CSCI 290 Final

The Linux log file that can reveal attempts to compromise the system or the presence of a virus or spyware is

/var/log/apport.log

What size key does a DES system use?

56 Bit

A good password has at least ______ characters.

8

What is the highest level of security you can expect to obtain?

A level of security that makes the effort required to get information more than the value of the information

A password policy for a 90- or 180-day replacement schedule is called password

Age

Which of the following is a list of items that should be implemented in all secure code?

All code checked for backdoors or Trojans, all buffers have error handling to prevent buffer overruns, all communication adheres to organizational guidelines, all communication activity thoroughly documented

In the context of preventing industrial espionage, why might you wish to limit the number of company CD burner and control access to them in your organization?

An employee could use such media to take sensitive data out

What method do most IDS software implementations use?

Anomaly detection

Which of the following methods uses a variable-length symmetric key?

Blowfish

A propaganda agent can manage multiple online personalities, posting to many different

Bulletin boards and discussion groups

Which of the following is the appropriate sequence for a change request?

Business unit manager requests change > IT unit verifies request > security unit verifies request > request is scheduled with rollback plan > request is implemented

Which of the following is the oldest encryption method discussed in this text?

Caesar cipher

What should an employee do if she believes her password has been revealed to another party?

Change your own password immediately

Which of the following most accurately defines encryption?

Changing a message so it can only be easily read by the intended recipient

Chinese hackers whose stated goal is to infiltrate Western computer systems are called the

China Eagle Union

________ can include logs, portable storage, emails, tablets, and cell phones.

Computer evidence

Most companies perform the same _________ background check of network administrators as they do of any other person.

Cursory

Which of the following is a symmetric key system using 64-bit blocks?

DES

What is the greatest security risk to any company?

Disgruntled employees

A(n) ________attack on data can include stealing or destroying data.

Economic

Which of the following is not a significant security risk posed by instant messaging?

Employees may send harassing messages

Which of the following does not demonstrate the need for policies?

End users are generally not particularly bright and must be told everything

A digital signature is used to guarantee who sent a message. This is referred to as non-repudiation.

False

A good password should contain only letters and numbers.

False

For individual computers not running firewall software, you should directly close ports.

False

Most Windows logs are turned on automatically.

False

Snort is an open-source firewall.

False

The Patriot Act was the first U.S. law to criminalize theft of commercial trade secrets.

False

The method to attract an intruder to a subsystem setup for the purpose of observing him is called intrusion deterrence.

False

www.yahoo.people.com is the website for Yahoo! People Search.

False

The Windows command fc lists all active sessions to the computer.

False Ñ The command net sessions lists any active sessions connected to the computer you run it on

Which of the following should not be recommended as acceptable email attachments?

Flash animations

In Windows the log that contains events collected from remote computers is the ____________ log.

Forwardedevents

The process to make a system as secure as it can be without adding on specialized software or equipment is

Hardening

Which of the following is not one of the basic types of firewalls?

Heuristic firewall

What is the name for scanning that depends on complex rules to define what is and is not a virus?

Heuristic scanning

What should you be most careful of when looking for an encryption method to use?

How long the algorithm has been around

Which of the following is the appropriate sequence of events for a departing employee?

IT is notified of the departure > all logon accounts are shut down > all access (physical and electronic) is disabled > the employee's workstation is searched/scanned

Which of the following is the appropriate sequence of events for a new employee?

IT is notified of the new employee and the requested resources > employee is granted access to those resources > employee is briefed on security/acceptable use > employee signs acknowledging receipt of a copy of security rules

A discarded credit card receipt or utility bill could be the starting point from which a perpetrator finds enough information to assume a victim's

Identity

Which of the following is not an area that user policies need to cover?

If and when to share passwords

Why is binary mathematical encryption not secure?

It does not change letter or word frequency

What advantage does a symmetric key system using 64-bit blocks have?

It is fast

Which of the following is most likely to be true of an encryption method that is advertised as unbreakable?

It is likely to be exaggerated

What is the main problem with simple substitution?

It maintains letter and word frequency

Which of the following is a likely reason that an organization might be reluctant to admit it has been a victim of corporate espionage?

It might cause stock value to decline

Which of the following is a disadvantage to using an application gateway firewall?

