1.
What happens when more bits are added to a digital signal arranged in a sequence understood by the sender and receiver?
A. 
A. A code set is established
B. 
C. 
D. 
2.
How many possible symbols can 4 bits represent?
A. 
B. 
C. 
D. 
3.
In networking, a byte is identified as a/an
A. 
B. 
C. 
D. 
4.
What organization sets important computer networking wiring standards for residential and commercial network cabling?
A. 
A. Electronic Industries Alliance (EIA)
B. 
B. Telecommunications Industry Association (TIA)
C. 
C. The American National Standards Institute (ANSI)
D. 
D. The National Institute of Standards and Technology (NIST)
5.
What Electronic Industries Alliance (EIA)/Telecommunications Industry Association (TIA) standard is used for commercially building telecommunications cabling?
A. 
B. 
C. 
D. 
6.
Which of the following is an International Telecommunication Union (ITU) standardized format used for digital telecommunications services backbone system?
A. 
B. 
B. Structured query language
C. 
C. International Organization for Standardization
D. 
D. American Standard Code for Information Interchange
7.
There is a worldwide nonprofit association of technical professionals that promotes the development of standards called the
A. 
A. Internet Engineering Task Force (IETF)
B. 
B. Institute of Electrical and Electronics Engineers (IEEE)
C. 
C. Europen Telecommunications Standards Institute (ETSI)
D. 
D. Internet Corporation for Assinged Names and Numbers (ICANN)
8.
A collection of standards for local area network (LAN) architectures, protocols, and technologies called Project 802 were developed by the
A. 
A. Internet Engineering Task Force (IETF)
B. 
B. Institute of Electrical and Electronics Engineers (IEEE)
C. 
C. European Telecommunications Standards Institute (ETSI)
D. 
D. Internet Corporation for Assigned Names and Numbers (ICANN)
9.
The "parent" organization, headquartered in Geneva, Switzerland, for all other telecommunications organizations is the
A. 
A. Internet Engineering Task Force (IETF)
B. 
B. International Telecommunication Union (ITU)
C. 
C. Institute of Electrical and Electronics Engineers (IEEE)
D. 
D. International Telegraph and Telephone Consultative Committee (CCITT)
10.
What organization is responsible for the X-series and V-series standards?
A. 
A. Internet Engineering Task Force (IETF)
B. 
B. International Telecommunication Union (ITU)
C. 
C. Institute of Electrical and Electronics Engineers (IEEE)
D. 
D. International Telecommunication Union Telecommunications Standardization Sector (ITU-T)
11.
Which series of standards are recommended for data transmission using teh telephone network?
A. 
B. 
C. 
D. 
12.
The definition of the Open System Interconnect (OSI) reference model was a major contribution to networking made by the
A. 
A. Internet Engineering Task Force (IETF)
B. 
B. International Telecommunication Union (ITU)
C. 
C. International Organizaiton for Standardization (ISO)
D. 
D. Institute of Electrical and Elecronics Engineers (IEEE)
13.
Within how many feet of the data communicaitons equipment (DCE) connection does the electronics Industries Alliance (EIA) RS-232-C standard prescribes bipolar-voltage serical data transmission?
A. 
B. 
C. 
D. 
14.
Which Electronics Industries Alliance (EIA) interface standard has the ability to work in either balanced or unbalanced electrical circuits?
A. 
B. 
C. 
D. 
15.
What transmission rates does Electronic Industries Allinace (EIA) RS-530 Accommodate?
A. 
A. 20 kilobits per second (Kbps) to 200 Kbps
B. 
B. 20 Kbps to 2 megabits per second (Mbps)
C. 
D. 
16.
What two sublayers did the Institute of Electrical and Electronics Engineers (IEEE) divide the Open System Interconnect (OSI) data link layer into?
A. 
A. High Level Data Link Control (HDLC) and Synchronous Data Link Control (SDLC)
B. 
B. Logical Link Control (LLC) and Media Access Control (MAC)
C. 
C. Data communications equipment (DCE) and data terminal equipment (DTE)
D. 
D. Electronic Industries Alliance (EIA) RS-232 and RS-530
17.
At what Open System Interconnect (OSI) layer are common data compression and encryption schemes used?
A. 
B. 
C. 
D. 
18.
What Open System Interconnect (OSI) layer is closest to the end user?
A. 
B. 
C. 
D. 
19.
In the Open System Interconnect (OSI) model, a layer will communicate with three other OSI layers. Which one is not one of those layers?
A. 
B. 
C. 
D. 
20.
Which information unit, whose source and destination are network-layer entities, uses connectionless network service?
A. 
B. 
C. 
D. 
21.
What data communication protocol is used to govern the flow and format of information between systems?
A. 
B. 
C. 
D. 
22.
In binary-synchronous protocol, what character is used to establish and maintain character synchronization prior to the message block and during transmission?
A. 
B. 
C. 
D. 
23.
What data communication protocol is based on bits and the position of the bits?
A. 
B. 
C. 
D. 
24.
What data communication protocol ensures that the receiving station can distinguish information from garbage?
A. 
B. 
B. Binary synchronous protocol
C. 
C. Synchronous Data Link Control (SDLC)
D. 
D. High-Level Data Link Control (HDLC)
25.
A group of computers and associated devices that share a common communications line within a small geographic area is a
A. 
A. Metropolitan area network (MAN)
B. 
B. Local area network (LAN)
C. 
C. Wide area network (WAN)
D. 
D. Virtual private network (VPN)