Question 1

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 the...

Question 2

____ 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 data over a wider bandwidth, making it more difficult for unauthorized users to intercept or jam the transmission. The other options listed (3DES, AES, PKI) are encryption technologies and not directly related to spreading data over a wider bandwidth.

Question 3

____________________ 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 4

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 5

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). It was introduced in 1997 as part of the first version of the IEEE 802.11 standard for wireless LANs. However, it was found to have several serious vulnerabilities and was eventually replaced by better security protocols such as WPA and WPA2.

Question 6

_________________________ 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 7

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 amount...

Question 8

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

Accepted Answer

The X.509 standard is widely used for certificates in the public key infrastructure (PKI), particularly for SSL/TLS encryption on websites. The other options (X.309, X.409, and X.609) are not commonly used certificate standards.

Question 9

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 certificates that have been revoked by the certificate authority (CA) before their original expiration date. This is important for maintaining the security of a public key infrastructure (PKI) because it allows entities to verify that a certificate has not been compromised or tampered with. CRLs are typically used in conjunction with digital certificates and public key cryptography.

Question 10

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...

Question 11

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 12

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

The packet filter firewall examines each packet that passes through and determines whether to allow or block it based on certain criteria such as IP addresses, port numbers, and protocols. Unlike a proxy server, it does not modify or redirect traffic, and unlike a switch or hub, it can selectively block traffic based on the defined rules.

Question 13

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 14

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 trap that...

Question 15

____ 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 a comprehensive security solution that includes encryption techniques, software, and services to facilitate secure communication over the internet or other networks. It involves the use of digital certificates, certificate authorities, and public key generation, storage, and management to secure data and transactions. PKI ensures the authenticity, integrity, and confidentiality of data by using a combination of encryption, hashing, and digital signatures.

Question 16

____ 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 (DSSS) uses mathematical values to spread the transmission of a signal over a wide range of frequencies. It does this by transmitting the signal simultaneously on multiple frequencies, each using a unique sequence of bits known as a spreading code. This helps to increase the signal's resistance to interference and enables multiple users to share the same frequency band without causing interference to each other. Frequency hopping spread spectrum (FHSS) spreads the signal over a wide range of frequencies by rapidly switching between them at regular intervals, while time hopping spread spectrum (THSS) spreads the signal over time by transmitting short pulses at different time intervals. Amplitude sequence spread spectrum (ASSS) is not a recognized spread spectrum technique.

Question 17

____ 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 involves comparing the code of a suspect file against a database of known malware signatures. If the suspect file's code matches a known malware signature, the file is flagged as malware. Therefore, it is an effective way to recognize the unique pattern of a virus. The other options (time-based, amplitude-based, and frequency-based) are not related to virus scanning.

Question 18

____________________ 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 19

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 20

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 a technique used in addition to signature-based scanning and terminate-and-stay-resident monitoring to ensure that critical system files have not been modified by malware. This can help detect and prevent new, unknown threats that may not yet have a signature in the antivirus database. Time division, direct sequence, and frequency hopping are all techniques used in different types of wireless communication and are not directly related to antivirus protection.

Quiz 12: Network Security

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.

____________________ 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.

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

The first security protocol for wireless LANs was ____.

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

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

Many certificates conform to the ____ standard.

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

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.

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 ____________________.

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

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.

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

____ 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.

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

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

____________________ 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.

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