Review Questions Network+ Module 5
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBASE-T transmissions at 100 meters? A) Cat 5e B) Cat 6 C) Cat 6a D) Cat 7
C) Cat 6a
What type of fiber-cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable? A) Dirty connectors B) Wavelength mismatch C) Fiber type mismatch D) TR/RX reverse
C) Fiber type mismatch
Which of the following multiplexing types divides a channel into multiple intervals of time, or time slots? A) STDM B) WDM C) TDM D) FDM
C) TDM
You are setting up a network connection that can transmit up to 10 Gbps with a maximum frequency of 500 MHz. 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) Cat 6 B) Cat 5e C) Cat 6a D) Cat 5
B) Cat 6a Cat 6a cables can operate at a maximum frequency of 500 MHz. Moreover, it is backward-compatible with Cat 5, Cat 5e, and Cat 6a cabling, which means that it can replace lower-level cabling without requiring connector or equipment changes.
Which of these categories of twisted-pair cable can support Gigabit Ethernet? A) Cat 5, cat 6, cat 7 B) Cat 5e, cat 6, cat 3 C) Cat 5e, cat 6a, cat 7 D) Cat 6, cat 7a, cat 5
- C. Cat 5e, Cat 6a, Cat 7 - CAT 5e (enhanced) 1000 Mbps 350 MHz Higher-grade version of Cat5 higher twist ratio - CAT 6a (augmented) 10 Gbps 500 MHz Reduced attenuation and crosstalk. Reliable Gb - CAT 7 (Category 7) 10 Gbps 600 MHz Higher frequency, wire pair has shielding
Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair? A) TDR B) Tone generator C) Tone locator D) Toner
- C. Tone Locator - Tone locator (or probe), a device that emits a tone when it detects electrical activity on a wire. They are often sold together as a kit.
Which transmission characteristic is never fully achieved? A) Latency B) Throughput C) Bit rate D) Bandwidth
- D. Bandwidth - Bandwidth, the amount of data that could theoretically be transmitted during a given period of time.
Which kind of crosstalk occurs between wire pairs near the source of the signal? A) Alien B) TX/RX reverse C) FEXT D) NEXT
- D. Next - NEXT(near end crosstalk), crosstalk that occurs between wire pairs near the source of the signal
As a network engineer, you have been tasked to form a Gigabit Ethernet for connecting a data center with a data closet in an office building. Identify which of the following fiber Ethernet standards would you apply in this situation. A) 1000BASE-FX B) 1000BASE-LX C) 10GBASE-SR D) 10GBASE-LR
A) 1000BASE-FX
Which of the following terms refers to the amount of data you can theoretically transmit during a given period of time? A) Bandwidth B) Attenuation C) Throughput D) Frequency
A) Bandwidth
Which fiber connector contains two strands of fiber in each ferrule? A) MT-RJ B) SC C) ST D) LC
A) MT-RJ
What is the earliest transceiver type to support four channels on a single transceiver to increase throughput? A) QSFP B) SFP+ C) SFP D) QSFP+
A) QSFP
Which of the following transceivers support up to 10 Gbps? A) XFP B) SFP+ C) QSFP D) SFP
A) XFP
What is the typical maximum segment length for Ethernet networks? A) 10 meters B) 100 meters C) 1000 meters D) 10,000 meters
B) 100 meters
What is the minimum twisted-pair category required for 10-Gigabit Ethernet at 100 meters? A) Cat 5e B) Cat 6a C) Cat 7 D) Cat 8
B) Cat 6a
You are working on as a network administrator for an ISP. You receive a complaint about fluctuations in the network speed despite using a fiber-optic cable. On checking the situation, you are of the opinion that you will need to cut a clean slice through the fiber strands. Which of the following kits should you carry for this purpose? A) Cable crimper B) Fiber cleaver C) Fiber stripper D) Fusion splicer
B) Fiber cleaver
You are working as a network engineer for an ISP. A ticket has been raised that states that the SMF and the MMF cables have come apart at the FDP (fiber distribution panel). One checking the situation, you realize that you will need to melt the tips of the two fibers together so that light can pass cleanly through the joint. Which of the following kits will you require in this scenario? A) Ferrule B) Fusion splicer C) Fiber stripper D) Fiber cleaver
B) Fusion splicer
Which of the following improves overall network performance? A) Jitter B) Multiplexing C) Attenuation D) Latency
B) Multiplexing
Mr. Chadwick has recently set up a network connection for a client wherein he made a transition between an SMF and an MMF cable using a fusion splicer. Around a week later, the client calls him up and raises a concern about fluctuations in the network. Mr. Chadwick decides to conduct an on-site inspection, and he gets to know that the reason behind the fluctuation is that the transmission has not traversed successfully. Analyze which common fiber problem Mr. Chadwick is referring to in this case. A) Dirty connectors B) Link loss C) Fiber-type mismatch D) Wavelength mismatch
C) Fiber-type mismatch
Which tool could you use to test a twisted-pair cable's pinout? A) OTDR B) Toner probe C) OPM D) Continuity tester
D) Continuity tester
