Real 201-450 Exam Questions are the Best Preparation Material
Practice on 2023 LATEST 201-450 Exam Updated 162 Questions
NEW QUESTION 71
Which file in /proc contains information on the status of local software RAID devices?
- A. /proc/raid/status
- B. /proc/mdstatus
- C. /proc/mdstat
- D. /proc/raidstatus
Answer: C
NEW QUESTION 72
After the downloading patch-4.6.4.xz from http://kernel.org, what are the next steps to prepare the build of a version 4.6.4 Linux kernel? (Choose two.)
- A. Apply the patch file to the kernel source directory containing kernel version 4.6.0
- B. Uncompress the file and move the resulting directory to /usr/src/linux
- C. Apply the patch file to the kernel source directory containing kernel version 4.6.3
- D. Use patchto apply the uncompressed patch file to the source directory of any previous kernel version
- E. Uncompress the file using xzto get the uncompressed patch file
Answer: D,E
NEW QUESTION 73
In which directory tree are files modified when changing kernel parameters using the command sysctl?
- A. /proc/kernel/
- B. /lib/sys/
- C. /proc/sys/
- D. /sys/proc/
- E. /sys/kernel/
Answer: C
NEW QUESTION 74
Which of the following configuration files are used by tcpwrapper?
- A. /etc/tcpwrapper.allow and /etc/tcpwrapper.deny
- B. /etc/service.allow and /etc/service.deny
- C. /etc/hosts.allow and /etc/hosts.deny
- D. /etc/tcpd.allow and etc/tcpd.deny
- E. /etc/access.allow and /etc/access.deny
Answer: C
NEW QUESTION 75
Which of the following terms are used to describe 3.x kernel releases? (Choose TWO correct answers.)
- A. stable
- B. prerelease
- C. beta
- D. longterm
- E. final
Answer: A,D
NEW QUESTION 76
CORRECT TEXT
Which program lists information about files and network connections opened by processes? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
lsof, /usr/bin/lsof
NEW QUESTION 77
A regular user has just run
./configure && make && make install
to build and install a program. However, the installation fails. What could be done to install the program?
(Choose two.)
- A. Run make install_local to install into /usr/local/
- B. Run make install with root privileges
- C. Do not run ./configurein order to maintain the default configuration for correct installation
- D. Rerun ./configurewith a --prefix option where the user has permissions to write
- E. Install the binaries manually with suinstall
Answer: B,D
NEW QUESTION 78
CORRECT TEXT
Running tcpdump -nli eth1 'tcp' shows the following output:
14:41:53.694538 IP 10.1.52.145.51738 > 24.215.7.162.143: Flags [.], ack 33051, win 1002, options [nop,nop,TS val 36789130 ecr 1746004159], length 0 What is the source IP address of this packet? (Please specify the answer in digits and dots ONLY.)
Answer:
Explanation:
10.1.52.145
NEW QUESTION 79
CORRECT TEXT
Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
mkisofs, genisoimage
NEW QUESTION 80
When is historical data of resource usage important? (Select THREE correct answers.)
- A. Diagnosing capacity problems.
- B. Identifying processes killed during out of memory occurrences.
- C. Selecting a computer vendor.
- D. Troubleshooting a software problem.
- E. Predicting when resources will need to be increased.
Answer: A,D,E
NEW QUESTION 81
A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect. What could be the cause of this?
(Choose TWO correct answers.)
- A. The service does not support tcpwrapper.
- B. There is a conflicting entry in /etc/hosts.allow.
- C. The machine needs to be restarted.
- D. tcpd needs to be sent the HUP signal.
- E. The service needs to be restarted.
Answer: A,B
NEW QUESTION 82
Where is the LILO boot loader code typically installed on a system with only a single Linux installation and no other operating systems?
- A. In the master boot record.
- B. At the start of the kernel.
- C. In the boot sector.
- D. In the /boot directory.
Answer: A
NEW QUESTION 83
In the following output, what is the 5 minute load average for the system?
# uptime
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
- A. There is no 5 minute interval. It is some value between 24.71 and 35.31.
- B. 24.71
- C. 0.47
- D. 35.31
- E. There is no 5 minute interval. It is some value between 0.47 and 24.71.
Answer: B
NEW QUESTION 84
CORRECT TEXT
What command discards unused blocks on a mounted file system in order to support SSD devices? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
fstrim
NEW QUESTION 85
Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?
- A. uptime
- B. vmstat
- C. freemem
- D. top
- E. ps aux
Answer: D
NEW QUESTION 86
Which file in /proc contains information on the status of local software RAID devices?
- A. /proc/raidstat
- B. /proc/raid/status
- C. /proc/mdstatus
- D. /proc/mdstat
- E. /proc/raidstatus
Answer: D
NEW QUESTION 87
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