Deck 12: Electronic Commerce Systems

Question 1

The network paradox is that networks exist to provide user access to shared resources while one of its most important objectives is to control access.

Answer 1

True

Question 2

Electronic commerce refers only to direct consumer marketing on the Internet.

Answer 2

False

Question 3

Sniffing is the unauthorized transmitting of information across an Intranet.

Answer 3

False

Question 4

Only two types of motivation drive DoS attacks: 1)to punish an organization with which the perpetrator had a grievance; and 2)to gain bragging rights for being able to do it.

Question 5

The standard format for an e-mail address is DOMAIN NAME@USER NAME.

Question 6

The phrase .com has become an Internet buzz word.It refers to a top-level domain name for communications organizations.

Question 7

Because of network protocols,users of networks built by different manufacturers are able to communicate and share data.

Question 8

IP spoofing is a form of masquerading to gain unauthorized access to a Web server.

Question 9

Cookies are files created by user computers and stored on Web servers.

Question 10

The client-server model can only be applied to ring and star topologies.

Question 11

A distributed denial of service (DDoS)attack may take the form of a SYN flood but not a smurf attack.

Question 12

A network topology is the physical arrangement of the components of the network.

Question 13

Business risk is the possibility of loss or injury that can reduce or eliminate an organization's ability to achieve its objectives.

Question 14

A factor that contributes to computer crime is the reluctance of many organizations to prosecute criminals for fear of negative publicity.

Question 15

A digital signature is a digital copy of the sender's actual signature that cannot be forged.

Question 16

The rules that make it possible for users of networks to communicate are called protocols.

Question 17

Business to consumer is the largest segment of Internet commerce.

Question 18

The bus topology connects the nodes in parallel.

Question 19

A smurf attack involves three participants: a zombie,an intermediary,and the victim.

Question 20

A bus topology is less costly to install than a ring topology.

Question 21

A certification authority is an independent and trusted third party empowered with responsibility to vouch for the identity of organizations and individuals engaging in Internet commerce.

Question 22

Polling is one technique used to control data collisions.

Question 23

HTML tags are customized to delimit attributes,the content of which can be read and processed by computer applications.

Question 24

Cloud computing is the technology that has unleashed virtualization.

Question 25

A virtual private network:

A) is a password-controlled network for private users rather than the general public.
B) is a private network within a public network.
C) is an Internet facility that links user sites locally and around the world.
D) defines the path to a facility or file on the web.
E) none of the above is true.

Question 26

A ping is an Internet maintenance tool that is used to test the state of network congestion and determine whether a particular host computer is connected and available on the network.

Question 27

The most frequent use of EDI is in making vendor payments.

Question 28

In a hierarchical topology,network nodes communicate with each other via a central host computer.

Question 29

EDI is the inter-company exchange of computer processible business information in standard format.

Question 30

To physically connect a workstation to a LAN requires a

A) file server
B) network interface card
C) multiplexer
D) bridge

Question 31

The intermediary in a smurf attack is also a victim.

Question 32

One advantage of network technology is

A) bridges and gateways connect one workstation with another workstation
B) the network interface card permits different networks to share data
C) file servers permit software and data to be shared with other network users
D) a universal topology facilitates the transfer of data among networks

Question 33

A ping is used to test the state of network congestion and determine whether a particular host computer is connected and available on the network.

Question 34

A ping signal is used to initiate

A) URL masquerading
B) digital signature forging
C) Internet protocol spoofing
D) a smurf attack
E) none of the above is true

Question 35

What do you call a system of computers that connects the internal users of an organization that is distributed over a wide geographic area?

A) LAN
B) decentralized network
C) multidrop network
D) Intranet

Question 36

Which topology has a large central computer with direct connections to a periphery of smaller computers? Also in this topology,the central computer manages and controls data communications among the network nodes.

A) star topology
B) bus topology
C) ring topology
D) client/server topology

Question 37

Packet switching

A) combines the messages of multiple users into one packet for transmission.At the receiving end,the packet is disassembled into the individual messages and distributed to the intended users.
B) is a method for partitioning a database into packets for easy access where no identifiable primary user exists in the organization.
C) is used to establish temporary connections between network devices for the duration of a communication session.
D) is a denial of service technique that disassembles various incoming messages to targeted users into small packages and then reassembles them in random order to create a useless garbled message.

