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Cisco IT Essentials 7.0 - Chapter 5: Networking Concepts Exam

Cisco IT Essentials 7.0 - Chapter 5: Networking Concepts Exam

Questão 1 de 44

1

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.)

Selecione uma ou mais das seguintes:

  • web server

  • switch

  • router

  • email server

  • wireless access point

  • print server

Explicação

Questão 2 de 44

1

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

Selecione uma ou mais das seguintes:

  • access point

  • core switch

  • IP phone

  • modular switch

  • router

Explicação

Questão 3 de 44

1

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

Selecione uma ou mais das seguintes:

  • RFI

  • white noise

  • MDF

  • dispersion

  • EMI

Explicação

Questão 4 de 44

1

When would a printer be considered a network host?

Selecione uma das seguintes:

  • when it is connected to a switch

  • when it is connected to a workstation

  • when it is connected to a laptop

  • when it is connected to a PC

Explicação

Questão 5 de 44

1

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

Selecione uma das seguintes:

  • Bluetooth

  • fiber optic cabling

  • IEEE 802.11n wireless

  • coaxial cabling

Explicação

Questão 6 de 44

1

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?

Selecione uma das seguintes:

  • STP

  • coaxial

  • fiber optic

  • UTP

Explicação

Questão 7 de 44

1

How many devices can a Bluetooth device connect to simultaneously?

Selecione uma das seguintes:

  • 127

  • 7

  • 10

  • 24

  • 5

Explicação

Questão 8 de 44

1

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

Selecione uma das seguintes:

  • repeater

  • hub

  • switch

  • router

Explicação

Questão 9 de 44

1

What is a common function of a proxy server?

Selecione uma das seguintes:

  • to store frequently accessed web pages on the internal network

  • to control who is permitted to access the internal network

  • to detect malicious signatures by monitoring traffic that is entering the internal network

  • to provide access to a shared pool of configurable computing resources

Explicação

Questão 10 de 44

1

What is a characteristic of a WAN?

Selecione uma das seguintes:

  • It connects multiple networks that are geographically separated.

  • It spans across a campus or city to enable sharing of regional resources.

  • It is typically owned and managed by a single home or business.

  • It requires a wireless access point to connect users to the network.

Explicação

Questão 11 de 44

1

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

Selecione uma das seguintes:

  • application, session, network, data link, physical

  • application, internet, network access, transport

  • network access, transport, internet, application

  • application, transport, internet, network access

Explicação

Questão 12 de 44

1

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

Selecione uma das seguintes:

  • 802.11n

  • 802.11g

  • 802.11b

  • 802.11a

Explicação

Questão 13 de 44

1

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

Selecione uma das seguintes:

  • green and orange

  • green and brown

  • blue and brown

  • brown and orange

Explicação

Questão 14 de 44

1

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

Selecione uma das seguintes:

  • switch

  • router

  • access point

  • modem

Explicação

Questão 15 de 44

1

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

Selecione uma das seguintes:

  • ISDN

  • POTS

  • satellite

  • cable

  • fiber

Explicação

Questão 16 de 44

1

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

Selecione uma das seguintes:

  • switch

  • server

  • DSL modem

  • wireless access point

Explicação

Questão 17 de 44

1

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

Selecione uma das seguintes:

  • 67

  • 68

  • 20

  • 80

  • 53

Explicação

Questão 18 de 44

1

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?

Selecione uma das seguintes:

  • The data flow is being tracked based on the destination MAC address of the technician PC.

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

  • The data flow is being tracked based on the source IP address that is used by the PC of the technician.

  • The data flow is being tracked based on the destination IP address that is used by the PC of the technician.

Explicação

Questão 19 de 44

1

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

Selecione uma das seguintes:

  • DHCP

  • DNS

  • print

  • authentication

  • syslog

Explicação

Questão 20 de 44

1

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

Selecione uma das seguintes:

  • router

  • endpoint management server

  • proxy server

  • UTM

  • TPM

Explicação

Questão 21 de 44

1

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

Selecione uma das seguintes:

  • 802.11ac

  • 802.11n

  • Z-Wave

  • Zigbee

Explicação

Questão 22 de 44

1

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

Selecione uma das seguintes:

  • cloud-based network controller

  • Power over Ethernet

  • switch that supports VLANs

  • powerline networking

Explicação

Questão 23 de 44

1

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?

Selecione uma das seguintes:

  • line of sight wireless

  • satellite

  • hotspot

  • cellular

Explicação

Questão 24 de 44

1

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

Selecione uma das seguintes:

  • DHCP

  • email

  • proxy

  • syslog

Explicação

Questão 25 de 44

1

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

Selecione uma das seguintes:

  • FTP

  • LDAP

  • SLP

  • SNMP

Explicação

Questão 26 de 44

1

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

Selecione uma das seguintes:

  • NetBIOS (NetBT)

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 27 de 44

1

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

Selecione uma das seguintes:

  • SSH

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 28 de 44

1

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

Selecione uma das seguintes:

  • IMAP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 29 de 44

1

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

Selecione uma das seguintes:

  • SNMP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 30 de 44

1

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

Selecione uma das seguintes:

  • Telnet

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 31 de 44

1

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

Selecione uma das seguintes:

  • LDAP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 32 de 44

1

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

Selecione uma das seguintes:

  • SMTP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicação

Questão 33 de 44

1

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

Selecione uma das seguintes:

  • LDAP

  • POP3

  • HTTP

  • NetBIOS (NetBT)

Explicação

Questão 34 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 35 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 36 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 37 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 38 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 39 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 40 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 41 de 44

1

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

Selecione uma das seguintes:

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

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

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

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

Explicação

Questão 42 de 44

1

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

Selecione uma das seguintes:

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

  • It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.

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

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

Explicação

Questão 43 de 44

1

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

Selecione uma das seguintes:

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

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

  • It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.

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

Explicação

Questão 44 de 44

1

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

Selecione uma das seguintes:

  • DNS

  • NetBIOS (NetBT)

  • POP3

  • IMAP

Explicação

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