The University of Pochinki scheduled a webinar for the students belonging to the law department. The webinar had professionals participating from various parts of the state. However, once the webinar started, a lot of participants sent messages claiming that the video transmission was repeatedly jumping around. The university called in its network administrator to take a look at the situation. Analyze what might have been the issue here. A) Noise B) RTT C) Attenuation D) Jitter
D) Jitter
Which of the following is not a characteristic of fiber cable? A) Noise immunity B) Throughput C) Size D) Low cost
D) Low cost
Which tool could you use to determine if a laptop's power cable is working properly? A) Continuity tester B) Cable performance tester C) Toner and probe kit D) Multimeter
D) Multimeter
Which fiber connector does not support full-duplex transmissions? A) LC B) MT-RJ C) SC D) ST
D) ST
Which kind of multiplexing assigns slots to nodes according to priority and need? A) WDM (wavelength division multiplexing) B) STDM (statistical time division multiplexing) C) TDM (time division multiplexing) D) CWDM (coarse wavelength division multiplexing)
- B. STDM (statistical time division multiplexing) - STDM(statistical time division multiplexing), assigns time slots to nodes (similar to TDM), but then adjusts these slots according to priority and need.
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 on-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) TDR B) OPM C) Tone locator D) Tone generator
A) TDR
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/orange B) Brown C) White/green D) Blue
A) White/orange
Monica, a network engineer at J&K Infotech Solutions, has been contracted by a small firm to set up 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 8 Gbps? A) SFP B) XFP C) QSFP D) SFP+
B) XFP
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 1000 watts, and the estimated loss of signal due to noise has been calculated to be 6 dB. What is the throughput that is being received at the moment as per you calculations, keeping the 3-dB rule in mind? A) 125 watts B) 500 watts C) 250 watts D) 750 watts
C) 250 watts
While setting up a network segment, you want to check the functionality of a cable before putting connectors on them. You also want to measure the termination point or damage in the cable. Which of the following tools would you use to identify this? A) Cable continuity tester B) Tone generator C) Cable performance tester D) Multimeter kit
C) Cable performance tester
Which of the following prefixes would you allot for a quantity of 1,000,000,000 bits per second? A) Tera B) Mega C) Kilo D) Giga
D) Giga
Pin 1 on one end of a cable is orange and white striped. What color should Pin 1 be on the other end of the cable to create a crossover cable? A) Orange and white striped B) Solid blue C) Solid brown D) Green and white striped
D) Green and white striped
Which cable is best suited for ultra-high speed connections between a router and a switch on the same rack? A) RG-6 coaxial cable B) Cat 5e twisted-pair cable C) Cat 6 twisted-pair cable D) Passive twinaxial cable
D) Passive twinaxial cable
RT&T is a world-renowned ISP that has hired you as a contractor for a cross-country network cabling project for its upcoming new FiberNet package. Through this package, it plans on providing high-speed Internet to consumers. Which of the following cables will you choose to carry out this large-scale project? A) Twisted-pair cable B) Coaxial cable C) MMF D) SMF
D) SMF
When you measure the amount of data coming into your home network, what metric are you identifying? A) Duplex B) Bandwidth C) Noise D) Throughput
D) Throughput
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 cable TIA/EIA certified? A) Less attenuation B) Effective throughput C) Twist ratio D) Minimal crosstalk
B) Effective throughput The only thing that matters in qualifying a manufacturer's cable for a particular standard is it's effective throughput (no matter how that effect is achieved), not specifically the number of twisted in the wires.
Josh is a new trainee at TT&P who has been sent to a client location to patch up cables connecting the switch to the data center. While doing so, Josh is unable to decide which connector to consider while connecting the ferrules of an SMF cable that measures 1.25 mm. Analyze and suggest which of the following connectors Josh should opt for under the circumstances so that there are minimum back reflections. A) ST B) LC C) MT-RJ D) SC
B) LC
Which of the following statements is not true? A) SMF has a thinner core than MMF B) SMF supports lower bandwidths than MMF C) MMF is better suited than SMF to backbone connections within the data center D) MMF signals experience greater reflection within the core than SMF signals
B) SMF supports lower bandwidths than MMF
Which of the following cables consist of one or more insulated wire pairs encased in a plastic sheath? A) Coaxial cable B) UTP cable C) Twinaxial cable D) STP cable
B) UTP cable
Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin? A) White/orange B) White/green C) Brown D) Blue
B) White/green
