Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)

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How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?

• A.14
• B.62
• C.30
• D.6
• E.126

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What is the main difference between the batch and at commands?

• A.The batch command will run multiple times.The at command will only run once.
• B.The batch command will run when system load is low. The at command runs at a specific time.
• C.The at command reads commands from standard input. The batch command requires a command line argument.
• D.The at command e-mails results to the user. The batch command logs results to syslog.

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What is true about NetworkManager on a Linux system that uses its distribution's mechanisms to configure network interfaces? (Choose two.)

• A.NetworkManager must be explicitly enabled for each interface it should manage.
• B.NetworkManager reconfigures all network interfaces to use DHCP unless they are specifically managed by NetworkManager.
• C.NetworkManager by default does not change interfaces which are already configured.
• D.NetworkManager can be configured to use the distribution's network interface configuration.
• E.NetworkManager disables all interfaces which were not configured by NetworkManager.

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What command displays all aliases defined in the current shell? (Specify the command without any path information)

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