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Newly Released 702-100 Dumps for BSD Specialist Certified
The LPI 702-100 exam covers a range of topics related to BSD installation and software management, including system boot processes, package management, system monitoring, and backup and recovery processes. Candidates are also tested on their ability to configure network interfaces, manage user accounts, and troubleshoot system errors. 702-100 exam is designed to evaluate the candidate’s ability to work with BSD operating systems, including FreeBSD, NetBSD, and OpenBSD.
Earning the Lpi 702-100 certification can open up new career opportunities and increase earning potential. Employers often look for certified professionals who have a proven track record in managing and administering complex systems. Additionally, the certification can help individuals stand out in a crowded job market and demonstrate their commitment to ongoing professional development.
Lpi 702-100 (Linux Professional Institute BSD Installation and Software Management 702) Exam is an industry-recognized certification exam for individuals who wish to demonstrate their mastery of installation and software management in a BSD (Berkeley Software Distribution) environment. 702-100 exam is designed to validate the candidate's ability to understand the different components of an operating system, install BSD-based operating system, manage packages and applications, and perform troubleshooting and maintenance tasks.
NEW QUESTION # 36
What subnet mask is used on network 192 168 32 0 in the following output?
Fxp0: flags=8843 <UP, BROADCAST, RUNNING, SIMPLEX, MULTICAST> mtu 1500 options=8 inet 192.168.50.162 netmask OxffffeOOO broadcast 192.168.63.255 ether 00:09:6B: 13:42:9f media: Ethernet autoselect (lOObaseTX <full-duplex>) status: active
- A. 255 255.224.0
- B. 0
- C. /25
- D. 1
- E. /28
Answer: A
Explanation:
Explanation
The subnet mask 255.255.224.0 corresponds to the hexadecimal netmask 0xffffe000 shown in the output. This subnet mask indicates a subnet with 19 bits for the network portion and 13 bits for the host portion, allowing for a large number of hosts within the subnet.
References:
BSD Specialist Exam 702 Objectives - Linux Professional Institute
FreeBSD Handbook - Networking
NEW QUESTION # 37
Which command updates the database used by locate to find files'?
- A. which
- B. find
- C. searchdb
- D. whereis
- E. locate.updatedb
Answer: E
Explanation:
Explanation
The command locate.updatedb updates the database used by locate to find files. The locate command searches for files by name in a pre-built database of files and directories. The database is usually updated periodically by a cron job, but the locate.updatedb command can be used to manually update it. The command may require root privileges to run, depending on the system configuration. References:
BSD Specialist Exam 702 Objectives, Topic 715: Basic Unix Skills, 715.4 Searching and Extracting Data from Files FreeBSD Handbook, Chapter 7: Finding and Installing Software, 7.2.3 Using locate(1) to Find Files Quickly
NEW QUESTION # 38
Given the following listing
-rw-r-r- 1root whee115254 Nov 13 08:55 bobsfile
How can the superuser grant the user bob write permission to this file?
- A. chperm 664 bobsfile
- B. chmod +x bobsfile
- C. chown bob:bob bobsfile
- D. vipw -u bob bobsfile
- E. chgrp bob bobsfile
Answer: C
Explanation:
Explanation
The command chown changes the ownership of a file or directory. The syntax is chown user:group file, where user is the new owner and group is the new group of the file. In this case, the superuser can grant the user bob write permission to the file by changing both the owner and the group of the file to bob. This way, bob will have the same permissions as the original owner, which is read and write. Alternatively, the superuser can also use the command chmod to change the permissions of the file without changing the ownership. For example, chmod g+w bobsfile will add write permission to the group, and chmod o+w bobsfile will add write permission to others. However, these commands will also affect other users who belong to the same group or are not the owner or the group of the file. References:
FreeBSD Handbook: File and Directory Ownership
FreeBSD Handbook: File and Directory Permissions
Linux Professional Institute BSD Specialist: 702.1 Filesystem and Devices
NEW QUESTION # 39
Assuming a umask of 022, what are the default permissions in octal mode of the newly created files?
- A. 0
- B. 1
- C. 2
- D. 022
- E. 3
Answer: B
Explanation:
Explanation
The umask command in BSD is used to set default permissions for files or directories the user creates1. The umask value is permissions to deny, taken off whatever permissions would be given by default2. The default permission values for files are 666 (rw-rw-rw-), meaning read and write for user, group, and others3. The umask value of 022 means that the permissions to deny are 022 (-w-w-), meaning write for group and others. To calculate the default permissions for newly created files, we need to subtractthe umask value from the default permission value, using bitwise AND operation4. For example:
666 - 022 = 644 rw-rw-rw- - -w-w- = rw-r-r-
Therefore, the default permissions for newly created files with a umask of 022 are 644 (rw-r-r-), meaning read and write for user, and read for group and others.
