Answer: B 

Explanation: 

With employees who want to bring their own devices you will have to make them understand why they cannot. You do not want them plugging in a flash drive, let alone a camera, smartphone, tablet computer, or other device, on which company fi les could get intermingled with personal files. Allowing this to happen can create situations where data can leave the building that shouldn’t as well as introduce malware to the system. Employees should not sync unauthorized smartphones to their work systems. Some smartphones use multiple wireless spectrums and unwittingly open up the possibility for an attacker in the parking lot to gain access through the phone to the internal network. Thus if you do not have controls in place then your network is definitely at risk. 

Answer: A 

Explanation: 

The most important countermeasure against password crackers is to use long, complex passwords, which are changed regularly. Since changes were made to Ann’s desktop configuration settings while she was not at work, means that her password was compromised. 

Answer:  

Answer: D 

Explanation: 

Answer: A 

Explanation: 

A demilitarized zone (DMZ) is an area of a network that is designed specifically for public users to access. The DMZ is a buffer network between the public untrusted Internet and the private trusted LAN. Often a DMZ is deployed through the use of a multihomed firewall. 

Answer: A,E 

Explanation: 

A brute force attack is an attack that attempts to guess a password. WPA2-PSK and WEP both use a “Pre-Shared Key”. The pre-shared key is a password and therefore is susceptible to a brute force attack. 

Answer: B 

Explanation: 

Answer: A,E 

Explanation: 

Joe wants to send a message to Ann. It’s important that this message not be altered. Joe will use the private key to create a digital signature. The message is, in effect, signed with the private key. Joe then sends the message to Ann. Ann will use the public key attached to the message to validate the digital signature. If the values match, Ann knows the message is authentic and came from Joe. Ann will use a key provided by Joe—the public key—to decrypt the message. Most digital signature implementations also use a hash to verify that the message has not been altered, intentionally or accidently, in transit. Thus Ann would compare the signature area referred to as a message in the message with the calculated value digest (her private key in this case). If the values match, the message hasn’t been tampered with and the originator is verified as the person they claim to be. This process provides message integrity, nonrepudiation, and authentication. A certificate authority (CA) is an organization that is responsible for issuing, revoking, and distributing certificates. A certificate is nothing more than a mechanism that associates the public key with an individual. If Joe wants to send Ann an encrypted e-mail, there should be a mechanism to verify to Ann that the message received from Mike is really from Joe. If a third party (the CA) vouches for Joe and Ann trusts that third party, Ann can assume that the message is authentic because the third party says so. 

Answer: A 

Explanation: 

An armored virus is a type of virus that has been designed to thwart attempts by analysts from examining its code by using various methods to make tracing, disassembling and reverse engineering more difficult. An Armored Virus may also protect itself from antivirus programs, making it more difficult to trace. To do this, the Armored Virus attempts to trick the antivirus program into believing its location is somewhere other than where it really is on the system. 

Answer: C 

Explanation: 

Warm sites provide computer systems and compatible media capabilities. If a warm site is used, administrators and other staff will need to install and configure systems to resume operations. For most organizations, a warm site could be a remote office, a leased facility, or another organization with which yours has a reciprocal agreement.