Question 38

Network protocols fulfill all of the following objectives except

A) facilitate physical connection between network devices
B) provide a basis for error checking and measuring network performance
C) promote compatibility among network devices
D) result in inflexible standards

Question 39

Cloud computing is decreasing as hardware resources become cheaper because acquisition of resources is slow and not scalable.

Question 40

The more individuals that need to exchange encrypted data,the greater the chance that the key will become known to an intruder.To overcome this problem,private key encryption was devised.

Question 41

An IP Address:

A) defines the path to a facility or file on the web.
B) is the unique address that every computer node and host attached to the Internet must have.
C) is represented by a 64-bit data packet.
D) is the address of the protocol rules and standards that governing the design of internet hardware and software.
E) none of the above is true.

Question 42

NNTP

A) is the document format used to produce Web pages.
B) controls Web browsers that access the Web.
C) is used to connect to Usenet groups on the Internet
D) is used to transfer text files,programs,spreadsheets,and databases across the Internet.
E) is a low-level encryption scheme used to secure transmissions in higher-level (HTTP)format.

Question 43

All of the following are true about the Open System Interface (OSI)protocol except

A) within one node different layers communicate with other layers at that node
B) one protocol is developed and applied to all the OSI layers
C) specific layers are dedicated to hardware tasks and other layers are dedicated to software tasks
D) layers at each node communicate logically with their counterpart layers across nodes

Question 44

Which method does not manage or control data collisions that might occur on a network?

A) multiplexing
B) polling
C) carrier sensing
D) token passing

Question 45

IP spoofing

A) combines the messages of multiple users into a "spoofing packet" where the IP addresses are interchanged and the messages are then distributes randomly among the targeted users.
B) is a form of masquerading to gain unauthorized access to a web server.
C) is used to establish temporary connections between network devices with different IP addresses for the duration of a communication session.
D) is a temporary phenomenon that disrupts transaction processing.It will resolve itself when the primary computer completes processing its transaction and releases the IP address needed by other users.

Question 46

A message that is made to look as though it is coming from a trusted source but is not is called

A) a denial of service attack
B) digital signature forging
C) Internet protocol spoofing
D) URL masquerading

Question 47

The client/server technology

A) increases the amount of data that is transmitted between the central file and the network node
B) eliminates the need for nodes to communicate with each other
C) reduces the number of records that must be locked by having the file server perform record searches
D) functions only with a ring and bus topology

Question 48

Which one of the following statements is correct?

A) Cookies always contain encrypted data.
B) Cookies are text files and never contain encrypted data.
C) Cookies contain the URLs of sites visited by the user.
D) Web browsers cannot function without cookies.

Question 49

Sniffer software is

A) software used by malicious Web sites to sniff data from cookies stored on the user's hard drive
B) used by network administrators to analyze network traffic
C) used by bus topology Intranets to sniff for a carrier before transmitting a message to avoid data collisions
D) illegal programs downloaded from the Net to sniff passwords from the encrypted data of Internet customers

Question 50

A digital signature is

A) the encrypted mathematical value of the message sender's name
B) derived from the digest of a document that has been encrypted with the sender's private key
C) the computed digest of the sender's digital certificate
D) allows digital messages to be sent over analog telephone lines

Question 51

In a ring topology

A) the network consists of a central computer which manages all communications between nodes
B) has a host computer connected to several levels of subordinate computers
C) all nodes are of equal status; responsibility for managing communications is distributed among the nodes
D) information processing units rarely communicate with each other

Question 52

In a ring topology

A) all nodes are of equal status
B) nodes manage private programs and databases locally
C) shared resources are managed by a file server which is a node on the ring
D) all of the above

Question 53

A distributed denial of service (DDoS)attack

A) is more intensive that a Dos attack because it emanates from single source
B) may take the form of either a SYN flood or smurf attack
C) is so named because it effects many victims simultaneously,which are distributed across the internet
D) turns the target victim's computers into zombies that are unable to access the Internet
E) none of the above is correct

Question 54

Which of the following statements is correct? The client-server model

A) is best suited to the token-ring topology because the random-access method used by this model detects data collisions.
B) distributes both data and processing tasks to the server's node.
C) is most effective used with a bus topology.
D) is more efficient than the bus or ring topologies.

