Telecom Test 1 (Ch. 1 - 4). Latest
edition 2026-2027. Questions &
Correct Answers. Graded A
______ is a modem standard that uses Lempel-Ziv encoding to compress
data.
a. V.22
b. V.44
c. V.32bis
d. V.34
e. RS 232 - ANSb. V.44
________ is the presentation of information to the user and the acceptance
of the user's commands.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage - ANSd. presentation logic
________ is the process of sending a signal to a client that gives its
permission to transmit or asks it to receive.
1
,a. Contention
b. Polling
c. Pooling
d. Carrier sense
e. CRC - ANSb. Polling
_________ is a special type of one directional; videoconferencing in which
content is sent from the server to the user.
a. broadcasting
b. instant messaging
c. webcasting
d. H.323
e. Net Meeting. - ANSc. webcasting
_________ is an application program function that deals with storing and
retrieving data.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage - ANSa. data storage
_________ is the basic physical layout of the circuit.
a. point-to-point configuration
2
,b. configuration
c. circuit configuration
d. circuit design
e. circuit plan - ANSc. circuit configuration
__________ ensure that hardware and software produced by different
vendors work together.
a. Delimiters
b. Standards
c. ASPs
d. RBOCs
e. Intranets - ANSb. Standards
__________ is a line-of-sight type of wireless media.
a. coaxial cable
b. microwave
c. radio
d. twisted pair
e. fiber optic - ANSb. microwave
___________ is an orderly close to a dialogue between end users.
a. Session termination
b. Physical bits
c. Frame overhead
3
, d. Packet encapsulation
e. Message encryption - ANSa. Session termination
___________ is not a type of digital signaling technique.
a. Non-return-to-zero signaling
b. Unipolar signaling
c. Manchester encoding
d. Return-to-zero signaling
e. Data rate signaling - ANSe. Data rate signaling
___________ refers to the spreading of the signal that different parts of the
signal arrive at different times at the destination.
a. turnaround time
b. propagation delay
c. dispersion
d. insulation
e. attenuation - ANSc. dispersion
____________ is a modulation technique that combines two different
amplitude combinations with eight different phase combinations modulation
to send four bits per symbol.
a. quadrature amplitude modulation
b. time division multiplexing
c. synchronous digital line control
4
edition 2026-2027. Questions &
Correct Answers. Graded A
______ is a modem standard that uses Lempel-Ziv encoding to compress
data.
a. V.22
b. V.44
c. V.32bis
d. V.34
e. RS 232 - ANSb. V.44
________ is the presentation of information to the user and the acceptance
of the user's commands.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage - ANSd. presentation logic
________ is the process of sending a signal to a client that gives its
permission to transmit or asks it to receive.
1
,a. Contention
b. Polling
c. Pooling
d. Carrier sense
e. CRC - ANSb. Polling
_________ is a special type of one directional; videoconferencing in which
content is sent from the server to the user.
a. broadcasting
b. instant messaging
c. webcasting
d. H.323
e. Net Meeting. - ANSc. webcasting
_________ is an application program function that deals with storing and
retrieving data.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage - ANSa. data storage
_________ is the basic physical layout of the circuit.
a. point-to-point configuration
2
,b. configuration
c. circuit configuration
d. circuit design
e. circuit plan - ANSc. circuit configuration
__________ ensure that hardware and software produced by different
vendors work together.
a. Delimiters
b. Standards
c. ASPs
d. RBOCs
e. Intranets - ANSb. Standards
__________ is a line-of-sight type of wireless media.
a. coaxial cable
b. microwave
c. radio
d. twisted pair
e. fiber optic - ANSb. microwave
___________ is an orderly close to a dialogue between end users.
a. Session termination
b. Physical bits
c. Frame overhead
3
, d. Packet encapsulation
e. Message encryption - ANSa. Session termination
___________ is not a type of digital signaling technique.
a. Non-return-to-zero signaling
b. Unipolar signaling
c. Manchester encoding
d. Return-to-zero signaling
e. Data rate signaling - ANSe. Data rate signaling
___________ refers to the spreading of the signal that different parts of the
signal arrive at different times at the destination.
a. turnaround time
b. propagation delay
c. dispersion
d. insulation
e. attenuation - ANSc. dispersion
____________ is a modulation technique that combines two different
amplitude combinations with eight different phase combinations modulation
to send four bits per symbol.
a. quadrature amplitude modulation
b. time division multiplexing
c. synchronous digital line control
4
