Ch 5 short Flashcards
Monica, a network engineer at J&K Infotech Solutions, has been contracted by a small firm to setup a network connection. The requirement of the network backbone for the connection is of a couple of switches needing fiber-optic connections that might be upgraded later. Which of the following transceivers should Monica use when the maximum transmission speed is of 8gbps?
a. SFP+
b. XFP
c. QSFP
d. SFP
XFP
An Internet Service Provider has hired you to frame cables for a network connection using TIA/EIA standards so that it can transmit up to 10gbps or 40gbps at short distances. However, you do not want to disrupt the previous cabling equipment as it will increase the cost. Which of the TIA/EIA 568 standard twisted-pair cables will you use to carry out this operation without having to go through the equipment changes?
a. cat6e
b. cat7
c. cat7a
d. cat8
cat8
Netcom Solutions is an Internet Service Provider that has purchased a fresh wholesale bandwidth from network service provider GT&P. Netcom Solutions has been using duplex technologies running through copper wires for its distribution. It now wants to upgrade to multiplexing technologies using fiber-optic cables so that it can allow multiple signals to travel simultaneously. Analyze which of the following types of multiplexing technologies Netcom should choose in this situation for its connection with GT&P so that it can operate with more channels.
a. FDM
b. WDM
c. TDM
d. DWDM
DWDM
You, as a network engineer, have been sent to insert twisted pairs into an RJ-45 T568B for a newly setup network at Delta Innovations. Which of the following cables will you use in this scenario to connect the workstation to a switch?
a. rollover cable
b. crossover cable
c. fiber optic cable
d. straight-through cable
straight-through cable
Pocso Group of Institutions has hired you to set up a LAN connection so that the students in the hostel can easily avail the prerecorded classes. These classes are provided through video lectures on the desktops situated at the common rooms for each hostel within the campus. Which of the following standards will you apply to provide the fastest transmission for their requirement?
a. 10GBASE-T
b. 100BASE-TX
c. 100GBASE-T
d. 10BASE-T
100GBASE-T
Which of the following tools measures the amount of light power transmitted on a fiber-optic line?
a. Tone generator
b. OPM
c. Multimeter
d. tone locator
OPM
You are a network administrator for an ISP that wants to increase the amount of data that can be transmitted within the given bandwidth. For this purpose, you decide to use multiplexing technologies so that you can modulate the signals into different frequencies that can travel simultaneously over a single channel only to be demultiplexed at the other end. Which of the following multiplexing types will you use in this case?
a. FDM
b. WDM
c. TDM
d. STDM
FDM
Mr. Lowe is a network administrator who plans on purchasing a switch that will be the part of a network for a new fast-growing fast-food joint named Momos & More (M&M). The team at M&M has specifically told Mr. Lowe that even though the current need of the network is two fiber-optic connections, it is planning on a significant expansion in the coming years. This expansion will include a fiber-optic connectivity to every desktop in the organization. Analyze what Mr. Lowe should do in this situation.
a. order media convertors
b. order switches that allow upgradeable interfaces
c. order a switch with the current demand number
d. use APC ferrules
order switches that allow upgradeable interfaces
The Embassy of New Zealand has hired you to set up some patch cables that are to be used at its immigration office. What color wire will you insert into the third pin of an RJ-45 plug in such an establishment?
a. white/green
b. white/orange
c. brown
d. blue
white/orange
What is the maximum supported bandwidth for a Category 5 twisted pair cable specified under TIA/EIA-568 standards?
a. 100mbps (Fast ethernet)
b. 1000mbps (1gbps, gigabit ethernet)
c. 10gbps
d. 10mbps
100mbps (fast ethernet)
Mr. Walker plans on manufacturing a new line of twisted-pair cables for Ethernet Networks. To do so and to compete with the other brands circulating in the market, he has to get his cable qualified as per certain standards. Which of the following points should he emphasize to get his TIA/EIA certified?
a. minimal crosstalk
b. twist ratio
c. less attentuation
d. effective throughput
effective throughput
You have successfully followed the cabling procedures for a new network connection at a primary school. The only task left is to connect the administrative computer to the console port of the router. Which of the following cables will you choose to connect the console port of the router to the computer?
a. fiber-optic cable
b. straight-through cable
c. rollover cable
d. crossover cable
rollover cable
Mr. Anderson had to set up an ethernet network segment that can transmit data at a bandwidth of 1000mbps and cover a distance of 2000m per segment. The available fiber-optic cable in the market was an SMF cable. Analyze and discuss which of the following fiber ethernet standards he should follow under such circumstances.
a. 100BASE-FX
b. 1000BASE-SX
c. 1000BASE-LX
d. 100BASE-SX
1000BASE-LX
The IT department at Zatar Airways has complained of a faulty fiber-optic cable as a result of which there are connectivity issues in the organization. You, as a senior technician, are planning on an op-site visit to examine the defects of the cable. Which of the following tools must you carry along so that the defects are detected?
a. tone generator
b. tone locator
c. TDR
d. OPM
TDR
You are a network engineer who is working on a very busy network and is concerned why the actual throughput is less than the potential bandwidth. The total signal strength has been estimated to be 1000watss, and the estimated loss of signal due to noise has been calculated to be 6db. What is the throughput that is being received at the moment as per your calculations, keeping the 3-db rule in mind?
a. 250w
b. 125w
c. 500w
250w
A loss of 3db between the transmitter and receiver indicates that the signal has lost half its power. Here, since the loss was 6db, it would mean 75 percent loss of the original strength, which adds up to 250 watts.
