Networking + 5

Which of the following is the data rate that defines the amount of data transmitted in a specific time? Throughput Speed Distance Latency

Throughput

Which of the following terms refer to the number of data bits (0s and 1s) that are actually received across a connection each second? Frequency Throughput Bandwidth Attenuation

Throughput

The IT department of Maddison Corporates has complained about a faulty fiber-optic cable as a result of which it is having connectivity issues within the organization. As a network engineer, you want to detect the faulty cable by searching for electrical signals in the cables located within the racks in the data room. Which of the following instruments will you need in this scenario? TDR Tone locator Tone generator OPM

Tone locator

Which phenomenon is used by light waves within Fiber Optic cables to travel from one point to another? Guided Light Flow Total Internal Reflection Refraction Reflection

Total Internal Reflection

What is the maximum speed of the CAT1 cable? Up to 10 Mbps Up to 4 Mbps Up to 1 Mbps Up to 16 Mbps

Up to 1 Mbps

You have recently been hired to complete a pending networking project where the cabling procedure providing Fast Ethernet has already been completed. On inspection, you realize that TIA/EIA-568 Category 5 twisted pair has been used for the cabling procedure. What is the maximum bandwidth that you will allot with such a pair of wires in this scenario? 10 Mbps 100 Mbps (Fast Ethernet) 1000 Mbps (1 Gbps, Gigabit Ethernet) 10 Gbps

100 Mbps (Fast Ethernet)

At what rate is data transmitted using 40GBASE-T? 100Mbps 1000Mbps 40Gbits/s 10Gbits/s

40Gbits/s

Which tool is used to connect a media connector to the end of a cable? Cable Crimper Multimeter Punchdown tool Loopback Adapter

Cable Crimper

Which tool is used to test an Ethernet cable and creates a loopback connection? Cable Tester Cable Crimper Loopback Adapter Multimeter Punchdown tool

Cable Tester

When implementing an organized cable management solution, which of the following are required to help keep the system organized? [Choose all that apply] Cable ties Cable hub Cable labels Color-coded cables

Cable ties Cable labels Color-coded cables

Which of the following are the two major parts of a BIX punchdown block system? [Choose two that apply] Transmitter Receiver Connector Mount

Connector Mount

You are working as a network administrator for an ISP. A ticket has been raised by a consumer complaining about fluctuations in network speed despite using a fiber-optic cable. The inner wiring of the cable needs to be checked for which you have decided to strip off the outer layer of the fiber cable. Which of the following tools will you carry for this purpose? Fiber stripper Fiber cleaver Fusion splicer Cable crimper

Fiber stripper

Which of the following transmissions allows a signal to travel in both directions simultaneously? Simplex Half-duplex Full-duplex Multiplexing

Full-duplex

To which IEEE standard is Ethernet cabling specifications measured against? IEEE Standard 802.11 IEEE Standard 802.8 IEEE Standard 802.1 IEEE Standard 802.3

IEEE Standard 802.3

The University of Zotto wants to upgrade its network so that the dean of the university can deliver important information related to students and teachers directly to the campus monitors located in the vicinity. The university has hired a firm named Internet Solutions for this purpose. The firm has come up with a solution where it will use a central receiver to distribute video signals to multiple monitors within a building. However, the firm is still not sure about the kind of cables it will be using as the allocated budget is not extensive. Analyze which of the following should be ideal in such a scenario. RG-59 cables RG-6 cables Category 3 cables Fiber-optic cables

RG-59 cables

Which of the following causes an evident loss of decibel? Incorrect pinout Increased speed Increased latency Increased attenuation

Increased attenuation

What sort of Internet connection is preferred to provide guaranteed uptime to customers? Leased Line Cable Connection Satellite Metro-Optical

Leased Line

Which is a hardware device that is used for troubleshooting network transmission issues? Multimeter Cable Tester Tap Loopback Adapter

Loopback Adapter

Which tool uses red and black probes to measure voltage? Loopback Adapter Cable Crimper Multimeter Punchdown tool