References: 1: Umask command in Linux with examples - GeeksforGeeks 2: Different permission between directory and file with 'umask' - Unix & Linux Stack Exchange 3: Default File Permissions (umask) - docs.oracle.com 4: What is Umask and How to Use It {Update Default Linux File Permissions} - phoenixNAP KB
NEW QUESTION # 40
Which command shows all processes owned by the user bob?
- A. top bob
- B. who -1 bob
- C. pgrep -u bob
- D. ps -o -a bob
- E. last -p bob
Answer: C
Explanation:
Explanation
The pgrep command is used to find processes by various criteria, such as user name, group name, process ID, command name, etc. The -u option specifies the user name or user ID to match. Therefore, the command pgrep
-u bob will show all processes owned by the user bob. The output will be a list of process IDs, one per line. To show more information about the processes, such as command name, arguments, state, etc., the -l, -a, and -f options can be used. For example, the command pgrep -l -u bob will show the process ID and the command name for each process owned by bob. References:
pgrep - FreeBSD, the manual page for the pgrep command on FreeBSD.
How to use pgrep and pkill commands in Linux - Linuxize, a tutorial on how to use the pgrep and pkill commands in Linux.
NEW QUESTION # 41
Which command and option can be used to perform a reverse DNS lookup?
- A. host -reverse
- B. dig -x
- C. dnssec -check
- D. rdns -1
- E. nsupdate -r
Answer: B
Explanation:
Explanation
This command and option can be used to perform a reverse DNS lookup, which is the process of finding the domain name or hostname associated with an IP address. The dig command is a tool that can query DNS servers for various types of records, such as A, MX, NS, PTR, etc. The -x option tells dig to perform a reverse DNS lookup by sending a PTR query to the DNS server. For example, to perform a reverse DNS lookup for the IP address 8.8.8.8, the following command can be used:
dig -x 8.8.8.8
The output of this command will show the PTR record for 8.8.8.8, which is dns.google. This means that the hostname for 8.8.8.8 is dns.google. Reverse DNS lookups are useful for verifying the identity of a host, checking for mail server configuration, or troubleshooting network problems
NEW QUESTION # 42
How often does? match the preceding expression in a regular expression?
- A. Two or more times
- B. Zero or one times
- C. Any number of times
- D. One or more times
- E. Exactly one time
Answer: B
Explanation:
Explanation
The question mark (?) is a special character in regular expressions that modifies the preceding expression to match zero or one times. For example, the regular expression colou?r matches both color and colour, but not colouur or colr. The question mark is also used to make an expression non-greedy, meaning that it will match the shortest possible string instead of the longest. For example, the regular expression <.?> matches the first pair of angle brackets in a string, while <.> matches the entire string enclosed by the outermost pair of angle brackets. References:
Regular expression - Wikipedia, section "Basic concepts"
How to write Regular Expressions? - GeeksforGeeks, section "Special Characters"
NEW QUESTION # 43
What is the purpose of the file /boot/loader. conf on OpenBSD?
- A. Specify the kernel image to load.
- B. Specify where to install the bootloader.
- C. Specify which system services to start.
- D. Specify kernel configuration options.
- E. Specify options for starting operating systems other than BSD.
Answer: A
Explanation:
Explanation
The file /boot/loader.conf on OpenBSD is used to specify the kernel image that the bootloader should load.
This file contains various settings that can be used to control the boot process, including kernel parameters and device driver options.
References:
boot(8) - OpenBSD manual pages
NEW QUESTION # 44
Which BSD command lists, adds, or deletes swap devices?
- A. swapinfo
- B. swapct1
- C. swap
- D. diskcontro1
- E. mkswap
Answer: B
Explanation:
Explanation
The swapctl command is used to list, add, or delete swap devices on BSD systems. It can also display the total amount of swap space available and used. The swapctl command takes various options to perform different actions, such as -l to list the swap devices, -a to add a swap device, -d to delete a swap device, and -s to show the swapsummary. The other options are not valid BSD commands for managing swap devices. References:
swapctl(8) - OpenBSD manual pages
FreeBSD Handbook - Chapter 19. The FreeBSD Booting Process
FreeBSD Handbook - Chapter 9. Configuring the FreeBSD Kernel
NEW QUESTION # 45
Which of the following features are provided by the command date'? (Choose TWO correct answers.)
