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1 - Telecommunications Midterm (Last 24 Questions)
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24
Computer Networking
Undergraduate 3
10/03/2017

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Term
What two fields below are used by IPv4 and IPv6 respectively to limit the number of times that a packet can be forwarded on a network?
Definition
TTL and Hop limit
Term
In IPv6, what field is used to indicate what sequence of packets from one source to one or multiple destinations a packet belongs to?
Definition
Flow Label
Term
Which of the following are the features of User Datagram Protocol (UDP)? (Select 2)
Definition
UDP is commonly used for streaming audio and video and offers faster transfer speed than TCP
Term
IP is an unreliable, connectionless protocol.
Definition
True
Term
The standard that describes uniform, enterprise-wide cabling systems, regardless of who manufactures or sells the various parts used in the system, can be referred to by what two options below? (select 2)
Definition
TIA/EIA-568 and IEEE Commercial Building Wiring Standard
Term
Select the maximum allowable distances for horizontal wiring for a span that connects a data jack on a wall to a data closet, and for a span that connects a workstation to the data jack, respectively (select 2):
Definition
10m and 90m
Term
What are the two primary standard widths for rack systems?
Definition
19 inches and 23 inches
Term
Which of the following cabling types is not recognized by the TIA/EIA for horizontal wiring?
Definition
coaxial
Term
What is the industry standard for rack height in rack units?
Definition
42 Units
Term
What cable type comes in two different modes, single mode and multimode?
Definition
Fiber Optic
Term
During termination of twisted pair cabling, what should be done to ensure minimal cross talk is introduced?
Definition
No more than 1 inch of the cable should be exposed.
Term
One watt is equal to how many volt-amps?
Definition
1.4
Term
Which of the following options is not a likely source of electromagnetic interference?
Definition
Fiber Optic Cables
Term
Your campuswide WAN is experiencing slow Internet response times. When you call your Internet service provider to ask if they can troubleshoot the problem from their end, they warn you that their responsibilities end at the demarc. What do they mean?
Definition
They will not diagnose problems beyond your organization’s entrance facilities.
Term
Which type of multiplexing is defined by wavelength instead of frequency?
Definition
CWDM
Term
How many cable pairs are needed for 1000Base-T transmission over CAT5e cable?
Definition
4
Term
Ethernet is an example of what type of technology?
Definition
Baseband
Term
Using a form of transmission that allows multiple signals to travel simultaneously over one medium is known as which of the following options?
Definition
Multiplexing
Term
What is the outter most part of a cable?
Definition
Sheath
Term
The most common multiplexing technology used in conjunction with fiber optics is which option below?
Definition
DWDM
Term
What two items below are commonly expressed as bits transmitted per second?
Definition
Throughput and Bandwidth
Term
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?
Definition
Cat 6
Term
Which type of transmission is measured by baud rate?
Definition
Analog
Term
WDM divides a beam of light into how many different wavelengths or colors?
Definition
40
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