NETWORKING INFRASTRUCTURES

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51) What are the two WEP key lengths?

1 point

A) 8 bit/16 bit

B) 16 bit/32 bit

C) 64bit/128bit

D) 32 bit/64 bit

Clear selection

52) At the end of each day, your supervisor asks you to lock up the rooms in which the equipment is stored and to make sure that the security cameras are properly working. These measure will ensure the ________ security of devices.

1 point

A) logical

B) environmental

C) physical

D) electrical

Clear selection

53) What is the name of the type of malware that restricts access to a computer system by encrypting files or locking the entire system down until the user performs a requested action?

1 point

A) spyware

B) adware

C) grayware

D) ransomware

Clear selection

54) What type of security threat prevents users from accessing services to which they should be entitled to?

1 point

A) identity theft

B) information theft

C) data loss and manipulation

D) disruption of service

Clear selection

55) Which network security feature allows internal IP addresses to be hidden from external users?

1 point

A) WEP

B) NAT

C) DNS

D) DHCP

Clear selection

56) What does the acronym SSID stand for?

1 point

A) Service Solution Identifier

B) Security Set Identifier

C) Service Set Identifier

D) Security Service Information

Clear selection

57) Which of the following would be classified as an access attack?

1 point

A) Trojan horse

B) DoS

C) password attack

D) zero-day attack

Clear selection

58) What is an attachment to an electronic message that is used to verify that the sender is who they say they are?

1 point

A) digital certificate

B) security attachment

C) data packet

D) encryption

Clear selection

59) Which of the following is not a way to secure a wireless network?

1 point

A) Filter MAC addresses

B) Disable SSID broadcasting

C) Designate time restrictions

D) Data encryption

Clear selection

60) Which of the following reconnaissance attack tools are used to search the publicly available IP addresses to identify the addresses that are active?

1 point

A) packet sniffers

B) port scans

C) ping sweeps

D) Internet queries

Clear selection

61) What mulitiport device connects network segments and allows full bandwidth on all ports?

1 point

A) repeater

B) MAU

C) hub

D) switch

Clear selection

62) Which of the following networking devices increase the number of collision domains?

1 point

A) multiport repeater

B) repeater

C) hub

D) switch

Clear selection

63) What do routers use to select the best path for outgoing data packets?

1 point

A) bridging tables

B) switching tables

C) routes

D) routing tables

Clear selection

64) If a switch needs to connect to a router, which of the router interfaces would it use?

1 point

A) Ethernet

B) Auxiliary Port

C) Serial Interface

D) Fast Ethernet

Clear selection

65) How can a technician tell the difference between a patch cable and a crossover cable?

1 point

A) By looking at the labeling imprinted on the cable.

B) Crossover cables are longer than patch cables.

C) Crossover cables and patch cables have different connector ends.

D) Patch cables and crossover cables are different colors.

Clear selection

66) A NIC, which has a connector for an RJ-45, is using which type of network media?

1 point

A) Fiber Optic

B) IR

C) Twisted Pair

D) Thin Net

Clear selection

67) Which of the following is most commonly used in an FDDI cabling system?

1 point

A) Coaxial

B) STP

C) Fiber-optic

D) UTP

Clear selection

68) When choosing the appropriate NIC for a system, all of the following would be considered EXCEPT:

1 point

A) Bandwidth requirements

B) Bus mastering capabilities

C) Network type

D) MAC address compatibility

Clear selection

69) Which of the following technologies configures two or more hard drives to work together as an array of drives to improve fault tolerance and improve performance by writing data to two or more hard drives so that a single hard drive is not excessively used?

1 point

A) SMP

B) RAID

C) SCSI

D) Hot-swappable

Clear selection

70) Which wireless technology allows for the creation of a PAN?

1 point

A) 802.11n

B) Bluetooth

C) 802.11b

D) WiMAX

Clear selection

71) What is the name of the wireless technology that can support up to 75 Mbps with a range up to several miles and uses 2- to 11 GHz frequency?

1 point

A) TDMA

B) GSM

C) WiMAX

D) Wi-Fi

Clear selection

72) Which of the following does not describe characteristics of baseband technologies?

1 point

A) Baseband typically uses digital signaling over a single wire.

B) Baseband can send and receive at the same time if the transmission media is split into two channels.

C) Baseband transmissions cannot be sent and received at the same time.

D) Baseband transmissions occupy the entire bandwidth of network media.

Clear selection

73) You work as a sales associate at a local electronics store. Your customer is looking for an Internet service plan along with a modem that provides them with a high bandwidth, always on, connection to the Internet that utilizes their existing phone line. Which service and modem would you recommend to your customer?

1 point

A) Cellular

B) Satellite

C) Cable

D) DSL

Clear selection

74) An inbound modem converts:

1 point

A) Analog to Analog

B) Digital to Analog

C) Analog to Digital

D) Digital to Digital

Clear selection

75) You've been asked by your supervisor to research new possible operating systems for the ABC Company using one of their current PCs. The company is running a Windows OS, but would like to look at Linux and Mac operating systems as possibilities. Which method listed below would be the best option to test out the systems?

