202-450 Online Practice Questions and Answers

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Which attitude of an object in LDAP defines which other attributes can be set for the object? (Specify ONLY the attribute name without any values.)

What command is used to print NFS kernel statistics? (Provide the command with or without complete path)

A. nfsstat

A GRUB boot loader installed in the MBR was accidentally overwritten. After booting with a rescue CDROM, how can the lost GRUB first stage loader be recovered?

A. Use dd to restore a previous backup of the MBR

B. Install LILO since there is no easy way to recover GRUB

C. Running mformat will create a new MBR and fix GRUB using info from grub.conf

D. Run grub-install after verifying that grub.conf is correct.

E. Run fdisk --mbr /dev/had assuming that the boot harddisk is /dev/hda.

What postfix configuration setting defines the domains for which Postfix will deliver mail locally? (Please provide only the configuration setting name with no other information)

A. mydomain

Connecting to a remote host on the same LAN using ssh public-key authentication works but forwarding X11 doesn't. The remote host allows access to both services. Which of the following can be the reason for that behavior?

A. The remote user's ssh_config file disallows X11 forwarding

B. The remote server's sshd_config file disallows X11 forwarding

C. A different public key has to be used for X11

D. X11 cannot be forwarded if public-key authentication was used E. X11 though SSH needs a special X11 server application installed

A server with 2 network interfaces, eth0 and eth1, should act as a router. eth0 has the IP address 192.168.0.1 in the subnet 192.168.0.1/24 and eth1 has the IP address 10.0.0.1 in the subnet 10.0.0.0/16.

The routing table looks fine, but no data is traversing the networks. Which TWO of the following need to be done?

A. Enable IP forwarding with echo "1" > /proc/sys/net/ipv4/ip_forward

B. Add new firewall chains to handle inbound and outbound traffic on both interfaces.

C. Reconfigure the firewall rules to allow traffic to traverse the networks.

D. The routing table needs to be restarted, for the changes to take effect.

E. The server needs to be restarted, for the changes to take effect.

What information can be found in the file specified by the status parameter in an OpenVPN server configuration file? (Choose TWO correct answers.)

A. Errors and warnings generated by the openvpn daemon

B. Routing information

C. Statistical information regarding the currently running openvpn daemon

D. A list of currently connected clients

E. A history of all clients who have connected at some point

Which of these sets of entries will the following command return?

ldapsearch -x "(|(cn=marie)(!(telephoneNumber=9*)))"

A. Entries that don't have a cn of marie or don't have a telephoneNumber that begins with 9.

B. Entries that have a cn of marie or don't have a telephoneNumber beginning with 9.

C. Entries that have a cn of marie and a telephoneNumber ending with 9.

D. Entries that don't have a cn of marie and don't have a telephoneNumber beginning with 9.

E. Entries that have a cn of marie or have a telephoneNumber beginning with 9.

Which of the following commands can be used to connect and interact with remote services? (Choose TWO correct answers.)

A. nettalk

B. nc

C. telnet

D. cat

E. netmap

How are PAM modules organized and stored?

A. As plain text files in /etc/security/

B. A statically linked binaries in /etc/pam.d/bin/

C. As Linux kernel modules within the respective sub directory of /lib/modules/

D. As shared object files within the /lib/ directory hierarchy

E. As dynamically linked binaries in /usr/lib/pam/sbin/