312-50v11 Practice Test

is a set of extensions to DNS that provide the origin authentication of DNS data to DNS clients (resolvers) so as to reduce the threat of DNS poisoning, spoofing, and similar types
of attacks.

A.

DNSSEC

B.

Resource records

C.

Resource transfer

D.

Zone transfer

Joseph was the Web site administrator for the Mason Insurance in New York, who's main
Web site was located at www.masonins.com. Joseph uses his laptop computer regularly to
administer the Web site. One night, Joseph received an urgent phone call from his friend,
Smith. According to Smith, the main Mason Insurance web site had been vandalized! All of
its normal content was removed and replaced with an attacker's message ''Hacker
Message: You are dead! Freaks!” From his office, which was directly connected to Mason
Insurance's internal network, Joseph surfed to the Web site using his laptop. In his
browser, the Web site looked completely intact.
No changes were apparent. Joseph called a friend of his at his home to help troubleshootthe problem. The Web site appeared defaced when his friend visited using his DSL
connection. So, while Smith and his friend could see the defaced page, Joseph saw the
intact Mason Insurance web site. To help make sense of this problem, Joseph decided to
access the Web site using hisdial-up ISP. He disconnected his laptop from the corporate
internal network and used his modem to dial up the same ISP used by Smith. After his
modem connected, he quickly typed www.masonins.com in his browser to reveal the
following web page:
After seeing the defaced Web site, he disconnected his dial-up line, reconnected to the
internal network, and used Secure Shell (SSH) to log in directly to the Web server. He ran
Tripwire against the entire Web site, and determined that every system file and all the Web
content on the server were intact. How did the attacker accomplish this hack?

A.

ARP spoofing

B.

SQL injection

C.

DNS poisoning

D.

Routing table injection

Larry, a security professional in an organization, has noticed some abnormalities In the
user accounts on a web server. To thwart evolving attacks, he decided to harden the
security of the web server by adopting a countermeasures to secure the accounts on the
web server.
Which of the following countermeasures must Larry implement to secure the user accounts
on the web server?

A.

Enable unused default user accounts created during the installation of an OS

B.

Enable all non-interactive accounts that should exist but do not require interactive login

C.

Limit the administrator or toot-level access to the minimum number of users

D.

Retain all unused modules and application extensions

Password cracking programs reverse the hashing process to recover passwords.
(True/False.)

A.

True

B.

False

By performing a penetration test, you gained access under a user account. During the test,
you established a connection with your own machine via the SMB service and occasionally
entered your login and password in plaintext.
Which file do you have to clean to clear the password?

A.

X session-log

B.

bashrc

C.

profile

D.

bash_history