1) Where does (did) a hub send data? a) Only to the recciving system b) Only to the sending system c) To all the systems connected to the hub d) Only to the server 2) What Windows utility do you use to find the MAC address for a system? a) ipconfig /all b) netstat c) ipcfg /all d) Ping 3) What uniquely identifies every NIC a) IP Address b) Media access control address c) Default gateway d) Product ID 4) A MAC address is known as a(n)____address. a) Logical b) Software c) Physical d) internet protocol 5) A NIC sends data in discrete chunks called a) Segments b) Layers c) Frames d) Packs 6) The MAC address of which of the folwing begin a frame? a) Receiving System b) Network c) Sending System d) Router 7) Which of the following topologies required termination? a) Star b) Bus c) Ring d) Mesh 8) Of the topologies listed, which one is the most fault-tolerant? a) Bus b) Ring c) Star d) point-to-point 9) Which of the following ratings do all Coaxial cables have? a) resistance b) speed c) wattage d) Ohm 10) Which of the following is a type of coaxial cable a) RJ-45 b) RG-6 c) BNC d) Barrel e) RG-9001 11) Ethernet hubs took an incoming packet and __________ it out to the other connected ports. a) Amplified b) Repeated c) Filtered d) Distorted 12) What is the beginning of the internet frame a) Mac address b) Preamble c) Length d) CRC 13) What type of bus did 10BaseT use a) Bus b) Ring c) Star Bus d) Bue Ring 14) What was the maximum distance that could separate a ten base T hub from its hub? a) 200 meters b) 185 meters c) 100 meters d) 50 meters 15) When used for ethernet i'm sure the twisted pair uses what type of connector a) Rg58 b) rj11 c) rj45 d) rs232 16) What was the maximum number of nodes that could be connected to a 10base T hub? a) 100 b) 185 c) 500 d) 1024 17) Which of the following is not true of crossover cables? a) They are never a type of twisted pair cabling b) If they reverse the singing and receiving wirepairs c) They are used to connect switches d) Both ends of a crosser vocabulary are wired according to the t I a slash e I a 568 b standard 18) Which of the falling connectors were used by 10BASE FL cable(pick 2!) a) sc b) rj11 c) st d) rj45 19) Which networking devices can use the spending tree protocol(stp)? a) utp cables b) hubs c) media converters d) switches 20) What device directs packets based on MAC addresses? a) router b) hub c) switch d) repeater 21) With 100BASE-T, what is the maximum distance between the switch and the node? a) 1000 miles b) 400 meters c) 100 miles d) 100 meters 22) What type of connector and cable does 100BASE-FX use? a) multimode fiber with ST or SC connectors b) STP Cat 6 With RJ-45  c) Single-mode fiber with MT-RJ d) UTP Cat 5e with RJ45 23) What standard does IEEE 802.3ab describe? a) 1000BASE-LX b) 100BASE-T c) 1000BASE-T d) 1000BASE-SX 24) Which of the following connector would you typically find with a 40GbE installation? a) LC b) SFP c) QSFP+ d) XSFP+ 25) What is the big physical difference between 1000BASE-SX and 100BASE-FX? a) 1000BASE SX commonly uses the LC connector, whereas 100BASE-FX frequently uses the SC connector. b) 1000BASE-SX looks nicer. c) 1KBASE SX uses the ST connector exclusively. d) There is no difference. 26) What is a big advantage to using fiber-optic cable? a) Fiber is inexpensive common glass b) Making custom cable for your house is easy with fiber. c) Fiber is not affected by EMI. d) It just looks more appealing. 27) What is the maximum distance for 1000baseLX with repeaters? a) 1 miles b) 2500 meters c) 5000 meters d) 25000 foots e) 5kilometers 28) How many wire pairs does 1000BASE-T use? a) 1 b) 2 c) 3 d) 4 29) What is the standard connector for the 10 GbE fiber standard? a) St b) SC c) MT-RJ d) There is no standard! 30) What is the maximum cable length of 10GBASE-T on Cat 6? a) 55 meters b) 100 meters c) 20 meters d) 70 meters 31) Signals that can travel in only one direction on a medium are referred to as what type of signal? a) full-duplex b) duplex c) half-duplex d) simplex 32) Which statement accurately describes what near end crosstalk (NEXT) is? a) NEXT is crosstalk that occurs between wire pairs near the source of a signal. b) NEXT is crosstalk that occurs near the opposite end of a signal source. c) NEXT is crosstalk that occurs when an EMI source is near the data signal source. d) NEXT is crosstalk that occurs only when a cable segment exceeds the bend radius. 33) Bidirectional transceivers utilize what technology to separate the data in each direction? a) wavelength division multiplexing b) time division multiplexing c) frequency division multiplexing d) statistical time division multiplexing 34) A serial cable with an RJ-45 connector is capable of being used through an RJ-45 Ethernet port. a) True b) False 35) A short circuit is one where needed connections are missing, such as when a wire breaks. a) True b) False 36) Broadband cable Internet service and cable TV are most commonly delivered over long distances via what type of cable? a) RG-59 b) RG-6 c) RG-20 d) LRG-50 37) What multiplexing technology lowers cost by spacing frequency bands wider apart to allow for cheaper transceiver equipment? a) statistical time division multiplexing b) dense wavelength division multiplexing c) coarse wavelength division multiplexing d) spaced wavelength division multiplexing 38) A time domain reflectometer sends a signal and analyzes the return signal's change in amplitude to determine where cable imperfections may exist. a) T b) F 39) The ST and SC fiber connectors are the most commonly found connectors due to their smaller sizes. a) F b) T 40) What statement describes a transmission flaw that is occurring due to attenuation? a) A customer modem is continuously losing signal due to large distance from the transmitting device. b) A network switch interface is dropping due to a powerful radio transmitter in the adjacent room. c) A customer's video conferencing application is experiencing delay in audio and video that comes and goes. d) Two network interfaces are experiencing problems at the same time due to the cables having adjacent runs. 41) Which transmission characteristic is never fully achieved? a) Bandwidth b) Latency c) Bit rate d) Throughput 42) Which fiber connector contains two strands of fiber in each ferrule? a) LC b) ST c) sc d) mtrj 43) Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin? a) Blue b) White/green c) Brown d) White/orange 44) Which kind of multiplexing assigns slots to nodes according to priority and need? a) TDM (time division multiplexing) b) CWDM (coarse wavelength division multiplexing) c) WDM (wavelength division multiplexing) d) STDM (statistical time division multiplexing) 45) What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV? a) Twisted-pair cable, RJ-11 b) Coaxial cable, F-connector c) Fiber-optic cable, MTRJ d) Copper cable, RJ-45 46) Which kind of crosstalk occurs between wire pairs near the source of the signal? a) FEXT b) Alien c) NEXT d) Tx/Rx reverse 47) What type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable? a) Tx/Rx reverse b) Dirty connectors c) Wavelength mismatch d) Fiber type mismatch 48) What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions? a) Cat 5e b) Cat 5 c) Cat 7 d) Cat 6a 49) Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair? a) Toner collection unit b) Developer module c) Tone locator d) light emitting diode

Network + Practice Questions

สั่งพิมพ์
ฝัง

ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

สลับแม่แบบ

คืนค่าการบันทึกอัตโนมัติ: ใช่ไหม