Exam 9: Network and Internet Security

When you send someone an encrypted message using public key encryption,only a public key is necessary to decrypt it.

A ____ provides a secure private tunnel from the user's computer through the Internet to another destination and is most often used to provide remote employees with secure access to a company network.

Case 9-1 Melissa is the network administrator for a small publishing company.As network administrator,she is in charge of maintaining the security of all the computers that are part of the company's network. -One of the first items that Melissa installed was a(n)____,which checks all incoming and outgoing traffic and only allows authorized traffic to pass through.

____________________ access refers to individuals gaining access to a computer,network,file,or other resource without permission.

Denial of service attacks are usually of insignificant cost in terms of business lost.

Older 40-bit encryption (which can only use keys that are 40 bits or 5 characters long)is considered ____________________.

Biometric access systems use a(n)____________________ in conjunction with software and a database to match the supplied biometric data with the biometric data previously stored in the database to identify and authenticate an individual.

Case 9-1 Melissa is the network administrator for a small publishing company.As network administrator,she is in charge of maintaining the security of all the computers that are part of the company's network. -Melissa also decided to use a(n)____,which continuously monitors and analyzes the traffic allowed to and from the network to detect possible attacks as they are occurring and block them.

A computer ____ is a software program that is installed without the permission or knowledge of the computer user,that is designed to alter the way a computer operates,and that can replicate itself to infect any new media it has access to.

USB security keys are also called USB security tokens.

Digital certificates are obtained from a(n)____________________ and typically contain the name of the person,organization,or Web site being certified along with a certificate serial number,an expiration date,and a public/private key pair.

Numeric passwords are also referred to passcodes.

A fingerprint recognition system is typically used to protect access to office computers,to automatically supply Web site passwords on home computers,and to pay for products or services.

Internet offer scams include a wide range of scams offered through Web sites or unsolicited e-mails.

A firewall is a security system that essentially creates a barrier between a computer or network and the Internet in order to protect against unauthorized access.

The term ____ refers to accessing someone else's unsecured Wi-Fi network from the hacker's current location (such as inside his or her home,outside a Wi-Fi hotspot location,or near a local business).

A computer ____ spreads by creating copies of its code and sending those copies to other computers via a network.

____ uses a single secret key to both encrypt and decrypt the file or message.

A ____ is a security system that essentially creates a wall between a computer or network and the Internet in order to protect against unauthorized access.

Identification systems determine whether or not the person attempting access is actually who he or she claims to be.