1 point

A) Uninstall Windows and install each of the test systems separately.

B) Research what you can on the Internet.

C) Use a dual boot configuration to choose the test OS at startup.

D) Create a virtual machine to run and test the software.

Clear selection

76) In what year was the OSI reference model developed?

1 point

A) 1980

B) 1976

C) 1988

D) 1984

Clear selection

77) Data link layer addresses is used for what type of delivery?

1 point

A) local delivery

B) local and remote delivery

C) remote delivery

D) remote delivery using a router

Clear selection

78) What is the function of Layer 3 of the OSI model?

1 point

A) Physical connection for bit transmission to and from a network device.

B) Exchange pieces of data over the network between identified end devices.

C) Describe the ordered and reliable delivery of data between source and destination.

D) Provides the means for end to end connectivity.

Clear selection

79) What organization is responsible for the development of the OSI reference model used in networking?

1 point

A) ISOC

B) ISO

C) IEEE

D) IANA

Clear selection

80) Which OSI layer provides network services to the applications of the user, such as e-mail, file transfer, and terminal emulation?

1 point

A) datalink

B) presentation

C) application

D) session

Clear selection

81) Which of the following devices operate at the Physical layer of the OSI model?

1 point

A) switch

B) router

C) gateway

D) hub

Clear selection

82) The Internet uses the network protocol called ______________.

1 point

A) HTTP

B) FTP

C) TCP/IP

D) CSMA/CD

Clear selection

83) Which OSI layer uses either TCP or UDP for transmission of data?

1 point

A) Physical

B) Session

C) Network

D) Transport

Clear selection

84) Which device operates at the network layer of the OSI model where the logical address would be encapsulated?

1 point

A) bridge

B) NIC

C) switch

D) router

Clear selection

85) Where is a hub specified in the OSI model?

1 point

A) application layer

B) data link layer

C) session layer

D) physical layer

Clear selection

86) Which of the following network topologies connects network devices directly to each other in a linear fashion?

1 point

A) bus

B) mesh

C) ring

D) star

Clear selection

87) For an end device to connect to the internet, it must be assigned a unique ______ address.

1 point

A) IP

B) FTP

C) DNS

D) HTTPS

Clear selection

88) HTTP is assigned which default port number?

1 point

A) 115

B) 20

C) 80

D) 25

Clear selection

89) In which situation would you use an Ethernet straight through cable?

1 point

A) Connecting a router to a computer.

B) Connecting a switch to a hub.

C) Connecting a computer to a print server.

D) Connecting a switch to a switch.

Clear selection

90) Which of the following best describes 802.11n technologies?

1 point

A) Short-range wireless technology used for a PAN.

B) First widely used 802.11 standard.

C) Wi-Fi technology that is capable up to speeds of 160 Mbps.

D) Wireless technology that ranges up to 6 miles.

Clear selection

91) What command can be used on a Windows computer to lease a new IP address from a DHCP server?

1 point

A) Ipconfig /new

B) Ipconfig /all

C) Ipconfig /renew

D) Ipconfig /lease

Clear selection

92) In what type of system are participants able to electronically share data, voice and images seamlessly?

1 point

A) telepresence

B) teleconference

C) instant message

D) telephone conference call

Clear selection

93) Which of the following wired network technologies have dedicated lines used by large companies that require a lot of bandwidth and transmit extensive amounts of data up to 45 Mbps?

1 point

A) T3

B) Fast Ethernet

C) Gigabit Ethernet

D) VDSL

Clear selection

94) Which of the following are not advantages of a wireless network?

1 point

A) T3

B) Fast Ethernet

C) Gigabit Ethernet

D) VDSL

Clear selection

95) Which of the following situations would not be a concern with Wi-Fi?

1 point

A) cost of equipment

B) interference

C) signal range limitations

D) compatibility issues with Ethernet standard

Clear selection

96) Which of the following networking technologies will provide its end user with the highest speed?

1 point

A) dial-up networking

B) Fast Ethernet

C) fiber optic

D) cable modem

Clear selection

97) A local university campus is seeing an increase in the number of students brining their own mobile devices onto campus to access school resources. As a result of the increase which network area would the IT staff most likely need to redesign?

1 point

A) wireless LAN

B) intranet

C) extranet

D) wireless WAN

Clear selection

98) 802.11n networks use what type of topology?

1 point

A) bus

B) star

C) wireless

D) mesh

Clear selection

99) What is the maximum length on a cable segment on a 10BaseT network?

1 point

A) 100 meters

B) 500 meters

C) 1000 meters

D) 2000 meters

Clear selection

100) Which of the following statements is true about single-mode fiber optic cable?

1 point

A) Single-mode is typically used in LANs or small distances.

B) Single-mode has a larger core.

C) Single-mode has higher attenuation than multimode.

D) Single-mode provides the highest throughput.

Clear selection

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