- A. It sets the clock to a specific time
- B. It displays a calendar
- C. It changes the system's timezone.
- D. It outputs the time in a specific format
- E. It sends NTP queries
Answer: A,D
Explanation:
Explanation
The date command in BSD systems provides the following features:
It outputs the time in a specific format. The date command can display the current date and time in various formats, depending on the options and arguments given. For example, the command date
+%Y-%m-%d will output the date in the format of year-month-day, such as 2023-04-30. The command date +%T will output the time in the format of hour:minute:second, such as 22:51:42. The command date +%A will output the full name of the weekday, such as Thursday. The date command supports many formatting characters that can be used to customize the output. For a full list of formatting characters, see the date(1) manual page1.
It sets the clock to a specific time. The date command can also be used to set the system date and time, if the user has the appropriate privileges. For example, the command date 0430225123 will set the date and time to April 30, 2023, 22:51:42. The command date -u 0430225123 will set the date and time to the same value, but in UTC (Coordinated Universal Time) instead of the local time zone. The command date -n will set the date and time to the current network time, using the ntpd(8) daemon1.
The date command does not provide the following features:
It does not display a calendar. The date command only displays the date and time, not a calendar. To display a calendar, the cal(1) or ncal(1) commands can be used instead. For example, the command cal 4
2023 will display the calendar for April 2023. The command ncal -w 2023 will display the calendar for the whole year 2023, with week numbers23.
It does not send NTP queries. The date command does not send any network requests or queries to NTP (Network Time Protocol) servers. To synchronize the system clock with NTP servers, the ntpd(8) daemon or the ntpdate(8) utility can be used instead. For example, the command ntpd -q will query one or more NTP servers and adjust the system clock accordingly. The command ntpdate pool.ntp.org will set the date and time to the value returned by the NTP server pool.ntp.org45.
It does not change the system's timezone. The date command does not change the system's timezone setting, only the date and time values. To change the system's timezone, the tzsetup(8) utility or the ln(1) command can be used instead. For example, the command tzsetup will run an interactive program that allows the user to select a timezone from a list of regions and cities. Thecommand ln -sf
/usr/share/zoneinfo/Europe/Paris /etc/localtime will create a symbolic link from the file /etc/localtime to the file /usr/share/zoneinfo/Europe/Paris, which contains the timezone information for Paris, France .
References:
date(1) - FreeBSD
cal(1) - FreeBSD
ncal(1) - FreeBSD
ntpd(8) - FreeBSD
ntpdate(8) - FreeBSD
[tzsetup(8) - FreeBSD]
[ln(1) - FreeBSD]
NEW QUESTION # 46
Which of the following commands can be used to connect to a remote TCP service?
- A. portstat
- B. connect
- C. service
- D. listen
- E. netcat
Answer: E
Explanation:
Explanation
The command netcat is a versatile networking utility that can be used to read from and write to network connections using TCP or UDP protocols. It is often used for debugging and investigating the network and can be used to connect to a remote TCP service.
References:
BSD Specialist Exam 702 Objectives - Linux Professional Institute
FreeBSD Handbook - Networking
NEW QUESTION # 47
Which command sends the contents of the file myconfigfile by email to me@mycompany. com?
- A. mail [email protected] > cat myconfigfile
- B. mail [email protected] I cat myconfigfile
- C. cat myconfigfile I mail [email protected]
- D. mail myconfigfile -r [email protected]
- E. cat myconfigfile > [email protected]
Answer: C
Explanation:
Explanation
The cat command is used to concatenate and display files. The mail command is used to send and receive mail messages. The pipe symbol (I) is used to redirect the output of one command to the input of another command.
Therefore, the command cat myconfigfile I mail [email protected] sends the contents of the file myconfigfile by email to [email protected]. The cat command reads the file and displays its contents to the standard output, which is then piped to the mail command, which reads the standard input and sends it as a mail message to the specified address. The mail command also prompts the user to enter a subject line and optionally some additional headers for the message. Alternatively, the subject line can be specified by the -s option of the mail command. For example, the command cat myconfigfile I mail -s "My config file" [email protected] sends the same message with the subject "My config file". References:
[cat - FreeBSD], the manual page for the cat command on FreeBSD.
[mail - FreeBSD], the manual page for the mail command on FreeBSD.
[How to send email from the Linux command line - LinuxConfig.org], a tutorial on how to use the mail command and other email clients on Linux.
