The Architecture of computer hardware,systems software and networking and Also business data communications Document Preview: Englander,Irv ( 2009)The Architecture of Computer Hardware & Systems...

Architecture of computer Hardware ,systms, net, and business data communications
1.Retail point of sale systems are an example of horizontal partitioning of data processing.
a. True
b. False
b. False
2.The three ways of organizing data for use by an organization are
a. centralized, replicated, and partitioned.
b. centralized, structured, and partitioned.
c. structured, replicated, and partitioned.
d. centralized, replicated, and structured.
e. distributed, replicated, and partitioned.
b. centralized, structured, and partitioned.
3.The first two important applications developed for the ARPANET where
a. Telnet and FTP.
b. Telnet and email.
c. Telnet and world-wide-web.
d. FTP and email.
e. Email and world-wide-web
b. Telnet and email.
4.The Domain Name System (DNS) is comprised of four elements. Which of the following is NOT one of these
elements?
a. The domain name space
b. IP addresses
c. DNS database
d. Name servers
e. Resolvers
b. IP addresses
Architecture of computer Hardware ,systms, net, and business data communications
5.A router is a more complex intermediate system than a bridge.
a. True
b. False
a. True
6.In a 3-tier client-server implementation, the client is typically a “thin client.”
a. True
b. False
a. True
7.Which of the following is not a class of client/server processing?
a. Host-based processing
b. Server-based processing
c. Client-based processing
d. Cooperative processing
e. Network-based processing
e. Network-based processing
8.SMTP does not place any requirements on the contents or message bodies of mail it processes.
a. True
b. False
b. False
9.A widely used extension to the RFC 822 framework that expands what can be sent via email is called
a. MIME.
b. ASCII.
c. VoIP.
d. SMTP.
e. IMAP.
a. MIME.
10.The Internet and the Internet Protocol is designed to provide differentiated services depending on whether
traffic is elastic or inelastic.
a. True
b. False
a. True
11.A QoS facility allows the Internet to treat all classes of traffic equally in order to optimize the services
provided to all users.
a. True
b. False
Architecture of computer Hardware ,systms, net, and business data communications
b. False
12.Having multiple paths from one station to another through a network contributes to reliability.
a. True
b. False
a. True
13.The major application that uses circuit switching networks is the telephone system, thus most data
transferred using this type of network is voice traffic.
a. True
b. False
a. True
14.Data communications via circuit switching involves three phases. These phases are
a. connect, transfer, hangup
b. ring, talk, hangup
c. dial, transfer, disconnect
d. establishment, data transfer, disconnect
e. establishment, multiplex, hangup
d. establishment, data transfer, disconnect
Part II. Essay questions – 9 questions
1. Following are the features which are common in the data link layer and transport
layer:

1. Flow control is provided by both the layers.
2. Multiplexing is supported by both the layers.
.
Following are the features they differ in:
1. The transport layer is an end to end mechanism which involves the peer processes communication athwart
the network. The data link layer is also end to end but the peer to peer communication takes place only
across a single hop. So the time taken for traversing a network is much greater than the time for traversing a
data link. As a result, larger backlog of PDUs can be managed easily with transport...