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CIW SECURITY PROFESSIONAL: 1d0-470 Exam
Exam Number/Code: 1d0-470
Exam Name: CIW SECURITY PROFESSIONAL

“CIW SECURITY PROFESSIONAL”, also known as 1d0-470 exam, is a ciw certification.
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Question: 1
Why is password lockout an effective deterrent to cracking attempts?
A. Passwords cannot be changed through brute-force methods
B. A limited number of login attempts before lockout reduces the number of guesses the potential
cracker can made
C. Passwords protected in this manner are impossible to find because they are locked out of the
Main flow of information on the WAN
D. Password lockout provides no real improvement over traditional locking methods.
Answer: B
Explanation:
Password lockout is where the user account is locked out and disabled after a specified number
of consecutive incorrect password attempts. The duration of the lockout can be a time period, or
until an administrator goes in and manually re-enables the account. Usually a time period is used
to reduce administration. In either case this reduces the guesses. For example, suppose we set a
lockout so that a lockout occurs after 3 failures, and then automatically remove the lockout after
20 minutes. This provides a maximum of 9 failures per hour, or 216 passwords per day. Without
lockout, on a fast system, a hacker could probably run thousands of guesses per hour, so
password lockout introduces a substantial speed bump to the cracking process.
Incorrect Answers:
A: Password lockout does not affect password changing, unless the account requires the original
password to make the change. At this point the hacker already has the password, because
entry to the account has already occurred.
C: Whether passwords are in the clear, or encrypted, lockout does not protect the actual
password as it flows through the system. Password lockout acts as a governor on attempts to
use brute force to guess the actual password. No one is looking for the actual passwords as
they flow through the WAN, this is eavesdropping such as sniffing or snooping, and password
lockout is not a solution for that type of problem.
D: Password locking is highly effective.
Question: 2
Which of the following choices best defines the Windows NT security account manager?
A. It is the portion of the GINA DLL that controls security
B. It is the database containing the identity of the users and their credentials
C. It is the name of the machine responsible for the management of all the security of the LAN
D. It is the interface that is responsible for logging on and user IDs
Answer: B
Explanation:
The Windows NT security account manager, a.k.a “the SAM” is a set of files that make up the
database where user and password information is stored.
Incorrect Answers:
A: The GINA DLL is called to process the logon request. It is only the logon interface that
interacts with the user. Eventually the information gathered has to be compared to the SAM,
so GINA DLL may USE the SAM, but it does not fit as a definition of the SAM.
C: The machine(s) in Windows NT responsible for security on the LAN is either the Windows NT
machine itself (if using local security) or a PDC/BDC domain controller if using Domain
accounts. The name of any such machine does not fall in the definition of the SAM.
D: Since the GINA DLL is part of that interface, see the explanation in A above.
Question: 3
Under the level C2 security classification, what does “discretionary access control” mean?
A. Discretionary access control means that the owner of a resource must be able to use that
resource
B. Discretionary access control is the ability of the system administrator to limit the time any user
spends on a computer
C. Discretionary access control is a policy that limits the use of any resource to a group or a
security profile
D. Discretionary access control is a rule set by the security auditor to prevent others from
Downloading unauthorized scripts or programs.
Answer: A
Explanation:
This is a definition, and basically it says that the owner of the resource should be able to use the
resource. The point is simple, what good is a security system if no one can do their work. Some
people will joke that the most secure system is a system that is powered off. And in some senses,
this is correct, if the computer is powered off, no code is executed, so no damage can occur. But
there would be no discretionary access since the owners of the resources would not be able to
use those resources.
Incorrect Answers:
B,C,D: are wrong because they do not fall into the definition, as explained above.
Question: 4
Michel wants to write a computer virus that will cripple UNIX systems. What is going to be the
main obstacle preventing him from success?
A. UNIX computers are extremely difficult to access illicitly over the internet, and therefore
computer viruses are not an issue with UNIX systems
B. Due to the file permission structure and the number of variations in the UNIX hardware
architectures, a virus would have to gain root privileges as well as identify the hardware and
UNIX flavor in use.
C. Due to availability of effective free anti-virus tools, computer viruses are caught early and
often. Michel’s virus would have to evade detection for it to succeed.
D. Due to the extensive use of ANSI “C” in the programming of UNIX, the virus would have to
mimic some of the source code used in the infected iteration of the UNIX operating system
Answer: B
Explanation:
Unix has a strong permission structure that in order to breach the system, root privilege will be
required. Root is a superuser account, and is kept locked up by a secure system because of the
power that the root user has. Hardware variations will make the use of machine and assembly
language difficult. Most viruses depend on modifying machine instructions, and the instruction set
can vary widely. Since Unix is written in C language, the operating system is very portable. But to
write an effective virus, the use of machine language is NOT portable, so the virus will not really
work on all platforms.
Incorrect Answers:
A: Unix systems are easy to access, and many accounts get cracked due to easy passwords or
no passwords at all. However, from the accounts that do get accessed, not much damage can
be done. The root account has to be breached in order to do some serious damage.

Question: 5
What is the name of the electronic funds transfer (EFT) system governed by the United States
and designed to provide the clearing of electronic payments between banks?
A – The National Clearing House (NCH) network
B – The Automated Clearing House (ACH) network
C – The Receiving Depository Financial Institution (RDFI)
B – The Originating Depository Financial Institution (ODFI)
Answer: B

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