Information System Ch.6

10 September 2022
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16 test answers

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question
Teleaction reduces the need for local support staff.
answer
False
question
Broadband lines typically have transmission speeds less than 56 Kbps.
answer
False.Broadband lines have speeds in excess of 256 Kbps.
question
Amazon EC2 and Amazon S3 are both examples of platform as a service
answer
False. Both are example of Iaas (Infrastructure as a service).
question
A packet is a piece of a message that is handled by programs that implement IP.
answer
True
question
Which of the following statements is true about the IEEE 802.11 protocol?
answer
It allows speeds of up to 600 Mbps. 802.11n allows speeds of up to 600 Mbps for WIRELESS LAN connection 802.3 also called Ethernet is for WIRED LAN connection IEEE = Institute for Electrical and Electronics Engineers (pronounced "I triple E")
question
Which of the following protocols is concerned with the application layer of TCP/IP Protocol architecture?
answer
HTTP. Top layer = concerns protocols for applications such as browsers and Web servers Next Two layer = about data communications across any internet (note the small I; this means any network of networks), including the Internet Bottom Two layer = involve protocols that concern data transmission within a network. (ex: IEEE 802.3 and 802.11 LAN protocols operate at the bottom two layers)
question
Web servers run on a server-tier computer and manage HTTP traffic by sending and receiving Web pages to and from clients.
answer
True
question
Which of the following is the most common format for IP addresses?
answer
IPv4. IP addresses have two formats. IPv4 has a four-decimal dotted notation such as 165.193.123.253 IPv6 has a longer format and will not concern us here
question
DSL modems use their own protocols for data transmission
answer
True
question
Which of the following is true of DSL modems?
answer
DSL modem signals do not interfere with telephone signals. β€’ DSL modem is the first modem type, stands for digital subscriber line β€’ Operate on the same lines as voice telephones, but they operate so that their signals do not interfere with voice telephone service. β€’ DSL data transmission and telephone conversations can occur simultaneously β€’ Use their own protocols for data transmission β€’ DSL lines have different upload and download speeds (ADSL)
question
A(n) ________ is a number that identifies a particular device.
answer
IP address
question
TCP provides internet routing and IP provides reliable internet transport
answer
False. It is the opposite of each other.
question
ICANN controls the assignment of all IP addresses, both public and private
answer
False. Only Public.
question
If you had a private IP address for your computer, every time you moved it, the Internet would have to update its addressing mechanisms to route traffic to your new location.
answer
False.
question
The ________ tier of three-tier architecture consists of computers, phones, and other devices that have browsers that request and process Web pages.
answer
User. Three-tier-system = which is an arrangement of user computers and servers into 3 categories 1st User Tier = consists of computers, phones, and other mobile devices that have browsers that request and process Web pages. 2nd Server Tier = consists of computers that run Web servers and process application programs. 3rd Database Tier = consists of computers that run a DBMS that processes requests to retrieve and store data
question
A cloud vendor who provides hosted computers, an operating system, and a DBMS is offering which of the following services?
answer
PaaS