It uses a great deal of resources

What is a major weakness with a network host-based firewall?

Its security is depended on the underlying operating system

What is one way of checking emails for virus infections?

Look for subject lines that are from known virus attacks

In 1996 a hacker allegedly associated with the white supremacist movement temporarily disabled a ___________ ISP.

Massachusetts

Which of the following is an encryption method using two or more different shifts?

Multi-alphabet encryption

On a server, you should create your own accounts with ________ that do not reflect their level of permission.

Names

What is the difference between corporate and industrial espionage?

None: they are interchangeable terms

After dealing, on a technical level, with any security breach, what is the last thing to be done for a security breach?

Notify management

Probing your network for security flaws should occur once a quarter, and a complete audit of your security should be completed ________ per year.

Once

Which of the following methods is available as an add-in for most email clients?

PGP

Although the Cyberterrorism Preparedness Act of 2002 was not passed, many of its goals were addressed by the

Patriot Act

Any _________ you do not explicitly need should be shut down.

Ports

What is PGP?

Pretty Good Privacy, a public key encryption method

What type of encryption uses different keys to encrypt and decrypt the message?

Public key

What is the first step when discovering a machine(s) has been infected with a virus?

Quarantine infected machine(s)

The rule that packets not originating from inside your LAN should not be forwarded relates to

Routers

What is the term for a firewall that is simply software installed on an existing server?

Screened host

Which of the following is the most basic type of firewall?

Screening firewall

Many states have online __________ registries.

Sex offender

There have been cases of mistaken identity with _________lists

Sex offender

What is SPI?

Stateful packet inspection

Hackers want information about a target person, organization, and _______ to assist in compromising security.

System c. Clothing size System

What are TSR programs?

Terminate and Stay Resident programs that actually stay in memory after you shut them down

What is the rule in access control?

The least access job requirements allow

Frequently the first responder to a computer crime is

The network administrator

Which of the following is most true regarding certified encryption methods?

There is no such thing as certified encryption

Which of the following is most true regarding binary operations and encryption?

They can form a part of viable encryption methods

Which of the following is the best reason users should be prohibited from installing software?

They may install software that circumvents security

What must all user policies have in order to be effective?

They must have consequences

Which of the following is the most common way for a virus scanner to recognize a virus?

To compare a file to known virus attributes

What is the best outcome for a spy attempting an espionage activity?

To obtain information without the target even realizing he did so

What is the reason for encrypting hard drives on laptop computers?

To prevent a thief from getting data off a stolen laptop

A discarded credit card receipt may become the starting point from which an identity fraud perpetrator finds enough information to assume the victim's identity.

True

Frequently the first responder to a computer crime is the network administrator.

True

Hiding a message in images is an example of stenography.

True

Information warfare is any attempt to manipulate information in pursuit of a military or political goal.

True

Kerberos is an authentication protocol that uses a ticket granting system that sends an encrypted ticket to the user's machine.

True

Microsoft Windows includes BitLocker in some editions, so entire hard drives can be encrypted.

True

One technique of disinformation is to pad a message with noise that the enemy will perceive as valuable information.

True

Radio Free Europe was supported by Western democracies during the Cold War.

True

The U.S. Patriot Act specifically deals with cyberterrorism.

True

The most widely used symmetric key algorithm is Advanced Encryption Standard.

True

There are no restrictions on information you can post on Usenet.

True

There should be a firewall between your network and the outside world.

True

When an administrator proactively seeks out intelligence on potential threats or groups, this is called infiltration.

True

Windows stores web browsing information in a file called index.dat.

True

Which of the following is not an example of a user password policy?

Users may only share passwords with their assistant

The ________ War was the first modern war in which there was strong and widespread domestic opposition.

Vietnam

It would be advisable to obtain __________ before running a background check on any person.

Written permission

Which binary mathematical operation can be used for a simple encryption method?

XOR

Which of the following is most true regarding new encryption methods?

You can use them, but you must be cautious

Using Linux to wipe the target drive, the command-line command would be ___ .

dd

Using Linux to backup your hard drive, if you want to create a hash, you would use the command-line command

md5sum

A website that may help locate federal prison records is

www.bop.gov/