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It3 Flashcards

1
Q

A technician is searching through a storage locker and finds a firewall. What is the purpose of this device?

A

It is placed between two or more networks and protects data and equipment from unauthorized access.

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2
Q

Which type of server would be used to keep a historical record of messages from monitored network devices?

A

syslog

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3
Q

Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)

A

EMI
RFI

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4
Q

What is a characteristic of a WAN?

A

It connects multiple networks that are geographically separated.

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5
Q

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?

A

fiber optic

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6
Q

Which device provides wireless connectivity to users as its primary function?

A

access point

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7
Q

A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)

A

switch
wireless access point
router

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8
Q

Which two devices are commonly powered by PoE? (Choose two.)

A

IP phone
access point

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9
Q

Which pairs of wires change termination order between the 568A and 568B standards?

A

green and orange

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10
Q

Which smart home wireless technology has an open standard that allows up to 232 devices to be connected?

A

Z-Wave

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11
Q

Which network device allows administrators to remotely manage many devices through one dashboard interface?

A

cloud-based network controller

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12
Q

What type of connector is used to connect an analog modem to a telephone line socket?

A

RJ-11

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13
Q

Which satellite service can support up to approximately 100 Mbps with much lower latency than standard satellite?

A

LEO

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14
Q

Which technology is most often used to connect devices to a PAN?

A

Bluetooth

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15
Q

How many devices can a Bluetooth device connect to simultaneously?

A

7

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16
Q

Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?

A

802.11n

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17
Q

Which device acts as a termination point for cable runs and keeps cables secure and safely out of walkways?

A

patch panel

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18
Q

Which internet connection type is an always-on service that uses radio signals sent from a tower to a receiver in a home or business?

A

line of sight wireless

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19
Q

What is the correct order of the layers of the TCP/IP model from the top layer to the bottom?

A

application, transport, internet, network access

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20
Q

What is a feature of a dial-up connection?

A

the use of an analog modem to transmit data over voice telephone lines

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21
Q

a user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?

A

DSL modem

22
Q

A client packet is received by a server. The packet has a destination port number of 389. What service application is the client requesting?

A

LDAP

23
Q

A client packet is received by a server. The packet has a destination port number of 22. What service application is the client requesting?

A

SSH

24
Q

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?

A

switch

25
Q

Which type of server would support the SMTP, POP, and IMAP protocols?

A

email

26
Q

Which type of connection to the Internet is capable of the fastest transfer rates?

A

fiber

27
Q

Which well-known port number is used by the DHCP (client) protocol?

A

68

28
Q

A technician is searching through a storage locker and finds a DSL modem. What is the purpose of this device?

A

It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.

29
Q

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

A

The data flow is being tracked based on the source port number that is used by each application.

30
Q

Which network device would be the most appropriate to provide stateful packet filtering, email filtering, and VPN services?

A

UTM

31
Q

A client packet is received by a server. The packet has a destination port number of 21. What service application is the client requesting?

A

FTP

32
Q

When would a printer be considered a network host?

A

when it is connected to a switch

33
Q

A technician is searching through a storage locker and finds a PoE injector. What is the purpose of this device?

A

It is a device that can be inserted in the middle of a cable run to add power.

34
Q

A client packet is received by a server. The packet has a destination port number of 143. What service application is the client requesting?

A

IMAP

35
Q

A client packet is received by a server. The packet has a destination port number of 23. What service application is the client requesting?

A

Telnet

36
Q

A client packet is received by a server. The packet has a destination port number of 25. What service application is the client requesting?

A

SMTP

37
Q

A client packet is received by a server. The packet has a destination port number of 137. What service application is the client requesting?

A

NetBIOS (NetBT)

38
Q

A client packet is received by a server. The packet has a destination port number of 53. What service application is the client requesting?

A

DNS

39
Q

A technician is searching through a storage locker and finds a managed switch. What is the purpose of this device?

A

It connects multiple end devices and can be configured for VLANs and port security.

40
Q

A technician is searching through a storage locker and finds a Powerline networking connector. What is the purpose of this device?

A

It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies

41
Q

A technician is searching through a storage locker and finds a cable modem. What is the purpose of this device?

A

It connects a home or business network to a company that provides internet connectivity as well as television signals.

42
Q

A client packet is received by a server. The packet has a destination port number of 161. What service application is the client requesting?

A

SNMP

43
Q

A technician is searching through a storage locker and finds an unmanaged switch. What is the purpose of this device?

A

It is a device whose sole purpose is to connect end devices and to microsegment a LAN.

44
Q

What is a common function of a proxy server?

A

to store frequently accessed web pages on the internal network

45
Q

A technician is searching through a storage locker and finds an access point. What is the purpose of this device?

A

It uses radio waves to provide network access to wireless devices.

46
Q

A technician is searching through a storage locker and finds a Cisco ASA 5505-X (UTM). What is the purpose of this device?

A

It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

47
Q

A technician is searching through a storage locker and finds a cloud-based network controller. What is the purpose of this device?

A

It is a device that allows a network administrator to manage many remote networking devices from a central location.

48
Q

A technician is searching through a storage locker and finds an Ethernet NIC. What is the purpose of this device?

A

It is needed to connect a computer to a wired local-area network.

49
Q

A technician is searching through a storage locker and finds a router. What is the purpose of this device?

A

It connects networks and forwards traffic to remote networks by using IP addressing information.

50
Q

A technician is searching through a storage locker and finds a patch panel. What is the purpose of this device?

A

It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

51
Q

Which IEEE standard is used for PoE?

A

802.3af

52
Q
A

it (15 decks)

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