题目内容

To confirm that a remote host is online and responding and to measure network latency between machines at the same time, one can use:

A. nslookup
B. ip addr show
C. dig
D. ping

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IP addresses are divided into two parts:

Address and octets
B. TCP and IP
C. Network and host
D. Class A and B

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The root account:

A. Has authority over the entire system
B. Requires extreme caution when using because small mistakes can lead to disasters
C. Should be used carefully; think before pressing the Enter key and run complex commands in a safe way, first, to ensure mistakes aren’t made
D. All of the above

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Encrypted account passwords are found in the file _ and are typically encrypted using the _ algorithm.

A. /etc/passwd; SHA-512
B. /etc/password; SSH-512
C. /etc/shadow; SHA-512
D. /etc/shadow; HASH-256

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The command-mode key stroke _______ within vi will delete the characters from the cursor to the end of the word.

A. D
B. dw
C. d$
D. rl

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To confirm that a remote host is online and responding and to measure network latency between machines at the same time, one can use:

A. nslookup B. ip addr show C. dig D. ping

IP addresses are divided into two parts:

The root account:

Encrypted account passwords are found in the file _________ and are typically encrypted using the _________ algorithm.

The command-mode key stroke _______ within vi will delete the characters from the cursor to the end of the word.

A. nslookup
B. ip addr show
C. dig
D. ping

Encrypted account passwords are found in the file _ and are typically encrypted using the _ algorithm.