QUESTION: 101

A Linux administrator needs to determine whether a hostname is in the DNS. Which of the following would supply the information that is needed?

nslookup
rsynс
netstat
host

Answer(s): D

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A server is experiencing intermittent connection issues. Some connections to the Internet work as intended, but some fail as if there is no connectivity. The systems administrator inspects the server configuration:
Which of the following is MOST likely the cause of the issue?

An internal-only DNS server is configured.
The IP netmask is wrong for ens3.
Two default routes are configured.
The ARP table contains incorrect entries.

Answer(s): B

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QUESTION: 103

A cloud engineer needs to block the IP address 192.168.10.50 from accessing a Linux server. Which of the following commands will achieve this goal?

iptables -F INPUT -j 192.168.10.50 -m DROP
iptables -A INPUT -s 192.168.10.30 -j DROP
iptables -i INPUT --ipv4 192.168.10.50 -z DROP
iptables -j INPUT 192.168.10.50 -p DROP

Answer(s): B

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QUESTION: 104

A Linux systems administrator is configuring a new filesystem that needs the capability to be mounted persistently across reboots. Which of the following commands will accomplish this task? (Choose two.)

df -h /data
mkfs.ext4 /dev/sdc1
fsck /dev/sdc1
fdisk -l /dev/sdc1
echo "/data /dev/sdc1 ext4 defaults 0 0" >> /etc/fstab
echo "/dev/sdc1 /data ext4 defaults 0 0" >> /etc/fstab

Answer(s): B,F

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Free XK0-005 Exam Braindumps (page: 27)

QUESTION: 101

QUESTION: 102

QUESTION: 103

QUESTION: 104

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