Test over Mod 1 - 5 (networking)
1. Random electromagnetic radiation is called ______________ . a. shielding b. noise c. signals d. reflection
b. noise (mod4)
Select the four major HTTP request types. a. HEAD, ADD, GET, and POST b. HEAD, PUT, DELETE, and POST c. HEAD, PUT, GET, and POST d. HEAD, ADD, DELETE, and POST
c. HEAD, PUT, GET, and POST (mod30
Which Internet stream service operates similar to a telephone call?
connection-oriented (mod2)
Optical fiber has several properties that make it more desirable than copper wiring. These advantages include all except a. higher bandwidth. b. immunity to electrical noise. c. less signal attenuation. d. lower overall cost.
d. lower overall cost (mod4)
High frequency radio waves follow the earth's curvature and can be blocked by uneven terrain. True or False?
False (mod4)
Infrared communication technologies are well suited for outdoor spaces. True or False
False (mod4)
Low Earth Orbit Satellites are defined as orbiting up to 2000 Kilometers, having a short propagation delay, and easy to track. True or False?
False (mod40
Isochronous transmission can occur at any time with an arbitrary delay between the transmission of two data items. True or False?
False (mod5)
The HTTP request type ______ is used to request a document.
GET (mod3)
A concurrent server uses threads of control to handle requests from multiple clients at the same time. True or False?
TRUE (Mod2)
Describe the client-server model of interaction.
The server starts first and awaits contact by the client. (mod2)
Serial transmission sends one bit at a time over a transmission medium. True of False?
True
A packet using the message paradigm is limited to 64 Kbytes per message. true or false
True (mod2)
Multimedia applications use the Internet communication message paradigm. True or False?
True (mod2)
The server must be running before the client can make contact. True or False?
True (mod2)
1. A browser can reduce download times significantly by saving a copy of each image in a cache on the user's disk and using the cached copy. True or False?
True (mod3)
1. HyperText Markup Language (HTML) is a representation protocol standard that specifies the syntax for a web page. True or False
True (mod3)
1. Simple Mail Transfer Protocol (SMTP) can only transfer text messages. True or False?
True (mod3)
1. The organization is responsible for the Web standards is the World Wide Web Consortium. True or False
True (mod3)
Geostationary Earth Orbit (GEO) Satellites remains in exactly the same location over the earth's surface at all times when positioned above the equator. True or False?
True (mod4)
Medium Earth Orbit (MEO) Satellites provide communication at the North and South Poles. True or False?
True (mod4)
One way to reduce interference from noise is to place metal between a source of noise and the communicating medium. True or False?
True (mod4)
The most widely used form of light energy medium is fiber optics. True or False?
True (mod4)
A keyboard transmission signal is an example of asynchronous transmission. True or False
True (mod5)
Access technologies handle the last mile problem, where the last mile is defined as the connections to the typical residential subscriber or small business. True or False
True (mod5)
Asynchronous transmission can occur at any time with an arbitrary delay between the transmission of two data items. True or False?
True (mod5)
Because it uses frequency division multiplexing, ADSL and traditional analog phone service (POTS) can use the same wires simultaneously. True or False?
True (mod5)
Synchronous transmission occurs continuously with no gaps between the transmission of two data items. True or False?
True (mod5)
What are the two main reasons most communication systems use serial mode transmission? a. Fewer physical wires b. High throughput c. Less electro-magnetic interference d. Matches underlying hardware e. Higher throughput
a. Fewer physical wires AND c. Less electro-magnetic interference
1. HyperText Transfer Protocol (HTTP) is a representation protocol used by a browser to interact with a web server. True or False?
False (mod3)
1. Lightning and cosmic radiation have little effect on terrestrial communications. True or False
False (mod4)
ISDN technology is one of the main technologies used to provide high-speed data communication service over a local loop. True or False?
FALSE (mod5)
Data transmissions cannot be converted from parallel to serial. True or False?
False
1. Each service available in the Internet is assigned a unique 16-bit identifier known as an IP Address. True or False?
False (mod2)
1. Packets always will arrive at their destination in the same order they were transmitted. True or False?
False (mod2)
The Internet communication stream paradigm can run over TCP or UDP. True or False?
False (mod2)
1. What does HTML stand for?
HyperText Markup Language (mod3)
The HTTP request type _______ is used to send data to a server where it is appended to a specific item.
POST (mod3)
The HTTP request type ______ is used to send data to a server where it replaces a specific item.
PUT
1. What are the two basic Internet communication paradigms (models)?
Stream and Message (mod2)