LPIC-1 Exam 102, Part 2 of 2, version 5.0 (102-500) Free Practice Test

Question 1

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

Correct Answer:

1024
Explanation:
The lowest numbered unprivileged TCP port is 1024. A port number is a 16-bit unsigned integer, thus ranging from 0 to 65535. The port numbers in the range from 0 to 1023 are the well-known ports or system ports. They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well-known ports. Therefore, the lowest numbered port that can be used by a normal user without root access is 1024, which is the first unprivileged port123 Reference:
1: How to bind to port number less than 1024 with non root access?
2: lowest numbered unprivileged TCP port - Bing
3: List of TCP and UDP port numbers - Wikipedia
4: Privileged Ports - World Wide Web Consortium (W3C)
5: What is the lowest TCP port number? - TeachersCollegesj

Question 2

Which of the following is true about IPv6?

A. IPv6 no longer supports multicast addresses.

B. For IPv6, UDP and TCP have been replaced by the Rapid Transmission Protocol RTP.

C. With IPv6, the TCP port numbers of most services have changed.

D. IPv4 addresses can be used without any change with IPv6.

E. IPv6 no longer supports broadcast addresses.

Correct Answer: E

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Question 3

Which of Ihe following commands sets the system's time zone to the Canadian Eastern Time?

A.

B.

C.

D.

E.

Correct Answer: E

Question 4

Which of the following entries in /etc/syslog.conf writes all mail related events to the file /var/log/maillog and sends all critical events to the remote server logger.example.com?

A. mail.*/var/log/[email protected]

B. mail/var/log/[email protected]

C. mail.*/var/log/maillogmail.critsyslog://logger.example.org

D. mail */var/log/maillogmail [email protected]

E. mail.*/var/log/maillogmail,[email protected]

Correct Answer: A

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Question 5

What output will the following command sequence produce?
echo '1 2 3 4 5 6' | while read a b c; do
echo result: $c $b $a;
done

A. result: 1 2 3 4 5 6

B. result: 6 5 4 3 2 1

C. result: 3 4 5 6 2 1

D. result: 3 2 1

E. result: 6 5 4

Correct Answer: D

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Question 6

Which of the following commands can be used to limit the amount of memory a user may use?

A. ulimit

B. umask

C. chage

D. passwd

E. usermod

Correct Answer: A

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Question 7

Which of the following commands configure network interfaces based on the system's existing distribution-specific configuration files? (Choose two.)

A. ifdown

B. ifstart

C. ifconf

D. ifup

E. ifpause

Correct Answer: A,D

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Question 8

Which standardized TCP port is used by HTTPS services?

A. 8080

B. 80

C. 443

D. 25

E. 636

Correct Answer: C

Question 9

Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?

A. IF

B. WHERE

C. CASE

D. FROM

Correct Answer: B

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Question 10

Which configuration file contains the default options for SSH clients?

A. /etc/ssh/client

B. /etc/ssh/sshd_config

C. /etc/ssh/ssh_client

D. /etc/ssh/ssh

E. /etc/ssh/ssh_config

Correct Answer: E

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Question 11

Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

A. 172.16.0.0/12

B. 169.255.0.0/16

C. 192.168.0.0/16

D. 127.0.0.0/8

E. 10.0.0.0/8

Correct Answer: A,C,E

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Question 12

Which of the following is the best way to list all defined shell variables?

A. echo $ENV

B. env

C. env -a

D. set

Correct Answer: D

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Question 13

Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

A. route

B. dig

C. netstat

D. trackroute

E. ifconfig

Correct Answer: A,C

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Lpi LPIC-1 Exam 102, Part 2 of 2, version 5.0 (102-500) Free Practice Test