Question 38: __________ is a Mail server that plays an intermediary role to transfer mail between locations that are not directly connected to each other, it resolves recipient addresses to transfer between mail servers or to mail gateways. – LLODO – Education and technology Link Hoc va de thi 2021
Question 34: In Linux, DNS servers are divided into how many types: A. 1 B. 2 C. 3 D. 4 REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 29: On which port does the SMTP service run: A. 22 B. 24 C. 23 D. 25 EASY is the correct answer =============== Link Hoc va de thi 2021
Question 25: In a Linux system, which user has the highest privileges: A. User administrator B. User root C. User admin D. User has UID=0 REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 21: To list the files in the current directory, use the command: A. ls . command B. command df C. du command D. command cp A is the correct answer =============== Link Hoc va de thi 2021
Question 16: Which file identifies all the users on your system? A. /etc/passwd B. /etc/users C. /etc/password D. /etc/user.conf A is the correct answer =============== Link Hoc va de thi 2021
Question 12: You are installing Linux on your computer. You want to have 5 different partitions and have created 4 partitions. There is no way to create the 5th partition. What happened: A. Your hard drive does not have enough space to create more than 4 partitions. B. You must create a swap partition. C. […]
Question 8: You use the following command useradd –m sapa but user sapa can’t log in. To log in, what should we do? A. Need to register a password for user sapa with the command password sapa B. Must create home directory for sapa and create access permission. C. You need to edit the file […]
Question 3: Which command is used to list all the files with the extension name not containing the characters from “x” to “w” in the current directory A. ls *.!x | .!w B. ls *.[!x-w] C. ls ! *.[xz] D. ls *.[!xw] REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 50: What command is used to delete the entire /dir . directory? A. rm –f /dir B. rm –r /dir C. rmdir /dir D. rmdir –p /dir REMOVE is the correct answer =============== Link Hoc va de thi 2021