Question 1

A ____ is a list of certificates that have been revoked before their originally scheduled expiration date.
A)PKI
B)public key cryptography
C)digital certificate
D)certificate revocation list (CRL)

Accepted Answer

A certificate revocation list (CRL) is a list of digital certificates that have been revoked by the issuing certification authority before their scheduled expiration date. This is done to alert users and systems not to trust the revoked certificates. CRLs are an important component of PKI (Public Key Infrastructure) and are used to maintain the security and integrity of digital certificates.

Question 2

The first security protocol for wireless LANs was ____.
A)Wi-Fi Protected Access (WPA)
B)Wired Equivalency Protocol (WEP)
C)IPsec
D)IEEE 802.11i

Accepted Answer

The first security protocol for wireless LANs was Wired Equivalency Protocol (WEP).

Question 3

In ____________________, a perpetrator sends an excessive amount of unwanted e-mail messages to someone.

Accepted Answer

The answer of In ____________________, a perpetrator sends an excessive...

Question 4

____ is the combination of encryption techniques, software, and services that involves all the necessary pieces to support digital certificates, certificate authorities, and public key generation, storage, and management.
A)3DES
B)Advanced Encryption Standard (AES)
C)Data Encryption Standard (DES)
D)Public key infrastructure (PKI)

Accepted Answer

Public key infrastructure (PKI) is the combination of encryption techniques, software, and services that supports digital certificates, certificate authorities, and public key generation, storage, and management. It helps in securing online communication and transactions by providing secure and private communication channels through encryption and digital signatures.

Question 5

IEEE ____ addresses both weaknesses of WEP by allowing the keys, encryption algorithms, and negotiation to be dynamically assigned, and by adopting the AES encryption based on the Rijndael algorithm with 128-, 192-, or 256-bit keys.
A)802.11a
B)802.11b
C)802.11g
D)802.11i

Accepted Answer

IEEE 802.11i addresses both weaknesses of WEP by allowing the keys, encryption algorithms, and negotiation to be dynamically assigned, and by adopting the AES encryption based on the Rijndael algorithm with 128-, 192-, or 256-bit keys.

Question 6

The ____ firewall is essentially a router that has been programmed to filter out certain IP addresses or TCP port numbers.
A)proxy server
B)switch
C)packet filter
D)hub

Accepted Answer

A packet filter is a type of firewall that filters internet traffic based on the IP addresses and port numbers present in the packet headers. It can be implemented as a router that has been programmed to filter out certain IP addresses or TCP port numbers. Proxy servers, switches, and hubs are not specifically designed for packet filtering.

Question 7

____________________ define the network resources that a user or set of users can access.

Accepted Answer

The answer of ____________________ define the network resources that a...

Question 8

A computer ____________________ is a program that copies itself from one system to another over a network, without the assistance of a human being.

Accepted Answer

The answer of A computer ____________________ is a program that...

Question 9

Many certificates conform to the ____ standard.
A)X.309
B)X.409
C)X.509
D)X.609

Accepted Answer

X.509 is the most widely used standard for defining digital certificates. It specifies the format of certificates, as well as the procedures for issuing, revoking, and verifying them. X.309, X.409, and X.609 are not commonly used standards in the context of digital certificates.

Question 10

____________________ techniques that observe and record some aspect of the user, such as voiceprints, fingerprints, eyeprints, and faceprints, appear to be the wave of the future to replace passwords.

Accepted Answer

The answer of ____________________ techniques that observe and record some...

Question 11

In computer terminology, a(n) ____________________ is a trap that is set by network personnel in order to detect unauthorized use of a network resource.

Accepted Answer

The answer of In computer terminology, a(n) ____________________ is a...

Question 12

____ spread spectrum spreads the transmission of a signal over a wide range of frequencies using mathematical values.
A)Frequency hopping
B)Direct sequence
C)Time hopping
D)Amplitude sequence

Accepted Answer

Direct sequence spread spectrum spreads the transmission of a signal over a wide range of frequencies by multiplying the signal with a code sequence consisting of mathematical values. Frequency hopping spread spectrum involves changing the carrier frequency during the transmission, time hopping spread spectrum involves transmitting the signal in short bursts at different times, and amplitude sequence spread spectrum is not a known term in communication systems.

Question 13

_________________________ bombard a computer site with so many messages that the site is incapable of performing its normal duties.

Accepted Answer

The answer of _________________________ bombard a computer site with so...

