With the Bash Shell

System Initialization and X Windows

Managing Linux Processes

Common Administrative Tasks

Compression, System Backup, and Software Installation

Network Configuration

Configuring Network Services

Filters

Exam 14: Troubleshooting, Performance, and Security

What are the two golden rules that should guide you during any troubleshooting process? Describe each rule.

A room where you lock important computers, such as Linux servers, and to which only Linux administrators or trusted users have key access is commonly called a(n) server closet. _________________________

Almost all hardware problems are the result of damaged hardware.

By default, sar commands are scheduled using the cron daemon to run every ____ minutes in Fedora 13.

How can netfilter/iptables be used to create a firewall service?

Running background processes using the ____ command allows you to exit your command-line shell without ending any background processes.

When performance issues arise, you can compare the output of performance utilities to the ____________________ values found in the system log book.

To see what network services are running on your network, you can run the ____ command.

____ are the most common hardware component to fail on Linux systems.

Processes can initiate numerous connections, called ____________________, to files on the filesystem in addition to standard input, standard output, and standard error.

Match each term with the correct statement below. -The directory that contains most system log files.

Asymmetric encryption uses a pair of keys that are uniquely generated on each system: a(n) ____ key and a(n) ____ key.

Match each term with the correct statement below. -A command that can be used to increase the number of processes that users can start in the shell.

The ____ option to the iptables command can be used to specify the destination address of packets for a rule.

The ____ option for the sar command is used to displays statistics for the processor queue.

To identify any missing files in a package or package dependency, you can use the ____ option to the rpm command, followed by the name of the package.

When applications run into difficulties gaining resources during execution and stop functioning, restarting the process using a(n) ____ often solves this problem.

To identify which shared libraries are required by a certain program, you can use the ldconfig command. _________________________

The ____________________ command is used to view the current SELinux status.

The free command can be used to display the total amounts of physical and swap memory in Kilobytes and their utilizations. _________________________

Introduction to Linux

Linux Installation and Usage

Exploring Linux Filesystems

Linux Filesystem Management

Linux Filesystem Administration

Advanced Installation

Working With the Bash Shell

System Initialization and X Windows

Managing Linux Processes

Common Administrative Tasks

Compression, System Backup, and Software Installation

Network Configuration

Configuring Network Services

Filters

Asymmetric encryption uses a pair of keys that are uniquely generated on each system: a(n) key and a(n) key.