Question 55

FTP

A) is the document format used to produce Web pages.
B) controls Web browsers that access the Web.
C) is used to connect to Usenet groups on the Internet
D) is used to transfer text files,programs,spreadsheets,and databases across the Internet.
E) is a low-level encryption scheme used to secure transmissions in higher-level ()format.

Question 56

The primary difference between a LAN and a WAN is

A) the geographical area covered by the network
B) the transmission technology used
C) the type of workstation used
D) the size of the company

Question 57

A star topology is appropriate

A) for a wide area network with a mainframe for a central computer
B) for centralized databases only
C) for environments where network nodes routinely communicate with each other
D) when the central database does not have to be concurrent with the nodes

Question 58

Which of the following statements is correct? TCP/IP

A) is the basic protocol that permits communication between Internet sites.
B) controls Web browsers that access the WWW.
C) is the file format used to produce Web pages.
D) is a low-level encryption scheme used to secure transmissions in HTTP format.

Question 59

HTML

A) is the document format used to produce Web pages.
B) controls Web browsers that access the Web.
C) is used to connect to Usenet groups on the Internet.
D) is used to transfer text files,programs,spreadsheets,and databases across the Internet.
E) is a low-level encryption scheme used to secure transmissions in higher-level ()format.

Question 60

In a star topology,when the central site fails

A) individual workstations can communicate with each other
B) individual workstations can function locally but cannot communicate with other workstations
C) individual workstations cannot function locally and cannot communicate with other workstations
D) the functions of the central site are taken over by a designated workstation

Question 61

Describe an advantage to the client/server topology.

Question 62

What is an extranet?

Question 63

When are a bridge and with a gateway used to connect networks?

Question 64

What is a URL?

Question 65

The provision of computing power and disk space to client firms who access it from desktop PCs is known as

A) Computing-as-a-Service
B) Infrastructure-as-a-Service
C) Platform-as-a-Service
D) Software-as-a-Service

Question 66

What is spoofing?

Question 67

Describe one primary advantage of polling as a network control method.

Question 68

What is a ping?

Question 69

List at least five top-level domain names used in the United States.

Question 70

What are cookies and why are they used?

Question 71

This class of cloud computing enables client firms to develop and deploy onto the cloud infrastructure consumer-generated applications using facilities provided by the vendor.

A) Computing-as-a-Service
B) Infrastructure-as-a-Service
C) Platform-as-a-Service
D) Software-as-a-Service

Question 72

Which of the following statements is correct?

A) Packet switching combines the messages of multiple users into a "packet" for transmission.At the receiving end,the packet is disassembled into the individual messages and distributed to the intended users.
B) The decision to partition a database assumes that no identifiable primary user exists in the organization.
C) Packet switching is used to establish temporary connections between network devices for the duration of a communication session.
D) A deadlock is a temporary phenomenon that disrupts transaction processing.It will resolve itself when the primary computer completes processing its transaction and releases the data needed by other users.

Question 73

HTTP

A) is the document format used to produce Web pages.
B) controls Web browsers that access the Web.
C) is used to connect to Usenet groups on the Internet
D) is used to transfer text files,programs,spreadsheets,and databases across the Internet.
E) is a low-level encryption scheme used to secure transmissions in higher-level ()format.

Question 74

Which of the following is not a key feature of cloud computing?

A) Acquisition of resources is rapid and infinitely scalable.
B) Client firms can acquire IT resources from vendors on demand and as needed.
C) Computing resources are pooled to meet the needs of multiple client firms.
D) Individual clients have control over the physical location of the service being provided.

Question 75

Explain the parts of an e-mail address and give an example (your own?).

Question 76

What is an IRC?

Question 77

What is packet switching?

Question 78

Name the three parties involved in a smurf attack.

Question 79

What is an IP address?

Question 80

Name the three types of addresses used on the Internet.