Question 14

A mobile malicious code is also known as ____________________ because it is hiding inside a harmless-looking piece of code.

Accepted Answer

The answer of A mobile malicious code is also known...

Question 15

____ scanning works by recognizing the unique pattern of a virus.
A)Time-based
B)Amplitude-based
C)Signature-based
D)Frequency-based

Accepted Answer

Signature-based scanning works by recognizing the unique signature or pattern of a virus. It compares the code of the files being scanned to a database of known virus signatures. If a match is found, the antivirus program can take action to remove or quarantine the infected file. Time-based scanning is not a method used to detect viruses, amplitude-based and frequency-based scanning are not common methods of virus detection.

Question 16

An antivirus technique that is used in conjunction with signature-based scanning and terminate-and-stay-resident monitoring is ____.
A)integrity checking
B)time division
C)direct sequence
D)frequency hopping

Accepted Answer

Integrity checking is used in conjunction with signature-based scanning and terminate-and-stay-resident monitoring as an additional layer of protection. It involves regularly checking the integrity of critical system files and comparing them to known good versions to detect any unauthorized changes made by malware. This helps to ensure that any malware that manages to evade signature-based scanning can still be detected and contained. Time division, direct sequence, and frequency hopping are all techniques used in wireless communications and not relevant to antivirus software.

Question 17

A(n) ____________________ is a condition in which the Internet ping program is used to send a flood of packets to a server to make the server inoperable.

Accepted Answer

The answer of A(n) ____________________ is a condition in which...

Question 18

____ technology essentially takes the data to be transmitted and rather than transmitting it in a fixed bandwidth spreads it over a wider bandwidth.
A)Spread spectrum
B)3DES
C)AES
D)PKI

Accepted Answer

Spread spectrum technology spreads the data over a wider bandwidth, making it more secure and difficult to intercept. 3DES, AES, and PKI are not related to this concept of spreading the data over a wider bandwidth.

Question 19

When hackers will even go so far as to create an application that appears to be legitimate and prompts users for an ID and password, the type of attack is termed ____________________.

Accepted Answer

The answer of When hackers will even go so far...

Question 20

A computer ____________________ is a small program that alters the way a computer operates without the knowledge of the computer's users and often does various types of damage.

Accepted Answer

The answer of A computer ____________________ is a small program...

Quiz 12: Network Security

A ____ is a list of certificates that have been revoked before their originally scheduled expiration date.

The first security protocol for wireless LANs was ____.

In ____________________, a perpetrator sends an excessive amount of unwanted e-mail messages to someone.

____ is the combination of encryption techniques, software, and services that involves all the necessary pieces to support digital certificates, certificate authorities, and public key generation, storage, and management.

IEEE ____ addresses both weaknesses of WEP by allowing the keys, encryption algorithms, and negotiation to be dynamically assigned, and by adopting the AES encryption based on the Rijndael algorithm with 128-, 192-, or 256-bit keys.

The ____ firewall is essentially a router that has been programmed to filter out certain IP addresses or TCP port numbers.

____________________ define the network resources that a user or set of users can access.

A computer ____________________ is a program that copies itself from one system to another over a network, without the assistance of a human being.

Many certificates conform to the ____ standard.

____________________ techniques that observe and record some aspect of the user, such as voiceprints, fingerprints, eyeprints, and faceprints, appear to be the wave of the future to replace passwords.

In computer terminology, a(n) ____________________ is a trap that is set by network personnel in order to detect unauthorized use of a network resource.

____ spread spectrum spreads the transmission of a signal over a wide range of frequencies using mathematical values.

_________________________ bombard a computer site with so many messages that the site is incapable of performing its normal duties.

A mobile malicious code is also known as ____________________ because it is hiding inside a harmless-looking piece of code.

____ scanning works by recognizing the unique pattern of a virus.

An antivirus technique that is used in conjunction with signature-based scanning and terminate-and-stay-resident monitoring is ____.

A(n) ____________________ is a condition in which the Internet ping program is used to send a flood of packets to a server to make the server inoperable.

____ technology essentially takes the data to be transmitted and rather than transmitting it in a fixed bandwidth spreads it over a wider bandwidth.

When hackers will even go so far as to create an application that appears to be legitimate and prompts users for an ID and password, the type of attack is termed ____________________.

A computer ____________________ is a small program that alters the way a computer operates without the knowledge of the computer's users and often does various types of damage.