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Linux Foundation Certified System Administrator Questions and Answers

Question 25

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

Options:

ssh --port 2222 example.com

ssh -p 2222 example.com

ssh -o Port=2222 example.com

ssh -o GatewayPort=2222 example.com

ssh example.com:2222

Question 26

Which of the following commands lists the dependencies of a given dpkg package?

Options:

apt-cache depends-on package

apt-cache dependencies package

apt-cache depends package

apt-cache requires package

Question 27

Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

Options:

SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;

SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;

COUNT(SELECT order_type FROM orders);

SELECT COUNT(*) FROM orders ORDER BY order_type;

SELECT AUTO_COUNT FROM orders COUNT order_type;

Question 28

Which keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host lookups consult the /etc/hosts file?

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Linux Foundation Certified System Administrator Questions and Answers

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