Multimeter

Which of the following cable uses light-emitting diodes to transmit multiple signals at a time? Multimode fiber-optic cable(MMF) Single-mode fiber-optic cable (SMF) Coaxial cable Unshielded twisted pair (UTP)

Multimode fiber-optic cable(MMF)

Which type of crosstalk occurs between wire pairs near the source of a signal? Alien crosstalk NEXT FECT Jitter

NEXT

Which of the following devices is used to test a fiber cable to determine a fault and its length? Loopback Adapter Multimeter Cable Tester Optical Time-Domain Reflectometer (OTDR)

Optical Time-Domain Reflectometer (OTDR)

What is the purpose of twists in a Twisted Pair cable? Reduce Noise (Crosstalk) Increase the cable length per unit of distance Increase the cable strength Tying two cables together

Reduce Noise (Crosstalk)

RCB Logistics wants to upgrade the cabling of its network as it was still running on older fiber networks. It has outsourced the cabling project to Bear & Co. that appointed Watson as a network engineer. On inspection, it gets to know that the older fiber networks were connected using an ST connector. Watson decides that he will replace the SMF cables with MMF cables in order for the signaling to be in full-duplex mode. Analyze which of the following connectors would be most ideal in this situation for Watson to replace the cables. Replace the cables using a 1.25 mm ferrule LC Replace the cables using a 2.25 mm ferrule ST Replace the cables using a 2.25 mm ferrule SC Replace the cables using an MT-RJ connector

Replace the cables using an MT-RJ connector

Which types of cables are mainly used in elevator shafts that can prevent fire? Plenum-rated Riser-rated PVC-rated Fiber

Riser-rated

Which type of cable has an RJ45 (male) at one end and a DB9 (female) connector at the other end? [Choose all that apply] Rollover Cable Straight Cable Console Cable Crossover Cable

Rollover Cable Console Cable

Which kind of multiplexing assigns slots to nodes according to priority and need? a. TDM (time division multiplexing) b. STDM (statistical time division multiplexing) c. WDM (wavelength division multiplexing) d. CWDM (coarse wavelength division multiplexing)

STDM (statistical time division multiplexing)

What sort of Internet Service Providers are used by Airlines to provide Internet services to customers in transit? Cable Connection Metro-Optical Leased Line Satellite

Satellite

Frank has been appointed as a network engineer with an Internet service provider firm. His first assignment as an engineer is to set up a 1000BASE-T standard Fast Ethernet for Horizon Corporates. While doing so, the ISP has specifically requested him to concentrate on installing the necessary twisted-cable pairs as all the other specified standards will be looked after by the other members of the team, which has been allocated for this project. Analyze which of the following pairs of twisted cables Frank should use in this scenario. Use a Category 5e cable for this scenario Use a Category 5 cable for this scenario Use a Category 6 cable for this scenario Use a Category 7 cable for this scenario

Use a Category 5e cable for this scenario

What does W in RJ11W indicate? Wavelength Wall Wire Width

Wall

You are working as a network engineer for an ISP. A ticket has been raised that there has been severe attenuation, which has decreased the transmission speed significantly. On inspection, you notice that the reason for this issue is that the transmissions are optimized for one type of cable but sent over a different type of cable. You are now required to send this analysis to the head office for further instructions. Under which of the following common fiber connection problems will you associate this issue? Fiber type mismatch Wavelength mismatch Link loss Dirty connectors

Wavelength mismatch

Which transmission characteristic is never fully achieved? a. Bandwidth b. Bit rate c. Latency d. Throughput

a. Bandwidth Bandwidth refers to the amount of data you could theoretically transmit during a given period of time but is never fully achieved. Latency describes the brief delay that takes place between the instant when data leaves the source and when it arrives at its destination. Throughput refers to the number of data bits (0s and 1s) that are actually received across a connection each second. Throughput is also called bit rate.

Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin? a. White/green b. Blue c. Brown d. White/orange

a. White/green

Which of these categories of twisted-pair cable can support Gigabit Ethernet? a. Cat 5e, cat 6, cat 3 b. Cat 5e, cat 6a, cat 7 c. Cat 6, cat 7a, cat 5 d. Cat 5, cat 6, cat 7

b. Cat 5e, cat 6a, cat 7 Cat 5e is the minimum category of twisted-pair cable that supports Gigabit Ethernet. Cat 6a and cat 7 also support Gigabit speeds or higher.

