Digital Signal 3D152 Vol. 2

37 Questions | By ANGchar12 | Updated: Mar 21, 2022 | Attempts: 198

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3D152 Vol 2 URE's

Questions and Answers

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.
  
  B. A word is created
- C.
  
  C. An octet is formed
- D.
  
  D. Nothing
2.

How many possible symbols can 4 bits represent?
- A.
  
  A. 2
- B.
  
  B. 4
- C.
  
  C. 8
- D.
  
  D. 16
3.

In networking, a byte is identified as a/an
- A.
  
  A. bit
- B.
  
  B. word
- C.
  
  C. octet
- D.
  
  D. letter
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.
  
  A. 568A
- B.
  
  B. 569A
- C.
  
  C. 570A
- D.
  
  D. 606A
6.

Which of the following is an International Telecommunication Union (ITU) standardized format used for digital telecommunications services backbone system?
- A.
  
  A. E-carrier
- 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.
  
  A. T
- B.
  
  B. V
- C.
  
  C. X
- D.
  
  D. Z
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.
  
  A. 25
- B.
  
  B. 50
- C.
  
  C. 100
- D.
  
  D. 200
14.

Which Electronics Industries Alliance (EIA) interface standard has the ability to work in either balanced or unbalanced electrical circuits?
- A.
  
  A. RS-232-C
- B.
  
  B. RS-423
- C.
  
  C. RS-485
- D.
  
  D. RS-530
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.
  
  C. 20 Kbps to 20 Mbps
- D.
  
  D. 20 Kbps to 22 Mbps
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.
  
  A. Application
- B.
  
  B. Session
- C.
  
  C. Presentation
- D.
  
  D. Transport
18.

What Open System Interconnect (OSI) layer is closest to the end user?
- A.
  
  A. Application
- B.
  
  B. Session
- C.
  
  C. Presentation
- D.
  
  D. Transport
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.
  
  A. Layer above
- B.
  
  B. Layer below
- C.
  
  C. Lowest layer
- D.
  
  D. Peer layer
20.

Which information unit, whose source and destination are network-layer entities, uses connectionless network service?
- A.
  
  A. Frame
- B.
  
  B. Packet
- C.
  
  C. Segment
- D.
  
  D. Datagram
21.

What data communication protocol is used to govern the flow and format of information between systems?
- A.
  
  A. Character-oriented
- B.
  
  B. Bit-oriented
- C.
  
  C. Routing
- D.
  
  D. Network
22.

In binary-synchronous protocol, what character is used to establish and maintain character synchronization prior to the message block and during transmission?
- A.
  
  A. SEQ
- B.
  
  B. SYN
- C.
  
  C. STX
- D.
  
  D. EST
23.

What data communication protocol is based on bits and the position of the bits?
- A.
  
  A. Character-oriented
- B.
  
  B. Bit-oriented
- C.
  
  C. Routing
- D.
  
  D. Network
24.

What data communication protocol ensures that the receiving station can distinguish information from garbage?
- A.
  
  A. Asynchronous protocol
- 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)