Updated Free Lpi 102-500 Test Engine Questions with 195 Q&As [Q110-Q128] : Top Exam Collection : http://blog.topexamcollection.com

新问题 110
What the echo $$ command?

The process ID of the current shell.

The process ID for the following command.

The process ID of the last command executed.

The process ID of the last command which has been placed in the background.

The process ID of the echo command.

新问题 111
Which of the following commands finds all files owned by root that have the SetUID bit set?

find / -user root -perm -4000

find / -user 0 -mode +s

find / -owner root -setuid

find / -owner 0 -permbits 0x100000000

find / –filter uid=1 –filter pers=u+s

新问题 112
Which of the following steps prevents a user from obtaining an interactive login session?

Setting the UID for the user to 0.

Running the command chsh -s /bin/false with the user name.

Removing the user from the group staff.

Adding the user to /etc/noaccess.

Creating a .nologin file in the user’s home directory.

新问题 113
FILL BLANK
What command, depending on its options, can display the open TCP connections, the routing tables, as well as network interface statistics? (Specify only the command without any path or parameters.)

新问题 114
Given the following routing table:

How would an outgoing packet to the destination 192.168.2.150 be handled?

It would be passed to the default router 192.168.178.1 on wlan0.

It would be directly transmitted on the device eth0.

It would be passed to the default router 255.255.255.0 on eth0.

It would be directly transmitted on the device wlan0.

It would be passed to the router 192.168.1.1 on eth0.

新问题 115
How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

The /etc/crontab file can specify a year field.

A normal crontab file must be installed with the crontab command.

A normal crontab file allows for environment variable substitution.

The /etc/crontab file has a user field for commands.

新问题 116
How do shadow passwords improve the password security in comparison to standard no-shadow password?

Regular users do not have access to the password hashes of shadow passwords.

Every shadow password is valid for 45 days and must be changed afterwards.

The system’s host key is used to encrypt all shadow passwords.

Shadow passwords are always combined with a public key that has to match the user’s private key.

Shadow passwords are stored in plain text and can be checked for weak passwords.

新问题 117
Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

2001:db8::15 www.example.com www

www.example.com www 203.0.13.15

203.0.113.15 www.example.com www

www.example.com,www 203.0.13.15,2001:db8::15

2003.0.113.15,2001:db8::15 www.example.com www

新问题118
What output does the command seq 1 5 20produce?
1

5
10
15
1

6
11
16
1

2
3
4
2

3
4
5
5

10
15
20

新问题 119
What is true regarding the command userdel –force –remove bob? (Choose TWO correct answers.)

The user bob is removed from the system’s user database.

The user bob’s home directory is removed.

The locate database is updated to drop files owned by bob.

All files owned by bob are remove from all mounted filesystems.

In case bob was the last member of a group, that group is deleted.

新问题 120
Which standardized TCP port is used by HTTPS services?

8080

443

636

新问题 121
Which of the following commands preloads and manages existing SSH keys that are used for automatic authentication while logging in to order machines using SSH?

sshd

ssh-keyring

ssh-keygen

ssh-pki

ssh-agent

新问题 122
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

Without additional configuration, no users may have user specific crontabs.

Without additional configuration, all users may have user specific crontabs.

The cron daemon will refuse to start and report missing files in the system’s logfile.

When a user creates a user specific crontab the system administrator must approve it explicitly.

新问题 123
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing?
(选择三个）。

10.0.0.0/8

127.0.0.0/8

169.255.0.0/16

172.16.0.0/12

192.168.0.0/16

新问题 124
Which directory in /etc is used to keep a sample copy of files and directories for when a new user has a home directory created? (Please provide the full path)

新问题 125
Where are user specific crontabs stored?

In the database file /etc/crontab.db which is shared by all users.

As individual per-user files within /var/spool/cron.

As individual per-user files in /etc/cron.user.d.

In the .crontab file in the user’s home directory.

In the file /var/cron/user-crontab which is shared by all users.

新问题 126
Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also details about the query?

dnsq

主机名

挖掘

dnslookup

zoneinfo

新问题 127
FILL BLANK
Which directory holds configuration files for xinetd services? (Specify the full path to the directory.)

新问题 128
Which command included in NetworkManager is a curses application which provides easy acces to the NetworkManager on the command line? (Specify only the command without any path or parameters.)

最新免费 Lpi 102-500 测试引擎问题，含 195 个问答 [Q110-Q128]

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