NEW QUESTION # 48
What directory holds the ports collection on FreeBSD? (Choose TWO correct answers.)
- A. /tmp/ports/
- B. /usr/ports/
- C. /usr/local/pkg/
- D. /ports/
- E. /var/db/packages/
Answer: B,C
Explanation:
Explanation
The ports collection on FreeBSD is a package management system that allows users to install third-party software from source or binary packages. The ports collection is stored in the /usr/ports/ directory, which contains subdirectories for different categories of software, such as archivers, databases, editors, etc. Each subdirectory contains one or more ports, which are directories that contain the files needed to build and install the software. The /usr/ports/ directory can be updated with the portsnap command34 Binary packages are pre-compiled versions of the ports that can be installed with the pkg command. Binary packages are downloaded from the FreeBSD package repository,which is hosted at pkg.freebsd.org. The packages are installed in the /usr/local/ directory by default, and the information about the installed packages is stored in the /usr/local/pkg/ directory. The /usr/local/pkg/ directory contains files with the .db extension, which are SQLite databases that store the metadata of the packages. The pkg command can query and manipulate these databases56 References: 3: https://docs.freebsd.org/en/books/handbook/ports/ 4:
https://www.freebsd.org/ports/ 5: https://docs.freebsd.org/en/books/handbook/pkgng-intro/ 6:
https://www.freebsd.org/cgi/man.cgi?query=pkg&sektion=8
NEW QUESTION # 49
Which of the following programs can be used to enumerate all responsive hosts on a subnet?
- A. netstat
- B. nmap
- C. route
- D. rtso1
- E. traceroute
Answer: B
Explanation:
Explanation
Nmap is a program that can be used to enumerate all responsive hosts on a subnet. Nmap stands for Network Mapper, and it is a tool that can perform network discovery, port scanning, service detection, vulnerability assessment, and more. Nmap can send different types of packets to probe the hosts on a subnet and determine which ones are alive and what services they are running. Nmap can also perform OS fingerprinting, which can identify the operating system of the target hosts. Nmap has many options and features that can customize the scan according to the user's needs and preferences. The other programs are not suitable for enumerating all responsive hosts on a subnet, because:
A: traceroute: This program is used to trace the route of packets from the source host to the destination host. It can show the intermediate hops and the latency of each hop. However, it cannot show all the hosts on a subnet, only the ones that are on the path to the destination.
B: netstat: This program is used to display the status of network connections, routing tables, interface statistics, and more. It can show the local and remote addresses and ports of the active connections, but it cannot show all the hosts on a subnet, only the ones that are connected to the local host.
D: rtso1: This is not a valid program name, but it may be a typo for rtso, which is a program that can perform TCP SYN scanning. However, this program is not as versatile and powerful as nmap, and it can only scan TCP ports, not UDP or other protocols.
E: route: This program is used to manipulate the routing table, which is used to determine the next hop for a packet based on its destination address. It can show the destination, gateway, interface, and flags of each route, but it cannot show all the hosts on a subnet, only the ones that are reachable via a specific gateway. References: 6: https://nmap.org/book/man.html 7:
https://www.freebsd.org/cgi/man.cgi?query=traceroute&sektion=8 :
https://www.freebsd.org/cgi/man.cgi?query=netstat&sektion=1 :
https://www.freebsd.org/cgi/man.cgi?query=rtso&sektion=1 :
https://www.freebsd.org/cgi/man.cgi?query=route&sektion=8
NEW QUESTION # 50
Which device stands for the first BSD disk slice in the disk label on the first partition on the second SATA disk on OpenBSD?
- A. /dev/sdlp2d
- B. /dev/slld2
- C. /dev/sdla
- D. /dev/d2sl
- E. /dev/sata2a
Answer: A
Explanation:
Explanation
According to the BSD disklabel documentation1, the device name for a BSD disk slice consists of three parts:
the disk name, the partition letter, and the slice number. The disk name is determined by the driver and the order of detection, and it usually follows the pattern of sdX, where X is a letter from a to z. The partition letter is a lowercase letter from a to p, excluding c, which is reserved for the whole disk. The slice number is a decimal number from 0 to 15, indicating the MBR partition that contains the BSD disklabel. Therefore, the device name for the first BSD disk slice in the disk label on the first partition on the second SATA disk on OpenBSD is /dev/sdlp2d, where sdl is the disk name, p is the partition letter, and 2 is the slice number.
References1: BSD disklabel - Wikipedia
NEW QUESTION # 51
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