QUESTION $1$

A manager needs to keep a hash value of his files in order to make sure no change was made on them, knowing that his files names are $"$ MFile$1.$text", "MFile$2.$text" and "MFile$3.$text" write a command line that can be used to fulfill his request.

For the toolbar, press ALT$+$F$10($PC$)$ or ALT$+$FN$+$F$10($Mac$).$

QUESTION $2$

A user wants to view the content of a text file name "File$1.$text" in the terminal, can you write a suitable command line.

For the toolbar, press ALT$+$F$10($PC$)$ or ALT$+$FN$+$F$10($Mac$).$

QUESTION $3$

An Administrator of a company needs to sign the report of the year "FinalReport.text" with his digital signature. Suggest a command line that is suitable for this task.

For the toolbar, press ALT$+$F$10($PC$)$ or ALT$+$FN$+$F$10($Mac$).$

QUESTION $4$

An IT worker needs to check the open ports for his device knowing that his IP address is $245\mathrm{.}11\mathrm{.}22\mathrm{.}33.$ What is the suitable command line for this task.

For the toolbar, press ALT$+$F$10($PC$)$ or ALT$+$FN$+$F$10($Mac$).$

QUESTION $5$

A bank worker needs to send an encrypted file to another worker in the same bank knowing that username of that worker is "user$5687".$ What is the suitable code for him to find the public key of that user only on the bank system.

For the toolbar, press ALT$+$F$10($PC$)$ or ALT$+$FN$+$F$10($Mac$).$