What is the minimum twisted-pair category required for 10-Gigabit Ethernet at 100 meters? a. Cat 7 b. Cat 6a c. Cat 8 d. Cat 5e

b. Cat 6a Cat 7 and Cat 8 both support throughput of 10 Gbps or higher at the full 100 meters segment length.

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. Fiber type mismatch c. TX/RX reverse d. Wavelength mismatch

b. Fiber type mismatch

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 While cat 6 cable can support 10 Gbps speeds at shorter distances, cat 6a is the first category of cable rated for 10 Gbps at 100 meters.

Which kind of crosstalk occurs between wire pairs near the source of the signal? a. TX/RX reverse b. Alien c. NEXT d. FEXT

c. NEXT

What is the typical maximum segment length for Ethernet networks? a. 10,000 meters b. 1000 meters c. 10 meters d. 100 meters

d. 100 meters Correct. The maximum segment length for both STP and UTP is 100 meters, or 328 feet, on Ethernet networks that support data rates from 1 Mbps to 10 Gbps. Some categories of STP require shorter segment lengths to achieve maximum throughput, which can vary from 10 Mbps to 100 Gbps.

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

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. Solid blue b. Orange and white striped c. Solid brown d. Green and white striped

d. Green and white striped

Which fiber connector contains two strands of fiber in each ferrule? a. ST b. SC c. LC d. MT-RJ

d. MT-RJ

Which tool could you use to determine if a laptop's power cable is working properly? a. Cable performance tester b. Continuity tester c. Toner and probe kit d. Multimeter

d. Multimeter You might use a multimeter to measure voltage to verify that a cable is properly conducting electricity, whether that cable is a data cable on a network or a power cable. A continuity tester determines whether a cable is carrying a data signal to its destination. A toner and probe kit can help determine where a wire, possibly out of hundreds, terminates.

Which of the following improves overall network performance? a. Latency b. Jitter c. Attenuation d. Multiplexing

d. Multiplexing Networks rely on multiplexing to increase the amount of data that can be transmitted in a given timespan over a given bandwidth. Latency is the delay between when data leaves the source and when it arrives at its destination. If packets experience varying amounts of delay, they can arrive out of order—a problem commonly called jitter. Attenuation is the loss of a signal's strength as it travels away from its source.

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 Twinax an inexpensive option for short, high-speed connections, such as when connecting switches to routers or servers in a data center; passive twinax is sufficient for the shortest distances of less than about 5 or 7 meters. RG-6 coaxial cables is used to deliver broadband cable Internet service and cable TV, particularly in the last stretch to the consumer's location. Cat 5e and cat 6 twisted-pair cable have more limited available throughput than twinax.

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

d. QSFP quad

Which of the following statements is not true? a. SMF has a thinner core than MMF. b. MMF is better suited than SMF to backbone connections within the data center. c. MMF signals experience greater reflection within the core than SMF signals. d. SMF supports lower bandwidths than MMF.

d. SMF supports lower bandwidths than MMF

Which fiber connector does not support full-duplex transmissions? a. LC b. MT-RJ c. SC d. ST

d. ST The older ST (straight tip) fiber connector does not support full-duplex transmission. The MT-RJ (mechanical transfer-registered jack) connector is unique in that it contains two strands of fiber in a single ferrule. With two strands per ferrule, a single MT-RJ connector provides full-duplex signaling. SC (subscriber connector) and LC (local connector) fiber connectors are also available in full-duplex mode.

When you measure the amount of data coming into your home network, what metric are you identifying? a. Bandwidth b. Noise c. Duplex d. Throughput

d. Throughput Throughput refers to the number of data bits (0s and 1s) that are actually received across a connection each second. Bandwidth refers to the amount of data you could theoretically transmit during a given period of time. Noise, or interference, degrades or distorts a signal on a network. Duplex indicates if and when a signal can travel in both directions on a medium.

Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair? a. TDR b. Toner c. Tone generator d. Tone locator

d. Tone locator